- stunnel-users - stunnel.org

SNI and some troubles solving
by Alexey Drozdov 10 Sep '11

10 Sep '11

Hi All, At first I would like to thank Marzena Trojnara for the useful program! Occurrence of support SNI has especially interest. I have decided to use the given possibility, but have detect pair of bugs which has independently successfully solved. To begin with I dump part of my config: [virtual_server] accept = 443 connect = localhost:1081 cert = /usr/local/etc/stunnel/alexCA.crt key = /usr/local/etc/stunnel/alexCA.key ; need peer verification for default access verify = 2 CAfile = /usr/local/etc/stunnel/alexCA.crt ; use restricted access form some target services [socks5] sni = virtual_server:localhost sni = virtual_server:89.250.5.185 sni = virtual_server:127.0.0.1 sni = virtual_server:server cert = /usr/local/etc/stunnel/alexCA.crt key = /usr/local/etc/stunnel/alexCA.key verify = 2 CAfile = /usr/local/etc/stunnel/alexCA.crt connect = localhost:1081 ; public service [dreamhub_ru] sni = virtual_server:dreamhub.ru sni = virtual_server:pad.dreamhub.ru cert = /usr/local/etc/stunnel/dreamhub.cer key = /usr/local/etc/stunnel/dreamhub.pem connect = localhost:80 I want to use stunnel on 443rd port for ssl-socks5 service with peer certificates verification and use public https web-service (https://dreamhub.ru). And so it has appeared that value for "verify" are always used from global section (in my case [virtual_server]), and values of "verify" parameters from virtual services sections aren't used. Problem it has appeared that in the SNI check callback static int servername_cb(SSL *ssl, int *ad, void *arg) ... for(list=section->servername_list_head; list; list=list->next) if(!strcasecmp(servername, list->servername)) { c=SSL_get_ex_data(ssl, cli_index); c->opt=list->opt; SSL_set_SSL_CTX(ssl, c->opt->ctx); s_log(LOG_NOTICE, "SNI: switched to section %s", c->opt->servname); SSL_set_SSL_CTX(ssl, c->opt->ctx); does not copy ctx->verify_mode (SSL*)s->verify_mode=ctx->verify_mode; It has been solved by explicit calling SSL_set_verify *** ctx.c 2011-09-07 14:43:50.000000000 +0400 --- ctx.c_patched 2011-09-10 01:12:48.000000000 +0400 *************** *** 156,161 **** --- 156,162 ---- c=SSL_get_ex_data(ssl, cli_index); c->opt=list->opt; SSL_set_SSL_CTX(ssl, c->opt->ctx); + SSL_set_verify(ssl, SSL_CTX_get_verify_mode(c->opt->ctx), +NULL); s_log(LOG_NOTICE, "SNI: switched to section %s", c->opt->servname); #ifdef USE_LIBWRAP The second moment concerns uses stunnel as client through HTTPS a proxy (protocol=connect). All works perfectly, only it has appeared that value for SNI used from "connect" parameter instead of value of "protocolHost". On a code all is quite obvious: if(c->opt->host_name) { s_log(LOG_DEBUG, "SNI: host name: %s", c->opt->host_name); if(!SSL_set_tlsext_host_name(c->ssl, c->opt->host_name)) { sslerror("SSL_set_tlsext_host_name"); longjmp(c->err, 1); } } I solved it such: *** options.c 2011-09-07 20:38:56.000000000 +0400 --- options.c_patch 2011-09-10 16:34:56.882619049 +0400 *************** *** 695,700 **** --- 695,705 ---- s_log(LOG_INFO, "Cannot resolve '%s' - delaying DNS lookup", arg); section->option.delayed_lookup=1; } + + /* check - is host_name already filled */ + if (section->host_name != NULL) + return NULL; /* OK */ + tmpstr=strrchr(arg, ':'); if(tmpstr) { *tmpstr='\0'; *************** *** 1077,1082 **** --- 1082,1095 ---- if(strcasecmp(opt, "protocolHost")) break; section->protocol_host=str_dup_err(arg); + + /* Overwrite section->host_nam because of + protocolHost should be used for client SNI */ + tmpstr=strrchr(arg, ':'); + if(tmpstr) { + *tmpstr='\0'; + section->host_name=str_dup_err(arg); + } return NULL; /* OK */ case CMD_DEFAULT: break; I think that the given changes can be useful for other :) / Alexey Drozdov

2 1

SNI and some troubles solving
by Alexey Drozdov 10 Sep '11

10 Sep '11

Hi All, At first I would like to thank Marzena Trojnara for the useful program! Occurrence of support SNI has especially interest. I have decided to use the given possibility, but have detect pair of bugs which has independently successfully solved. To begin with I dump part of my config: [virtual_server] accept = 443 connect = localhost:1081 cert = /usr/local/etc/stunnel/alexCA.crt key = /usr/local/etc/stunnel/alexCA.key ; need peer verification for default access verify = 2 CAfile = /usr/local/etc/stunnel/alexCA.crt ; use restricted access form some target services [socks5] sni = virtual_server:localhost sni = virtual_server:89.250.5.185 sni = virtual_server:127.0.0.1 sni = virtual_server:server cert = /usr/local/etc/stunnel/alexCA.crt key = /usr/local/etc/stunnel/alexCA.key verify = 2 CAfile = /usr/local/etc/stunnel/alexCA.crt connect = localhost:1081 ; public service [dreamhub_ru] sni = virtual_server:dreamhub.ru sni = virtual_server:pad.dreamhub.ru cert = /usr/local/etc/stunnel/dreamhub.cer key = /usr/local/etc/stunnel/dreamhub.pem connect = localhost:80 I want to use stunnel on 443rd port for ssl-socks5 service with peer certificates verification and use public https web-service (https://dreamhub.ru). And so it has appeared that value for "verify" are always used from global section (in my case [virtual_server]), and values of "verify" parameters from virtual services sections aren't used. Problem it has appeared that in the SNI check callback static int servername_cb(SSL *ssl, int *ad, void *arg) ... for(list=section->servername_list_head; list; list=list->next) if(!strcasecmp(servername, list->servername)) { c=SSL_get_ex_data(ssl, cli_index); c->opt=list->opt; SSL_set_SSL_CTX(ssl, c->opt->ctx); s_log(LOG_NOTICE, "SNI: switched to section %s", c->opt->servname); SSL_set_SSL_CTX(ssl, c->opt->ctx); does not copy ctx->verify_mode (SSL*)s->verify_mode=ctx->verify_mode; It has been solved by explicit calling SSL_set_verify *** ctx.c 2011-09-07 14:43:50.000000000 +0400 --- ctx.c_patched 2011-09-10 01:12:48.000000000 +0400 *************** *** 156,161 **** --- 156,162 ---- c=SSL_get_ex_data(ssl, cli_index); c->opt=list->opt; SSL_set_SSL_CTX(ssl, c->opt->ctx); + SSL_set_verify(ssl, SSL_CTX_get_verify_mode(c->opt->ctx), +NULL); s_log(LOG_NOTICE, "SNI: switched to section %s", c->opt->servname); #ifdef USE_LIBWRAP The second moment concerns uses stunnel as client through HTTPS a proxy (protocol=connect). All works perfectly, only it has appeared that value for SNI used from "connect" parameter instead of value of "protocolHost". On a code all is quite obvious: if(c->opt->host_name) { s_log(LOG_DEBUG, "SNI: host name: %s", c->opt->host_name); if(!SSL_set_tlsext_host_name(c->ssl, c->opt->host_name)) { sslerror("SSL_set_tlsext_host_name"); longjmp(c->err, 1); } } I solved it such: *** options.c 2011-09-07 20:38:56.000000000 +0400 --- options.c_patch 2011-09-10 16:34:56.882619049 +0400 *************** *** 695,700 **** --- 695,705 ---- s_log(LOG_INFO, "Cannot resolve '%s' - delaying DNS lookup", arg); section->option.delayed_lookup=1; } + + /* check - is host_name already filled */ + if (section->host_name != NULL) + return NULL; /* OK */ + tmpstr=strrchr(arg, ':'); if(tmpstr) { *tmpstr='\0'; *************** *** 1077,1082 **** --- 1082,1095 ---- if(strcasecmp(opt, "protocolHost")) break; section->protocol_host=str_dup_err(arg); + + /* Overwrite section->host_nam because of + protocolHost should be used for client SNI */ + tmpstr=strrchr(arg, ':'); + if(tmpstr) { + *tmpstr='\0'; + section->host_name=str_dup_err(arg); + } return NULL; /* OK */ case CMD_DEFAULT: break; I think that the given changes can be useful for other :) / Alexey Drozdov

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stunnel 4.43 released
by Michal Trojnara 08 Sep '11

08 Sep '11

Dear Users, I have released version 4.43 of stunnel. The ChangeLog entry: Version 4.43, 2011.09.07, urgency: MEDIUM: * New features - Updated Win32 DLLs for OpenSSL 1.0.0e. - Major optimization of the logging subsystem. Benchmarks indicate up to 15% performance improvement. * Bugfixes - Fixed WIN32 configuration file reload. - Fixed FORK and UCONTEXT threading models. - Corrected INSTALL.W32 file. Home page: http://www.stunnel.org/ Download: ftp://ftp.stunnel.org/stunnel/ SHA-256 hash for stunnel-4.43.tar.gz: 93a002d9e1652d7684756af75b44b00f99aa93574e8a5a2e69f88656221d5ce2 Best regards, Mike

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SSL3_READ_BYTES:tlsv1 alert internal error
by Andrew Heuneman 07 Sep '11

07 Sep '11

Hello, We recently implemented Stunnel on Centos 5.6 for ssl offloading for our java application. The application has applets to communicate java objects over https to a tomcat server on the server side. We have it setup in front of our Alteon/Radware load balancer. This hardware load balancer is capable of ssl load balancing, but has produced a very specific packet reset that only presents itself in ssl processing. We decided to implement Stunnel in front of this load balancer to fix this problem. Ssl offloading was working great with Stunnel until we ran into Java 7. if I run any version of our applets on java 6 they work. If i run java 7 they do not work. I have tried googling and looking for this error but I have only found some references to SNI... is this correct? Is there anything I can do. Please forgive me if i have omitted any details I will be more than happy to include a packet capture or other details if needed. I compiled stunnel with the following options ./configure --disable-libwrap --bindir=/usr/sbin --sbindir=/usr/sbin --sysconfdir=/etc --with-ssl=/usr/local/ssl also i compiled OpenSSL 1.0.0d with the following ./Configure threads shared linux-generic64 stunnel -version No limit detected for the number of clients signal_pipe: FD=3 allocated (non-blocking mode) signal_pipe: FD=4 allocated (non-blocking mode) stunnel 4.42 on x86_64-unknown-linux-gnu platform Compiled/running with OpenSSL 1.0.0d 8 Feb 2011 Threading:PTHREAD SSL:ENGINE Auth:none Sockets:POLL,IPv6 stunnel 4.42 on x86_64-unknown-linux-gnu platform Compiled/running with OpenSSL 1.0.0d 8 Feb 2011 Threading:PTHREAD SSL:ENGINE Auth:none Sockets:POLL,IPv6 Global option defaults debug = daemon.notice pid = /usr/local/var/run/stunnel/stunnel.pid RNDbytes = 64 RNDfile = /dev/urandom RNDoverwrite = yes Service-level option defaults ciphers = ALL:!SSLv2:!aNULL:!EXP:!LOW:-MEDIUM:RC4:+HIGH curve = prime256v1 session = 300 seconds sslVersion = TLSv1 for client, all for server stack = 65536 bytes TIMEOUTbusy = 300 seconds TIMEOUTclose = 60 seconds TIMEOUTconnect = 10 seconds TIMEOUTidle = 43200 seconds verify = none str_stats: 112 block(s), 4046 byte(s) stunnel.conf cert=/etc/stunnel/stunnel.pem debug=7 output=/var/log/stunnel.log socket=l:TCP_NODELAY=1 socket=r:TCP_NODELAY=1 [https] accept=0.0.0.0:443 connect=172.16.18.100:80 session = 300 TIMEOUTbusy = 300 TIMEOUTconnect = 10 TIMEOUTidle = 43200 client = no stunnel.log 2011.08.22 16:58:49 LOG7[438154:47689394220768]: Service https accepted FD=2 from 10.0.11.27:46830 2011.08.22 16:58:49 LOG7[438154:1104877888]: Service https started 2011.08.22 16:58:49 LOG7[438154:1104877888]: Option TCP_NODELAY set on local socket 2011.08.22 16:58:49 LOG5[438154:1104877888]: Service https accepted connection from 10.0.11.27:46830 2011.08.22 16:58:49 LOG7[438154:1104877888]: SSL state (accept): before/accept initialization 2011.08.22 16:58:49 LOG7[438154:1104877888]: SSL state (accept): SSLv3 read client hello A 2011.08.22 16:58:49 LOG7[438154:1104877888]: SSL state (accept): SSLv3 write server hello A 2011.08.22 16:58:49 LOG7[438154:1104877888]: SSL state (accept): SSLv3 write certificate A 2011.08.22 16:58:49 LOG7[438154:1104877888]: SSL state (accept): SSLv3 write key exchange A 2011.08.22 16:58:49 LOG7[438154:1104877888]: SSL state (accept): SSLv3 write certificate request A 2011.08.22 16:58:49 LOG7[438154:1104877888]: SSL state (accept): SSLv3 flush data 2011.08.22 16:58:49 LOG7[438154:1104877888]: SSL alert (read): fatal: internal error 2011.08.22 16:58:49 LOG3[438154:1104877888]: SSL_accept: 14094438: error:14094438:SSL routines:SSL3_READ_BYTES:tlsv1 alert internal error 2011.08.22 16:58:49 LOG5[438154:1104877888]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2011.08.22 16:58:49 LOG7[438154:1104877888]: Service https finished (1 left) 2011.08.22 16:58:49 LOG7[438154:1104877888]: str_stats: 0 block(s), 0 byte(s) 2011.08.22 16:59:01 LOG7[438154:1104947520]: Socket closed on read 2011.08.22 16:59:01 LOG7[438154:1104947520]: Sending SSL write shutdown 2011.08.22 16:59:01 LOG7[438154:1104947520]: SSL alert (write): warning: close notify 2011.08.22 16:59:01 LOG6[438154:1104947520]: SSL_shutdown successfully sent close_notify 2011.08.22 16:59:01 LOG7[438154:1104947520]: SSL alert (read): warning: close notify 2011.08.22 16:59:01 LOG7[438154:1104947520]: SSL closed on SSL_read 2011.08.22 16:59:01 LOG7[438154:1104947520]: Sending socket write shutdown 2011.08.22 16:59:01 LOG5[438154:1104947520]: Connection closed: 49445 bytes sent to SSL, 8175 bytes sent to socket -- Thank You, Andrew Heuneman Senior Systems Administrator Reading Plus®/Taylor Associates Helping students become proficient silent readers. <http://twitter.com/readingplus> <http://www.facebook.com/pages/Reading-Plus/165970877038>

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Internal error after reload modified server mode section
by Javier 07 Sep '11

07 Sep '11

Hi, I didn't found this question, so I hope isn't duplicate. I'm using the latest stable 4.42 version and I'm running Windows 2000 and I want to ask is this is a normal behavior. What is happening is that, after change the server section in the config file (the rest are all client mode), if it has been any connection to that server (and only if it has been a connection), when I reload the modified conf, it gives...: INTERNAL ERROR: get_alloc_list_ptr: Bad magic str_stats: 380 block(s), 96684 byte(s) This happens after no errors in the load (except for DH being hardcoded), SSL context initialized Configuration successful after open every service (clients and server) and then, after the error, closes every service. Trying to reload the conf, doesn't nothing, just stunnel hangs (is not responding to reloads). The only way to restart all is to close stunnel and reopen. Then, the configuration is accepted without problems and works perfectly. This happens, as I said, after modify the conf file and if it was a connection. The section is related to a local test server, where I modify the IP and/or ports where to accept and where to connect. As general options I have: debug = debug delay = yes And the server section: [mySSL] client = no cert = mytestpem.pem accept = 127.0.0.1:443 connect = 127.0.0.1:80 What I'm doing wrong? Is the normal behavior? Is it a new bug? Regards, Javier.

3 5

Compiling Stunnel For Windows
by Albert 05 Sep '11

05 Sep '11

Hi, I want to compile stunnel for windows, to include the XMPP patch (that I managed to apply cleanly to the current stunnel code) that I saw on the mailing list earlier as I need to get it to connect to a SSL only server in client mode. I followed the instructions in the Install.w32 file 1) apt-get install gcc-mingw32 - Worked fine with no issues 2) Download the recent zlib from http://www.zlib.net/ , Update the following definitions in win32/Makefile.gcc file: etc *snip* Worked fine as far as I can tell 3) Download the recent OpenSSL in unpack it to /usr/src/ directory., cd /usr/src && tar zvxf ~/openssl-(version).tar.gz I got OpenSSL 1.0.0d 4) Build OpenSSL with cross_mingw32.sh script. I ran instead ./Configure --cross-compile-prefix=i586-mingw32msvc- mingw shared zlib-dynamic && make it seems to have worked fine 5) Download and unpack stunnel-(version).tar.gz. -got stunnel 4.42 6) Configure stunnel. cd stunnel-(version) && ./configure --with-ssl=/path/to/openssl-(version) This step worked fine 7) Build windows executable. cd src && make stunnel.exe The first few compile steps work fine, but I get stuck on: ...i586-mingw32msvc/bin/ld: cannot find -lcrypto.dll I did a few hours of troubleshooting and trying to move a few files around but couldn't find crypto.dll anywhere I'm running a fresh install of Ubuntu 11.04 in a VM if that makes any difference. Help would be greatly appreciated :) Thanks, Albert

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Changing the secure tunnel 'encryption' method ....
by VANDOOREN, Pascal 02 Sep '11

02 Sep '11

Hello Everyone, I have a question, Why use you a certificate and not a hash AES, or other crypting algorithm to make a secure tunnel ? Because i use not a validate cert and i can only generate a cert valid for maximum 1year ... In the config file you can let the choice to use the cert or hash .. It's only a idea Kind regards Pascal -- This e-mail is confidential. If you are not the addressee or an authorized recipient of this message, any distribution, copying, publication or use of this information for any purpose is prohibited. Please notify the sender immediately by e-mail and then delete this message. Ce message est confidentiel. Si vous n'etes pas le destinataire designe de ce message ou une personne autorisee a l'utiliser, toute distribution, copie, publication ou usage a quelques fins que ce soit des informations contenues dans ce message sont interdits. Merci d'informer immediatement l'expediteur par messagerie electronique et d'ensuite detruire ce message. --

1 0

Windows version not starting when Run
by Dayo Akande 31 Aug '11

31 Aug '11

The main thing that I'm seeing as the error is: "Could not load DH parameters from stunnel.pem" Below is the entire log file, I am so stumped here. I appreciate any help. No limit detected for the number of clients make_sockets: s_socket#1: FD=272 allocated (blocking mode) make_sockets: s_socket#2: FD=276 allocated (blocking mode) make_sockets: s_accept: FD=292 allocated (non-blocking mode) stunnel 4.42 on x86-pc-mingw32-gnu platform Compiled/running with OpenSSL 1.0.0d 8 Feb 2011 Threading:WIN32 SSL:ENGINE Auth:none Sockets:SELECT,IPv6 Reading configuration from file stunnel.conf Snagged 64 random bytes from C:/.rnd Wrote 1024 new random bytes to C:/.rnd PRNG seeded successfully Initializing SSL context for service pop3s Certificate: stunnel.pem Certificate loaded Key file: stunnel.pem Private key loaded Could not load DH parameters from stunnel.pem Using hardcoded DH parameters DH initialized with 2048-bit key ECDH initialized with curve prime256v1 SSL options set: 0x01180004 SSL context initialized Initializing SSL context for service imaps Certificate: stunnel.pem Certificate loaded Key file: stunnel.pem Private key loaded Could not load DH parameters from stunnel.pem Using hardcoded DH parameters DH initialized with 2048-bit key ECDH initialized with curve prime256v1 SSL options set: 0x01180004 SSL context initialized Line 91: "socket = l:TCP_NODELAY=1 ": Specified option name is not valid here str_stats: 152 block(s), 11942 byte(s) Server is down

2 2

Re: [stunnel-users] CRL
by Uldis Biks 31 Aug '11

31 Aug '11

1 0

CRL
by Uldis Biks 31 Aug '11

31 Aug '11

2 2

stunnel : binding in ipv6+ipv4 : problem
by Guylhem Aznar 27 Aug '11

27 Aug '11

Hello I have a problem with stunnel : I just don't know how to specify 2 different port forwarding, one for all ipv4 connections to port 443, the other for all ipv6 connections. Either one seem to work, but I can't have both at the same time. In my /etc/hosts : 127.0.0.1 localhost ::1 localhost6 0.0.0.0 listenall4 :: listenall6 In my stunnel.conf: [sslh] accept = listenall4:443 connect = 127.0.0.1:444 TIMEOUTclose = 0 [ssl6] accept = listenall6:443 connect = 6.guylhem.org:80 TIMEOUTclose = 0 I have read that linux can block ipv6 sockets if the ipv4 socket is created first, but here the order doesn't change anything. I though that stunnel was ipv6 capable, but apparently it doesn't play well with ipv4 on the same port. So I tried to remove one of the listenall : the listenall4 is important, but listenall6 is not. Yet giving a AAAA only host like 6.guylhem.org does not help - even if it goes before the listenall4. So I'm stuck. Has anyone patched stunnel for such a situation? Guylhem

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FW: Mysql doesnt run with stunnel
by Freeh Sophia 26 Aug '11

26 Aug '11

Craig Retief <stunnel <at> rsw.co.za> writes: > > I see that on your server you have specified your config for mysqls like > this: > Hi Craig, That fixed it for me. Thanks! Freeh Sophia Marketing GmbH Emanuelstr. 3, 10317 Berlin Deutschland Telefon: +49 (33) 5310967 Email: freehsophia(a)gmail.com Site: http://flug.airego.de/

1 0

stunnel4 tcp_nodelay
by Madhu R 21 Aug '11

21 Aug '11

Hi, We are using stunnel in order to tunnel http proxy traffic. Is it better in this case to turn on Nagle's algo? I have tried to set socket=l:TCP_NODELAY=0 and socket=r:TCP_NODELAY=0 in the global config, but when I look at debug log it keeps saying option tcp_nodelay is set on local and remote socket. Is this a bug, or is there a different way of turning off tcp_nodelay (since I understand this is on by default now) Regds

1 0

Security issue in 4.4X effect older version?
by Richard L. Houston 19 Aug '11

19 Aug '11

Hi All, Sorry if this has been asked and answered. Saw the security warning about Stunnel 4.40 and 4.41 at http://www.securityfocus.com/bid/49254/info Are older version vulnerable as well or just those two specific versions? Specificity in the 4.2X series? Thanks for your help. +------------------------------------+ Best regards, -Richard Houston -R.L.H. Consulting -E-Mail rhouston(a)rlhc.net -WWW http://www.rlhc.net -Blog http://www.rlhc.net/blog/ -Twitter http://www.twitter.com/rlhc/

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centos 6 - stunnel 4.42 unusable (libssl trap divide error) in FIPS mode (default)
by draeath 19 Aug '11

19 Aug '11

I just finished building and configuring stunnel 4.42 on my x86_64 CentOS6 box. It appears to run, but not long into the SSL connection stunnel dies. Log info below. This only happens if I do NOT specify --disable-fips during ./configure (as it enables FIPS by default). I assume this is because FIPS compliancy requires a key to have a passphrase, which my key does not have? [root@host stunnel]# tail -f /var/log/stunnel.log /var/log/messages ==> /var/log/stunnel.log <== 2011.08.19 16:27:36 LOG7[31681:139656510936832]: Option TCP_NODELAY set on local socket 2011.08.19 16:27:36 LOG5[31681:139656510936832]: Service ntop accepted connection from 12.117.176.190:13258 2011.08.19 16:27:36 LOG7[31681:139656510936832]: SSL state (accept): before/accept initialization 2011.08.19 16:27:36 LOG7[31681:139656510936832]: SSL state (accept): SSLv3 read client hello A 2011.08.19 16:27:36 LOG7[31681:139656510936832]: SSL state (accept): SSLv3 write server hello A 2011.08.19 16:27:36 LOG7[31681:139656510936832]: SSL state (accept): SSLv3 write certificate A 2011.08.19 16:27:36 LOG7[31681:139656510936832]: SSL state (accept): SSLv3 write key exchange A 2011.08.19 16:27:36 LOG7[31681:139656510936832]: SSL state (accept): SSLv3 write server done A 2011.08.19 16:27:36 LOG7[31681:139656510936832]: SSL state (accept): SSLv3 flush data 2011.08.19 16:27:37 LOG7[31681:139656510936832]: SSL state (accept): SSLv3 read client key exchange A ==> /var/log/messages <== Aug 19 16:27:24 host stunnel: LOG5[31680:139656510941120]: FIPS mode enabled Aug 19 16:27:24 host stunnel: LOG6[31680:139656510941120]: Initializing SSL context for service ntop Aug 19 16:27:24 host stunnel: LOG4[31680:139656510941120]: Insecure file permissions on /usr/local/etc/stunnel/stunnel.pem Aug 19 16:27:24 host stunnel: LOG6[31680:139656510941120]: SSL context initialized Aug 19 16:27:24 host stunnel: LOG5[31680:139656510941120]: Configuration successful Aug 19 16:27:36 host stunnel: LOG5[31681:139656510936832]: Service ntop accepted connection from 12.117.176.190:13257 Aug 19 16:27:36 host stunnel: LOG3[31681:139656510936832]: SSL_accept: 1408F10B: error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number Aug 19 16:27:36 host stunnel: LOG5[31681:139656510936832]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket Aug 19 16:27:36 host stunnel: LOG5[31681:139656510936832]: Service ntop accepted connection from 12.117.176.190:13258 Aug 19 16:27:37 host kernel: stunnel[31724] trap divide error ip:7f044fd0d3d1 sp:7f0450b98a40 error:0 in libssl.so.1.0.0[7f044fce2000+53000]

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Tr:SIP encryption with stunnel
by margot.basa 19 Aug '11

19 Aug '11

Hello all, Can someone give me information about SIP encryption with stunnel please ? Is it possible to transform a SIP message on TCP into a SIP TLS message with stunnel ? Thank you very much for your help, Regards > Message du 16/08/11 11:38 > De : "margot.basa" > A : stunnel-users(a)stunnel.org > Copie à : > Objet : SIP encryption with stunnel > > Hello all, I would like to know if stunnel is able to encrypt a SIP message (UDP or TCP => TLS...) For example: Terminal A can send/receive SIP messages on transport layer UDP or TCP but not TLS. Server B can send/receive SIP messages only in TLS. If terminal A sends a SIP REGISTER message to Server B, does stunnel is able to intercept the message and transform it ? port 5060 => port 5061 TCP => TLS sip uri => sips uri Do you think it's possible with stunnel ? Thank you very much for your input. Regards > > Une messagerie gratuite, garantie à vie et des services en plus, ça vous tente ? Je crée ma boîte mail www.laposte.net

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When X-FORWARDED-FOR for Stunnel ?
by Elodie BOSSIER 19 Aug '11

19 Aug '11

Greetings, Why you don't implement X-FORWARDED-FOR into stunnel ? I have found this patch : http://haproxy.1wt.eu/download/patches/stunnel-4.32-xforwarded-for.diff but this on is to much old, i'm with stunnel 4.41 and i can't go to 4.32 because i need SNI, implemented since 4.38 I have attempt to modify the patch to match with the current version, in begining it's ok but not after, all line code have changed and i'm not developer. X-FORWARDED-FOR is very important and exist on mostly all the frontend web and usuable by all the web server. Someone told me to switch to Nginx because X-FORWARDED-FOR don't exist in Stunnel ... I would like stay on Stunnel because it's only a light tunnel. The patch have only 219 lines, could you help me please to addapt it to the version 4.41 and/or add this feature into Stunnel please ? This is the "manual" to apply the patch : http://www.buro9.com/blog/2009/12/07/installing-haproxy-load-balance-http-a… Just need to add "xforwardedfor=yes" into your config file and should be OK. With this feature, I won't have need to "play" with this (censured) of transparent = source, iptables rules, tcpdump and root exec ... Thanks so much ... Elodie.

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stunnel 4.42 released
by Michal Trojnara 18 Aug '11

18 Aug '11

Dear Users, I have released version 4.42 of stunnel. This is a security bugfix release. Upgrade is highly recommended! The ChangeLog entry: Version 4.42, 2011.08.18, urgency: HIGH: * New features - New verify level 0 to request and ignore peer certificate. This feature is useful with the new Windows GUI menu to save cached peer certificate chains, as SSL client certificates are not sent by default. - Manual page has been updated. - Removed support for changing Windows Service name with "service" option. * Bugfixes - Fixed a heap corruption vulnerability in versions 4.40 and 4.41. It may possibly be leveraged to perform DoS or remote code execution attacks. - The -quiet commandline option was applied to *all* message boxes. - Silent install (/S option) no longer attempts to create stunnel.pem. Home page: http://www.stunnel.org/ Download: ftp://ftp.stunnel.org/stunnel/ SHA-256 hash for stunnel-4.42.tar.gz: d33c407bfc4f58070e818081bd082c38f91cab7691ccbb794da63143c535de3b Best regards, Mike

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stunnel transparent mode
by Julian D. Seifert 18 Aug '11

18 Aug '11

Hi List, I have a little issue trying to get stunnel running for encapsulating an existing service with SSL. We are running a really old legacy ircd service and would like to provide SSL for the users without having to actually hack that into the really old code base. (Yes we could just use another more modern software but let's just say there are "political" reasons as to why this is not an option) For an ircd we need transparency as in "the ircd should think the connection is not coming from localhost") ANYWAY... so I am working with stunnel 4.39 right now. First a question if I understand it correctly how stunnel will work. I have the ircd running on IP1:6667. I created a service section like this. [ircd] accept = 7000 connect = 6667 transparent = source (And applied the iptables/routing related stuff mentioned in the documentation) Should this already work? Will stunnel "manipulate" packets so that the IRCD "sees" connections from the Peers IP's? And will the Answers the ircd sends to the peers get "intercepted" by stunnel so it can "remanipulate" the answers into the SSL connection? If I try it like I get "local_bind (original port): Cannot assign requested address (99) stunnel" and clients get connection abort. Or is this what "transparent = both" is for? With 4.39 I had an issue trying to use "transparent = both". Stunnel always displayed an error message saying "Each service must define two endpoints" (more or less). I got it to compile by commenting out the one line in options.c causing the error... #### snip #### } else { /* standalone mode checks */ if((unsigned int)section->option.accept + (unsigned int)section->option.program + (unsigned int)section->option.remote + (unsigned int)section->option.sni #ifndef USE_WIN32 + (unsigned int)section->option.transparent_dst #endif /* USE_WIN32 */ !=2) { section_error(last_line, section->servname, "Each service must define two endpoints"); return 0; } ### snap ### Commented out the line within the ifndef. Anyway... I hope somebody can clarify for me how stunnel works and what transparent mode is the one I need. (I want to transparently provide the ircd service with connections so it seems they are directly from the peers and not from stunnel(localhost)) regards, Julian Seifert -- I hate mondays...

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[[email protected]: Bug#637932: stunnel4: segfault if certificate file cannot be read during verification]
by Rodrigo Gallardo 17 Aug '11

17 Aug '11

----- Forwarded message from Sebastian Leske <Sebastian.Leske(a)sleske.name> ----- Date: Mon, 15 Aug 2011 21:21:05 +0200 Package: stunnel4 Version: 3:4.40-1 Severity: normal I use certificate verification with stunnel4 (verify=2 in stunnel.conf). I accidentally changed the access rights of a PEM file required for verification to be unreadable. As a consequence, stunnel4 incorrectly reports "Verification error: self signed certificateVerification error: self signed certificate" (the cert in question is not self-signed), then segfaults. With stunnel4 version 4.29-1_i386, this does not occur: stunnel4 correctly reports that it cannot access the PEM file. Log and backtrace (generated with setting foreground=yes in stunnel.conf): Starting program: /usr/bin/stunnel4 /etc/stunnel/stunnel.conf [Thread debugging using libthread_db enabled] 2011.08.15 21:16:54 LOG5[9584:3082946768]: stunnel 4.40 on i486-pc-linux-gnu platform 2011.08.15 21:16:54 LOG5[9584:3082946768]: Compiled/running with OpenSSL 1.0.0d 8 Feb 2011 2011.08.15 21:16:54 LOG5[9584:3082946768]: Threading:PTHREAD SSL:ENGINE Auth:LIBWRAP Sockets:POLL,IPv6 2011.08.15 21:16:54 LOG5[9584:3082946768]: Reading configuration from file /etc/stunnel/stunnel.conf 2011.08.15 21:16:54 LOG6[9584:3082946768]: Compression enabled using zlib method 2011.08.15 21:16:54 LOG6[9584:3082946768]: Initializing SSL context for service pop3sl 2011.08.15 21:16:54 LOG6[9584:3082946768]: SSL context initialized 2011.08.15 21:16:54 LOG6[9584:3082946768]: Initializing SSL context for service https 2011.08.15 21:16:54 LOG6[9584:3082946768]: SSL context initialized 2011.08.15 21:16:54 LOG6[9584:3082946768]: Initializing SSL context for service ssmtp 2011.08.15 21:16:54 LOG6[9584:3082946768]: SSL context initialized 2011.08.15 21:16:54 LOG5[9584:3082946768]: Configuration successful [New Thread 0xb7fdfb70 (LWP 9593)] 2011.08.15 21:16:57 LOG5[9584:3086875504]: Service pop3sl accepted connection from 127.0.0.1:60903 2011.08.15 21:16:57 LOG6[9584:3086875504]: connect_blocking: connecting 213.187.93.221:995 2011.08.15 21:16:57 LOG5[9584:3086875504]: connect_blocking: connected 213.187.93.221:995 2011.08.15 21:16:57 LOG5[9584:3086875504]: Service pop3sl connected remote server from 192.168.1.101:39914 2011.08.15 21:16:57 LOG4[9584:3086875504]: CERT: Verification error: self signed certificate in certificate chain 2011.08.15 21:16:57 LOG4[9584:3086875504]: Certificate check failed: depth=2, /C=BE/O=GlobalSign nv-sa/OU=Root CA/CN=GlobalSign Root CA 2011.08.15 21:16:57 LOG3[9584:3086875504]: error queue: 14090086: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0xb7fdfb70 (LWP 9593)] 0xb7ca2119 in ?? () from /lib/i386-linux-gnu/i686/cmov/libc.so.6 (gdb) bt #0 0xb7ca2119 in ?? () from /lib/i386-linux-gnu/i686/cmov/libc.so.6 #1 0xb7ca3c1b in calloc () from /lib/i386-linux-gnu/i686/cmov/libc.so.6 #2 0x0804cd20 in ?? () #3 0x080574bf in ?? () #4 0x08057529 in ?? () #5 0x08058129 in ?? () #6 0x0804d945 in ?? () #7 0x0804e79b in ?? () #8 0x0804fafe in ?? () #9 0xb7f98c39 in start_thread () from /lib/i386-linux-gnu/i686/cmov/libpthread.so.0 #10 0xb7d0196e in clone () from /lib/i386-linux-gnu/i686/cmov/libc.so.6 (gdb) -- System Information: Debian Release: squeeze/sid APT prefers testing APT policy: (500, 'testing'), (500, 'stable') Architecture: i386 (i686) Kernel: Linux 3.0.0-1-686-pae (SMP w/1 CPU core) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash Versions of packages stunnel4 depends on: ii adduser 3.110 add and remove users and groups ii libc6 2.13-10 Embedded GNU C Library: Shared lib ii libssl1.0.0 1.0.0d-3 SSL shared libraries ii libwrap0 7.6.q-16 Wietse Venema's TCP wrappers libra ii netbase 4.34 Basic TCP/IP networking system ii openssl 1.0.0d-3 Secure Socket Layer (SSL) binary a ii perl-modules 5.12.4-2 Core Perl modules stunnel4 recommends no packages. Versions of packages stunnel4 suggests: pn logcheck-database <none> (no description available) -- no debconf information ----- End forwarded message ----- -- Rodrigo Gallardo

2 1

Sending "LOGOUT" when using StartTLS offloading?
by Markus Borst 17 Aug '11

17 Aug '11

I have to cope with a very unusual imap server behavior, but maybe stunnel can help me: Can stunnel send an imap command ("XX LOGOUT"), just before closing the tcp session? Setup: I use stunnel for SSL/TLS offloading, both via extra port (993) and StartTLS emulation (143). Our imap server (Mercury) has a very peculiar feature: If a tcp connection is closed without properly closing the imap session first (LOGOUT), the server discards certain attributes, specifically, it "forgets" all deletions since last logout. Since many imap clients just tear down the connection in certain cases (for example Thunderbird going into offline mode, many webmailers or stunnel reaching it's "TIMEOUTidle"), this causes mails to be undeleted. We currently use an older version of the mailserver, since only the newest is broken. Needless to say, this does not go well with our users. A fixed version of the imap server may never come, so, until we can switch all users to a new mail system: Is it possible to use stunnel to send an additional imap command before closing the tcp connection (something like "999 LOGOUT")? The command should be sent no matter why the connection is closed, either because the client closed it, a timeout is reached or stunnel is unloaded. If the connection is already cleanly logged out, this doesn't matter, in all other situations it would help. Would it be possible to send such a command, or could this be added as a new feature? Greetings Markus Borst -- ==== Achtung! Umzug: neuer Raum: ==== TU Darmstadt Hochschulrechenzentrum (HRZ) Markus Borst S4/14/2.4.06 Adresse: Mornewegstr. 30 64293 Darmstadt Tel.: 06151/16-2056 Email: M.Borst(a)hrz.tu-darmstadt.de

2 1

SIP encryption with stunnel
by margot.basa 16 Aug '11

16 Aug '11

Hello all, I would like to know if stunnel is able to encrypt a SIP message (UDP or TCP => TLS...) For example: Terminal A can send/receive SIP messages on transport layer UDP or TCP but not TLS. Server B can send/receive SIP messages only in TLS. If terminal A sends a SIP REGISTER message to Server B, does stunnel is able to intercept the message and transform it ? port 5060 => port 5061 TCP => TLS sip uri => sips uri Do you think it's possible with stunnel ? Thank you very much for your input. Regards Une messagerie gratuite, garantie à vie et des services en plus, ça vous tente ? Je crée ma boîte mail www.laposte.net

1 0

Stunnel and CryptoAPI
by ratmahat＠hush.ai 15 Aug '11

15 Aug '11

Hello everyone! I have an interesting question, which i didn't find any answer to after several searches. 1. What if I want to enable client verification with client certificate provided by smart card? Is it possible? 2. Does stunnel has the capability to access Windows certificate store in order to verificate the client certificate with the CA in the store? If anyone ever dealt with this, I'd really appreciate this. Thanks, Rat.

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Odd stunnel problem
by Tristan Schmelcher 09 Aug '11

09 Aug '11

My company uses stunnel on a telecom product and we have run into a strange problem. One of our customers sees an issue every couple weeks where the stunnel process becomes busted. Attempts to establish a connection through stunnel to any host hang indefinitely. Interface stats indicate that stunnel sends and receives a flurry of packets--as if a TLS connection was successfully established--but the local plaintext socket connection to stunnel never passes data. For example, if attempting to run telnet over stunnel, the telnet client just sits there and doesn't write anything to the terminal. During this time the network is otherwise functioning fine. Unfortunately nothing is logged by stunnel when this happens and we haven't been able to reproduce the problem in a controlled environment. Does anyone have any ideas what might be happening? We currently use stunnel 4.35 with debug = warning, sslVersion = TLSv1, and verify = 2.

2 2

stunnel for android
by dddfr 09 Aug '11

09 Aug '11

Hi, I want to use stunnel server in Android Phone ,I don't know how to use it,can you tell me? Thanks! 2011-08-10 dddfr

1 0

doubts with stunnel.conf
by Gabriel Monnerat 09 Aug '11

09 Aug '11

Hello, I am noob in stunnel and I trying configure my environment but I have one problem. My stunnel.conf is: foreground = yes output = /srv/slapgrid/slappart1/var/log/stunnel.log pid = /srv/slapgrid/slappart1/var/run/stunnel.pid syslog = no debug = 7 foreground = yes delay = yes client = yes socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 key = /srv/slapgrid/slappart1/srv/ca/private/mykey.key cert = /srv/slapgrid/slappart1/srv/ca/certs/mycert.crt [varnish_SOFTINST-51] accept = 10.0.235.44:26012 connect = [2a01:e34:ec03:*:*:*:*:*]:15000 In the stunnel compilation the option "--enable-ipv6" was used. And ipv6 address is one zope server to connect using https I have this traceback: 2011.08.09 00:19:51 LOG7[12724:140272018274048]: local socket: FD=7 allocated (non-blocking mode) 2011.08.09 00:19:51 LOG7[12724:140272018274048]: Service varnish_SOFTINST-51 accepted FD=7 from 10.0.235.44:39673 2011.08.09 00:19:51 LOG7[12724:140272018409232]: Service varnish_SOFTINST-51 started 2011.08.09 00:19:51 LOG7[12724:140272018409232]: Option TCP_NODELAY set on local socket 2011.08.09 00:19:51 LOG5[12724:140272018409232]: Service varnish_SOFTINST-51 accepted connection from 10.0.235.44:39673 2011.08.09 00:19:59 LOG3[12724:140272018409232]: Error resolving '[2a01:e34:ec03:*:*:*:*:*]': Neither nodename nor servname known (EAI_NONAME) 2011.08.09 00:19:59 LOG3[12724:140272018409232]: No host resolved 2011.08.09 00:19:59 LOG5[12724:140272018409232]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2011.08.09 00:19:59 LOG7[12724:140272018409232]: Service varnish_SOFTINST-51 finished (0 left) 2011.08.09 00:19:59 LOG7[12724:140272018409232]: str_stats: 0 block(s), 0 byte(s) 2011.08.09 00:20:09 LOG7[12724:140272018274048]: local socket: FD=7 allocated (non-blocking mode) 2011.08.09 00:20:09 LOG7[12724:140272018274048]: Service varnish_SOFTINST-51 accepted FD=7 from 10.0.235.44:39675 2011.08.09 00:20:09 LOG7[12724:140272018409232]: Service varnish_SOFTINST-51 started 2011.08.09 00:20:09 LOG7[12724:140272018409232]: Option TCP_NODELAY set on local socket 2011.08.09 00:20:09 LOG5[12724:140272018409232]: Service varnish_SOFTINST-51 accepted connection from 10.0.235.44:39675 2011.08.09 00:20:14 LOG7[12724:140272018274048]: Dispatching signals from the signal pipe 2011.08.09 00:20:14 LOG5[12724:140272018274048]: Received signal 15; terminating 2011.08.09 00:20:14 LOG7[12724:140272018274048]: str_stats: 0 block(s), 0 byte(s) 2011.08.09 00:20:14 LOG7[12724:140272018274048]: removing pid file /srv/slapgrid/slappart1/var/run/stunnel.pid Please, someone can help me? maybe I am doing stupid things.. thanks in advance -- Gabriel M. Monnerat

2 3

Stunnel 4.41 dies after a while
by René Plattner 08 Aug '11

08 Aug '11

Hi, I have compiled version 4.41 with xforwarded-for patch successfully for our webmail system (Stunnel <-> Haproxy <-> Horde Webmail). After a while the stunnel daemon dies and following message appears in log: Aug 8 12:05:06 vlb2 [local3.err] stunnel: LOG3[3231:3085343632]: SSL_accept: 140760FC: error:140760FC:SSL routines: SSL23_GET_CLIENT_HELLO:unknown protocol Any ideas/suggestions? OS: Centos 5.5 openssl: 0.9.8e-12.el5_5.7 Configuration: ; Protocol version (all, SSLv2, SSLv3, TLSv1) sslVersion = all ; Disable SSLv2 options = NO_SSLv2 ; List of allowed Ciphers ciphers = ALL:!ADH:!LOW:!EXP:!MD5:@STRENGTH ; Disable FIPS fips = no ; Some security enhancements for UNIX systems - comment them out on Win32 setuid = nobody setgid = nobody chroot = /usr/local/var/lib/stunnel/ ; PID is created inside chroot jail pid = /stunnel-webmail.pid ; Some performance tunings socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ; Option for Dummy MSIE TIMEOUTclose=0 ; Option for errorness SSL implementation options = DONT_INSERT_EMPTY_FRAGMENTS ; Some debugging stuff useful for troubleshooting debug = local3.4 ; Run as Daemon foreground = no ; Service-level configuration [https] cert = z1.pem accept = ip1:443 connect = p1 xforwardedfor = yes [https] cert = z2.pem accept = ip2:443 connect = p2 xforwardedfor = yes [wmt] cert = z3.pem accept = ip3:443 connect = p3 xforwardedfor = yes regards René Plattner

1 0

Tray icon options
by Sebastian Rose-Indorf 08 Aug '11

08 Aug '11

Hello, many thanks for the new Stunnel versions! I have installed 4.42b3 manually (Vista SP2 64 bit). The tray icon options "Edit stunnel.conf" and "Reload stunnel.conf" do not find the conf file, and the option "Manual" has no effect. At program start Stunnel finds the Conf file without problems (start link: "drive1/path1/stunnel.exe drive2/path2/stunnel.conf"). Greetings seb

1 0

Re: [stunnel-users] webmail compose page get expire and logout
by jayesh.shinde 08 Aug '11

08 Aug '11

Hi Ludolf , Sorry for my previous typing mistake , There is *no* firewall rules between any of my 3 servers My problem is when I open webmail with https:// and compose any email and click on send button then page is getting expire and I am getting logout. Kindly note that my other webmail pages with https:// are working properly. Where as with http:// the compose email and send works properly without any problem. That is if I open the webmail vai stunnel https config then only problem comes. So I am searching solution and config option with the same. Let me know if any config info require from my end. I am checking out with the option which you have suggested and will reply you shortly. Regards Jayesh Shinde On 08/08/2011 01:02 PM, Ludolf Holzheid wrote: > On Mon, 2011-08-08 12:30:03 +0530, jayesh.shinde wrote: >> > >> > [..] >> > >> > I checked by defining the TIMEOUTs but I am not able to figure out why >> > the page is getting expire and I am getting logout ? >> > There is firewall rule between any servers. > I didn't fully understand your problem, but if your secured tunnel > crosses a stateful firewall (e.g. a NAT router), you might try to > switch on TCP keepalive: > > socket = l:SO_KEEPALIVE=1 > > You might also play with the TCP_KEEP* socket options. > > HTH, > > Ludolf > > -- --------------------------------------------------------------- > Ludolf Holzheid Tel: +49 621 339960 Bihl+Wiedemann GmbH Fax: +49 621 > 3392239 Floßwörthstraße 41 e-mail: lholzheid(a)bihl-wiedemann.de D-68199 > Mannheim, Germany > ---------------------------------------------------------------

1 1

webmail compose page get expire and logout
by jayesh.shinde 08 Aug '11

08 Aug '11

Dear All , I am trying to setup a load balancing under webmail on my test servers. Here is my setup details :-- Total server are 3 servers. i.e ( 2 backend webmail server and 1 front server ) On one server I have installed haproxy-1.4.15.tar.gz + stunnel-4.41.tar.gz with http:// and https:// Another two servers are installed with squirrelmail . my problem:-- ========== 1) When I access the webmail by https://webmail.domain.com and compose any email and click on send button , the page is getting expire and I am getting log out from webmail. In Firefox there is no error on browser , where as in internet explorer I am getting below error with popup window :-- *Error Popup* :-- ============ "do you want to view only the webpage content that was deliver securely. This webpage contain the content that will not be delivered using the secure HTTPS connection, which could compromise the security of entire webpage." Where as if I check with http://webmail.domain.com , then the mail compose and send work properly. Here is the stunnel.conf :-- =================== [root@jayesh ~]# cat /etc/stunnel/stunnel.conf cert=/opt/ssl/ssl.key/mail_domain_com.crt key=/opt/ssl/ssl.key/domain.key setuid=stunnel setgid=stunnel pid=/var/run/stunnel/stunnel.pid output = /var/log/stunnel.log debug = 7 socket=l:TCP_NODELAY=1 socket=r:TCP_NODELAY=1 [https] accept=192.168.30.200:443 connect=192.168.30.200:81 TIMEOUTclose = 0 session = 600 TIMEOUTbusy = 600 TIMEOUTclose = 300 TIMEOUTconnect = 600 I checked by defining the TIMEOUTs but I am not able to figure out why the page is getting expire and I am getting logout ? There is firewall rule between any servers. Please suggest me and guide on this issue. I am stuck here. Regards Jayesh Shinde

1 0

anyone got a port for android?
by Jason Haar 05 Aug '11

05 Aug '11

Hi there Exchange email doesn't work on Android for us because we have a requirement for using client certs to protect the ActiveSync over HTTPS transactions. If I had stunnel, I could sync with localhost and stunnel could do the client cert-foo.... So does anyone know of a working stunnel implementation for Android (or even something else that does the same job?) Thanks -- Cheers Jason Haar Information Security Manager, Trimble Navigation Ltd. Phone: +64 3 9635 377 Fax: +64 3 9635 417 PGP Fingerprint: 7A2E 0407 C9A6 CAF6 2B9F 8422 C063 5EBB FE1D 66D1

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FreeBSD upgrading to 4.41 (Dispatching signals from the signal pipe)
by Nicolas de Bari Embriz Garcia Rojas 04 Aug '11

04 Aug '11

Hi, I just upgrade stunner on a FreeBSD server from 4.35 to 4.41 using the ports, I restarted the server and notice that stunnel was not listen to any port, I had to manually restart it so it could work again. I increased the debug to 7 and got this when booting: 2011.08.04 17:44:58 LOG7[1123:675287360]: Dispatching signals from the signal pipe 2011.08.04 17:44:58 LOG5[1123:675287360]: Received signal 15; terminating 2011.08.04 17:44:58 LOG7[1123:675287360]: str_stats: 0 block(s), 0 byte(s) 2011.08.04 17:44:58 LOG7[1123:675287360]: removing pid file /stunnel.pid 2011.08.04 17:45:29 LOG7[682:675287360]: No limit detected for the number of clients 2011.08.04 17:45:29 LOG7[682:675287360]: signal_pipe: FD=3 allocated (non-blocking mode) 2011.08.04 17:45:29 LOG7[682:675287360]: signal_pipe: FD=4 allocated (non-blocking mode) 2011.08.04 17:45:29 LOG5[682:675287360]: stunnel 4.41 on i386-portbld-freebsd8.2 platform 2011.08.04 17:45:29 LOG5[682:675287360]: Compiled/running with OpenSSL 1.0.0d 8 Feb 2011 2011.08.04 17:45:29 LOG5[682:675287360]: Threading:PTHREAD SSL:ENGINE Auth:LIBWRAP Sockets:POLL,IPv4 2011.08.04 17:45:29 LOG5[682:675287360]: Reading configuration from file /usr/local/etc/stunnel/stunnel.conf 2011.08.04 17:45:29 LOG7[682:675287360]: PRNG seeded successfully 2011.08.04 17:45:29 LOG6[682:675287360]: Initializing SSL context for service ssmtp 2011.08.04 17:45:29 LOG7[682:675287360]: Certificate: /usr/local/etc/stunnel/smtp.inbox.pem 2011.08.04 17:45:29 LOG7[682:675287360]: Certificate loaded 2011.08.04 17:45:29 LOG7[682:675287360]: Key file: /usr/local/etc/stunnel/smtp.inbox.pem 2011.08.04 17:45:29 LOG7[682:675287360]: Private key loaded 2011.08.04 17:45:29 LOG7[682:675287360]: Could not load DH parameters from /usr/local/etc/stunnel/smtp.inbox.pem 2011.08.04 17:45:29 LOG7[682:675287360]: Using hardcoded DH parameters 2011.08.04 17:45:29 LOG7[682:675287360]: DH initialized with 2048-bit key 2011.08.04 17:45:29 LOG7[682:675287360]: ECDH initialized with curve prime256v1 2011.08.04 17:45:29 LOG7[682:675287360]: SSL options set: 0x00000004 2011.08.04 17:45:29 LOG6[682:675287360]: SSL context initialized 2011.08.04 17:45:29 LOG6[682:675287360]: Initializing SSL context for service ssmtp2 2011.08.04 17:45:29 LOG7[682:675287360]: Certificate: /usr/local/etc/stunnel/smtp.inbox.pem 2011.08.04 17:45:29 LOG7[682:675287360]: Certificate loaded 2011.08.04 17:45:29 LOG7[682:675287360]: Key file: /usr/local/etc/stunnel/smtp.inbox.pem 2011.08.04 17:45:29 LOG7[682:675287360]: Private key loaded 2011.08.04 17:45:29 LOG7[682:675287360]: Could not load DH parameters from /usr/local/etc/stunnel/smtp.inbox.pem 2011.08.04 17:45:29 LOG7[682:675287360]: Using hardcoded DH parameters 2011.08.04 17:45:29 LOG7[682:675287360]: DH initialized with 2048-bit key 2011.08.04 17:45:29 LOG7[682:675287360]: ECDH initialized with curve prime256v1 2011.08.04 17:45:29 LOG7[682:675287360]: SSL options set: 0x00000004 2011.08.04 17:45:29 LOG6[682:675287360]: SSL context initialized 2011.08.04 17:45:29 LOG5[682:675287360]: Configuration successful 2011.08.04 17:45:29 LOG7[682:675287360]: libwrap_init: FD=5 allocated (blocking mode) 2011.08.04 17:45:29 LOG7[682:675287360]: libwrap_init: FD=6 allocated (blocking mode) 2011.08.04 17:45:29 LOG7[682:675287360]: libwrap_init: FD=6 allocated (blocking mode) 2011.08.04 17:45:29 LOG7[682:675287360]: libwrap_init: FD=7 allocated (blocking mode) 2011.08.04 17:45:29 LOG7[682:675287360]: libwrap_init: FD=7 allocated (blocking mode) 2011.08.04 17:45:29 LOG7[682:675287360]: libwrap_init: FD=8 allocated (blocking mode) 2011.08.04 17:45:29 LOG7[682:675287360]: libwrap_init: FD=8 allocated (blocking mode) 2011.08.04 17:45:29 LOG7[682:675287360]: libwrap_init: FD=9 allocated (blocking mode) 2011.08.04 17:45:29 LOG7[682:675287360]: libwrap_init: FD=9 allocated (blocking mode) 2011.08.04 17:45:29 LOG7[682:675287360]: libwrap_init: FD=10 allocated (blocking mode) 2011.08.04 17:45:29 LOG7[682:675287360]: accept socket: FD=11 allocated (non-blocking mode) 2011.08.04 17:45:29 LOG7[682:675287360]: Option SO_REUSEADDR set on accept socket 2011.08.04 17:45:29 LOG7[682:675287360]: Service ssmtp bound to 0.0.0.0:465 2011.08.04 17:45:29 LOG7[682:675287360]: Service ssmtp opened FD=11 2011.08.04 17:45:29 LOG7[682:675287360]: accept socket: FD=12 allocated (non-blocking mode) 2011.08.04 17:45:29 LOG7[682:675287360]: Option SO_REUSEADDR set on accept socket 2011.08.04 17:45:29 LOG7[682:675287360]: Service ssmtp2 bound to 0.0.0.0:587 2011.08.04 17:45:29 LOG7[682:675287360]: Service ssmtp2 opened FD=12 2011.08.04 17:45:29 LOG7[688:675287360]: Created pid file /stunnel.pid 2011.08.04 17:45:42 LOG7[688:675287360]: Dispatching signals from the signal pipe 2011.08.04 17:45:42 LOG7[688:675287360]: Service ssmtp closed FD=11 2011.08.04 17:45:42 LOG7[688:675287360]: Service ssmtp2 closed FD=12 This is my conf: cert = /usr/local/etc/stunnel/smtp.inbox.pem chroot = /usr/local/var/stunnel setuid = stunnel setgid = stunnel pid = /stunnel.pid debug = 7 output = /stunnel.log client = no foreground = no ; Some performance tuning socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 [ssmtp] accept = 465 connect = 25 [ssmtp2] accept = 587 connect = 25 Any ideas of what could it be wrong? the last 2 lines of the boot log tell me that the ports i specify are been closed but why? 2011.08.04 17:45:42 LOG7[688:675287360]: Dispatching signals from the signal pipe 2011.08.04 17:45:42 LOG7[688:675287360]: Service ssmtp closed FD=11 2011.08.04 17:45:42 LOG7[688:675287360]: Service ssmtp2 closed FD=12 thanks in advance. regards

2 1

(no subject)
by Nicolas de Bari Embriz Garcia Rojas 04 Aug '11

04 Aug '11

1 0

STunnel NTLM Proxy problem
by Subhash Sharma 04 Aug '11

04 Aug '11

Has anyone use Stunnel to works with NTLM proxy? I am using Stunnel 4.35 on window It works fine straught and basic proxy but fails to use NTLM proxy. My config for NTLM is like this ---------------- configuration --------------------- [https] accept = someport connect = proxy:proxy_port protocol = connect protocolAuthentication = NTLM protocolHost = dest:dest_port protocolUsername = domain\username protocolPassword = password ----------------------------------------------------- I checked the traffic using the win shark -----------------win shark for stunnel ----------------- CONNECT dest:destport HTTP/1.1 , NTLMSSP_AUTH, User: \domain\username Proxy-Authorization: NTLM some long string NTLM Secure Service Provider NTLMSSP identifier: NTLMSSP NTLM Message Type: NTLMSSP_AUTH (0x00000003) Lan Manager Response: Empty NTLM Response: 951842e95a3e1a0001d8ac6fb2980a004b82ffa75232795d … Domain name: NULL User name: domain\username … ------------------------------------------------------ STunnel is not sending the domain and sends the user name consisting of domain and username. When IE is configured to use NLM proxy, traffic is as -------------- win shark for IE ----------------------------- CONNECT dest:destport HTTP/1.1 , NTLMSSP_AUTH, User: domain\username Proxy-Authorization: NTLM some long string NTLM Secure Service Provider NTLMSSP identifier: NTLMSSP NTLM Message Type: NTLMSSP_AUTH (0x00000003) Lan Manager Response: 10f2d8147a2651de00000000000000000000000000000000 … NTLM Response: 951842e95a3e1a0001d8ac6fb2980a004b82ffa75232795d … Domain name: domain … User name: username .. Host name: host -------------------------------------------------------------- ---- stunnel log --------------- 2011.08.04 10:11:16 LOG7[2384:5480]: Service https started 2011.08.04 10:11:16 LOG7[2384:5480]: Option TCP_NODELAY set on local socket 2011.08.04 10:11:16 LOG5[2384:5480]: Service https accepted connection from 127.0.0.1:9913 2011.08.04 10:11:16 LOG7[2384:5480]: remote socket: FD=1456 allocated (non-blocking mode) 2011.08.04 10:11:16 LOG6[2384:5480]: connect_blocking: connecting 172.23.11.161:8080 2011.08.04 10:11:16 LOG7[2384:5480]: connect_blocking: s_poll_wait 172.23.11.161:8080: waiting 10 seconds 2011.08.04 10:11:16 LOG5[2384:5480]: connect_blocking: connected 172.23.11.161:8080 2011.08.04 10:11:16 LOG5[2384:5480]: Service https connected remote server from 172.23.11.45:9914 2011.08.04 10:11:16 LOG7[2384:5480]: Remote FD=1456 initialized 2011.08.04 10:11:16 LOG7[2384:5480]: Option TCP_NODELAY set on remote socket 2011.08.04 10:11:16 LOG5[2384:5480]: Negotiations for connect (client side) started 2011.08.04 10:11:16 LOG7[2384:5480]: -> CONNECT 172.23.11.35:443 HTTP/1.1 2011.08.04 10:11:16 LOG7[2384:5480]: -> Host: 172.23.11.35:443 2011.08.04 10:11:16 LOG7[2384:5480]: -> Proxy-Connection: keep-alive 2011.08.04 10:11:16 LOG7[2384:5480]: -> Proxy-Authorization: NTLM TlRMTVNTUAABAAAAAgIAAA== 2011.08.04 10:11:16 LOG7[2384:5480]: -> 2011.08.04 10:11:16 LOG7[2384:5480]: <- HTTP/1.1 407 Proxy Authentication Required 2011.08.04 10:11:16 LOG7[2384:5480]: <- Server: FreeProxy/4.50 2011.08.04 10:11:16 LOG7[2384:5480]: <- Date: Thu, 04 Aug 2011 17:11:16 GMT 2011.08.04 10:11:16 LOG7[2384:5480]: <- Content-Type: text/html 2011.08.04 10:11:16 LOG7[2384:5480]: <- Transfer-Encoding: Chunked 2011.08.04 10:11:16 LOG7[2384:5480]: <- Proxy-Authenticate: NTLM TlRMTVNTUAACAAAAAAAAADgAAAACAgACATR6TVahgFIAAAAAAAAAAAAAAAA4AAAABQLODgAAAA8= 2011.08.04 10:11:16 LOG7[2384:5480]: <- Proxy-Connection: Keep-Alive 2011.08.04 10:11:16 LOG7[2384:5480]: <- 2011.08.04 10:11:16 LOG7[2384:5480]: -> CONNECT 172.23.11.35:443 HTTP/1.1 2011.08.04 10:11:16 LOG7[2384:5480]: -> Host: 172.23.11.35:443 2011.08.04 10:11:16 LOG7[2384:5480]: -> Proxy-Authorization: NTLM TlRMTVNTUAADAAAAAAAAAGwAAAAYABgAQAAAAAAAAABsAAAAFAAUAFgAA......1jDUOrcoBBus0aPbH44onfcpGZvdW5kc3RvbmVccHN5cy1udGxt 2011.08.04 10:11:16 LOG7[2384:5480]: -> 2011.08.04 10:11:16 LOG7[2384:5480]: <- 7E5 2011.08.04 10:11:16 LOG3[2384:5480]: CONNECT request rejected 2011.08.04 10:11:16 LOG7[2384:5480]: <- <html> 2011.08.04 10:11:16 LOG7[2384:5480]: <- 2011.08.04 10:11:16 LOG5[2384:5480]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2011.08.04 10:11:16 LOG7[2384:5480]: Service https finished (0 left) 2011.08.04 10:11:16 LOG7[2384:5480]: str_stats: 0 block(s), 0 byte(s) -------------------------------- Please help!!! Subhash Sharma

1 0

silent install of windows stunnel
by Laurent Licour 04 Aug '11

04 Aug '11

stunnel use NSIS as installer and it is possible to use /S switch to run silent install However, even in this mode, openssl configuration tools is executed and prompt for certificate informations. I think that executign this tools should be skip in silent mode -- Laurent LICOUR

2 2

stunnel OK without "transparent = source", with = timeout problem
by Elodie BOSSIER 03 Aug '11

03 Aug '11

Greetings again, Thanks so much to have updated the manual about SNI, my stunel works correctly. But i have a tiny problem, when i visit my webserver, the SERVER['REMOTE_ADDR'] with PHP isn't the ip adress of the visitor but the IP of the stunnel. I have read the manual about this transparent proxy and i don't sucess with the configuration. This is my config file : pid = /stunnel.pid options = NO_SSLv2 transparent = source [virtual] accept = 443 cert = /usr/local/openssl/etc/CERTIFICATES/www.franceserv.fr_cert.cert key = /usr/local/openssl/etc/PRIVATE_KEYS/www.franceserv.fr_key.pem connect = www.franceserv.fr:80 [sni1] sni = virtual:elodie.franceserv.com cert = /etc/ssl-fsh/cert-elodie.franceserv.com.pem key = /etc/ssl-fsh/key-franceserv.key connect = elodie.franceserv.com:80 [sni2] sni = virtual:befun.franceserv.com cert = /etc/ssl-fsh/cert-befun.franceserv.com.pem key = /etc/ssl-fsh/key-franceserv.key connect = befun.franceserv.com:80 It's don't work, i have a timeout with my browser. With iptables, i have set this : iptables -t mangle -N DIVERT iptables -t mangle -A PREROUTING -p tcp -m socket -j DIVERT iptables -t mangle -A DIVERT -j MARK --set-mark 1 iptables -t mangle -A DIVERT -j ACCEPT ip rule add fwmark 1 lookup 100 ip route add local 0.0.0.0/0 dev lo table 100 echo 0 > /proc/sys/net/ipv4/conf/lo/rp_filter echo 1 > /proc/sys/net/ipv4/ip_forward My stunnel is on the server 192.168.0.20 and the webserver on 192.168.0.2 I try to follow the help of http://www.stunnel.org/static/stunnel.html#service_level_options with : transparent = none | source | destination | both (Unix only) Could you tell me what i make wrong please ?

2 4

Failed to run 2 instances of windows service (error 1053)
by Laurent Licour 03 Aug '11

03 Aug '11

I have to run at the same time on the same windows host, 2 instances of stunnel : a client instance and a server instance I have 2 config files : stunnel-client.conf , stunnel-server.conf Each configuration works, but not at the same time. I can install 2 services (with differents service name), but i can't start both services at the same time. I have to stop the first one to start the second one stunnel.exe -install stunnel-client.conf stunnel.exe -install stunnel-server.conf stunnel.exe -start stunnel-client.conf stunnel.exe -start stunnel-server.conf --> error 1053 stunnel.exe -stop stunnel-client.conf stunnel.exe -start stunnel-server.conf stunnel.exe -start stunnel-client.conf --> error 1053 It is also not possible to start the both configurations directly (no service mode). test run with stunnel 4.42b2 on windows XPe and Win2008R2 -- Laurent LICOUR

2 1

Failed to run 2 instances of windows service (error 1053)
by Laurent Licour 01 Aug '11

01 Aug '11

I have to run at the same time on the same windows host, 2 instances of stunnel : a client instance and a server instance I have 2 config files : stunnel-client.conf , stunnel-server.conf Each configuration works, but not at the same time. I can install 2 services (with differents service name), but i can't start both services at the same time. I have to stop the first one to start the second one stunnel.exe -install stunnel-client.conf stunnel.exe -install stunnel-server.conf stunnel.exe -start stunnel-client.conf stunnel.exe -start stunnel-server.conf --> error 1053 stunnel.exe -stop stunnel-client.conf stunnel.exe -start stunnel-server.conf stunnel.exe -start stunnel-client.conf --> error 1053 It is also not possible to start the both configurations directly (no service mode). test run with stunnel 4.42b2 on windows XPe and Win2008R2 -- Laurent LICOUR

1 0

Re: [stunnel-users] Stunnel on the same machine
by subrata＠indiatimes.com 01 Aug '11

01 Aug '11

The configuration files are : pid = /var/stunnel.pid ;chroot = /var/lib/stunnel setuid = nobody setgid = nobody foreground =yes ; Use it for client mode client = yes ; Service-level configuration [pop3s] accept = 995 connect = 110 [imaps] accept = 993 connect = 143 [ssmtp] accept = 465 connect = 25 [mysqls] accept = 3307 connect = 192.168.1.6:3307 On 192.168.1.6 ---------------------- pid = /var/stunnel.pid setuid =nobody setgid = nobody foreground = yes client = no ; Service-level configuration [pop3s] accept = 995 connect = 110 [imaps] accept = 993 connect = 143 [ssmtp] accept = 465 connect = 25 [mysqls] accept =3307 connect =3306 connecting like /usr/local/mysql/bin/mysql -h 127.0.0.1 -u root -p -P 3307 Enter password: On entring password the following lines appear : ERROR 2013 (HY000): Lost connection to MySQL server at 'reading initial communication packet', system error: 104 Subrata ----- Original Message ----- From: Brian Hatch <bri(a)stunnel.org> To: subrata(a)indiatimes.com Sent: Sun, 7 Oct 2007 10:02:17 +0530 (IST) Subject: Re: [stunnel-users] Stunnel on the same machine Near 2007-10-05 22:17 +0530, subrata(a)indiatimes.com insisted: > After starting stunnel and connecting the mysql client/usr/local/mysql/bin/mysql -h 127.0.0.1 -u root -p the flow gets stuck at the Enter password prompt any suggestions how to proceed from there. What do your stunnel configuration files look like? Other problem: mysql client may decide to use a local domain socket when connecting to localhost, thwarting your attempts to go via Stunnel. You might want to 'strace mysql ...' and look for the connect() lines. -- Brian Hatch Time flies like an Systems and arrow. Fruit flies Security Engineer like a banana. http://www.ifokr.org/bri/ Every message PGP signed -- My life has changed. What about yours? Log on to the new Indiatimes Mail and Live out of the Inbox!

3 3

DH parameters
by yyy 30 Jul '11

30 Jul '11

Hello! How to specify custom DH parameters? There is an option for specifying ECDH curve (curve option), but not for ordinary DH. Searching man page for "DH" did not yield anything. Searching this list archive for "DH paramaeters" found only some default error messages.

2 1

Re: [stunnel-users] Problem with SNI "Specified option name is not valid here"
by Michal Trojnara 26 Jul '11

26 Jul '11

I wrote: > AFAIR SNI is supported in OpenSSL 1.0.0 and later. I will confirm it > and I will update the manual page if needed. I updated the manual: http://www.stunnel.org/static/stunnel.html Mike

1 0

stunnel 4.41 released
by Michal Trojnara 25 Jul '11

25 Jul '11

Dear Users, I have released version 4.41 of stunnel. This is a bugfix release. I highly recommend Windows users to upgrade. The ChangeLog entry: Version 4.41, 2011.07.25, urgency: MEDIUM: * Bugfixes - Fixed Windows service crash of stunnel 4.40. Home page: http://www.stunnel.org/ Download: ftp://ftp.stunnel.org/stunnel/ SHA-256 hash for stunnel-4.41.tar.gz: 08e0e7df42bfb8b8551eb6c4b5b50eae6051aaf75077101d729e67c7a3a00c72 Best regards, Mike

1 0

Issue with -quiet option (Windows 2000 Server SP4)
by rtr purchase 25 Jul '11

25 Jul '11

Hello, Thank you for STunnel. I've been using BLAT command line mailer for years at a client's site to send system status messages to me. Recently the client switched to ATT's SSL protected email. Blat does not support SSL. STunnel to the rescue. I started with ver. 4.39. I wanted to start and stop the STUNNEL service via script commands but found that the -quiet switch did not suppress the OK message box consistently. This naturally stopped the script from continuing. This was true of both the -start and -stop functions but was more of an issue with the -stop function. While looking through the documentation to see what I might be doing wrong, I saw that 4.40 was released (the day after I downloaded 4.39). 4.40 has the same issue with the -quiet switch but the addition of the -exit switch allowed me to start and stop STUNNEL without running it as a service. Great timing! I had tested my scripts using a Windows 7 machine where they functioned as expected. It was only when I moved them to the client's Windows 2000 Server (SP4) that this issue appeared.

1 0

Problem with SNI "Specified option name is not valid here"
by Elodie BOSSIER 25 Jul '11

25 Jul '11

Greetings, I try to use SNI with stunnel with following this help : http://answerpot.com/showthread.php?2708344-Server-side+SNI+support but i have this erreor : Line 90: "sni = virtual:elodie.franceserv.com": Specified option name is not valid here My config : stunnel 4.40 on x86_64-unknown-linux-gnu platform Compiled/running with OpenSSL 0.9.8o 01 Jun 2010 A part of my config file : [virtual] accept = 443 cert = /etc/ssl-fsh/cert-www.franceserv.com.pem key = /etc/ssl-fsh/key-franceserv.key connect = www.franceserv.fr:80 [sni1] ; notice that "sni" option is used instead of "accept" sni = virtual:elodie.franceserv.com cert = /etc/ssl-fsh/cert-elodie.franceserv.com.pem key = /etc/ssl-fsh/key-franceserv.key connect = elodie.franceserv.com:80 [sni2] ; notice that "sni" option is used instead of "accept" sni = virtual:befun.franceserv.com cert = /etc/ssl-fsh/cert-befun.franceserv.com.pem key = /etc/ssl-fsh/key-franceserv.key connect = befun.franceserv.com:80 Thanks so much.

1 0

stunnel 4.40 released
by Michal Trojnara 23 Jul '11

23 Jul '11

Dear Users, I have released version 4.40 of stunnel. The ChangeLog entry: Version 4.40, 2011.07.23, urgency: LOW: * New Win32 features - Added a GUI menu to save cached peer certificate chains. - Added "-exit" option to stop stunnel *not* running as a service. This option may be useful for scripts. - Added file version information to stunnel.exe. - A number of other GUI improvements. * Other new features - Hardcoded 2048-bit DH parameters are used as a fallback if DH parameters are not provided in stunnel.pem. - Default "ciphers" value updated to prefer ECDH: "ALL:!SSLv2:!aNULL:!EXP:!LOW:-MEDIUM:RC4:+HIGH". - Default ECDH curve updated to "prime256v1". - Removed support for temporary RSA keys (used in obsolete export ciphers). Home page: http://www.stunnel.org/ Download: ftp://ftp.stunnel.org/stunnel/ SHA-256 hash for stunnel-4.40.tar.gz: 91f32c7654dde0e1cf37ed0d8517e0d0b5985cd30443a9d64cd33d232b5fe9ce Best regards, Mike

1 0

Re: [stunnel-users] 4.39 RPM
by Jack Liu 21 Jul '11

21 Jul '11

Thank you so much for making RPMs for me~=D Mr. Jack Date: Mon, 18 Jul 2011 20:20:04 -0700 From: josealf(a)rocketmail.com Subject: Re: [stunnel-users] 4.39 RPM To: jackliu92(a)hotmail.com; stunnel-users(a)stunnel.org Jack, Take a look at my RPMs for CentOS 5. These follow the same conventions as the official RPMS:- By default log to authpriv instead of daemon facility- sample config file adjusted.- I also set the /etc/init.d/stunnel init script executable Binaries were compiled with gcc 4.4. Should work on similar systems (RHEL 5, Scientific Linux 5, Oracle Linux 5 or later). You should be able to build your own binaries starting from the source rpm. My apologies if posting attachments on this list is not encouraged. Regards,Jose From: Jack Liu <jackliu92(a)hotmail.com> To: stunnel-users(a)stunnel.org Sent: Wednesday, July 13, 2011 3:14 AM Subject: [stunnel-users] 4.39 RPM Does anyone have version 4.39 RPM inst package or knows where to download it? Thank you! _______________________________________________ stunnel-users mailing list stunnel-users(a)stunnel.org http://stunnel.mirt.net/mailman/listinfo/stunnel-users

1 0

misconfiguration of transparent proxy
by Marco Strullato 19 Jul '11

19 Jul '11

Hi all, is there any way to use stunnel to proxy a connection without using encryption? I have an application that is listening on 0.0.0.0:port but which refuses connection if not coming from localhost:port and that application is reachable only with telnet, with no encryption. I have found a possible configuration that is the following: chroot = /var/run/stunnel/ setuid = nobody setgid = nobody pid = /stunnel.pid socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 debug = 7 output = /var/log/stunnel.log transparent=yes [AppSrv01] accept = 5776 connect = 4776 [AppSrv02] accept = 5777 connect = 4777 but it seems not working: that is the log. 2011.07.06 11:08:20 LOG5[30375:47349987463360]: stunnel 4.15 on x86_64-redhat-linux-gnu with OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008 2011.07.06 11:08:20 LOG5[30375:47349987463360]: Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv6 Auth:LIBWRAP 2011.07.06 11:08:20 LOG6[30375:47349987463360]: file ulimit = 1024 (can be changed with 'ulimit -n') 2011.07.06 11:08:20 LOG6[30375:47349987463360]: poll() used - no FD_SETSIZE limit for file descriptors 2011.07.06 11:08:20 LOG5[30375:47349987463360]: 500 clients allowed 2011.07.06 11:08:20 LOG7[30375:47349987463360]: FD 4 in non-blocking mode 2011.07.06 11:08:20 LOG7[30375:47349987463360]: FD 5 in non-blocking mode 2011.07.06 11:08:20 LOG7[30375:47349987463360]: FD 6 in non-blocking mode 2011.07.06 11:08:20 LOG7[30375:47349987463360]: SO_REUSEADDR option set on accept socket 2011.07.06 11:08:20 LOG7[30375:47349987463360]: AppSrv01 bound to 0.0.0.0:5776 2011.07.06 11:08:20 LOG7[30375:47349987463360]: FD 7 in non-blocking mode 2011.07.06 11:08:20 LOG7[30375:47349987463360]: SO_REUSEADDR option set on accept socket 2011.07.06 11:08:20 LOG7[30375:47349987463360]: AppSrv02 bound to 0.0.0.0:5777 2011.07.06 11:08:20 LOG7[30376:47349987463360]: Created pid file /stunnel.pid 2011.07.06 11:08:30 LOG7[30376:47349987463360]: AppSrv01 accepted FD=8 from 10.0.1.11:41922 2011.07.06 11:08:30 LOG7[30376:1094314304]: AppSrv01 started 2011.07.06 11:08:30 LOG7[30376:1094314304]: FD 8 in non-blocking mode 2011.07.06 11:08:30 LOG7[30376:1094314304]: TCP_NODELAY option set on local socket 2011.07.06 11:08:30 LOG7[30376:1094314304]: FD 9 in non-blocking mode 2011.07.06 11:08:30 LOG7[30376:1094314304]: FD 10 in non-blocking mode 2011.07.06 11:08:30 LOG7[30376:47349987463360]: Cleaning up the signal pipe 2011.07.06 11:08:30 LOG6[30376:47349987463360]: Child process 30384 finished with code 0 2011.07.06 11:08:30 LOG7[30376:1094314304]: Connection from 10.0.1.11:41922 permitted by libwrap 2011.07.06 11:08:30 LOG5[30376:1094314304]: AppSrv01 connected from 10.0.1.11:41922 2011.07.06 11:08:30 LOG7[30376:1094314304]: SSL state (accept): before/accept initialization 2011.07.06 11:08:43 LOG3[30376:1094314304]: SSL_accept: 140760FC: error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown protocol 2011.07.06 11:08:43 LOG5[30376:1094314304]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2011.07.06 11:08:43 LOG7[30376:1094314304]: AppSrv01 finished (0 left) and from the standard out I get: 2011.07.06 11:08:20 LOG7[30375:47349987463360]: Snagged 64 random bytes from /home/user/.rnd 2011.07.06 11:08:20 LOG7[30375:47349987463360]: Wrote 1024 new random bytes to /home/user/.rnd 2011.07.06 11:08:20 LOG7[30375:47349987463360]: RAND_status claims sufficient entropy for the PRNG 2011.07.06 11:08:20 LOG6[30375:47349987463360]: PRNG seeded successfully 2011.07.06 11:08:20 LOG7[30375:47349987463360]: Certificate: /etc/stunnel/stunnel.pem 2011.07.06 11:08:20 LOG7[30375:47349987463360]: Key file: /etc/stunnel/stunnel.pem 2011.07.06 11:08:20 LOG7[30375:47349987463360]: SSL context initialized for service AppSrv01 2011.07.06 11:08:20 LOG7[30375:47349987463360]: Certificate: /etc/stunnel/stunnel.pem 2011.07.06 11:08:20 LOG7[30375:47349987463360]: Key file: /etc/stunnel/stunnel.pem 2011.07.06 11:08:20 LOG7[30375:47349987463360]: SSL context initialized for service AppSrv02 What happens connecting with telnet is: Trying 10.0.2.140... Connected to server. Escape character is '^]'. It seems the connection is successful but with tcpdump I see nothing and moreover I see nothing also in the application log. If I type something nothing happens. It seems that the flow is not passed to the destination port. Do you have any hint? Thanks! -- Marco

5 5

stunnel 4.40b1
by Michal Trojnara 17 Jul '11

17 Jul '11

Dear Users, I have just added a new Windows GUI menu to save peer certificate chains. Please to give it a try and let me know if there are any issues, so I can fix them in the final stunnel 4.40: ftp://ftp.stunnel.org/stunnel/stunnel-4.40b1-installer.exe Another useful function would probably be a replacement for Unix c_rehash script. 8-) I also appreciate your comments are suggestions related to the new functionality. Best regards, Mike

1 0

Windows 7 connection to HTTPS server
by Daniel Pierce 10 Jul '11

10 Jul '11

stunnel user group, Thanks Yucong Sun or your help. I have changed the configuration file values to the values that you recommended. I didn't read the documentation careful enough. [https] accept = 3600 connect = partnerlogin.advancedmd.com <https://partnerlogin.advancedmd.com/practicemanager/xmlrpc/processrequest.a sp> :443 (stopped and started the windows service to get the new configuration) HOWEVER I'm still not getting stunnel to provide the interface to the https web server. I have a http client software which I have tried both GET and POST calls to https://localhost:3600/practicemanager/xmlrpc/processrequest.asp <blocked::https://localhost:3600/practicemanager/xmlrpc/processrequest.asp> Every time the interface comes back with the error "The Connection to the Server was Reset while the Page was Loading" So I decided to try the page using a standard web browser (Firefox and IE) thinking that my client software may have a problem. I opened the browser and entered the address https://localhost:3600/practicemanager/xmlrpc/processrequest.asp <blocked::https://localhost:3600/practicemanager/xmlrpc/processrequest.asp> Got the same results. So I changed the configuration to go to the same web site as gmail with the following configuration. [https] accept = 3600 connect = mail.google.com:443 When I try to open the page with the browser to address https://localhost:3600/mail/?hl=en <blocked::https://localhost:3600/mail/?hl=en&shva=1#inbox> &shva=1#inbox, I get the same error message. NEXT I started WIRESHARK on the network and filtered for packets coming from/to my host computer. When I enter https://localhost:3600/mail/?hl=en <blocked::https://localhost:3600/mail/?hl=en&shva=1#inbox> &shva=1#inbox on the browser. The following details were captured by WIRESHARK. Source Destination Protocol Lenth Info 74.125.225.53 192.168.1.70 TLSV1 107 Application Data Protocol: http 192.168.1.70 74.125.255.53 TCP 54 https [ACK] Seq=1 Ack=54 win=16181 Len=0 74.125.225.53 192.168.1.70 TLSV1 112 Application Data Protocol: http 192.168.1.70 74.125.255.53 TLSV1 81 Encrypted Alert 192.168.1.70 74.125.255.53 TCP 54 60089 > https [FIN, ACK] Seq=28 Ack=112 win=16167 Len=0 192.168.1.70 74.125.255.54 TCP 1484 [TCP segment of a reassembled PDU] 192.168.1.70 74.125.255.53 TLSv1 316 Application Data 74.125.225.53 192.168.1.70 TCP 60 https > 60089 [FIN, ACK] Seq=112 Ack=29 win=196 len=0 192.168.1.70 74.125.255.53 TCP 54 60089 > https [ACK] Seq=29 Ack=113 win=16167 Len=0 74.125.225.54 192.168.1.70 TCP 60 https > 60113 [ACK] Seq=1 Ack=1693 win=285 len=0 74.125.225.54 192.168.1.70 TLSV1 457 Application Data Protocol: http 192.168.1.70 74.125.255.54 TCP 54 60113 > https [ACK] Seq=1693 Ack=404 win=16445 Len=0 SO the packets are being sent and returned, but the protocol is erroring out for GOOGLE MAIL. NEXT When I configure the service for the other https web server. https://localhost:3600/practicemanager/xmlrpc/processrequest.asp <blocked::https://localhost:3600/practicemanager/xmlrpc/processrequest.asp> I get a simular exchange, but more reference to change cipher Spec. and http RST for different ip address Source Destination Protocol Lenth Info 192.168.1.70 74.125.255.54 TCP 66 60840 > https [SYN] 74.125.225.54 192.168.1.70 TCP 66 https > 60840 [SYN, ACK] 192.168.1.70 74.125.255.54 TCP 54 60840 > https [ACK] 192.168.1.70 74.125.255.54 TLSv1 451 client Hello 74.125.225.54 192.168.1.70 TCP 60 https > 60840 [ACK] 74.125.225.54 192.168.1.70 TLSv1 97 change cipher Spec, Encrypted Handshake Message 192.168.1.70 74.125.255.54 TLSv1 162 Application Data 74.125.225.54 192.168.1.70 TCP 60 https > 60840 [ACK] 192.168.1.70 98.137.80.34 TCP 54 60819 > http [RST, ACK] STUNNEL LOG for partnerlogin.advancedmd.com:443 NO OBVIOUS ERRORS 2011.07.08 21:31:21 LOG7[4960:4568]: No limit detected for the number of clients 2011.07.08 21:31:21 LOG7[4960:4568]: make_sockets: s_socket#1: FD=144 allocated (blocking mode) 2011.07.08 21:31:21 LOG7[4960:4568]: make_sockets: s_socket#2: FD=148 allocated (blocking mode) 2011.07.08 21:31:21 LOG7[4960:4568]: make_sockets: s_accept: FD=152 allocated (non-blocking mode) 2011.07.08 21:31:21 LOG5[4960:4568]: stunnel 4.39 on x86-pc-mingw32-gnu platform 2011.07.08 21:31:21 LOG5[4960:4568]: Compiled/running with OpenSSL 1.0.0d 8 Feb 2011 2011.07.08 21:31:21 LOG5[4960:4568]: Threading:WIN32 SSL:ENGINE Auth:none Sockets:SELECT,IPv6 2011.07.08 21:31:21 LOG5[4960:4568]: Reading configuration from file stunnel.conf 2011.07.08 21:31:21 LOG7[4960:4568]: Snagged 64 random bytes from C:/.rnd 2011.07.08 21:31:22 LOG7[4960:4568]: Wrote 1024 new random bytes to C:/.rnd 2011.07.08 21:31:22 LOG7[4960:4568]: PRNG seeded successfully 2011.07.08 21:31:22 LOG7[4960:4568]: Configuration SSL options: 0x01000000 2011.07.08 21:31:22 LOG7[4960:4568]: SSL options set: 0x01000004 2011.07.08 21:31:22 LOG7[4960:4568]: Certificate: stunnel.pem 2011.07.08 21:31:22 LOG7[4960:4568]: Certificate loaded 2011.07.08 21:31:22 LOG7[4960:4568]: Key file: stunnel.pem 2011.07.08 21:31:22 LOG7[4960:4568]: Private key loaded 2011.07.08 21:31:22 LOG7[4960:4568]: SSL context initialized for service http 2011.07.08 21:31:22 LOG5[4960:4568]: Configuration successful 2011.07.08 21:31:22 LOG7[4960:4568]: accept socket: FD=144 allocated (non-blocking mode) 2011.07.08 21:31:22 LOG7[4960:4568]: Option SO_REUSEADDR set on accept socket 2011.07.08 21:31:22 LOG7[4960:4568]: Service http bound to 0.0.0.0:3600 2011.07.08 21:31:22 LOG7[4960:4568]: Service http opened FD=144 Do I need to have the Public Key Certificate for the remote serve installed in stunnel for it to access the page? I'm trying to find a simple configuration to prove out that the basic stunnel application is working. Any suggestions? Is there something basic that I'm missing? If I send a GET request, I should get a response from the https server that CONNECT is configurred for. Is there a compatibility issue between OpenSSL and https web server? Thanks in advance for the help. Dan

2 3

problem running on Mac OS X
by athir＠nuaimi.com 07 Jul '11

07 Jul '11

Hi there. I've built stunnel on the Mac (including the patch for str.c) and have problem when I run it. Whenever it gets a request on one side (from a browser), I see the following in the log. The weird thing is that when I run stunnel in gdb it works?? 2011.07.05 17:51:00 LOG7[6300:4297842688]: Service https started 2011.07.05 17:51:00 LOG7[6300:4297842688]: Option TCP_NODELAY set on local socket 2011.07.05 17:51:00 LOG7[6300:4297842688]: Waiting for a libwrap process 2011.07.05 17:51:00 LOG7[6300:4297842688]: Acquired libwrap process #0 2011.07.05 17:51:00 LOG3[6300:4297842688]: Unexpected socket close (read_blocking) 2011.07.05 17:51:00 LOG5[6300:4297842688]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket Any advice would be appreciated. thanks Athir Nuaimi

3 2

Windows 7 connection to HTTPS server
by Daniel Pierce 06 Jul '11

06 Jul '11

stunnel user group, I'm trying to use stunnel to connect to a secure web server to do an XML interface, but I'm having no luck. What am I missing? Environment OS = Windows 7 Ultimate stunnel version = 4.39 (latest release) stunnel installed as service and is running. Windows Firewall = OFF, but have added stunnel to the application list Anti-Virus = ESET, have disabled Web Access Protection Configuration File cert = stunnel.pem options = NO_SSLv2 debug = 7 output = c:\Program files\stunnel\stunnel.log client = yes [https] accept = 3600 connect = <https://partnerlogin.advancedmd.com/practicemanager/xmlrpc/processrequest.a sp> https://partnerlogin.advancedmd.com/practicemanager/xmlrpc/processrequest.as p ;TIMEOUTclose = 0 Log File 2011.07.06 16:00:07 LOG7[5880:6040]: No limit detected for the number of clients 2011.07.06 16:00:07 LOG7[5880:6040]: make_sockets: s_socket#1: FD=136 allocated (blocking mode) 2011.07.06 16:00:07 LOG7[5880:6040]: make_sockets: s_socket#2: FD=140 allocated (blocking mode) 2011.07.06 16:00:07 LOG7[5880:6040]: make_sockets: s_accept: FD=144 allocated (non-blocking mode) 2011.07.06 16:00:07 LOG5[5880:6040]: stunnel 4.39 on x86-pc-mingw32-gnu platform 2011.07.06 16:00:07 LOG5[5880:6040]: Compiled/running with OpenSSL 1.0.0d 8 Feb 2011 2011.07.06 16:00:07 LOG5[5880:6040]: Threading:WIN32 SSL:ENGINE Auth:none Sockets:SELECT,IPv6 2011.07.06 16:00:07 LOG5[5880:6040]: Reading configuration from file stunnel.conf 2011.07.06 16:00:07 LOG7[5880:6040]: Snagged 64 random bytes from C:/.rnd 2011.07.06 16:00:07 LOG7[5880:6040]: Wrote 1024 new random bytes to C:/.rnd 2011.07.06 16:00:07 LOG7[5880:6040]: PRNG seeded successfully 2011.07.06 16:00:07 LOG3[5880:6040]: Unknown TCP service '//partnerlogin.advancedmd.com/practicemanager/xmlrpc/processrequest.asp' 2011.07.06 16:00:07 LOG6[5880:6040]: Cannot resolve 'https://partnerlogin.advancedmd.com/practicemanager/xmlrpc/processrequest.a sp' - delaying DNS lookup 2011.07.06 16:00:07 LOG7[5880:6040]: Configuration SSL options: 0x01000000 2011.07.06 16:00:07 LOG7[5880:6040]: SSL options set: 0x01000004 2011.07.06 16:00:07 LOG7[5880:6040]: Certificate: stunnel.pem 2011.07.06 16:00:07 LOG7[5880:6040]: Certificate loaded 2011.07.06 16:00:07 LOG7[5880:6040]: Key file: stunnel.pem 2011.07.06 16:00:07 LOG7[5880:6040]: Private key loaded 2011.07.06 16:00:07 LOG7[5880:6040]: SSL context initialized for service https 2011.07.06 16:00:07 LOG5[5880:6040]: Configuration successful 2011.07.06 16:00:07 LOG7[5880:6040]: accept socket: FD=136 allocated (non-blocking mode) 2011.07.06 16:00:07 LOG7[5880:6040]: Option SO_REUSEADDR set on accept socket 2011.07.06 16:00:07 LOG7[5880:6040]: Service https bound to 0.0.0.0:3600 2011.07.06 16:00:07 LOG7[5880:6040]: Service https opened FD=136 I can open a Firefox browser and the designated URL address resolves, but stunnel cannot resolve it. Do I have the configuration wrong or is Windows 7 blocking the connection? I'm able to send an XML message from by application to 127.0.0.1:3600 and stunnel responds with a successful but EMPTY RESPONSE. Thanks in advance for your help. Dan Pierce Xpert Assist Corp.

2 1

stunnel 4.39 released
by Michal Trojnara 06 Jul '11

06 Jul '11

Dear Users, I have just released version 4.39 of stunnel. This version includes major improvements of the Windows GUI and installer. The ChangeLog entry: Version 4.39, 2011.07.06, urgency: LOW: * New features - New Win32 installer module to build self-signed stunnel.pem. - Added configuration file editing with Windows GUI. - Added log file reopening file editing with Windows GUI. It might be useful to also implement log file rotation. - Improved configuration file reload with Windows GUI. Home page: http://www.stunnel.org/ Download: ftp://ftp.stunnel.org/stunnel/ SHA-256 hash for stunnel-4.39.tar.gz: 972e4c150e3012ba8777f149c858e1e290aeb7ad7976e1551ac1752bc04fb0ed Best regards, Mike

1 0

stunnel 4.38 released
by Michal Trojnara 29 Jun '11

29 Jun '11

Dear Users, I have just released version 4.38 of stunnel. The ChangeLog entry: Version 4.38, 2011.06.28, urgency: MEDIUM: * New features - Server-side SNI implemented (RFC 3546 section 3.1) with a new service-level option "nsi". - "socket" option also accepts "yes" and "no" for flags. - Nagle's algorithm is now disabled by default for improved interactivity. * Bugfixes - A compilation fix was added for OpenSSL version < 1.0.0. - Signal pipe set to non-blocking mode. This bug caused hangs of stunnel features based on signals, e.g. local mode, FORK threading, or configuration file reload on Unix. Win32 platform was not affected. Home page: http://www.stunnel.org/ Download: ftp://ftp.stunnel.org/stunnel/ SHA-256 hash for stunnel-4.38.tar.gz: aa49012195fde4dc3e4bed2bb25283cb40a6e0ad8295a47e730652f611e2268c Best regards, Mike

2 1

STunnel on 443 (ip1) and iis (443) on ip2?
by R. van der Gugten 27 Jun '11

27 Jun '11

Hi, Is it possible to run STunnel on my server to lisen to IP1 on port 443 And to have IIS listen to IP2 on port 443? Should I make changes in the config file? Thanks, Reinier Current server stunnel file: cert = stunnel.pem key = stunnel.pem ; Some performance tunings socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ; Authentication stuff verify = 2 CAfile = certs.pem ; Use it for client mode client = no ; Service-level configuration [SQLServer] accept = <<IP1:xxx.xxx.xxx.xxx>>:443 connect = 127.0.0.1:31433

2 1

Stuunnel Help
by Chris Pershin 24 Jun '11

24 Jun '11

Hello All, I am new to stunnel and am trying to solve a problem. When I try to start stunnel I get the following log file Reading configuration from file stunnel.conf PRNG seeded successfully Certificate: stunnel.pem Certificate loaded Key file: stunnel.pem Private key loaded SSL context initialized for service pop3s Certificate: stunnel.pem Certificate loaded Key file: stunnel.pem Private key loaded SSL context initialized for service imaps Certificate: stunnel.pem Certificate loaded Key file: stunnel.pem Private key loaded SSL context initialized for service ssmtp Configuration successful No limit detected for the number of clients accept socket: FD=164 allocated (non-blocking mode) Option SO_REUSEADDR set on accept socket Service pop3s bound to 0.0.0.0:110 Service pop3s opened FD=164 accept socket: FD=188 allocated (non-blocking mode) Option SO_REUSEADDR set on accept socket Service imaps bound to 0.0.0.0:143 Service imaps opened FD=188 accept socket: FD=196 allocated (non-blocking mode) Option SO_REUSEADDR set on accept socket Error binding ssmtp to 0.0.0.0:25 bind: No error (0) Server is down My Config file is: cert = stunnel.pem socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 client = yes [pop3s] accept = 110 connect = pop.gmail.com:995 [imaps] accept = 143 connect = imap.gmail.com:993 [ssmtp] accept = 25 connect = smtp.gmail.com:465 Can someone please help me? Thanks Chris

2 1

Server-side SNI support
by Michal Trojnara 18 Jun '11

18 Jun '11

Dear Users, I'd like the next version of stunnel to support server-side Server Name Indication: https://secure.wikimedia.org/wikipedia/en/wiki/Server_Name_Indication The new service-level stunnel.conf option would be: sni = <master service>:<sni host> For example: [virtual] accept = 443 ; settings for clients that didn't send an SNI extension cert = default.pem connect = default.internal.mydomain.com:80 [sni1] ; notice that "sni" option is used instead of "accept" sni = virtual:server1.mydomain.com cert = server1.pem connect = server1.internal.mydomain.com:80 [sni2] sni = virtual:server2.mydomain.com cert = server2.pem connect = server2.internal.mydomain.com:80 ; other service-level options may be specified here verify = 3 CAfile = server2-allowed-clients.pem [sni3] sni = virtual:server3.mydomain.com cert = server3.pem connect = server3.internal.mydomain.com:80 I would appreciate your comments on the user interface I designed for this functionality. Best regards, Michal Trojnara

2 3

stunnel 4.37 released
by Michal Trojnara 17 Jun '11

17 Jun '11

Dear Users, I have just released version 4.37 of stunnel. This release is mainly intended to fix bugs and portability issues introduced in versions 4.35 and 4.36. This version also provides new security defaults, updated to better match current best practices in cryptographic applications. The ChangeLog entry: Version 4.37, 2011.06.17, urgency: MEDIUM: * New features - Client-side SNI implemented (RFC 3546 section 3.1). - Default "ciphers" changed from the OpenSSL default to a more secure and faster "RC4-MD5:HIGH:!aNULL:!SSLv2". A paranoid (and usually slower) setting would be "HIGH:!aNULL:! SSLv2". - Recommended "options = NO_SSLv2" added to the sample stunnel.conf file. - Default client method upgraded from SSLv3 to TLSv1. To connect servers without TLS support use "sslVersion = SSLv3" option. - Improved --enable-fips and --disable-fips ./configure option handling. - On startup stunnel now compares the compiled version of OpenSSL against the running version of OpenSSL. A warning is logged on mismatch. * Bugfixes - Non-blocking socket handling in local mode fixed (Debian bug #626856). - UCONTEXT threading mode fixed. - Removed the use of gcc Thread-Local Storage for improved portability. - va_copy macro defined for platforms that do not have it. - Fixed "local" option parsing on IPv4 systems. - Solaris compilation fix (redefinition of "STR"). Home page: http://www.stunnel.org/ Download: ftp://ftp.stunnel.org/stunnel/ SHA-256 hash for stunnel-4.37.tar.gz: 02ca30609ccb26f6e52ff7eb79a6778ea452a04432eaef7d959d19933f6fe109 Best regards, Mike

1 0

stunnel-4.36 issues ("Operation now in progress")
by Schmidt, Bernhard 16 Jun '11

16 Jun '11

Hi, today our blessed Enterprise-class distribution SLES11.1 made a major upgrade from stunnel 4.27 to stunnel 4.36, which somewhat broke our monitoring agent. Config: ------ client = no pid = /var/run/stunnel.pid debug = 4 socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 cert = /etc/stunnel/stunnel.pem [uptimeagent] accept = 9998 exec = /opt/uptime-agent/bin/uptimeagent ------ We get the following output when connecting: 2011.06.16 15:13:37 LOG7[4597:140226692765440]: local socket: FD=12 allocated (non-blocking mode) 2011.06.16 15:13:37 LOG7[4597:140226692765440]: Service uptimeagent accepted FD=12 from 10.156.10.160:55926 2011.06.16 15:13:37 LOG7[4597:140226692757264]: Service uptimeagent started 2011.06.16 15:13:37 LOG7[4597:140226692757264]: Option TCP_NODELAY set on local socket 2011.06.16 15:13:37 LOG7[4597:140226692757264]: Waiting for a libwrap process 2011.06.16 15:13:37 LOG7[4597:140226692757264]: Acquired libwrap process #0 2011.06.16 15:13:37 LOG7[4597:140226692757264]: Releasing libwrap process #0 2011.06.16 15:13:37 LOG7[4597:140226692757264]: Released libwrap process #0 2011.06.16 15:13:37 LOG7[4597:140226692757264]: Service uptimeagent permitted by libwrap from 10.156.10.160:55926 2011.06.16 15:13:37 LOG5[4597:140226692757264]: Service uptimeagent accepted connection from 10.156.10.160:55926 2011.06.16 15:13:37 LOG7[4597:140226692757264]: SSL state (accept): before/accept initialization 2011.06.16 15:13:37 LOG7[4597:140226692757264]: SSL state (accept): SSLv3 read client hello A 2011.06.16 15:13:37 LOG7[4597:140226692757264]: SSL state (accept): SSLv3 write server hello A 2011.06.16 15:13:37 LOG7[4597:140226692757264]: SSL state (accept): SSLv3 write certificate A 2011.06.16 15:13:37 LOG7[4597:140226692757264]: SSL state (accept): SSLv3 write server done A 2011.06.16 15:13:37 LOG7[4597:140226692757264]: SSL state (accept): SSLv3 flush data 2011.06.16 15:13:37 LOG7[4597:140226692757264]: SSL state (accept): SSLv3 read client key exchange A 2011.06.16 15:13:37 LOG7[4597:140226692757264]: SSL state (accept): SSLv3 read finished A 2011.06.16 15:13:37 LOG7[4597:140226692757264]: SSL state (accept): SSLv3 write change cipher spec A 2011.06.16 15:13:37 LOG7[4597:140226692757264]: SSL state (accept): SSLv3 write finished A 2011.06.16 15:13:37 LOG7[4597:140226692757264]: SSL state (accept): SSLv3 flush data 2011.06.16 15:13:37 LOG7[4597:140226692757264]: 1 items in the session cache 2011.06.16 15:13:37 LOG7[4597:140226692757264]: 0 client connects (SSL_connect()) 2011.06.16 15:13:37 LOG7[4597:140226692757264]: 0 client connects that finished 2011.06.16 15:13:37 LOG7[4597:140226692757264]: 0 client renegotiations requested 2011.06.16 15:13:37 LOG7[4597:140226692757264]: 1 server connects (SSL_accept()) 2011.06.16 15:13:37 LOG7[4597:140226692757264]: 1 server connects that finished 2011.06.16 15:13:37 LOG7[4597:140226692757264]: 0 server renegotiations requested 2011.06.16 15:13:37 LOG7[4597:140226692757264]: 0 session cache hits 2011.06.16 15:13:37 LOG7[4597:140226692757264]: 0 external session cache hits 2011.06.16 15:13:37 LOG7[4597:140226692757264]: 0 session cache misses 2011.06.16 15:13:37 LOG7[4597:140226692757264]: 0 session cache timeouts 2011.06.16 15:13:37 LOG6[4597:140226692757264]: SSL accepted: new session negotiated 2011.06.16 15:13:37 LOG6[4597:140226692757264]: Negotiated ciphers: RC4-MD5 SSLv3 Kx=RSA Au=RSA Enc=RC4(128) Mac=MD5 2011.06.16 15:13:37 LOG7[4597:140226692757264]: socket#1: FD=13 allocated (non-blocking mode) 2011.06.16 15:13:37 LOG7[4597:140226692757264]: socket#2: FD=14 allocated (non-blocking mode) 2011.06.16 15:13:37 LOG3[4597:140226692757264]: connect: Operation now in progress (115) 2011.06.16 15:13:37 LOG5[4597:140226692757264]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2011.06.16 15:13:37 LOG7[4597:140226692757264]: Service uptimeagent finished (0 left) 2011.06.16 15:13:37 LOG7[4597:140226692757264]: str_stats: 0 blocks, 0 bytes We did not see this in 4.27, 4.33 and 4.34, but we see it in a 3rd party 4.35 RPM. This suspiciously sounds like http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=626856, and according to the changelog there is already a fix in the unreleased 4.37 version for this. - Could this in fact be the same bug? - Is the patch available somewhere? I could not find a source repository - Is there a workaround? Thanks, Bernhard

1 0

Login log-level when verify=3
by Philippe Hameau 15 Jun '11

15 Jun '11

Hi everyone, I'm happily using stunnel for almost 8 years now :) I recently began to use verify=3 and i'm quite disappointed that a succesful access does not appear in the logs unless they are set to quite verbose. To be precise, i think it makes sense, for paranoid setups to keep track of successful accesses to. I'd suggest logging remote end's DN for log level =3 or 4. As there were some improvements lately in verify=3, i hope you could integrate this too. Thanks

2 1

STUNNEL 4.36 Windows - https - 404 Error
by Narasimhan Rangaswamy 13 Jun '11

13 Jun '11

Whenever I connect to "http://localhost:20010" I get the proper https repsonse from server "https://sslwebsite.xxxx.com". But the moment I add, "https://localhost:20010/someprogrampath", I get "404 File Not found error". But if I access, " https://sslwebsite.xxxx.com/someprogrampath" directly it WORKS. Any ideas? I use the following configuration. =================================== ; Authentication stuff verify = 2 ; Don't forget to c_rehash CApath ;CApath = c:\certs ; It's often easier to use CAfile CAfile = c:\certs\MetavanteTest_client.pem ; Don't forget to c_rehash CRLpath ;CRLpath = crls ; Alternatively you can use CRLfile ;CRLfile = crls.pem ; Some debugging stuff useful for troubleshooting debug = 7 output = c:\stunnel.log ; Use it for client mode client = yes ; Service-level configuration ;[pop3s] ;accept = 995 ;connect = 110 ;[imaps] ;accept = 993 ;connect = 143 ;[ssmtp] ;accept = 465 ;connect = 25 [https] cert = c:\certs\xxxx_client.pem accept = 20010 connect = sswebsite.xxxx.com:443 ;TIMEOUTclose = 0 ; vim:ft=dosini sslVersion = all =========================================

2 1

Re: [stunnel-users] How to make stunnel autorun on startup?
by Jack Liu 11 Jun '11

11 Jun '11

You got it! Thank you so much! Mr. Jack Subject: Re: [stunnel-users] How to make stunnel autorun on startup? To: jackliu92(a)hotmail.com From: josealf(a)rocketmail.com Date: Sat, 11 Jun 2011 04:17:05 +0000 Most likely it is in /usr/bin Update the script From: Jack Liu <jackliu92(a)hotmail.com> Date: Fri, 10 Jun 2011 21:24:22 -0600 To: <josealf(a)rocketmail.com>; <stunnel-users(a)stunnel.org> Subject: RE: [stunnel-users] How to make stunnel autorun on startup? Sorry, I just hit reply and forgot to add stunnel-users(a)stunnel.org I have the script, however, my system is centos and the following error occur when start stunnel service # service stunnel start Starting stunnel: /etc/init.d/stunnel: line 77: /usr/sbin/stunnel: No such file or directory Line 77 is: #Path to executable SEXE=/usr/sbin/stunnel I have no idea where my stunnel executable is. Thank you! Mr. Jack > Subject: Re: [stunnel-users] How to make stunnel autorun on startup? > To: jackliu92(a)hotmail.com; stunnel-users-bounces(a)stunnel.org; stunnel-users(a)stunnel.org > From: josealf(a)rocketmail.com > Date: Sat, 11 Jun 2011 02:38:26 +0000 > > Jack, > > On which platform? > On Red Hat and derived distributions, You copy the stunnel startup script to the /etc/init.d directory and set it to run at startup with the chkconfig command. > > Assuming your stunnel startup script is stunnel, you do > > /sbin/chkconfig stunnel on > > You can find an init script in the stunnel source package. > > Regards, > > Jose > > -----Original Message----- > From: Jack Liu <jackliu92(a)hotmail.com> > Sender: stunnel-users-bounces(a)stunnel.org > Date: Fri, 10 Jun 2011 20:06:48 > To: <stunnel-users(a)stunnel.org> > Subject: [stunnel-users] How to make stunnel autorun on startup? > >_______________________________________________ > stunnel-users mailing list > stunnel-users(a)stunnel.org > http://stunnel.mirt.net/mailman/listinfo/stunnel-users > > >

1 0

How to make stunnel autorun on startup?
by Jack Liu 11 Jun '11

11 Jun '11

How do you make stunnel autorun on startup? Mr. Jack

2 2

Cant get Stunnel to work (SEARCHED GOOGLE FOR HOURS)
by Matt Labrasseur 09 Jun '11

09 Jun '11

root@ubuntu:/usr/local/etc/stunnel# /usr/local/sbin/stunnel 2011.06.08 23:54:48 LOG7[23242:3077367488]: Snagged 64 random bytes from /root/.rnd 2011.06.08 23:54:48 LOG7[23242:3077367488]: Wrote 1024 new random bytes to /root/.rnd 2011.06.08 23:54:48 LOG7[23242:3077367488]: RAND_status claims sufficient entropy for the PRNG 2011.06.08 23:54:48 LOG6[23242:3077367488]: PRNG seeded successfully Illegal instruction i cannot get it to start i tried to make a new stunnel.pem file root@ubuntu:/usr/local/etc/stunnel# openssl req -new -x509 -days 365 -nodes -out stunnel.pem -keyout stunnel.pem Generating a 1024 bit RSA private key ....++++++ ....................++++++ writing new private key to 'stunnel.pem' Illegal instruction helpppp Matthew Leb*****, A+ Linux + Network+ MCP MCITP MCTS Unified Messaging Architect TheServerGroup.com Toll Free 1-877-777-6514<https://mail.theservergroup.com/owa/?ae=PreFormAction&a=Reply&t=IPM.Note&id…> Ext 106

2 1

stunnel via xinetd and rsync problem
by campbellmc 06 Jun '11

06 Jun '11

Hi, I am having problems getting stunnel to tunnel rsync connections when stunnel is called from xinetd. I can get it to work fine when stunnel is run as a daemon, but when I try rsyncing from the client via xinetd, rsync complains: [root@lambeth ~]# rsync -av --port 2873 192.168.10.130::sanbackup . rsync: server sent "2011.06.06 06:13:56 LOG7[18335:3086816976]: Snagged 64 random bytes from /dev/urandom" rather than greeting rsync error: error starting client-server protocol (code 5) at main.c(1296) [receiver=2.6.8] [root@lambeth ~]# It appears that rsync on the client is getting the output of /dev/urandom, and the connection is abandoned. Any suggestions on how to avoid this? stunnel.conf (client): client = yes pid = /var/run/stunnel.pid connect = 192.168.10.240:2873 debug = 7 output = /var/log/stunnel.log accept = 2873 cert = /etc/stunnel/lambeth.pem xinetd config on client for rsync [ssync] service ssync { disable = no port = 2873 socket_type = stream wait = no user = root server = /usr/sbin/stunnel server_args = /etc/stunnel/stunnel-rsync-client.conf log_on_success += USERID log_on_failure += USERID } Any help welcomed! Regards, -Cam

1 0

Help with stunnel.config
by Quad Tran Inc quadtran 01 Jun '11

01 Jun '11

Hello, I am currently using your older product, SSLPROXY 1.1.2, and it is working fine, but I was looking to move to your STUNNEL 4.36. I cannot get the product to work, but that is probably because I have got the 'stunnel.conf' set up improperly. Is it at all possible to send me what the config file should look like if I supplied you with the parameters that I am using successfully with your older product. Current parameters on first session: sslproxy -L192.168.1.1 -l1024 -R192.168.1.2 -r24 -s -c quadCert.pem Current parameters on second session: sslproxy -L192.168.1.1 -l1024 -R192.168.0.2 -r23 -s -c quadCert.pem I would appreciate any help you can give me, and thank you for your time in this matter. Regards, Joe Lisi Quad-Tran of Michigan, Inc.

1 0

Slow connection to remote stunnel
by Thorsten Kampe 31 May '11

31 May '11

Hi, I'm using stunnel 4.36 on Linux to secure Samba SWAT. When I connect directly to the remot stunnel port with my browser on Windows 7 (https://swat-server:stunnel-port), I get a long delay after entering my credentials (about 60 seconds or so). This seems to be known issue (for instance see "You will be prompted for the Linux root user username and password. There will be a delay of about 60 to 75 seconds with each login."[1].) I did a Wireshark trace and it seems that the server simply does not respond during that time. But when I connect to the local stunnel client (http://localhost:stunnel-port), the SWAT page displays immediately. Is that "normal". How can I get the same speed without a stunnel client? Thorsten [1] <http://www.linuxhomenetworking.com/wiki/index.php/Quick_HOWTO_: _Ch10_:_Windows,_Linux,_and_Samba#Test_The_Secure_SWAT_Login>

2 1

stunnel cannot exec SWAT
by Thorsten Kampe 28 May '11

28 May '11

Hi, I'm successfully securing Samba SWAT on Linux with stunnel 4.36. The connection goes like this: browser -> http://localhost:901 (stunnel) -> remote:50901 (xinetd) -> stunnel -> remote:901 (xinetd) -> SWAT. Now I want to remove the xinetd swat file and have stunnel directly call swat: browser -> http://localhost:901 (stunnel) -> remote:50901 (xinetd) -> stunnel -> SWAT I do this by commenting out "connect" and setting exec and execargs (as documented in stunnel's man page): #connect = 901 exec = /usr/sbin/swat execargs = swat Now I get a "Connection closed by remote server" in my browser. The log shows this: [xinetd] START: swat-ssl pid=1026 from=192.168.0.253 [stunnel] Reading configuration from file /etc/stunnel/swat.xconf [stunnel] Could not load DH parameters from /etc/stunnel/stunnel.pem [stunnel] Configuration successful [stunnel] No limit detected for the number of clients [stunnel] stunnel 4.36 on i686-pc-linux-gnu with OpenSSL 1.0.0d 8 Feb 2011 [stunnel] Threading:PTHREAD SSL:ENGINE Auth:LIBWRAP Sockets:POLL, IPv6 [stunnel] Service stunnel accepted connection from 192.168.0.253:60418 [stunnel] SSL accepted: new session negotiated [stunnel] Negotiated ciphers: ECDHE-RSA-AES256-SHA SSLv3 Kx=ECDH Au=RSA Enc=AES(256) Mac=SHA1 [stunnel] connect: Operation now in progress (115) [stunnel] Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket [stunnel] pid=1026 duration=0(sec) [xinetd] EXIT: swat-ssl status=0 pid=1026 duration=0(sec) The successful connection (when xinetd calls swat) looks like this: [xinetd] START: swat-ssl pid=5076 from=192.168.0.253 [everything as above] [stunnel] connect_blocking: connecting 127.0.0.1:901 [xinetd] START: swat pid=5085 from=127.0.0.1 [stunnel] connect_blocking: connected 127.0.0.1:901 [stunnel] Service stunnel connected remote server from 127.0.0.1:47098 [stunnel] SSL_shutdown successfully sent close_notify [stunnel] Connection closed: 288 bytes sent to SSL, 512 bytes sent to socket [xinetd] EXIT: swat status=0 pid=5085 duration=0(sec) [xinetd] EXIT: swat-ssl status=0 pid=5076 duration=0(sec) The only difference I can see is the "connect" in the problem case versus the "connect_blocking" in the success case. Who can shed some light? Thorsten

1 0

stunnel doing client cert authentication?
by Johann Smith 24 May '11

24 May '11

Hi, I have stunnel running as an https server. Can stunnel handle/validate client certificates in this mode? How are authentication details forwarded to the http backend, by additional headers? Thank you! Johann

2 1

During make of stunnel-4.36 on OSX: "str.c:83: error: thread-local storage not supported for this target"
by SciFi 24 May '11

24 May '11

Hello, During make, I suddenly got this, from the stunnel-4.36 tarball: > str.c:83: error: thread-local storage not supported for this target while it was compiling src/str.c . I'm running MacOSX 10.6.7 with Xcode-3.2.6. I always compile for i386 32-bit mode. (The kernel must be in 32-bit mode for this model iMac, even though most tasks will run in 64-bit mode.) The stunnel-4.34 was built and is (still) running fine here. (I must've skipped -4.35 for some reason.) The src/str.c does seem to be a new module in 4.36, however. I configure stunnel this way: $ ./configure \ --enable-dependency-tracking \ --enable-static \ --enable-shared \ --with-ssl=/usr/local/ssl (same configure with 4.34 & 4.36) The configure step found most things, including libwrap etc. They're using the same compiler and other flags etc.: $ $CC --version i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5666) (dot 3) […] (I never use a pkg-mgr such as Macports or Fink; besides, they are both now back-level with stunnel.) I'm skeptical in upgrading Xcode to their 4.x series, with Apple's insistence we use the LLVM family there. ;) I'm just a hobbyist, using stunnel to connect Pan to NNTP servers thru their SSL services (including sending this message via Gmane). I am happy with 4.34 in this regard. If it's not too much trouble, though, could someone help further with this problem in 4.36, please? Thank you.

2 4

stunnel4 with exec as service for securing pop3
by Jörg-Volker Peetz 23 May '11

23 May '11

I would like to run the stunnel4 daemon in order to provide a pop3s service by using a pop server (solid-pop3d). The following configuration file doesn't work (the pop3 server doesn't start, I think) and I would like to ask for any hints. --stunnel.conf>>> cert = /etc/stunnel/stunnel4.pem sslVersion = SSLv3 [pop3s] accept = 995 exec = /usr/sbin/solid-pop3d execargs = solid-pop3d <<<stunnel.conf-- I would expect stunnel4 to start up solid-pop3d every time someone connects to port 995 and communicate to solid-pop3d, just like inetd would do, if configured to serve solid-pop3d. By the way, I have opened the service "pop3s" in /etc/hosts.allow. Thanks in advance for any help. -- Best regards, Jörg-Volker.

4 8

Re: [stunnel-users] problem with stunnel 4.36 (server mode), error after the 1st connexion
by Jose Alf. 15 May '11

15 May '11

Hi Laurent, Does it works fine with a previous version? If so, What's the lates version that works? If you google for "bind#1: Invalid argument (22) aix stunnel" you will find a mail thread with a similar issue. Regards, Jose ________________________________ From: "laurent.uk(a)bnpparibas.com" <laurent.uk(a)bnpparibas.com> To: stunnel-users(a)stunnel.org Sent: Fri, May 13, 2011 6:39:29 AM Subject: [stunnel-users] problem with stunnel 4.36 (server mode), error after the 1st connexion Hi everyone, i have installed the stunnel 4.36 today and now i have some errors... The 1st connexion is working fine : 011.05.13 13:23:44 LOG5[1802366:1]: Reading configuration from file /opt/freeware/etc/stunnel/stunnel_server_level1.conf 2011.05.13 13:23:44 LOG7[1802366:1]: Snagged 64 random bytes from //.rnd 2011.05.13 13:23:44 LOG7[1802366:1]: Wrote 1024 new random bytes to //.rnd 2011.05.13 13:23:44 LOG7[1802366:1]: PRNG seeded successfully 2011.05.13 13:23:44 LOG7[1802366:1]: Using DH parameters from /opt/freeware/etc/stunnel/ca_nopass.pem 2011.05.13 13:23:44 LOG6[1802366:1]: DH initialized with 512 bit key 2011.05.13 13:23:44 LOG7[1802366:1]: ECDH initialized 2011.05.13 13:23:44 LOG7[1802366:1]: Certificate: /opt/freeware/etc/stunnel/ca_nopass.pem 2011.05.13 13:23:44 LOG7[1802366:1]: Certificate loaded 2011.05.13 13:23:44 LOG7[1802366:1]: Key file: /opt/freeware/etc/stunnel/ca_nopass.pem 2011.05.13 13:23:44 LOG7[1802366:1]: Private key loaded 2011.05.13 13:23:44 LOG7[1802366:1]: Verify directory set to /opt/freeware/etc/stunnel/CA_files/ 2011.05.13 13:23:44 LOG7[1802366:1]: Added /opt/freeware/etc/stunnel/CA_files/ revocation lookup directory 2011.05.13 13:23:44 LOG7[1802366:1]: Added /opt/freeware/etc/stunnel/CRL_files/ revocation lookup directory 2011.05.13 13:23:44 LOG5[1802366:1]: Peer certificate location /opt/freeware/etc/stunnel/CA_files/ 2011.05.13 13:23:44 LOG7[1802366:1]: SSL context initialized for service pesitip 2011.05.13 13:23:44 LOG5[1802366:1]: Configuration successful 2011.05.13 13:23:44 LOG5[1802366:1]: No limit detected for the number of clients 2011.05.13 13:23:44 LOG7[1802366:1]: signal_pipe: FD=4 allocated (blocking mode) 2011.05.13 13:23:44 LOG7[1802366:1]: signal_pipe: FD=5 allocated (blocking mode) 2011.05.13 13:23:44 LOG7[1802366:1]: accept socket: FD=6 allocated (non-blocking mode) 2011.05.13 13:23:44 LOG7[1802366:1]: Option SO_REUSEADDR set on accept socket 2011.05.13 13:23:44 LOG7[1802366:1]: Service pesitip bound to 0.0.0.0:10443 2011.05.13 13:23:44 LOG7[1802366:1]: Service pesitip opened FD=6 2011.05.13 13:23:44 LOG7[1802366:1]: Created pid file /var/adm/stunnel_server_level1.pid 2011.05.13 13:23:44 LOG5[1802366:1]: stunnel 4.36 on powerpc-ibm-aix5.2.0.0 with OpenSSL 0.9.8k 25 Mar 2009 2011.05.13 13:23:44 LOG5[1802366:1]: Threading:PTHREAD SSL:ENGINE Auth:none Sockets:POLL, IPv6 2011.05.13 13:28:36 LOG7[1802366:1]: local socket: FD=7 allocated (non-blocking mode) 2011.05.13 13:28:36 LOG7[1802366:1]: Service pesitip accepted FD=7 from 10.254.181.230:2991 2011.05.13 13:28:36 LOG7[1802366:258]: Service pesitip started 2011.05.13 13:28:36 LOG7[1802366:258]: Option TCP_NODELAY set on local socket 2011.05.13 13:28:36 LOG5[1802366:258]: Service pesitip accepted connection from 10.254.181.230:2991 2011.05.13 13:28:36 LOG7[1802366:258]: SSL state (accept): before/accept initialization 2011.05.13 13:28:36 LOG7[1802366:258]: SSL state (accept): SSLv3 read client hello A 2011.05.13 13:28:36 LOG7[1802366:258]: SSL state (accept): SSLv3 write server hello A 2011.05.13 13:28:36 LOG7[1802366:258]: SSL state (accept): SSLv3 write certificate A 2011.05.13 13:28:36 LOG7[1802366:258]: SSL state (accept): SSLv3 write certificate request A 2011.05.13 13:28:36 LOG7[1802366:258]: SSL state (accept): SSLv3 flush data 2011.05.13 13:28:37 LOG7[1802366:258]: Starting certificate verification: depth=1, /O=SWIFT 2011.05.13 13:28:37 LOG5[1802366:258]: Certificate accepted: depth=1, /O=SWIFT 2011.05.13 13:28:37 LOG7[1802366:258]: Starting certificate verification: depth=0, /C=ww/O=swift/OU=personalid/OU=bnpafrpp/CN=crl-3skey-ebics-ts 2011.05.13 13:28:37 LOG5[1802366:258]: Certificate accepted: depth=0, /C=ww/O=swift/OU=personalid/OU=bnpafrpp/CN=crl-3skey-ebics-ts 2011.05.13 13:28:37 LOG7[1802366:258]: SSL state (accept): SSLv3 read client certificate A 2011.05.13 13:28:37 LOG7[1802366:258]: SSL state (accept): SSLv3 read client key exchange A 2011.05.13 13:28:37 LOG7[1802366:258]: SSL state (accept): SSLv3 read certificate verify A 2011.05.13 13:28:37 LOG7[1802366:258]: SSL state (accept): SSLv3 read finished A 2011.05.13 13:28:37 LOG7[1802366:258]: SSL state (accept): SSLv3 write change cipher spec A 2011.05.13 13:28:37 LOG7[1802366:258]: SSL state (accept): SSLv3 write finished A 2011.05.13 13:28:37 LOG7[1802366:258]: SSL state (accept): SSLv3 flush data 2011.05.13 13:28:37 LOG7[1802366:258]: 1 items in the session cache 2011.05.13 13:28:37 LOG7[1802366:258]: 0 client connects (SSL_connect()) 2011.05.13 13:28:37 LOG7[1802366:258]: 0 client connects that finished 2011.05.13 13:28:37 LOG7[1802366:258]: 0 client renegotiations requested 2011.05.13 13:28:37 LOG7[1802366:258]: 1 server connects (SSL_accept()) 2011.05.13 13:28:37 LOG7[1802366:258]: 1 server connects that finished 2011.05.13 13:28:37 LOG7[1802366:258]: 0 server renegotiations requested 2011.05.13 13:28:37 LOG7[1802366:258]: 0 session cache hits 2011.05.13 13:28:37 LOG7[1802366:258]: 0 external session cache hits 2011.05.13 13:28:37 LOG7[1802366:258]: 0 session cache misses 2011.05.13 13:28:37 LOG7[1802366:258]: 0 session cache timeouts 2011.05.13 13:28:37 LOG6[1802366:258]: SSL accepted: new session negotiated 2011.05.13 13:28:37 LOG6[1802366:258]: Negotiated ciphers: RC4-MD5 SSLv3 Kx=RSA Au=RSA Enc=RC4(128) Mac=MD5 2011.05.13 13:28:37 LOG7[1802366:258]: remote socket: FD=8 allocated (non-blocking mode) 2011.05.13 13:28:37 LOG6[1802366:258]: connect_blocking: connecting 159.50.5.165:10016 2011.05.13 13:28:37 LOG5[1802366:258]: connect_blocking: connected 159.50.5.165:10016 2011.05.13 13:28:37 LOG5[1802366:258]: Service pesitip connected remote server from 159.50.5.165:52585 2011.05.13 13:28:37 LOG7[1802366:258]: Remote FD=8 initialized 2011.05.13 13:28:37 LOG7[1802366:258]: Option TCP_NODELAY set on remote socket 2011.05.13 13:31:25 LOG7[1802366:258]: SSL alert (read): warning: close notify 2011.05.13 13:31:25 LOG7[1802366:258]: SSL closed on SSL_read 2011.05.13 13:31:25 LOG7[1802366:258]: Sending socket write shutdown 2011.05.13 13:31:25 LOG3[1802366:258]: readsocket: Connection reset by peer (73) 2011.05.13 13:31:25 LOG5[1802366:258]: Connection reset: 275 bytes sent to SSL, 17935 bytes sent to socket 2011.05.13 13:31:25 LOG7[1802366:258]: Service pesitip finished (0 left) 2011.05.13 13:31:25 LOG7[1802366:258]: str_stats: 36 blocks, 4350 bytes but when its the second i always have the error : 011.05.13 13:32:19 LOG7[1802366:1]: local socket: FD=7 allocated (non-blocking mode) 2011.05.13 13:32:19 LOG7[1802366:1]: Service pesitip accepted FD=7 from 10.254.181.230:3007 2011.05.13 13:32:19 LOG7[1802366:259]: Service pesitip started 2011.05.13 13:32:19 LOG7[1802366:259]: Option TCP_NODELAY set on local socket 2011.05.13 13:32:19 LOG5[1802366:259]: Service pesitip accepted connection from 10.254.181.230:3007 2011.05.13 13:32:19 LOG7[1802366:259]: SSL state (accept): before/accept initialization 2011.05.13 13:32:19 LOG7[1802366:259]: SSL state (accept): SSLv3 read client hello A 2011.05.13 13:32:19 LOG7[1802366:259]: SSL state (accept): SSLv3 write server hello A 2011.05.13 13:32:19 LOG7[1802366:259]: SSL state (accept): SSLv3 write certificate A 2011.05.13 13:32:19 LOG7[1802366:259]: SSL state (accept): SSLv3 write certificate request A 2011.05.13 13:32:19 LOG7[1802366:259]: SSL state (accept): SSLv3 flush data 2011.05.13 13:32:19 LOG7[1802366:259]: Starting certificate verification: depth=1, /O=SWIFT 2011.05.13 13:32:19 LOG6[1802366:259]: CERT: Verification not enabled 2011.05.13 13:32:19 LOG5[1802366:259]: Certificate accepted: depth=1, /O=SWIFT 2011.05.13 13:32:19 LOG7[1802366:259]: Starting certificate verification: depth=0, /C=ww/O=swift/OU=personalid/OU=bnpafrpp/CN=crl-3skey-ebics-ts 2011.05.13 13:32:19 LOG6[1802366:259]: CERT: Verification not enabled 2011.05.13 13:32:19 LOG5[1802366:259]: Certificate accepted: depth=0, /C=ww/O=swift/OU=personalid/OU=bnpafrpp/CN=crl-3skey-ebics-ts 2011.05.13 13:32:19 LOG7[1802366:259]: SSL state (accept): SSLv3 read client certificate A 2011.05.13 13:32:19 LOG7[1802366:259]: SSL state (accept): SSLv3 read client key exchange A 2011.05.13 13:32:19 LOG7[1802366:259]: SSL state (accept): SSLv3 read certificate verify A 2011.05.13 13:32:19 LOG7[1802366:259]: SSL state (accept): SSLv3 read finished A 2011.05.13 13:32:19 LOG7[1802366:259]: SSL state (accept): SSLv3 write change cipher spec A 2011.05.13 13:32:19 LOG7[1802366:259]: SSL state (accept): SSLv3 write finished A 2011.05.13 13:32:19 LOG7[1802366:259]: SSL state (accept): SSLv3 flush data 2011.05.13 13:32:19 LOG7[1802366:259]: 2 items in the session cache 2011.05.13 13:32:19 LOG7[1802366:259]: 0 client connects (SSL_connect()) 2011.05.13 13:32:19 LOG7[1802366:259]: 0 client connects that finished 2011.05.13 13:32:19 LOG7[1802366:259]: 0 client renegotiations requested 2011.05.13 13:32:19 LOG7[1802366:259]: 2 server connects (SSL_accept()) 2011.05.13 13:32:19 LOG7[1802366:259]: 2 server connects that finished 2011.05.13 13:32:19 LOG7[1802366:259]: 0 server renegotiations requested 2011.05.13 13:32:19 LOG7[1802366:259]: 0 session cache hits 2011.05.13 13:32:19 LOG7[1802366:259]: 0 external session cache hits 2011.05.13 13:32:19 LOG7[1802366:259]: 0 session cache misses 2011.05.13 13:32:19 LOG7[1802366:259]: 0 session cache timeouts 2011.05.13 13:32:19 LOG6[1802366:259]: SSL accepted: new session negotiated 2011.05.13 13:32:19 LOG6[1802366:259]: Negotiated ciphers: RC4-MD5 SSLv3 Kx=RSA Au=RSA Enc=RC4(128) Mac=MD5 2011.05.13 13:32:19 LOG7[1802366:259]: socket#1: FD=8 allocated (non-blocking mode) 2011.05.13 13:32:19 LOG7[1802366:259]: socket#2: FD=9 allocated (non-blocking mode) 2011.05.13 13:32:19 LOG7[1802366:259]: bind#1: Invalid argument (22) 2011.05.13 13:32:19 LOG7[1802366:259]: bind#2: Invalid argument (22) 2011.05.13 13:32:19 LOG7[1802366:259]: accept: FD=10 allocated (non-blocking mode) 2011.05.13 13:32:19 LOG6[1802366:259]: Local mode child started (PID=614488) 2011.05.13 13:32:19 LOG7[1802366:259]: Remote FD=10 initialized 2011.05.13 13:32:19 LOG7[1802366:259]: Option TCP_NODELAY set on remote socket 2011.05.13 13:32:19 LOG3[1802366:259]: transfer: s_poll_wait: Invalid argument (22) 2011.05.13 13:32:19 LOG3[614488:259]: : No such file or directory (2) 2011.05.13 13:32:19 LOG5[1802366:259]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket my configuration file is : ; Sample stunnel configuration file by Michal Trojnara 2002-2006 ; Some options used here may not be adequate for your particular configuration ; Please make sure you understand them (especially the effect of chroot jail) ; Certificate/key is needed in server mode and optional in client mode cert = /opt/freeware/etc/stunnel/ca_nopass.pem foreground = yes syslog = yes ; Protocol version (all, SSLv2, SSLv3, TLSv1) ;sslVersion = SSLv3 sslVersion = all ;ciphers = DES-CBC-SHA: ;ciphers = DES-CBC3-SHA:IDEA-CBC-MD5 ; Some security enhancements for UNIX systems - comment them out on Win32 ;chroot = /usr/local/stunnel/var/lib/stunnel ;chroot = /tmp/ ;setuid = root ;setgid = other ; PID is created inside chroot jail pid = /var/adm/stunnel_server_level1.pid ; Some performance tunings socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ;compression = rle ; Workaround for Eudora bug ;options = DONT_INSERT_EMPTY_FRAGMENTS ;options = Options_SSL ; Authentication stuff verify = 3 ; Don't forget to c_rehash CApath ; CApath is located inside chroot jail CApath = /opt/freeware/etc/stunnel/CA_files/ ; It's often easier to use CAfile ;CAfile = /opt/freeware/etc/stunnel/ca.pem ; Don't forget to c_rehash CRLpath ; CRLpath is located inside chroot jail CRLpath = /opt/freeware/etc/stunnel/CRL_files/ ; Alternatively you can use CRLfile ;CRLfile = /usr/local/stunnel/etc/stunnel/crls.pem ; Some debugging stuff useful for troubleshooting debug = 7 ; Use it for client mode client = no ; Service-level configuration [pesitip] accept = 10443 connect = XXXXXXXXXXXXX:10016 Can you help me to find a solution for this problem please? Thanks you very much. Laurent UK This message and any attachments (the "message") is intended solely for the addressees and is confidential. If you receive this message in error, please delete it and immediately notify the sender. Any use not in accord with its purpose, any dissemination or disclosure, either whole or partial, is prohibited except formal approval. The internet can not guarantee the integrity of this message. BNP PARIBAS (and its subsidiaries) shall (will) not therefore be liable for the message if modified. Do not print this message unless it is necessary, consider the environment. --------------------------------------------- Ce message et toutes les pieces jointes (ci-apres le "message") sont etablis a l'intention exclusive de ses destinataires et sont confidentiels. Si vous recevez ce message par erreur, merci de le detruire et d'en avertir immediatement l'expediteur. Toute utilisation de ce message non conforme a sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite, sauf autorisation expresse. L'internet ne permettant pas d'assurer l'integrite de ce message, BNP PARIBAS (et ses filiales) decline(nt) toute responsabilite au titre de ce message, dans l'hypothese ou il aurait ete modifie. N'imprimez ce message que si necessaire, pensez a l'environnement.

1 0

stunnel 4.36 compilation problems with Sun Studio compiler
by Ross Richardson 11 May '11

11 May '11

There are several minor problems using the Sun Studion 12 compiler (on Solaris 10 SPARC)... - in str.c, use of STR causes errors because /usr/include/sys/stropts.h contains: #define STR ('S'<<8) The this just requires replacing "STR" with something safer, such as "XSTR". - things fail horribly because SIZEOF_UNSIGNED_CHAR and friends get defined to 0. AFAICT, this happens because configure erroneously decides that cc suports -pendantic (which it appears to, but which causes linking to fail with the symbol "mcount" undefined). The following patch works around this: Index: configure --- configure.orig 2011-05-03 08:14:28.000000000 +1000 +++ configure 2011-05-04 13:51:53.785750000 +1000 @@ -4210,7 +4210,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ /* end confdefs.h. */ int main() {return 0;} _ACEOF -if ac_fn_c_try_compile "$LINENO"; then : +if ac_fn_c_try_link "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else - the compiler also gives warnings for the '\r' characters in version.h Hope this helps, rlr -- Ross L Richardson <URL:mailto:[email protected]> Senior Systems Administrator Phone : +61 (0)3 6226 6233 Information Technology Resources Fax : +61 (0)3 6226 7171 University of Tasmania, AUSTRALIA

2 4

stunnel high load and lower network I/O yields
by jay＠experts-exchange.com 10 May '11

10 May '11

Folks, We are finding a bottleneck with stunnel for video intensive apps where it will run with weighted CPU near 120% and network interface will yield 30.3Mb, whereas without stunnel the rates will top off near 53.1Mb during the 10 second intervals as reported by iftop. The peaks are higher, but this is not sustained for either case. In order to improve stunnel's performance, is it possible to use a less intensive compute processing encryption, or fork the stunnel per connection? Thanks

2 1

Re: [stunnel-users] Temporary failure in name resolution, (Michal Trojnara)
by Phil Wieland 08 May '11

08 May '11

On 30/04/11 11:00, stunnel-users-request(a)stunnel.org wrote: > > Your stunnel.conf contains: > chroot = /var/lib/stunnel4/ > > Unfortunately this directory does not contain resolver configuration > files: [] >> > These are WITHOUT the suggested patch, I am not really equipped for >> > building on this server. > The patch should solve your problem by causing stunnel to wait until your > resolver is available before chroot(2) is executed. > > Workarounds: > 1. mkdir /var/lib/stunnel4/etc&& cp /etc/resolv.conf > /var/lib/stunnel4/etc/ > 2. Use IP address instead of host names in your stunnel.conf > 3. Add static IP address of your remote host to /etc/hosts > > Best regards, > Mike > > Many thanks for the analysis, Mike. I'll have to organise myself to build so I can apply the patch. Can I be really cheeky and ask one more question? Why does the problem not go away when my resolver is available - Shouldn't stunnel look again for this stuff after getting a temporary error? Thanks again, Phil

2 2

UTF-8 Compatibility
by RetailDecisions 06 May '11

06 May '11

Hi, Can someone tell me from what version of STUNNEL is fully UTF-8 compatible? -- View this message in context: http://old.nabble.com/UTF-8-Compatibility-tp31559422p31559422.html Sent from the Stunnel - Users mailing list archive at Nabble.com.

1 0

UTF-8 Compatibility
by Greg Piazza 06 May '11

06 May '11

Morning All, Can someone tell me from what version(s) of STUNNEL fully support UTF-8? Thanks, Greg Gregory J. Piazza Director of Development Retail Decisions, Inc (ReD) Metropark 379 Thornall St, 7th floor Edison, NJ 08837 USA Direct - +1 732-452-2457 Fax - +1 732-549-0101 Email - gpiazza(a)red-usa.com<mailto:[email protected]> Web - http://www.retaildecisions.com<http://www.retaildecisions.com/> Making Payments Simple and Secure

1 0

Patch for XMPP in client mode
by Philipp Hartwig 05 May '11

05 May '11

Hi, I've attached a small patch which adds support for the XMPP protocol in client mode. It does pretty much what Brian Hatch has outlined under [1]. I've tested it with several Jabber servers and it seems to work nicely. I'd be very happy about any comments. Regards, Philipp [1] http://stunnel.mirt.net/pipermail/stunnel-users/2009-February/002278.html

1 1

transparent = source, stunnel connect always times out
by Robert Hardy 05 May '11

05 May '11

I've been fighting with stunnel, trying to get its transparent proxy support to work. No matter what I do, as soon as transparent = source support is turned on, tests with my mail client just time out. If I turn transparent proxy support off it works but appears as if connections are from localhost, which is undesirable. My goal is to have stunnel listen on *:465 and provide SSL protected connectivity, which appear to arrive from the remote client IP, on my mail server's external IP address on port 25. My mail server and the firewall with the rules on it are the same physical machine. Can someone please make some suggestions as to what else I can try to get this working? I'm running Linux 2.6.38 on a current CentOS/rhel5 box and I've got modules built for most netfilter options, including: NF_CONNTRACK=m NETFILTER_TPROXY=m NETFILTER_XT_MATCH_SOCKET=m NETFILTER_XT_TARGET_TPROXY=m /proc/sys/net/ipv4/conf/all/rp_filter = 0 /proc/sys/net/ipv4/ip_forward = 1 This is my stunnel config: cert = /etc/stunnel/assps.crt key = /etc/stunnel/assps.key pid = /var/run/stunnel/stunnel_smtps.pid verify = 0 debug = 7 output = /var/log/stunnel_smtps.log TIMEOUTconnect = 60 [smtps] accept = 465 connect = MY_EXTERNAL_IP:25 transparent = source My stunnel seems happy with the DH Parameters in my cert file. My firewall relevant rules: iptables -t mangle -N DIVERT iptables -t mangle -A PREROUTING -p tcp -m socket -j DIVERT iptables -t mangle -A DIVERT -j MARK --set-mark 1 iptables -t mangle -A DIVERT -j ACCEPT ip rule add fwmark 1 lookup 100 ip route add local 0.0.0.0/0 dev lo table 100 # stunnel -version stunnel 4.35 on i686-redhat-linux-gnu with OpenSSL 0.9.8e-fips-rhel5 01 July 2008 Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv6 Auth:LIBWRAP Global options debug = daemon.notice pid = /var/run/stunnel.pid RNDbytes = 64 RNDfile = /dev/urandom RNDoverwrite = yes Service-level options cert = /etc/stunnel/stunnel.pem ciphers = AES:ALL:!aNULL:!eNULL:+RC4:@STRENGTH curve = sect163r2 session = 300 seconds stack = 65536 bytes sslVersion = SSLv3 for client, all for server TIMEOUTbusy = 300 seconds TIMEOUTclose = 60 seconds TIMEOUTconnect = 10 seconds TIMEOUTidle = 43200 seconds verify = none # stunnel -sockets Socket option defaults: Option Accept Local Remote OS default SO_DEBUG -- -- -- 0 SO_DONTROUTE -- -- -- 0 SO_KEEPALIVE -- -- -- 0 SO_LINGER -- -- -- 0:0 SO_OOBINLINE -- -- -- 0 SO_RCVBUF -- -- -- 87380 SO_SNDBUF -- -- -- 16384 SO_RCVLOWAT -- -- -- 1 SO_SNDLOWAT -- -- -- 1 SO_RCVTIMEO -- -- -- 0:0 SO_SNDTIMEO -- -- -- 0:0 SO_REUSEADDR 1 -- -- 0 SO_BINDTODEVICE -- -- -- -- TCP_KEEPCNT -- -- -- 9 TCP_KEEPIDLE -- -- -- 7200 TCP_KEEPINTVL -- -- -- 75 IP_TOS -- -- -- 0 IP_TTL -- -- -- 64 TCP_NODELAY -- -- -- 0 Here is the log file with the connection timeout: 2011.03.20 15:26:43 LOG5[23214:3073877712]: Reading configuration from file /etc/stunnel/stunnel-assp_smtps.conf 2011.03.20 15:26:43 LOG7[23214:3073877712]: Snagged 64 random bytes from /root/.rnd 2011.03.20 15:26:43 LOG7[23214:3073877712]: Wrote 1024 new random bytes to /root/.rnd 2011.03.20 15:26:43 LOG7[23214:3073877712]: PRNG seeded successfully 2011.03.20 15:26:43 LOG7[23214:3073877712]: Using DH parameters from /etc/stunnel/assps.crt 2011.03.20 15:26:43 LOG6[23214:3073877712]: DH initialized with 512 bit key 2011.03.20 15:26:43 LOG7[23214:3073877712]: Certificate: /etc/stunnel/assps.crt 2011.03.20 15:26:43 LOG7[23214:3073877712]: Certificate loaded 2011.03.20 15:26:43 LOG7[23214:3073877712]: Key file: /etc/stunnel/assps.key 2011.03.20 15:26:43 LOG7[23214:3073877712]: Private key loaded 2011.03.20 15:26:43 LOG7[23214:3073877712]: SSL context initialized for service smtps 2011.03.20 15:26:43 LOG5[23214:3073877712]: Configuration successful 2011.03.20 15:26:43 LOG5[23214:3073877712]: No limit detected for the number of clients 2011.03.20 15:26:43 LOG7[23214:3073877712]: libwrap_init: FD=3 allocated (blocking mode) 2011.03.20 15:26:43 LOG7[23214:3073877712]: libwrap_init: FD=4 allocated (blocking mode) 2011.03.20 15:26:43 LOG7[23214:3073877712]: libwrap_init: FD=4 allocated (blocking mode) 2011.03.20 15:26:43 LOG7[23214:3073877712]: libwrap_init: FD=5 allocated (blocking mode) 2011.03.20 15:26:43 LOG7[23214:3073877712]: libwrap_init: FD=5 allocated (blocking mode) 2011.03.20 15:26:43 LOG7[23214:3073877712]: libwrap_init: FD=6 allocated (blocking mode) 2011.03.20 15:26:43 LOG7[23214:3073877712]: libwrap_init: FD=6 allocated (blocking mode) 2011.03.20 15:26:43 LOG7[23214:3073877712]: libwrap_init: FD=7 allocated (blocking mode) 2011.03.20 15:26:43 LOG7[23214:3073877712]: libwrap_init: FD=7 allocated (blocking mode) 2011.03.20 15:26:43 LOG7[23214:3073877712]: libwrap_init: FD=8 allocated (blocking mode) 2011.03.20 15:26:43 LOG7[23214:3073877712]: signal_pipe: FD=9 allocated (blocking mode) 2011.03.20 15:26:43 LOG7[23214:3073877712]: signal_pipe: FD=10 allocated (blocking mode) 2011.03.20 15:26:43 LOG7[23214:3073877712]: accept socket: FD=11 allocated (non-blocking mode) 2011.03.20 15:26:43 LOG7[23214:3073877712]: Option SO_REUSEADDR set on accept socket 2011.03.20 15:26:43 LOG7[23214:3073877712]: Service smtps bound to 0.0.0.0:465 2011.03.20 15:26:43 LOG7[23214:3073877712]: Service smtps opened FD=11 2011.03.20 15:26:44 LOG7[23220:3073877712]: Created pid file /var/run/stunnel/stunnel_smtps.pid 2011.03.20 15:26:44 LOG5[23220:3073877712]: stunnel 4.35 on i686-redhat-linux-gnu with OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008 2011.03.20 15:26:44 LOG5[23220:3073877712]: Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv6 Auth:LIBWRAP 2011.03.20 15:26:56 LOG7[23220:3073877712]: local socket: FD=0 allocated (non-blocking mode) 2011.03.20 15:26:56 LOG7[23220:3073877712]: Service smtps accepted FD=0 from MY_TESTING_CLIENT_IP:56765 2011.03.20 15:26:56 LOG7[23220:3073874832]: Service smtps started 2011.03.20 15:26:56 LOG7[23220:3073874832]: Option TCP_NODELAY set on local socket 2011.03.20 15:26:56 LOG7[23220:3073874832]: Waiting for a libwrap process 2011.03.20 15:26:56 LOG7[23220:3073874832]: Acquired libwrap process #0 2011.03.20 15:26:56 LOG7[23220:3073874832]: Releasing libwrap process #0 2011.03.20 15:26:56 LOG7[23220:3073874832]: Released libwrap process #0 2011.03.20 15:26:56 LOG7[23220:3073874832]: Service smtps permitted by libwrap from MY_TESTING_CLIENT_IP:56765 2011.03.20 15:26:56 LOG5[23220:3073874832]: Service smtps accepted connection from MY_TESTING_CLIENT_IP:56765 2011.03.20 15:26:56 LOG7[23220:3073874832]: SSL state (accept): before/accept initialization 2011.03.20 15:26:56 LOG7[23220:3073874832]: SSL state (accept): SSLv3 read client hello A 2011.03.20 15:26:56 LOG7[23220:3073874832]: SSL state (accept): SSLv3 write server hello A 2011.03.20 15:26:56 LOG7[23220:3073874832]: SSL state (accept): SSLv3 write certificate A 2011.03.20 15:26:56 LOG7[23220:3073874832]: SSL state (accept): SSLv3 write certificate request A 2011.03.20 15:26:56 LOG7[23220:3073874832]: SSL state (accept): SSLv3 flush data 2011.03.20 15:26:56 LOG7[23220:3073874832]: SSL alert (read): warning: no certificate 2011.03.20 15:26:56 LOG7[23220:3073874832]: SSL state (accept): SSLv3 read client key exchange A 2011.03.20 15:26:56 LOG7[23220:3073874832]: SSL state (accept): SSLv3 read finished A 2011.03.20 15:26:56 LOG7[23220:3073874832]: SSL state (accept): SSLv3 write change cipher spec A 2011.03.20 15:26:56 LOG7[23220:3073874832]: SSL state (accept): SSLv3 write finished A 2011.03.20 15:26:56 LOG7[23220:3073874832]: SSL state (accept): SSLv3 flush data 2011.03.20 15:26:56 LOG7[23220:3073874832]: 1 items in the session cache 2011.03.20 15:26:56 LOG7[23220:3073874832]: 0 client connects (SSL_connect()) 2011.03.20 15:26:56 LOG7[23220:3073874832]: 0 client connects that finished 2011.03.20 15:26:56 LOG7[23220:3073874832]: 0 client renegotiations requested 2011.03.20 15:26:56 LOG7[23220:3073874832]: 1 server connects (SSL_accept()) 2011.03.20 15:26:56 LOG7[23220:3073874832]: 1 server connects that finished 2011.03.20 15:26:56 LOG7[23220:3073874832]: 0 server renegotiations requested 2011.03.20 15:26:56 LOG7[23220:3073874832]: 0 session cache hits 2011.03.20 15:26:56 LOG7[23220:3073874832]: 0 external session cache hits 2011.03.20 15:26:56 LOG7[23220:3073874832]: 0 session cache misses 2011.03.20 15:26:57 LOG7[23220:3073874832]: 0 session cache timeouts 2011.03.20 15:26:57 LOG6[23220:3073874832]: SSL accepted: new session negotiated 2011.03.20 15:26:57 LOG6[23220:3073874832]: Negotiated ciphers: AES256-SHA SSLv3 Kx=RSA Au=RSA Enc=AES(256) Mac=SHA1 2011.03.20 15:26:57 LOG7[23220:3073874832]: remote socket: FD=1 allocated (non-blocking mode) 2011.03.20 15:26:57 LOG6[23220:3073874832]: local_bind succeeded on the original port 2011.03.20 15:26:57 LOG6[23220:3073874832]: connect_blocking: connecting MY_EXTERNAL_IP:25 2011.03.20 15:26:57 LOG7[23220:3073874832]: connect_blocking: s_poll_wait MY_EXTERNAL_IP:25: waiting 60 seconds 2011.03.20 15:27:57 LOG3[23220:3073874832]: connect_blocking: s_poll_wait MY_EXTERNAL_IP:25: TIMEOUTconnect exceeded 2011.03.20 15:27:57 LOG5[23220:3073874832]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2011.03.20 15:27:57 LOG7[23220:3073874832]: Service smtps finished (0 left) 2011.03.20 15:29:21 LOG7[23220:3073877712]: Dispatching signals from the signal pipe 2011.03.20 15:29:21 LOG5[23220:3073877712]: Received signal 15; terminating 2011.03.20 15:29:21 LOG7[23220:3073877712]: removing pid file /var/run/stunnel/stunnel_smtps.pid The only even slightly odd thing I see other than the timeouts is the " 2011.03.20 15:26:56 LOG7[23220:3073874832]: SSL alert (read): warning: no certificate" I'm not sure what that is about, but it doesn't seem critical...

2 3

Re: [stunnel-users] Réf. : Re: Réf. : Re: Réf. : Re: Réf. : Re: need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA
by Leandro Avila 04 May '11

04 May '11

Hi Laurent, Good to see you figured out the issue. I also learned more things myself. Thanks Jose ! To my knowledge cipher suites that use SHA2 are part of the TLS 1.2 specification but I don't think OpenSSL has that implemented. Cheers ---------------- Leandro Avila ________________________________ From: "laurent.uk(a)bnpparibas.com" <laurent.uk(a)bnpparibas.com> To: josealf(a)rocketmail.com Cc: stunnel-users(a)stunnel.org; stunnel-users-bounces(a)stunnel.org Sent: Wednesday, May 4, 2011 11:02 AM Subject: [stunnel-users] Réf. : Re: Réf. : Re: Réf. : Re: Réf. : Re: need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Hi everyone, It's ok now i have found the solution i add the root and intermediate certificate of verisign in my Capath and i use in s_client the option -CApath and now it's ok : New, TLSv1/SSLv3, Cipher is DES-CBC-SHA Server public key is 2048 bit Compression: NONE Expansion: NONE SSL-Session: Protocol : SSLv3 Cipher : DES-CBC-SHA Session-ID: XXXXXXXXXXX Session-ID-ctx: Master-Key: XXXXXXXXXXXXXXXXXXXX Key-Arg : None Start Time: 1304524805 Timeout : 7200 (sec) Verify return code: 0 (ok) but i have another question: How can i test the SHA-2? i search the cipher corresponding in SHA-2 but i didn't found it. Thanks for your help. Regards, Laurent UK Laurent UK Analyste PROTOCOLES RBIS - DBF PBMF2 DOMAINE PMF202 ELECTRONIC FILES 41, rue de Valmy - 93100 Montreuil - ACI CME04B1 Bureau 4226 Tel: 01.58.16.86.45 (68645) 04/05/2011 15:36 Pour josealf(a)rocketmail.com cc stunnel-users(a)stunnel.org, stunnel-users-bounces(a)stunnel.org Objet Réf. : Re: Réf. : Re: Réf. : Re: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHALien Jose, thanks you, i use my client certificate but have another error now : 1028202:error:25066067:DSO support routines:DLFCN_LOAD:could not load the shared library:dso_dlfcn.c:162:filename(libz.so): Could not load module . System error: No such file or directory 1028202:error:25070067:DSO support routines:DSO_load:could not load the shared library:dso_lib.c:244: Enter pass phrase for /opt/freeware/etc/stunnel/keystore/crl-3skey.pem: CONNECTED(00000003) SSL_connect:before/connect initialization SSL_connect:SSLv3 write client hello A SSL_connect:SSLv3 read server hello A depth=0 /C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com verify error:num=20:unable to get local issuer certificate verify return:1 depth=0 /C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com verify error:num=27:certificate not trusted verify return:1 depth=0 /C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com verify error:num=21:unable to verify the first certificate verify return:1 SSL_connect:SSLv3 read server certificate A SSL_connect:SSLv3 read server certificate request A SSL_connect:SSLv3 read server done A SSL_connect:SSLv3 write client certificate A SSL_connect:SSLv3 write client key exchange A SSL_connect:SSLv3 write certificate verify A SSL_connect:SSLv3 write change cipher spec A SSL_connect:SSLv3 write finished A SSL_connect:SSLv3 flush data SSL_connect:SSLv3 read finished A --- Certificate chain 0 s:/C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com i:/C=US/O=VeriSign, Inc./OU=VeriSign Trust Network/OU=Terms of use at https://www.verisign.com/rpa (c)10/CN=VeriSign Class 3 Secure Server CA - G3 1 s:/C=ww/O=swift/OU=personalid/OU=bnpafrpp/CN=crl-3skey-ebics-ts i:/O=SWIFT --- Server certificate -----BEGIN CERTIFICATE----- XXXXXXXXXXXXXXXXXX -----END CERTIFICATE----- subject=/C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com issuer=/C=US/O=VeriSign, Inc./OU=VeriSign Trust Network/OU=Terms of use at https://www.verisign.com/rpa (c)10/CN=VeriSign Class 3 Secure Server CA - G3 --- No client certificate CA names sent --- SSL handshake has read 2633 bytes and written 1732 bytes --- New, TLSv1/SSLv3, Cipher is AES256-SHA Server public key is 2048 bit Compression: NONE Expansion: NONE SSL-Session: Protocol : SSLv3 Cipher : AES256-SHA Session-ID: XXXXXXXXXXXXXXXXXX Session-ID-ctx: Master-Key: XXXXXXXXXXXXXXXXXX Key-Arg : None Start Time: 1304515751 Timeout : 7200 (sec) Verify return code: 21 (unable to verify the first certificate) --- Do you know the reason of this error? Maybe i have to add the first certificate file to a specific folder ? Regards, Laurent UK Internet josealf(a)rocketmail.com 04/05/2011 15:09 Pour Laurent UK cc stunnel-users(a)stunnel.org, stunnel-users-bounces(a)stunnel.org Objet Re: Réf. : Re: Réf. : Re: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Laurent, We need to present a client certificate to the server. That's the important part missing. Do that by adding -cert your_cert_filename to the command, like: openssl s_client -ssl3 -state -cert your_client_cert_filename -connect your-stunnel-ip:10443 See http://www.openssl.org/docs/apps/s_client.html Regards, Jose ________________________________ From: "laurent.uk(a)bnpparibas.com" <laurent.uk(a)bnpparibas.com> To: josealf(a)rocketmail.com Cc: stunnel-users(a)stunnel.org; stunnel-users-bounces(a)stunnel.org Sent: Wed, May 4, 2011 6:55:19 AM Subject: Réf. : Re: Réf. : Re: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Jose, thanks you for your response, i use the openssl s_client command but i have the following error : 1499296:error:25066067:DSO support routines:DLFCN_LOAD:could not load the shared library:dso_dlfcn.c:162:filename(libz.so): Could not load module . System error: No such file or directory 1499296:error:25070067:DSO support routines:DSO_load:could not load the shared library:dso_lib.c:244: CONNECTED(00000003) SSL_connect:before/connect initialization SSL_connect:SSLv3 write client hello A SSL_connect:SSLv3 read server hello A depth=0 /C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com verify error:num=20:unable to get local issuer certificate verify return:1 depth=0 /C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com verify error:num=27:certificate not trusted verify return:1 depth=0 /C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com verify error:num=21:unable to verify the first certificate verify return:1 SSL_connect:SSLv3 read server certificate A SSL_connect:SSLv3 read server certificate request A SSL_connect:SSLv3 read server done A SSL3 alert write:warning:no certificate SSL_connect:SSLv3 write client certificate A SSL_connect:SSLv3 write client key exchange A SSL_connect:SSLv3 write change cipher spec A SSL_connect:SSLv3 write finished A SSL_connect:SSLv3 flush data SSL3 alert read:fatal:handshake failure SSL_connect:failed in SSLv3 read finished A 1499296:error:14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert handshake failure:s3_pkt.c:1060:SSL alert number 40 1499296:error:1409E0E5:SSL routines:SSL3_WRITE_BYTES:ssl handshake failure:s3_pkt.c:530: is it normal? Thanks. Regards. Laurent UK Internet josealf(a)rocketmail.com 04/05/2011 13:38 Pour Laurent UK cc stunnel-users(a)stunnel.org, stunnel-users-bounces(a)stunnel.org Objet Re: Réf. : Re: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Laurent, Ideally, you should terminate the SSL connection on your final server. But that's not the problem here. It should work as is. Mosty likely the problem is on the client SSL software you are using to connect to stunnel. The cipher you are trying to use DESC-CBC-SHA works with SSLv3 and TLSv1. Can you force your client to use those protocols? Maybe it is trying to negotiate SSLv2. Also are you sure it is speaking SSL instead of plain text? You can test your connection to stunnel server with openssl s_client command. Example openssl s_client -ssl3 -state -connect your-stunnel-ip:10443 openssl s_client -tls1 -state -connect your-stunnel-ip:10443 if this works, we found the culprit. Regards Jose ________________________________ From: "laurent.uk(a)bnpparibas.com" <laurent.uk(a)bnpparibas.com> To: josealf(a)rocketmail.com Cc: stunnel-users(a)stunnel.org; stunnel-users-bounces(a)stunnel.org Sent: Wed, May 4, 2011 2:05:07 AM Subject: Réf. : Re: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Jose, I use 2 servers in my configuration: the first one who listenning on the port 10443 (where we receive encrypted traffic from software using ssl) and the second one who listenning the port 10016 (where we receive decrypted traffic). The first one receive the encrypted traffic, it decrypted it and send it to the second server that's why i only use the server mode on my fist server. Do you think that i also need to change this configuration? Cordialement, Laurent UK Internet josealf(a)rocketmail.com 03/05/2011 19:18 Pour Laurent UK cc stunnel-users(a)stunnel.org, stunnel-users-bounces(a)stunnel.org Objet Re: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Laurent, I'm not sure you are connecting the dots right. I see an stunnel server configuration. In this case, your stunnel is a front-end to a service you run on host XXXX port 10016. What is that service? Is stunnel running on the same host? Note that If stunnel is not running on the same host with IP XXXX, then you may have some traffic in clear text in your network (from the device running stunnel to the device hosting the service on port 10016). You need a client to connect to the stunnel server. Unless your client support SSL natively, you also should have an stunnel running on your client device with entries like these: client=yes [pestip] accept = 10443 connect = Your-Stunnel-server-IP:10443 In this case your client apps connects locally to port 10443, traffic is encrypted and sent to your server listening on port 10443, where it is decripted and send to IP XXXX port 10016. Regards, Jose ________________________________ From: "laurent.uk(a)bnpparibas.com" <laurent.uk(a)bnpparibas.com> To: josealf(a)rocketmail.com Cc: stunnel-users(a)stunnel.org; stunnel-users-bounces(a)stunnel.org Sent: Tue, May 3, 2011 10:48:11 AM Subject: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Dear Jose, here is the configuration file of my stunnel : ; Sample stunnel configuration file by Michal Trojnara 2002-2006 ; Some options used here may not be adequate for your particular configuration ; Please make sure you understand them (especially the effect of chroot jail) ; Certificate/key is needed in server mode and optional in client mode cert = /opt/freeware/etc/stunnel/ca_nopass.pem foreground = yes syslog = yes ; Protocol version (all, SSLv2, SSLv3, TLSv1) ;sslVersion = SSLv2 sslVersion = all ;ciphers = DES-CBC-SHA ;ciphers = DES-CBC3-SHA:IDEA-CBC-MD5 ; Some security enhancements for UNIX systems - comment them out on Win32 ;chroot = /usr/local/stunnel/var/lib/stunnel ;chroot = /tmp/ ;setuid = root ;setgid = other ; PID is created inside chroot jail pid = /var/adm/stunnel_server_level1.pid ; Some performance tunings socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ;compression = rle ; Workaround for Eudora bug ;options = DONT_INSERT_EMPTY_FRAGMENTS ;options = Options_SSL ; Authentication stuff verify = 3 ; Don't forget to c_rehash CApath ; CApath is located inside chroot jail CApath = /opt/freeware/etc/stunnel/CA_files/ ; It's often easier to use CAfile ;CAfile = /opt/freeware/etc/stunnel/ca.pem ; Don't forget to c_rehash CRLpath ; CRLpath is located inside chroot jail ;CRLpath = /crls ; Alternatively you can use CRLfile ;CRLfile = /usr/local/stunnel/etc/stunnel/crls.pem ; Some debugging stuff useful for troubleshooting debug = 7 ; Use it for client mode client = no ; Service-level configuration [pesitip] accept = 10443 connect = XXXXXXX:10016 Thanks for your help. Regards. Laurent UK Internet josealf(a)rocketmail.com 03/05/2011 14:52 Veuillez répondre à josealf(a)rocketmail.com Pour Laurent UK, stunnel-users-bounces(a)stunnel.org, stunnel-users(a)stunnel.org cc Objet Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Laurent, Can you post your configuration? For security, You should change the real IPs (but not the ports) before posting. You can check: 1. Does your stunnel client config has client=yes? 2. Does your stunnel server config has client=no 3. Check your packet flow, that is: your accept/connect settings. Regards Jose -----Original Message----- From: laurent.uk(a)bnpparibas.com Sender: stunnel-users-bounces(a)stunnel.org Date: Tue, 3 May 2011 14:16:09 To: <stunnel-users(a)stunnel.org> Subject: [stunnel-users] need help error :SSL3_GET_RECORD:wrong version number with cipher DES-CBC-SHA _______________________________________________ stunnel-users mailing list stunnel-users(a)stunnel.org http://stunnel.mirt.net/mailman/listinfo/stunnel-users This message and any attachments (the "message") is intended solely for the addressees and is confidential. If you receive this message in error, please delete it and immediately notify the sender. Any use not in accord with its purpose, any dissemination or disclosure, either whole or partial, is prohibited except formal approval. The internet can not guarantee the integrity of this message. BNP PARIBAS (and its subsidiaries) shall (will) not therefore be liable for the message if modified. Do not print this message unless it is necessary, consider the environment. --------------------------------------------- Ce message et toutes les pieces jointes (ci-apres le "message") sont etablis a l'intention exclusive de ses destinataires et sont confidentiels. Si vous recevez ce message par erreur, merci de le detruire et d'en avertir immediatement l'expediteur. Toute utilisation de ce message non conforme a sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite, sauf autorisation expresse. L'internet ne permettant pas d'assurer l'integrite de ce message, BNP PARIBAS (et ses filiales) decline(nt) toute responsabilite au titre de ce message, dans l'hypothese ou il aurait ete modifie. N'imprimez ce message que si necessaire, pensez a l'environnement. _______________________________________________ stunnel-users mailing list stunnel-users(a)stunnel.org http://stunnel.mirt.net/mailman/listinfo/stunnel-users

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Re: [stunnel-users] Réf. : Re: Réf. : Re: Réf. : Re: Réf. : Re: need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA
by Jose Alf. 04 May '11

04 May '11

Laurent, Everything looks fine to me. Your were connected to the server using SSLv3 and AES256-SHA ciphers. The zlib error can be ignored. Message "Verify return code: 21 (unable to verify the first certificate)" indicates that openssl s_client was unable to verify the server certificate. You can get rid of this by giving the CAPath in the paremters and making sure the verisign root Ca cert is there. Regards, Jose ________________________________ From: "laurent.uk(a)bnpparibas.com" <laurent.uk(a)bnpparibas.com> To: josealf(a)rocketmail.com Cc: stunnel-users(a)stunnel.org; stunnel-users-bounces(a)stunnel.org Sent: Wed, May 4, 2011 8:36:16 AM Subject: Réf. : Re: Réf. : Re: Réf. : Re: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Jose, thanks you, i use my client certificate but have another error now : 1028202:error:25066067:DSO support routines:DLFCN_LOAD:could not load the shared library:dso_dlfcn.c:162:filename(libz.so): Could not load module . System error: No such file or directory 1028202:error:25070067:DSO support routines:DSO_load:could not load the shared library:dso_lib.c:244: Enter pass phrase for /opt/freeware/etc/stunnel/keystore/crl-3skey.pem: CONNECTED(00000003) SSL_connect:before/connect initialization SSL_connect:SSLv3 write client hello A SSL_connect:SSLv3 read server hello A depth=0 /C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com verify error:num=20:unable to get local issuer certificate verify return:1 depth=0 /C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com verify error:num=27:certificate not trusted verify return:1 depth=0 /C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com verify error:num=21:unable to verify the first certificate verify return:1 SSL_connect:SSLv3 read server certificate A SSL_connect:SSLv3 read server certificate request A SSL_connect:SSLv3 read server done A SSL_connect:SSLv3 write client certificate A SSL_connect:SSLv3 write client key exchange A SSL_connect:SSLv3 write certificate verify A SSL_connect:SSLv3 write change cipher spec A SSL_connect:SSLv3 write finished A SSL_connect:SSLv3 flush data SSL_connect:SSLv3 read finished A --- Certificate chain 0 s:/C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com i:/C=US/O=VeriSign, Inc./OU=VeriSign Trust Network/OU=Terms of use at https://www.verisign.com/rpa (c)10/CN=VeriSign Class 3 Secure Server CA - G3 1 s:/C=ww/O=swift/OU=personalid/OU=bnpafrpp/CN=crl-3skey-ebics-ts i:/O=SWIFT --- Server certificate -----BEGIN CERTIFICATE----- XXXXXXXXXXXXXXXXXX -----END CERTIFICATE----- subject=/C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com issuer=/C=US/O=VeriSign, Inc./OU=VeriSign Trust Network/OU=Terms of use at https://www.verisign.com/rpa (c)10/CN=VeriSign Class 3 Secure Server CA - G3 --- No client certificate CA names sent --- SSL handshake has read 2633 bytes and written 1732 bytes --- New, TLSv1/SSLv3, Cipher is AES256-SHA Server public key is 2048 bit Compression: NONE Expansion: NONE SSL-Session: Protocol : SSLv3 Cipher : AES256-SHA Session-ID: XXXXXXXXXXXXXXXXXX Session-ID-ctx: Master-Key: XXXXXXXXXXXXXXXXXX Key-Arg : None Start Time: 1304515751 Timeout : 7200 (sec) Verify return code: 21 (unable to verify the first certificate) --- Do you know the reason of this error? Maybe i have to add the first certificate file to a specific folder ? Regards, Laurent UK Internet josealf(a)rocketmail.com 04/05/2011 15:09 Pour Laurent UK cc stunnel-users(a)stunnel.org, stunnel-users-bounces(a)stunnel.org Objet Re: Réf. : Re: Réf. : Re: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Laurent, We need to present a client certificate to the server. That's the important part missing. Do that by adding -cert your_cert_filename to the command, like: openssl s_client -ssl3 -state -cert your_client_cert_filename -connect your-stunnel-ip:10443 See http://www.openssl.org/docs/apps/s_client.html Regards, Jose ________________________________ From: "laurent.uk(a)bnpparibas.com" <laurent.uk(a)bnpparibas.com> To: josealf(a)rocketmail.com Cc: stunnel-users(a)stunnel.org; stunnel-users-bounces(a)stunnel.org Sent: Wed, May 4, 2011 6:55:19 AM Subject: Réf. : Re: Réf. : Re: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Jose, thanks you for your response, i use the openssl s_client command but i have the following error : 1499296:error:25066067:DSO support routines:DLFCN_LOAD:could not load the shared library:dso_dlfcn.c:162:filename(libz.so): Could not load module . System error: No such file or directory 1499296:error:25070067:DSO support routines:DSO_load:could not load the shared library:dso_lib.c:244: CONNECTED(00000003) SSL_connect:before/connect initialization SSL_connect:SSLv3 write client hello A SSL_connect:SSLv3 read server hello A depth=0 /C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com verify error:num=20:unable to get local issuer certificate verify return:1 depth=0 /C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com verify error:num=27:certificate not trusted verify return:1 depth=0 /C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com verify error:num=21:unable to verify the first certificate verify return:1 SSL_connect:SSLv3 read server certificate A SSL_connect:SSLv3 read server certificate request A SSL_connect:SSLv3 read server done A SSL3 alert write:warning:no certificate SSL_connect:SSLv3 write client certificate A SSL_connect:SSLv3 write client key exchange A SSL_connect:SSLv3 write change cipher spec A SSL_connect:SSLv3 write finished A SSL_connect:SSLv3 flush data SSL3 alert read:fatal:handshake failure SSL_connect:failed in SSLv3 read finished A 1499296:error:14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert handshake failure:s3_pkt.c:1060:SSL alert number 40 1499296:error:1409E0E5:SSL routines:SSL3_WRITE_BYTES:ssl handshake failure:s3_pkt.c:530: is it normal? Thanks. Regards. Laurent UK Internet josealf(a)rocketmail.com 04/05/2011 13:38 Pour Laurent UK cc stunnel-users(a)stunnel.org, stunnel-users-bounces(a)stunnel.org Objet Re: Réf. : Re: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Laurent, Ideally, you should terminate the SSL connection on your final server. But that's not the problem here. It should work as is. Mosty likely the problem is on the client SSL software you are using to connect to stunnel. The cipher you are trying to use DESC-CBC-SHA works with SSLv3 and TLSv1. Can you force your client to use those protocols? Maybe it is trying to negotiate SSLv2. Also are you sure it is speaking SSL instead of plain text? You can test your connection to stunnel server with openssl s_client command. Example openssl s_client -ssl3 -state -connect your-stunnel-ip:10443 openssl s_client -tls1 -state -connect your-stunnel-ip:10443 if this works, we found the culprit. Regards Jose ________________________________ From: "laurent.uk(a)bnpparibas.com" <laurent.uk(a)bnpparibas.com> To: josealf(a)rocketmail.com Cc: stunnel-users(a)stunnel.org; stunnel-users-bounces(a)stunnel.org Sent: Wed, May 4, 2011 2:05:07 AM Subject: Réf. : Re: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Jose, I use 2 servers in my configuration: the first one who listenning on the port 10443 (where we receive encrypted traffic from software using ssl) and the second one who listenning the port 10016 (where we receive decrypted traffic). The first one receive the encrypted traffic, it decrypted it and send it to the second server that's why i only use the server mode on my fist server. Do you think that i also need to change this configuration? Cordialement, Laurent UK Internet josealf(a)rocketmail.com 03/05/2011 19:18 Pour Laurent UK cc stunnel-users(a)stunnel.org, stunnel-users-bounces(a)stunnel.org Objet Re: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Laurent, I'm not sure you are connecting the dots right. I see an stunnel server configuration. In this case, your stunnel is a front-end to a service you run on host XXXX port 10016. What is that service? Is stunnel running on the same host? Note that If stunnel is not running on the same host with IP XXXX, then you may have some traffic in clear text in your network (from the device running stunnel to the device hosting the service on port 10016). You need a client to connect to the stunnel server. Unless your client support SSL natively, you also should have an stunnel running on your client device with entries like these: client=yes [pestip] accept = 10443 connect = Your-Stunnel-server-IP:10443 In this case your client apps connects locally to port 10443, traffic is encrypted and sent to your server listening on port 10443, where it is decripted and send to IP XXXX port 10016. Regards, Jose ________________________________ From: "laurent.uk(a)bnpparibas.com" <laurent.uk(a)bnpparibas.com> To: josealf(a)rocketmail.com Cc: stunnel-users(a)stunnel.org; stunnel-users-bounces(a)stunnel.org Sent: Tue, May 3, 2011 10:48:11 AM Subject: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Dear Jose, here is the configuration file of my stunnel : ; Sample stunnel configuration file by Michal Trojnara 2002-2006 ; Some options used here may not be adequate for your particular configuration ; Please make sure you understand them (especially the effect of chroot jail) ; Certificate/key is needed in server mode and optional in client mode cert = /opt/freeware/etc/stunnel/ca_nopass.pem foreground = yes syslog = yes ; Protocol version (all, SSLv2, SSLv3, TLSv1) ;sslVersion = SSLv2 sslVersion = all ;ciphers = DES-CBC-SHA ;ciphers = DES-CBC3-SHA:IDEA-CBC-MD5 ; Some security enhancements for UNIX systems - comment them out on Win32 ;chroot = /usr/local/stunnel/var/lib/stunnel ;chroot = /tmp/ ;setuid = root ;setgid = other ; PID is created inside chroot jail pid = /var/adm/stunnel_server_level1.pid ; Some performance tunings socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ;compression = rle ; Workaround for Eudora bug ;options = DONT_INSERT_EMPTY_FRAGMENTS ;options = Options_SSL ; Authentication stuff verify = 3 ; Don't forget to c_rehash CApath ; CApath is located inside chroot jail CApath = /opt/freeware/etc/stunnel/CA_files/ ; It's often easier to use CAfile ;CAfile = /opt/freeware/etc/stunnel/ca.pem ; Don't forget to c_rehash CRLpath ; CRLpath is located inside chroot jail ;CRLpath = /crls ; Alternatively you can use CRLfile ;CRLfile = /usr/local/stunnel/etc/stunnel/crls.pem ; Some debugging stuff useful for troubleshooting debug = 7 ; Use it for client mode client = no ; Service-level configuration [pesitip] accept = 10443 connect = XXXXXXX:10016 Thanks for your help. Regards. Laurent UK Internet josealf(a)rocketmail.com 03/05/2011 14:52 Veuillez répondre à josealf(a)rocketmail.com Pour Laurent UK, stunnel-users-bounces(a)stunnel.org, stunnel-users(a)stunnel.org cc Objet Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Laurent, Can you post your configuration? For security, You should change the real IPs (but not the ports) before posting. You can check: 1. Does your stunnel client config has client=yes? 2. Does your stunnel server config has client=no 3. Check your packet flow, that is: your accept/connect settings. Regards Jose -----Original Message----- From: laurent.uk(a)bnpparibas.com Sender: stunnel-users-bounces(a)stunnel.org Date: Tue, 3 May 2011 14:16:09 To: <stunnel-users(a)stunnel.org> Subject: [stunnel-users] need help error :SSL3_GET_RECORD:wrong version number with cipher DES-CBC-SHA _______________________________________________ stunnel-users mailing list stunnel-users(a)stunnel.org http://stunnel.mirt.net/mailman/listinfo/stunnel-users This message and any attachments (the "message") is intended solely for the addressees and is confidential. If you receive this message in error, please delete it and immediately notify the sender. Any use not in accord with its purpose, any dissemination or disclosure, either whole or partial, is prohibited except formal approval. The internet can not guarantee the integrity of this message. BNP PARIBAS (and its subsidiaries) shall (will) not therefore be liable for the message if modified. Do not print this message unless it is necessary, consider the environment. --------------------------------------------- Ce message et toutes les pieces jointes (ci-apres le "message") sont etablis a l'intention exclusive de ses destinataires et sont confidentiels. Si vous recevez ce message par erreur, merci de le detruire et d'en avertir immediatement l'expediteur. Toute utilisation de ce message non conforme a sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite, sauf autorisation expresse. L'internet ne permettant pas d'assurer l'integrite de ce message, BNP PARIBAS (et ses filiales) decline(nt) toute responsabilite au titre de ce message, dans l'hypothese ou il aurait ete modifie. N'imprimez ce message que si necessaire, pensez a l'environnement.

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Re: [stunnel-users] Réf. : Re: Réf. : Re: Réf. : Re: need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA
by Jose Alf. 04 May '11

04 May '11

Laurent, We need to present a client certificate to the server. That's the important part missing. Do that by adding -cert your_cert_filename to the command, like: openssl s_client -ssl3 -state -cert your_client_cert_filename -connect your-stunnel-ip:10443 See http://www.openssl.org/docs/apps/s_client.html Regards, Jose ________________________________ From: "laurent.uk(a)bnpparibas.com" <laurent.uk(a)bnpparibas.com> To: josealf(a)rocketmail.com Cc: stunnel-users(a)stunnel.org; stunnel-users-bounces(a)stunnel.org Sent: Wed, May 4, 2011 6:55:19 AM Subject: Réf. : Re: Réf. : Re: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Jose, thanks you for your response, i use the openssl s_client command but i have the following error : 1499296:error:25066067:DSO support routines:DLFCN_LOAD:could not load the shared library:dso_dlfcn.c:162:filename(libz.so): Could not load module . System error: No such file or directory 1499296:error:25070067:DSO support routines:DSO_load:could not load the shared library:dso_lib.c:244: CONNECTED(00000003) SSL_connect:before/connect initialization SSL_connect:SSLv3 write client hello A SSL_connect:SSLv3 read server hello A depth=0 /C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com verify error:num=20:unable to get local issuer certificate verify return:1 depth=0 /C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com verify error:num=27:certificate not trusted verify return:1 depth=0 /C=FR/ST=PARIS/L=PARIS/O=BNP PARIBAS/OU=RBIS_PMF202/CN=psp-exp.bnpparibas.com verify error:num=21:unable to verify the first certificate verify return:1 SSL_connect:SSLv3 read server certificate A SSL_connect:SSLv3 read server certificate request A SSL_connect:SSLv3 read server done A SSL3 alert write:warning:no certificate SSL_connect:SSLv3 write client certificate A SSL_connect:SSLv3 write client key exchange A SSL_connect:SSLv3 write change cipher spec A SSL_connect:SSLv3 write finished A SSL_connect:SSLv3 flush data SSL3 alert read:fatal:handshake failure SSL_connect:failed in SSLv3 read finished A 1499296:error:14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert handshake failure:s3_pkt.c:1060:SSL alert number 40 1499296:error:1409E0E5:SSL routines:SSL3_WRITE_BYTES:ssl handshake failure:s3_pkt.c:530: is it normal? Thanks. Regards. Laurent UK Internet josealf(a)rocketmail.com 04/05/2011 13:38 Pour Laurent UK cc stunnel-users(a)stunnel.org, stunnel-users-bounces(a)stunnel.org Objet Re: Réf. : Re: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Laurent, Ideally, you should terminate the SSL connection on your final server. But that's not the problem here. It should work as is. Mosty likely the problem is on the client SSL software you are using to connect to stunnel. The cipher you are trying to use DESC-CBC-SHA works with SSLv3 and TLSv1. Can you force your client to use those protocols? Maybe it is trying to negotiate SSLv2. Also are you sure it is speaking SSL instead of plain text? You can test your connection to stunnel server with openssl s_client command. Example openssl s_client -ssl3 -state -connect your-stunnel-ip:10443 openssl s_client -tls1 -state -connect your-stunnel-ip:10443 if this works, we found the culprit. Regards Jose ________________________________ From: "laurent.uk(a)bnpparibas.com" <laurent.uk(a)bnpparibas.com> To: josealf(a)rocketmail.com Cc: stunnel-users(a)stunnel.org; stunnel-users-bounces(a)stunnel.org Sent: Wed, May 4, 2011 2:05:07 AM Subject: Réf. : Re: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Jose, I use 2 servers in my configuration: the first one who listenning on the port 10443 (where we receive encrypted traffic from software using ssl) and the second one who listenning the port 10016 (where we receive decrypted traffic). The first one receive the encrypted traffic, it decrypted it and send it to the second server that's why i only use the server mode on my fist server. Do you think that i also need to change this configuration? Cordialement, Laurent UK Internet josealf(a)rocketmail.com 03/05/2011 19:18 Pour Laurent UK cc stunnel-users(a)stunnel.org, stunnel-users-bounces(a)stunnel.org Objet Re: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Laurent, I'm not sure you are connecting the dots right. I see an stunnel server configuration. In this case, your stunnel is a front-end to a service you run on host XXXX port 10016. What is that service? Is stunnel running on the same host? Note that If stunnel is not running on the same host with IP XXXX, then you may have some traffic in clear text in your network (from the device running stunnel to the device hosting the service on port 10016). You need a client to connect to the stunnel server. Unless your client support SSL natively, you also should have an stunnel running on your client device with entries like these: client=yes [pestip] accept = 10443 connect = Your-Stunnel-server-IP:10443 In this case your client apps connects locally to port 10443, traffic is encrypted and sent to your server listening on port 10443, where it is decripted and send to IP XXXX port 10016. Regards, Jose ________________________________ From: "laurent.uk(a)bnpparibas.com" <laurent.uk(a)bnpparibas.com> To: josealf(a)rocketmail.com Cc: stunnel-users(a)stunnel.org; stunnel-users-bounces(a)stunnel.org Sent: Tue, May 3, 2011 10:48:11 AM Subject: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Dear Jose, here is the configuration file of my stunnel : ; Sample stunnel configuration file by Michal Trojnara 2002-2006 ; Some options used here may not be adequate for your particular configuration ; Please make sure you understand them (especially the effect of chroot jail) ; Certificate/key is needed in server mode and optional in client mode cert = /opt/freeware/etc/stunnel/ca_nopass.pem foreground = yes syslog = yes ; Protocol version (all, SSLv2, SSLv3, TLSv1) ;sslVersion = SSLv2 sslVersion = all ;ciphers = DES-CBC-SHA ;ciphers = DES-CBC3-SHA:IDEA-CBC-MD5 ; Some security enhancements for UNIX systems - comment them out on Win32 ;chroot = /usr/local/stunnel/var/lib/stunnel ;chroot = /tmp/ ;setuid = root ;setgid = other ; PID is created inside chroot jail pid = /var/adm/stunnel_server_level1.pid ; Some performance tunings socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ;compression = rle ; Workaround for Eudora bug ;options = DONT_INSERT_EMPTY_FRAGMENTS ;options = Options_SSL ; Authentication stuff verify = 3 ; Don't forget to c_rehash CApath ; CApath is located inside chroot jail CApath = /opt/freeware/etc/stunnel/CA_files/ ; It's often easier to use CAfile ;CAfile = /opt/freeware/etc/stunnel/ca.pem ; Don't forget to c_rehash CRLpath ; CRLpath is located inside chroot jail ;CRLpath = /crls ; Alternatively you can use CRLfile ;CRLfile = /usr/local/stunnel/etc/stunnel/crls.pem ; Some debugging stuff useful for troubleshooting debug = 7 ; Use it for client mode client = no ; Service-level configuration [pesitip] accept = 10443 connect = XXXXXXX:10016 Thanks for your help. Regards. Laurent UK Internet josealf(a)rocketmail.com 03/05/2011 14:52 Veuillez répondre à josealf(a)rocketmail.com Pour Laurent UK, stunnel-users-bounces(a)stunnel.org, stunnel-users(a)stunnel.org cc Objet Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Laurent, Can you post your configuration? For security, You should change the real IPs (but not the ports) before posting. You can check: 1. Does your stunnel client config has client=yes? 2. Does your stunnel server config has client=no 3. Check your packet flow, that is: your accept/connect settings. Regards Jose -----Original Message----- From: laurent.uk(a)bnpparibas.com Sender: stunnel-users-bounces(a)stunnel.org Date: Tue, 3 May 2011 14:16:09 To: <stunnel-users(a)stunnel.org> Subject: [stunnel-users] need help error :SSL3_GET_RECORD:wrong version number with cipher DES-CBC-SHA _______________________________________________ stunnel-users mailing list stunnel-users(a)stunnel.org http://stunnel.mirt.net/mailman/listinfo/stunnel-users This message and any attachments (the "message") is intended solely for the addressees and is confidential. If you receive this message in error, please delete it and immediately notify the sender. Any use not in accord with its purpose, any dissemination or disclosure, either whole or partial, is prohibited except formal approval. The internet can not guarantee the integrity of this message. BNP PARIBAS (and its subsidiaries) shall (will) not therefore be liable for the message if modified. Do not print this message unless it is necessary, consider the environment. --------------------------------------------- Ce message et toutes les pieces jointes (ci-apres le "message") sont etablis a l'intention exclusive de ses destinataires et sont confidentiels. Si vous recevez ce message par erreur, merci de le detruire et d'en avertir immediatement l'expediteur. Toute utilisation de ce message non conforme a sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite, sauf autorisation expresse. L'internet ne permettant pas d'assurer l'integrite de ce message, BNP PARIBAS (et ses filiales) decline(nt) toute responsabilite au titre de ce message, dans l'hypothese ou il aurait ete modifie. N'imprimez ce message que si necessaire, pensez a l'environnement.

1 0

Re: [stunnel-users] Réf. : Re: Réf. : Re: need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA
by Jose Alf. 04 May '11

04 May '11

Laurent, Ideally, you should terminate the SSL connection on your final server. But that's not the problem here. It should work as is. Mosty likely the problem is on the client SSL software you are using to connect to stunnel. The cipher you are trying to use DESC-CBC-SHA works with SSLv3 and TLSv1. Can you force your client to use those protocols? Maybe it is trying to negotiate SSLv2. Also are you sure it is speaking SSL instead of plain text? You can test your connection to stunnel server with openssl s_client command. Example openssl s_client -ssl3 -state -connect your-stunnel-ip:10443 openssl s_client -tls1 -state -connect your-stunnel-ip:10443 if this works, we found the culprit. Regards Jose ________________________________ From: "laurent.uk(a)bnpparibas.com" <laurent.uk(a)bnpparibas.com> To: josealf(a)rocketmail.com Cc: stunnel-users(a)stunnel.org; stunnel-users-bounces(a)stunnel.org Sent: Wed, May 4, 2011 2:05:07 AM Subject: Réf. : Re: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Jose, I use 2 servers in my configuration: the first one who listenning on the port 10443 (where we receive encrypted traffic from software using ssl) and the second one who listenning the port 10016 (where we receive decrypted traffic). The first one receive the encrypted traffic, it decrypted it and send it to the second server that's why i only use the server mode on my fist server. Do you think that i also need to change this configuration? Cordialement, Laurent UK Internet josealf(a)rocketmail.com 03/05/2011 19:18 Pour Laurent UK cc stunnel-users(a)stunnel.org, stunnel-users-bounces(a)stunnel.org Objet Re: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Laurent, I'm not sure you are connecting the dots right. I see an stunnel server configuration. In this case, your stunnel is a front-end to a service you run on host XXXX port 10016. What is that service? Is stunnel running on the same host? Note that If stunnel is not running on the same host with IP XXXX, then you may have some traffic in clear text in your network (from the device running stunnel to the device hosting the service on port 10016). You need a client to connect to the stunnel server. Unless your client support SSL natively, you also should have an stunnel running on your client device with entries like these: client=yes [pestip] accept = 10443 connect = Your-Stunnel-server-IP:10443 In this case your client apps connects locally to port 10443, traffic is encrypted and sent to your server listening on port 10443, where it is decripted and send to IP XXXX port 10016. Regards, Jose ________________________________ From: "laurent.uk(a)bnpparibas.com" <laurent.uk(a)bnpparibas.com> To: josealf(a)rocketmail.com Cc: stunnel-users(a)stunnel.org; stunnel-users-bounces(a)stunnel.org Sent: Tue, May 3, 2011 10:48:11 AM Subject: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Dear Jose, here is the configuration file of my stunnel : ; Sample stunnel configuration file by Michal Trojnara 2002-2006 ; Some options used here may not be adequate for your particular configuration ; Please make sure you understand them (especially the effect of chroot jail) ; Certificate/key is needed in server mode and optional in client mode cert = /opt/freeware/etc/stunnel/ca_nopass.pem foreground = yes syslog = yes ; Protocol version (all, SSLv2, SSLv3, TLSv1) ;sslVersion = SSLv2 sslVersion = all ;ciphers = DES-CBC-SHA ;ciphers = DES-CBC3-SHA:IDEA-CBC-MD5 ; Some security enhancements for UNIX systems - comment them out on Win32 ;chroot = /usr/local/stunnel/var/lib/stunnel ;chroot = /tmp/ ;setuid = root ;setgid = other ; PID is created inside chroot jail pid = /var/adm/stunnel_server_level1.pid ; Some performance tunings socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ;compression = rle ; Workaround for Eudora bug ;options = DONT_INSERT_EMPTY_FRAGMENTS ;options = Options_SSL ; Authentication stuff verify = 3 ; Don't forget to c_rehash CApath ; CApath is located inside chroot jail CApath = /opt/freeware/etc/stunnel/CA_files/ ; It's often easier to use CAfile ;CAfile = /opt/freeware/etc/stunnel/ca.pem ; Don't forget to c_rehash CRLpath ; CRLpath is located inside chroot jail ;CRLpath = /crls ; Alternatively you can use CRLfile ;CRLfile = /usr/local/stunnel/etc/stunnel/crls.pem ; Some debugging stuff useful for troubleshooting debug = 7 ; Use it for client mode client = no ; Service-level configuration [pesitip] accept = 10443 connect = XXXXXXX:10016 Thanks for your help. Regards. Laurent UK Internet josealf(a)rocketmail.com 03/05/2011 14:52 Veuillez répondre à josealf(a)rocketmail.com Pour Laurent UK, stunnel-users-bounces(a)stunnel.org, stunnel-users(a)stunnel.org cc Objet Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Laurent, Can you post your configuration? For security, You should change the real IPs (but not the ports) before posting. You can check: 1. Does your stunnel client config has client=yes? 2. Does your stunnel server config has client=no 3. Check your packet flow, that is: your accept/connect settings. Regards Jose -----Original Message----- From: laurent.uk(a)bnpparibas.com Sender: stunnel-users-bounces(a)stunnel.org Date: Tue, 3 May 2011 14:16:09 To: <stunnel-users(a)stunnel.org> Subject: [stunnel-users] need help error :SSL3_GET_RECORD:wrong version number with cipher DES-CBC-SHA _______________________________________________ stunnel-users mailing list stunnel-users(a)stunnel.org http://stunnel.mirt.net/mailman/listinfo/stunnel-users This message and any attachments (the "message") is intended solely for the addressees and is confidential. If you receive this message in error, please delete it and immediately notify the sender. Any use not in accord with its purpose, any dissemination or disclosure, either whole or partial, is prohibited except formal approval. The internet can not guarantee the integrity of this message. BNP PARIBAS (and its subsidiaries) shall (will) not therefore be liable for the message if modified. Do not print this message unless it is necessary, consider the environment. --------------------------------------------- Ce message et toutes les pieces jointes (ci-apres le "message") sont etablis a l'intention exclusive de ses destinataires et sont confidentiels. Si vous recevez ce message par erreur, merci de le detruire et d'en avertir immediatement l'expediteur. Toute utilisation de ce message non conforme a sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite, sauf autorisation expresse. L'internet ne permettant pas d'assurer l'integrite de ce message, BNP PARIBAS (et ses filiales) decline(nt) toute responsabilite au titre de ce message, dans l'hypothese ou il aurait ete modifie. N'imprimez ce message que si necessaire, pensez a l'environnement.

1 0

Re: [stunnel-users] Réf. : Re: need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA
by Jose Alf. 03 May '11

03 May '11

Laurent, I'm not sure you are connecting the dots right. I see an stunnel server configuration. In this case, your stunnel is a front-end to a service you run on host XXXX port 10016. What is that service? Is stunnel running on the same host? Note that If stunnel is not running on the same host with IP XXXX, then you may have some traffic in clear text in your network (from the device running stunnel to the device hosting the service on port 10016). You need a client to connect to the stunnel server. Unless your client support SSL natively, you also should have an stunnel running on your client device with entries like these: client=yes [pestip] accept = 10443 connect = Your-Stunnel-server-IP:10443 In this case your client apps connects locally to port 10443, traffic is encrypted and sent to your server listening on port 10443, where it is decripted and send to IP XXXX port 10016. Regards, Jose ________________________________ From: "laurent.uk(a)bnpparibas.com" <laurent.uk(a)bnpparibas.com> To: josealf(a)rocketmail.com Cc: stunnel-users(a)stunnel.org; stunnel-users-bounces(a)stunnel.org Sent: Tue, May 3, 2011 10:48:11 AM Subject: Réf. : Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Dear Jose, here is the configuration file of my stunnel : ; Sample stunnel configuration file by Michal Trojnara 2002-2006 ; Some options used here may not be adequate for your particular configuration ; Please make sure you understand them (especially the effect of chroot jail) ; Certificate/key is needed in server mode and optional in client mode cert = /opt/freeware/etc/stunnel/ca_nopass.pem foreground = yes syslog = yes ; Protocol version (all, SSLv2, SSLv3, TLSv1) ;sslVersion = SSLv2 sslVersion = all ;ciphers = DES-CBC-SHA ;ciphers = DES-CBC3-SHA:IDEA-CBC-MD5 ; Some security enhancements for UNIX systems - comment them out on Win32 ;chroot = /usr/local/stunnel/var/lib/stunnel ;chroot = /tmp/ ;setuid = root ;setgid = other ; PID is created inside chroot jail pid = /var/adm/stunnel_server_level1.pid ; Some performance tunings socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ;compression = rle ; Workaround for Eudora bug ;options = DONT_INSERT_EMPTY_FRAGMENTS ;options = Options_SSL ; Authentication stuff verify = 3 ; Don't forget to c_rehash CApath ; CApath is located inside chroot jail CApath = /opt/freeware/etc/stunnel/CA_files/ ; It's often easier to use CAfile ;CAfile = /opt/freeware/etc/stunnel/ca.pem ; Don't forget to c_rehash CRLpath ; CRLpath is located inside chroot jail ;CRLpath = /crls ; Alternatively you can use CRLfile ;CRLfile = /usr/local/stunnel/etc/stunnel/crls.pem ; Some debugging stuff useful for troubleshooting debug = 7 ; Use it for client mode client = no ; Service-level configuration [pesitip] accept = 10443 connect = XXXXXXX:10016 Thanks for your help. Regards. Laurent UK Internet josealf(a)rocketmail.com 03/05/2011 14:52 Veuillez répondre à josealf(a)rocketmail.com Pour Laurent UK, stunnel-users-bounces(a)stunnel.org, stunnel-users(a)stunnel.org cc Objet Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Laurent, Can you post your configuration? For security, You should change the real IPs (but not the ports) before posting. You can check: 1. Does your stunnel client config has client=yes? 2. Does your stunnel server config has client=no 3. Check your packet flow, that is: your accept/connect settings. Regards Jose -----Original Message----- From: laurent.uk(a)bnpparibas.com Sender: stunnel-users-bounces(a)stunnel.org Date: Tue, 3 May 2011 14:16:09 To: <stunnel-users(a)stunnel.org> Subject: [stunnel-users] need help error :SSL3_GET_RECORD:wrong version number with cipher DES-CBC-SHA _______________________________________________ stunnel-users mailing list stunnel-users(a)stunnel.org http://stunnel.mirt.net/mailman/listinfo/stunnel-users This message and any attachments (the "message") is intended solely for the addressees and is confidential. If you receive this message in error, please delete it and immediately notify the sender. Any use not in accord with its purpose, any dissemination or disclosure, either whole or partial, is prohibited except formal approval. The internet can not guarantee the integrity of this message. BNP PARIBAS (and its subsidiaries) shall (will) not therefore be liable for the message if modified. Do not print this message unless it is necessary, consider the environment. --------------------------------------------- Ce message et toutes les pieces jointes (ci-apres le "message") sont etablis a l'intention exclusive de ses destinataires et sont confidentiels. Si vous recevez ce message par erreur, merci de le detruire et d'en avertir immediatement l'expediteur. Toute utilisation de ce message non conforme a sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite, sauf autorisation expresse. L'internet ne permettant pas d'assurer l'integrite de ce message, BNP PARIBAS (et ses filiales) decline(nt) toute responsabilite au titre de ce message, dans l'hypothese ou il aurait ete modifie. N'imprimez ce message que si necessaire, pensez a l'environnement.

1 0

Re: [stunnel-users] Réf. : Re: need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA
by Leandro Avila 03 May '11

03 May '11

Hi, If you have control of both ends of the connection make sure your SSL version is consistent on both sides. I would not recomend using sslVersion = all Either set it to SSLv3 or TLSv1 DES-CBC-SHA is supported under those However, judging for the cipher you are choosing I assume you might be dealing with a legacy application and you might not have access to both ends of the connection. I would try setting only one version at the time and moving down from TLSv1, SSLv3 and SSLv2 sslVersion = ciphers = DES-CBC-SHA Cheers ----------------- Leandro Avila ________________________________ From: "laurent.uk(a)bnpparibas.com" <laurent.uk(a)bnpparibas.com> To: josealf(a)rocketmail.com Cc: stunnel-users(a)stunnel.org; stunnel-users-bounces(a)stunnel.org Sent: Tuesday, May 3, 2011 10:48 AM Subject: [stunnel-users] Réf. : Re: need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Dear Jose, here is the configuration file of my stunnel : ; Sample stunnel configuration file by Michal Trojnara 2002-2006 ; Some options used here may not be adequate for your particular configuration ; Please make sure you understand them (especially the effect of chroot jail) ; Certificate/key is needed in server mode and optional in client mode cert = /opt/freeware/etc/stunnel/ca_nopass.pem foreground = yes syslog = yes ; Protocol version (all, SSLv2, SSLv3, TLSv1) ;sslVersion = SSLv2 sslVersion = all ;ciphers = DES-CBC-SHA ;ciphers = DES-CBC3-SHA:IDEA-CBC-MD5 ; Some security enhancements for UNIX systems - comment them out on Win32 ;chroot = /usr/local/stunnel/var/lib/stunnel ;chroot = /tmp/ ;setuid = root ;setgid = other ; PID is created inside chroot jail pid = /var/adm/stunnel_server_level1.pid ; Some performance tunings socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ;compression = rle ; Workaround for Eudora bug ;options = DONT_INSERT_EMPTY_FRAGMENTS ;options = Options_SSL ; Authentication stuff verify = 3 ; Don't forget to c_rehash CApath ; CApath is located inside chroot jail CApath = /opt/freeware/etc/stunnel/CA_files/ ; It's often easier to use CAfile ;CAfile = /opt/freeware/etc/stunnel/ca.pem ; Don't forget to c_rehash CRLpath ; CRLpath is located inside chroot jail ;CRLpath = /crls ; Alternatively you can use CRLfile ;CRLfile = /usr/local/stunnel/etc/stunnel/crls.pem ; Some debugging stuff useful for troubleshooting debug = 7 ; Use it for client mode client = no ; Service-level configuration [pesitip] accept = 10443 connect = XXXXXXX:10016 Thanks for your help. Regards. Laurent UK Internet josealf(a)rocketmail.com 03/05/2011 14:52 Veuillez répondre à josealf(a)rocketmail.com Pour Laurent UK, stunnel-users-bounces(a)stunnel.org, stunnel-users(a)stunnel.org cc Objet Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA Laurent, Can you post your configuration? For security, You should change the real IPs (but not the ports) before posting. You can check: 1. Does your stunnel client config has client=yes? 2. Does your stunnel server config has client=no 3. Check your packet flow, that is: your accept/connect settings. Regards Jose -----Original Message----- From: laurent.uk(a)bnpparibas.com Sender: stunnel-users-bounces(a)stunnel.org Date: Tue, 3 May 2011 14:16:09 To: <stunnel-users(a)stunnel.org> Subject: [stunnel-users] need help error :SSL3_GET_RECORD:wrong version number with cipher DES-CBC-SHA _______________________________________________ stunnel-users mailing list stunnel-users(a)stunnel.org http://stunnel.mirt.net/mailman/listinfo/stunnel-users This message and any attachments (the "message") is intended solely for the addressees and is confidential. If you receive this message in error, please delete it and immediately notify the sender. Any use not in accord with its purpose, any dissemination or disclosure, either whole or partial, is prohibited except formal approval. The internet can not guarantee the integrity of this message. BNP PARIBAS (and its subsidiaries) shall (will) not therefore be liable for the message if modified. Do not print this message unless it is necessary, consider the environment. --------------------------------------------- Ce message et toutes les pieces jointes (ci-apres le "message") sont etablis a l'intention exclusive de ses destinataires et sont confidentiels. Si vous recevez ce message par erreur, merci de le detruire et d'en avertir immediatement l'expediteur. Toute utilisation de ce message non conforme a sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite, sauf autorisation expresse. L'internet ne permettant pas d'assurer l'integrite de ce message, BNP PARIBAS (et ses filiales) decline(nt) toute responsabilite au titre de ce message, dans l'hypothese ou il aurait ete modifie. N'imprimez ce message que si necessaire, pensez a l'environnement. _______________________________________________ stunnel-users mailing list stunnel-users(a)stunnel.org http://stunnel.mirt.net/mailman/listinfo/stunnel-users

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stunnel 4.36 released
by Michal Trojnara 03 May '11

03 May '11

Dear Users, Version 4.36 of stunnel was released. The ChangeLog entry: Version 4.36, 2011.05.03, urgency: LOW: * New features - Updated Win32 DLLs for OpenSSL 1.0.0d. - Dynamic memory management for strings manipulation: no more static STRLEN limit, lower stack footprint. - Strict public key comparison added for "verify = 3" certificate checking mode (thx to Philipp Hartwig). - Backlog parameter of listen(2) changed from 5 to SOMAXCONN: improved behavior on heavy load. - Example tools/stunnel.service file added for systemd service manager. * Bugfixes - Missing pthread_attr_destroy() added to fix memory leak (thx to Paul Allex and Peter Pentchev). - Fixed the incorrect way of setting FD_CLOEXEC flag. - Fixed --enable-libwrap option of ./configure script. - /opt/local added to OpenSSL search path for MacPorts compatibility. - Workaround implemented for signal handling on MacOS X. - A trivial bug fixed in the stunnel.init script. - Retry implemented on EAI_AGAIN error returned by resolver calls. Home page: http://www.stunnel.org/ Download: ftp://ftp.stunnel.org/stunnel/ SHA-256 hash for stunnel-4.36.tar.gz: 3483fc2011e8a9d2614a93a9dbf7eabf405044df3566f29144fe2d1dd37a35f5 Best regards, Mike

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Re: [stunnel-users] need help error :SSL3_GET_RECORD:wrong versionnumber with cipher DES-CBC-SHA
by josealf＠rocketmail.com 03 May '11

03 May '11

Laurent, Can you post your configuration? For security, You should change the real IPs (but not the ports) before posting. You can check: 1. Does your stunnel client config has client=yes? 2. Does your stunnel server config has client=no 3. Check your packet flow, that is: your accept/connect settings. Regards Jose -----Original Message----- From: laurent.uk(a)bnpparibas.com Sender: stunnel-users-bounces(a)stunnel.org Date: Tue, 3 May 2011 14:16:09 To: <stunnel-users(a)stunnel.org> Subject: [stunnel-users] need help error :SSL3_GET_RECORD:wrong version number with cipher DES-CBC-SHA _______________________________________________ stunnel-users mailing list stunnel-users(a)stunnel.org http://stunnel.mirt.net/mailman/listinfo/stunnel-users

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Re: [stunnel-users] Temporary failure in name resolution (Michal Trojnara)
by Phil Wieland 29 Apr '11

29 Apr '11

I attach two strace reports, strace-good shows a successful use, strace-bad shows it failing after a reboot. In both cases I just telnet to localhost 55899, which gives the smtp server's banner in the good case. ltrace craps out with a [pid 1107] +++ killed by SIGTRAP +++ in both cases, and doesn't show anything useful. These are WITHOUT the suggested patch, I am not really equipped for building on this server. Phil

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Re: [stunnel-users] Réf. : Re: Tr : Réf. : Re: Need some informations about stunnel(AC,?crl ?files)
by Ludolf Holzheid 29 Apr '11

29 Apr '11

On Fri, 2011-04-29 15:39:45 +0200, laurent.uk(a)bnpparibas.com wrote: > Dear Ludolf thank you for your response. > > I have another question. > > Is it possible to have 2 stunnel running on the same server? > > 1 stunnel with no client's certificate verification (verify = 0) with a > specific port > > and 1 stunnel with client's certificate verification (verify = 3) with > other specific port You may run as many instances of stunnel as you like, as long as they don't share listening ports (accept=...) or pid files (pid=...). Ludolf -- --------------------------------------------------------------- Ludolf Holzheid Tel: +49 621 339960 Bihl+Wiedemann GmbH Fax: +49 621 3392239 Floßwörthstraße 41 e-mail: lholzheid(a)bihl-wiedemann.de D-68199 Mannheim, Germany ---------------------------------------------------------------

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Re: [stunnel-users] Tr : Réf. : Re: Need some informations about stunnel (AC,?crl?files)
by Ludolf Holzheid 28 Apr '11

28 Apr '11

On Thu, 2011-04-28 17:06:28 +0200, laurent.uk(a)bnpparibas.com wrote: > Dear Ludolf i need some help with the verify option. > > I want to check the certificate client in my machine and also check if the > certificate's client is in the crl list. > > You said that " > If you are using verify=3, stunnel checks client certificates against > the set of certificates in CApath or CAfile, not against CAs and CRLs." > > Is it possible to check client certificates with certificates in CaPath > and also with CRls? Laurent, By installing a certificate (to CApath or CAfile), you express your trust in the certificate. For the client certificates, you could either o implicitly trust all certificates signed by an installed CA certificate and not yet revoked (verify=2), or o explicitly trust installed client certificates (verify=3). In both cases, all installed certificates are fully trusted. Cross-checking a trusted (client-) certificate against an other trusted (CA-) certificate does not raise security or trustworthiness. In order to revoke a client certificate in verify=3 mode, just uninstall it. Ludolf -- --------------------------------------------------------------- Ludolf Holzheid Tel: +49 621 339960 Bihl+Wiedemann GmbH Fax: +49 621 3392239 Floßwörthstraße 41 e-mail: lholzheid(a)bihl-wiedemann.de D-68199 Mannheim, Germany ---------------------------------------------------------------

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Delay before sending server hello
by Dan Price 28 Apr '11

28 Apr '11

I am using stunnel to accept TLS connections. I'm opening eight connections at virtually the same time, and occasionally see that for one of the connections, the handshake does not complete - stunnel does not send the server hello, and the client usually resets the connection. I did manage to capture one instance where stunnel sends the server hello, but it is delayed by over a minute. I upgraded to version 4.35, and I see the same behavior. I set debug=debug, and captured what I think are the relevant logs (through write server hello). I kept the logs for the successful connection (59924) that came in after the failed one (59923). Apr 27 13:21:22 cm stunnel: LOG7[10357:1431918272]: local socket: FD=15 allocated (non-blocking mode) Apr 27 13:21:22 cm stunnel: LOG7[10357:1431918272]: Service msrp accepted FD=15 from ::ffff:10.50.2.11:59923 Apr 27 13:21:22 cm stunnel: LOG7[10357:1431918272]: local socket: FD=16 allocated (non-blocking mode) Apr 27 13:21:22 cm stunnel: LOG7[10357:1431918272]: Service msrp accepted FD=16 from ::ffff:10.50.2.11:59924 Apr 27 13:21:22 cm stunnel: LOG7[10357:1431989136]: Service msrp started Apr 27 13:21:22 cm stunnel: LOG7[10357:1431989136]: Waiting for a libwrap process Apr 27 13:21:22 cm stunnel: LOG7[10357:1433471888]: Service msrp started Apr 27 13:21:22 cm stunnel: LOG7[10357:1433471888]: Waiting for a libwrap process Apr 27 13:21:22 cm stunnel: LOG7[10357:1433471888]: Acquired libwrap process #1 Apr 27 13:21:22 cm stunnel: LOG7[10357:1433471888]: Releasing libwrap process #1 Apr 27 13:21:22 cm stunnel: LOG7[10357:1433471888]: Released libwrap process #1 Apr 27 13:21:22 cm stunnel: LOG7[10357:1433471888]: Service msrp permitted by libwrap from ::ffff:10.50.2.11:59924 Apr 27 13:21:22 cm stunnel: LOG5[10357:1433471888]: Service msrp accepted connection from ::ffff:10.50.2.11:59924 Apr 27 13:21:22 cm stunnel: LOG7[10357:1433471888]: SSL state (accept): before/accept initialization Apr 27 13:21:22 cm stunnel: LOG7[10357:1433471888]: SSL state (accept): SSLv3 read client hello A Apr 27 13:21:22 cm stunnel: LOG7[10357:1433471888]: SSL state (accept): SSLv3 write server hello A Apr 27 13:22:38 cm stunnel: LOG7[10357:1431989136]: Acquired libwrap process #4 Apr 27 13:22:38 cm stunnel: LOG7[10357:1431989136]: Releasing libwrap process #4 Apr 27 13:22:38 cm stunnel: LOG7[10357:1431989136]: Released libwrap process #4 Apr 27 13:22:38 cm stunnel: LOG7[10357:1431989136]: Service msrp permitted by libwrap from ::ffff:10.50.2.11:59923 Apr 27 13:22:38 cm stunnel: LOG5[10357:1431989136]: Service msrp accepted connection from ::ffff:10.50.2.11:59923 Apr 27 13:22:38 cm stunnel: LOG7[10357:1431989136]: SSL state (accept): before/accept initialization Apr 27 13:22:38 cm stunnel: LOG7[10357:1431989136]: SSL state (accept): SSLv3 read client hello A Apr 27 13:22:38 cm stunnel: LOG7[10357:1431989136]: SSL state (accept): SSLv3 write server hello A Thanks, Dan

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Does stunnel support startTLS?
by Markus Borst 28 Apr '11

28 Apr '11

Stunnel supports encryption in the "old" ssl style extra port configuration (i.e. imaps on port 993) where the encryption is negotiated immediately upon start of the connection. Does stunnel also support the startTLS method? i.e. a clear text connection is established (imap on port 143) and one of the first imap commands is startTLS, which negotiates the encryption and protects the connection from that time onwards. I know that supporting startTLS is a lot harder, since it means sniffing commands in the higher level protocol, but we need it nevertheless. (In fact, our imap server does support startTLS, but it does _not_ support importing an external certificate, which is why I'm looking for an external solution.) From reading the documentation I'm not sure whether stunnel supports startTLS, there are a few option descriptions which might point to startTLS, but I'm not sure. Anybody knows the definite answer? Greetings Markus Borst -- TU Darmstadt Hochschulrechenzentrum (HRZ) Markus Borst Adresse: Petersenstrasse 30, 64287 Darmstadt, Germany Tel.: 06151/16-2056 Email: M.Borst(a)hrz.tu-darmstadt.de

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Re: [stunnel-users] Stunnel stuck at SSL state (accept): before/accept initialization
by Jack Liu 28 Apr '11

28 Apr '11

Thx for continuing reply my msg, Yes, there is var/log/messages Inside there only has some iptables log, FTP, SMTP application log and nothing else. I am positive that this problem is not cause by iptables, becuase I tried with iptables off. Nothing else related to stunnel is found in that folder. Any other suggestions? Mr. Jack > From: sunyucong(a)gmail.com > Date: Mon, 25 Apr 2011 20:00:30 -0700 > Subject: Re: [stunnel-users] Stunnel stuck at SSL state (accept): before/accept initialization > To: jackliu92(a)hotmail.com > CC: stunnel-users(a)stunnel.org > > I guess in centos that's /var/log/messages > but in general, you should probably check everything in /var/log to make sure. > > On Mon, Apr 25, 2011 at 5:38 PM, Jack Liu <jackliu92(a)hotmail.com> wrote: > > Thank you for helping, but both logs r not presented in my var/log/ dir. Any > > other suggestions? > > > > > > Mr. Jack > > > > > > > > > > > >> From: sunyucong(a)gmail.com > >> Date: Mon, 25 Apr 2011 16:25:20 -0700 > >> Subject: Re: [stunnel-users] Stunnel stuck at SSL state (accept): > >> before/accept initialization > >> To: jackliu92(a)hotmail.com > >> CC: stunnel-users(a)stunnel.org > >> > >> Are you sure that's entire log? check /var/log/daemons.log and > >> syslog.log as well. > >> > >> On Sun, Apr 24, 2011 at 1:30 AM, Jack Liu <jackliu92(a)hotmail.com> wrote: > >> > It anyone knows how to fix Stunnel stuck at SSL state (accept): > >> > before/accept initialization??? > >> > > >> > Here is the log: > >> > > >> > ----------------------------------------------------------------------------------------------------------- > >> > [root@vps1 ~]#stunnel /etc/stunnel/stunnel.conf > >> > 2011.04.24 02:25:13 LOG7[32174:3085993680]: Snagged 64 random bytes from > >> > /root/.rnd > >> > 2011.04.24 02:25:13 LOG7[32174:3085993680]: Wrote 1024 new random bytes > >> > to > >> > /root/.rnd > >> > 2011.04.24 02:25:13 LOG7[32174:3085993680]: RAND_status claims > >> > sufficient > >> > entropy for the PRNG > >> > 2011.04.24 02:25:13 LOG6[32174:3085993680]: PRNG seeded successfully > >> > 2011.04.24 02:25:13 LOG7[32174:3085993680]: Certificate: > >> > /etc/stunnel/stunnel.pem > >> > 2011.04.24 02:25:13 LOG7[32174:3085993680]: Key file: > >> > /etc/stunnel/stunnel.pem > >> > 2011.04.24 02:25:13 LOG7[32174:3085993680]: Verify directory set to > >> > /etc/stunnel/CA > >> > 2011.04.24 02:25:13 LOG7[32174:3085993680]: CRL directory set to > >> > /etc/stunnel/CRL > >> > 2011.04.24 02:25:13 LOG7[32174:3085993680]: SSL context initialized for > >> > service 3proxy > >> > 2011.04.24 02:25:13 LOG5[32174:3085993680]: stunnel 4.15 on > >> > i686-redhat-linux-gnu with OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008 > >> > 2011.04.24 02:25:13 LOG5[32174:3085993680]: Threading:PTHREAD SSL:ENGINE > >> > Sockets:POLL,IPv6 Auth:LIBWRAP > >> > 2011.04.24 02:25:13 LOG6[32174:3085993680]: file ulimit = 1024 (can be > >> > changed with 'ulimit -n') > >> > 2011.04.24 02:25:13 LOG6[32174:3085993680]: poll() used - no FD_SETSIZE > >> > limit for file descriptors > >> > 2011.04.24 02:25:13 LOG5[32174:3085993680]: 500 clients allowed > >> > 2011.04.24 02:25:13 LOG7[32174:3085993680]: FD 3 in non-blocking mode > >> > 2011.04.24 02:25:13 LOG7[32174:3085993680]: FD 4 in non-blocking mode > >> > 2011.04.24 02:25:13 LOG7[32174:3085993680]: FD 5 in non-blocking mode > >> > 2011.04.24 02:25:13 LOG7[32174:3085993680]: SO_REUSEADDR option set on > >> > accept socket > >> > 2011.04.24 02:25:13 LOG7[32174:3085993680]: 3proxy bound to > >> > 0.0.0.0:30001 > >> > 2011.04.24 02:25:13 LOG7[32174:3085993680]: Created pid file > >> > /var/run/stunnel.pid > >> > 2011.04.24 02:25:20 LOG7[32174:3085993680]: 3proxy accepted FD=6 from > >> > xx.xxx.xxx.xx:41165 > >> > 2011.04.24 02:25:20 LOG7[32174:3085990800]: 3proxy started > >> > 2011.04.24 02:25:20 LOG7[32174:3085990800]: FD 6 in non-blocking mode > >> > 2011.04.24 02:25:20 LOG7[32174:3085990800]: FD 7 in non-blocking mode > >> > 2011.04.24 02:25:20 LOG7[32174:3085990800]: FD 8 in non-blocking mode > >> > 2011.04.24 02:25:20 LOG7[32174:3085993680]: Cleaning up the signal pipe > >> > 2011.04.24 02:25:20 LOG6[32174:3085993680]: Child process 32176 finished > >> > with code 0 > >> > 2011.04.24 02:25:20 LOG7[32174:3085990800]: Connection from > >> > xx.xxx.xxx.xx:41165 permitted by libwrap > >> > 2011.04.24 02:25:20 LOG5[32174:3085990800]: 3proxy connected from > >> > xx.xxx.xxx.xx:41165 > >> > 2011.04.24 02:25:20 LOG7[32174:3085990800]: SSL state (accept): > >> > before/accept initialization <-----------------------Stuck here > >> > forever!!! > >> > 2011.04.24 02:25:22 LOG3[32174:3085990800]: SSL_accept: Peer suddenly > >> > disconnected > >> > 2011.04.24 02:25:22 LOG5[32174:3085990800]: Connection reset: 0 bytes > >> > sent > >> > to SSL, 0 bytes sent to socket > >> > 2011.04.24 02:25:22 LOG7[32174:3085990800]: 3proxy finished (0 left) > >> > 2011.04.24 02:25:25 LOG3[32174:3085993680]: Received signal 2; > >> > terminating > >> > 2011.04.24 02:25:25 LOG7[32174:3085993680]: removing pid file > >> > /var/run/stunnel.pid > >> > [root@vps1 ~]# > >> > > >> > ----------------------------------------------------------------------------------------------------------- > >> > stunnel.conf: > >> > cert = /etc/stunnel/stunnel.pem > >> > key = /etc/stunnel/stunnel.pem > >> > CApath = /etc/stunnel/CA > >> > CRLpath = /etc/stunnel/CRL > >> > debug = 7 > >> > foreground = yes > >> > verify = 1 > >> > # > >> > [3proxy] > >> > accept = 30001 > >> > connect = 127.0.0.1:33135 > >> > > >> > ----------------------------------------------------------------------------------------------------------- > >> > > >> > I am hosting with CentOS 5.5, and installed Stunnel via yum. > >> > Planning to use it with 3Proxy. However I experience the problem above, > >> > can > >> > someone please help with that? > >> > Thank you very much! > >> > > >> > > >> > > >> > Mr. Jack > >> > > >> > _______________________________________________ > >> > stunnel-users mailing list > >> > stunnel-users(a)stunnel.org > >> > http://stunnel.mirt.net/mailman/listinfo/stunnel-users > >> > > >> > > >

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Patch to enhance verify=3 with SHA-1 check
by Philipp Hartwig 27 Apr '11

27 Apr '11

As indicated in a previous mail to this list I was surprised by the following behavior: With "verify=3" stunnel doesn't compare the peer's certificate with the locally installed certificate for actual equality but it only checks whether they have the same subject. The recent Comodo incident[1] has shown that it is not impossible to get a certificate which matches the subject of the certificate of some interesting server and is signed by a trusted CA. That's why I was interested in a stricter form of verification (at least in client mode). I have attached a small patch, derived from code in the file "mutt_ssl.c" of the Mutt[2] mail client, which adds a check for equality of SHA-1 hashes to the "verify=3" certificate check. I mainly wrote it for personal use but maybe someone else will find it useful or has some comments. Regards, Philipp [1] http://blog.mozilla.com/security/2011/03/25/comodo-certificate-issue-follow… [2] http://www.mutt.org/

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Re: [stunnel-users] Réf. : Re: Need some informations about stunnel (AC,?crl?files)
by Ludolf Holzheid 27 Apr '11

27 Apr '11

On Wed, 2011-04-27 13:06:43 +0200, laurent.uk(a)bnpparibas.com wrote: > Dear ludolf thanks you for your response. > > So if i use verify = 3, the crl files is useless. > > I went to the url http://crl.verisign.com , and there were a lot of files. > > what are the files corresponding of the crl list please? Those with the ".crl" extension, I suppose ;-) You'll need to look for the CRLs matching the certificates you want to use. Note, there may be CRLs for intermediate certificates too. At least (the randomly selected) Class3SoftwarePublishers.crl seems to be in DES format, you might have to convert it to PEM for use with stunnel. Ludolf -- --------------------------------------------------------------- Ludolf Holzheid Tel: +49 621 339960 Bihl+Wiedemann GmbH Fax: +49 621 3392239 Floßwörthstraße 41 e-mail: lholzheid(a)bihl-wiedemann.de D-68199 Mannheim, Germany ---------------------------------------------------------------

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Re: [stunnel-users] Need some informations about stunnel (AC, crl files)
by Ludolf Holzheid 27 Apr '11

27 Apr '11

On Wed, 2011-04-27 10:47:42 +0200, laurent.uk(a)bnpparibas.com wrote: > Hi all, > > I need some informations about stunnel. > > First, when the client's software use a certificate signed by a CA like > veriSign. Did we need to add the certificates of this CA? or it is not > neccessary because it is a knowned CA. If you are using verify=3, stunnel checks client certificates against the set of certificates in CApath or CAfile, not against CAs and CRLs. In order to have stunnel check the certificate chain of client certificates, you'll have to use verify=2. For that, stunnel needs access to the CA's root certificate and the intermediate certificates (i.e. they have to be locally installed to CApath/CAfile). > Secondally, i need to download and update the crl files, and also (if it's > possible) the certificates of knowed CA. How can i do that in my AIX's > machine please? This depends on the way the CA publishes its certificates and CRLs. For VeriSign, my first idea is to use wget to download them from http://crl.verisign.com. There may be better ways, though. And I don't know AIX. Ludolf -- --------------------------------------------------------------- Ludolf Holzheid Tel: +49 621 339960 Bihl+Wiedemann GmbH Fax: +49 621 3392239 Floßwörthstraße 41 e-mail: lholzheid(a)bihl-wiedemann.de D-68199 Mannheim, Germany ---------------------------------------------------------------

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Re: [stunnel-users] need help for the error VERIFY ERROR ONLY MY: no cert fo (verify = 3)
by Ludolf Holzheid 26 Apr '11

26 Apr '11

On Tue, 2011-04-26 17:00:06 +0200, laurent.uk(a)bnpparibas.com wrote: > Hi, > > I tried to configure my STUNNEL server, with my client's software test but > i always have the the following error : > > 2011.04.26 14:23:09 LOG4[1683500:258]: VERIFY ERROR ONLY MY: no cert for > /C=ww/O=swift/OU=personalid/OU=bnpafrpp/CN=crl-3skey-ebics-ts > > [..] > > I tried to extract the public certificate from the crl-3skey-ebics-ts and > add it in the keystore and in the folder /usr/local/ssl/certs/trusted/ > > [..] > > verify = 3 > ; Don't forget to c_rehash CApath > ; CApath is located inside chroot jail > ;CApath = /opt/freeware/etc/stunnel/ > ; It's often easier to use CAfile > CAfile = /opt/freeware/etc/stunnel/ca.pem > ; Don't forget to c_rehash CRLpath Laurent, If you specify a CAfile in 'verify=3' mode, you need to add the client's certificates to this file. You could also store the client's certificates in PEM format files (one file per certificate) in a directory stunnel can reach at connection time. You have to specify the name of this directory as CApath then (in contrast to CAfile), and you'll have to run c_rehash on this directory. Ludolf -- --------------------------------------------------------------- Ludolf Holzheid Tel: +49 621 339960 Bihl+Wiedemann GmbH Fax: +49 621 3392239 Floßwörthstraße 41 e-mail: lholzheid(a)bihl-wiedemann.de D-68199 Mannheim, Germany ---------------------------------------------------------------

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Temporary failure in name resolution
by Phil Wieland 26 Apr '11

26 Apr '11

I think I've done something stupid but I can't work out what. I'm running stunnel4 version 4.29 on an Ubuntu server box, using it to tunnel smtp connections to my ISP's mail server. Everything works perfectly until I reboot the server, when it stops working. In syslog, I get: Apr 24 15:56:11 friedbread stunnel: LOG5[1101:3074997104]: ssmtp accepted connection from 127.0.0.1:50681 Apr 24 15:56:11 friedbread stunnel: LOG3[1101:3074997104]: Error resolving 'smtp.blueyonder.co.uk': Temporary failure in name resolution (EAI_AGAIN) Apr 24 15:56:11 friedbread stunnel: LOG3[1101:3074997104]: No host resolved Apr 24 15:56:11 friedbread stunnel: LOG5[1101:3074997104]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket every time I attempt to send mail. I can ping smtp.blueyonder.co.uk no problem. The problem persists until I restart stunnel4, after which it works perfectly for weeks on end. Looking at syslog for boot time, it looks like stunnel tries to resolve smtp.blueyonder.co.uk as soon as it starts, but dhcp hasn't finished at this time so it fails. It seems to cache something from the failure and not try again? Even though the error is "Temporary". All advice gratefully received. Phil Wieland Liverpool, UK. ###@friedbread:~$ stunnel4 -version stunnel 4.29 on i486-pc-linux-gnu with OpenSSL 0.9.8k 25 Mar 2009 Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv6 Auth:LIBWRAP Global options debug = 5 pid = /var/run/stunnel4.pid RNDbytes = 64 RNDfile = /dev/urandom RNDoverwrite = yes Service-level options cert = /etc/stunnel/stunnel.pem ciphers = AES:ALL:!aNULL:!eNULL:+RC4:@STRENGTH key = /etc/stunnel/stunnel.pem session = 300 seconds stack = 65536 bytes sslVersion = SSLv3 for client, all for server TIMEOUTbusy = 300 seconds TIMEOUTclose = 60 seconds TIMEOUTconnect = 10 seconds TIMEOUTidle = 43200 seconds verify = none ###@friedbread:~$ cat /etc/stunnel/stunnel.conf ; Sample stunnel configuration file by Michal Trojnara 2002-2009 ; Some options used here may not be adequate for your particular configuration ; Please make sure you understand them (especially the effect of the chroot jail) ; Certificate/key is needed in server mode and optional in client mode cert = /etc/ssl/certs/stunnel.pem ;key = /etc/ssl/certs/stunnel.pem ; Protocol version (all, SSLv2, SSLv3, TLSv1) sslVersion = SSLv3 ; Some security enhancements for UNIX systems - comment them out on Win32 chroot = /var/lib/stunnel4/ setuid = stunnel4 setgid = stunnel4 ; PID is created inside the chroot jail pid = /stunnel4.pid ; Some performance tunings socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ;compression = zlib ; Workaround for Eudora bug ;options = DONT_INSERT_EMPTY_FRAGMENTS ; Authentication stuff ;verify = 2 ; Don't forget to c_rehash CApath ; CApath is located inside chroot jail ;CApath = /certs ; It's often easier to use CAfile ;CAfile = /etc/stunnel/certs.pem ; Don't forget to c_rehash CRLpath ; CRLpath is located inside chroot jail ;CRLpath = /crls ; Alternatively you can use CRLfile ;CRLfile = /etc/stunnel/crls.pem ; Some debugging stuff useful for troubleshooting ;debug = 7 ;output = /var/log/stunnel4/stunnel.log ; Use it for client mode client = yes ; Service-level configuration ;[pop3s] ;accept = 995 ;connect = 110 ;[imaps] ;accept = 993 ;connect = 143 [ssmtp] accept = 55899 connect = smtp.blueyonder.co.uk:465 ;[https] ;accept = 443 ;connect = 80 ;TIMEOUTclose = 0 ; vim:ft=dosini ###@friedbread:~$

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Re: [stunnel-users] Stunnel stuck at SSL state (accept): before/accept initialization
by Jack Liu 26 Apr '11

26 Apr '11

Thank you for helping, but both logs r not presented in my var/log/ dir. Any other suggestions? Mr. Jack > From: sunyucong(a)gmail.com > Date: Mon, 25 Apr 2011 16:25:20 -0700 > Subject: Re: [stunnel-users] Stunnel stuck at SSL state (accept): before/accept initialization > To: jackliu92(a)hotmail.com > CC: stunnel-users(a)stunnel.org > > Are you sure that's entire log? check /var/log/daemons.log and > syslog.log as well. > > On Sun, Apr 24, 2011 at 1:30 AM, Jack Liu <jackliu92(a)hotmail.com> wrote: > > It anyone knows how to fix Stunnel stuck at SSL state (accept): > > before/accept initialization??? > > > > Here is the log: > > ----------------------------------------------------------------------------------------------------------- > > [root@vps1 ~]#stunnel /etc/stunnel/stunnel.conf > > 2011.04.24 02:25:13 LOG7[32174:3085993680]: Snagged 64 random bytes from > > /root/.rnd > > 2011.04.24 02:25:13 LOG7[32174:3085993680]: Wrote 1024 new random bytes to > > /root/.rnd > > 2011.04.24 02:25:13 LOG7[32174:3085993680]: RAND_status claims sufficient > > entropy for the PRNG > > 2011.04.24 02:25:13 LOG6[32174:3085993680]: PRNG seeded successfully > > 2011.04.24 02:25:13 LOG7[32174:3085993680]: Certificate: > > /etc/stunnel/stunnel.pem > > 2011.04.24 02:25:13 LOG7[32174:3085993680]: Key file: > > /etc/stunnel/stunnel.pem > > 2011.04.24 02:25:13 LOG7[32174:3085993680]: Verify directory set to > > /etc/stunnel/CA > > 2011.04.24 02:25:13 LOG7[32174:3085993680]: CRL directory set to > > /etc/stunnel/CRL > > 2011.04.24 02:25:13 LOG7[32174:3085993680]: SSL context initialized for > > service 3proxy > > 2011.04.24 02:25:13 LOG5[32174:3085993680]: stunnel 4.15 on > > i686-redhat-linux-gnu with OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008 > > 2011.04.24 02:25:13 LOG5[32174:3085993680]: Threading:PTHREAD SSL:ENGINE > > Sockets:POLL,IPv6 Auth:LIBWRAP > > 2011.04.24 02:25:13 LOG6[32174:3085993680]: file ulimit = 1024 (can be > > changed with 'ulimit -n') > > 2011.04.24 02:25:13 LOG6[32174:3085993680]: poll() used - no FD_SETSIZE > > limit for file descriptors > > 2011.04.24 02:25:13 LOG5[32174:3085993680]: 500 clients allowed > > 2011.04.24 02:25:13 LOG7[32174:3085993680]: FD 3 in non-blocking mode > > 2011.04.24 02:25:13 LOG7[32174:3085993680]: FD 4 in non-blocking mode > > 2011.04.24 02:25:13 LOG7[32174:3085993680]: FD 5 in non-blocking mode > > 2011.04.24 02:25:13 LOG7[32174:3085993680]: SO_REUSEADDR option set on > > accept socket > > 2011.04.24 02:25:13 LOG7[32174:3085993680]: 3proxy bound to 0.0.0.0:30001 > > 2011.04.24 02:25:13 LOG7[32174:3085993680]: Created pid file > > /var/run/stunnel.pid > > 2011.04.24 02:25:20 LOG7[32174:3085993680]: 3proxy accepted FD=6 from > > xx.xxx.xxx.xx:41165 > > 2011.04.24 02:25:20 LOG7[32174:3085990800]: 3proxy started > > 2011.04.24 02:25:20 LOG7[32174:3085990800]: FD 6 in non-blocking mode > > 2011.04.24 02:25:20 LOG7[32174:3085990800]: FD 7 in non-blocking mode > > 2011.04.24 02:25:20 LOG7[32174:3085990800]: FD 8 in non-blocking mode > > 2011.04.24 02:25:20 LOG7[32174:3085993680]: Cleaning up the signal pipe > > 2011.04.24 02:25:20 LOG6[32174:3085993680]: Child process 32176 finished > > with code 0 > > 2011.04.24 02:25:20 LOG7[32174:3085990800]: Connection from > > xx.xxx.xxx.xx:41165 permitted by libwrap > > 2011.04.24 02:25:20 LOG5[32174:3085990800]: 3proxy connected from > > xx.xxx.xxx.xx:41165 > > 2011.04.24 02:25:20 LOG7[32174:3085990800]: SSL state (accept): > > before/accept initialization <-----------------------Stuck here > > forever!!! > > 2011.04.24 02:25:22 LOG3[32174:3085990800]: SSL_accept: Peer suddenly > > disconnected > > 2011.04.24 02:25:22 LOG5[32174:3085990800]: Connection reset: 0 bytes sent > > to SSL, 0 bytes sent to socket > > 2011.04.24 02:25:22 LOG7[32174:3085990800]: 3proxy finished (0 left) > > 2011.04.24 02:25:25 LOG3[32174:3085993680]: Received signal 2; terminating > > 2011.04.24 02:25:25 LOG7[32174:3085993680]: removing pid file > > /var/run/stunnel.pid > > [root@vps1 ~]# > > ----------------------------------------------------------------------------------------------------------- > > stunnel.conf: > > cert = /etc/stunnel/stunnel.pem > > key = /etc/stunnel/stunnel.pem > > CApath = /etc/stunnel/CA > > CRLpath = /etc/stunnel/CRL > > debug = 7 > > foreground = yes > > verify = 1 > > # > > [3proxy] > > accept = 30001 > > connect = 127.0.0.1:33135 > > ----------------------------------------------------------------------------------------------------------- > > > > I am hosting with CentOS 5.5, and installed Stunnel via yum. > > Planning to use it with 3Proxy. However I experience the problem above, can > > someone please help with that? > > Thank you very much! > > > > > > > > Mr. Jack > > > > _______________________________________________ > > stunnel-users mailing list > > stunnel-users(a)stunnel.org > > http://stunnel.mirt.net/mailman/listinfo/stunnel-users > > > >

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Re: [stunnel-users] Stunnel stuck at SSL state (accept): before/acceptinitialization
by Jack Liu 25 Apr '11

25 Apr '11

I installed the 4.35 one into my CentOS, it seems like the same problem still exist. Is there anything I can do to fix it? Mr. Jack Date: Sun, 24 Apr 2011 19:09:35 -0700 From: josealf(a)rocketmail.com Subject: Re: [stunnel-users] Stunnel stuck at SSL state (accept): before/acceptinitialization To: jackliu92(a)hotmail.com Hi Mr Jack, RPMS attached. Let me know if you need further help. Regards, Jose From: Jack Liu <jackliu92(a)hotmail.com> To: josealf(a)rocketmail.com; stunnel-users(a)stunnel.org Sent: Sun, April 24, 2011 1:08:44 PM Subject: RE: [stunnel-users] Stunnel stuck at SSL state (accept): before/acceptinitialization Yes sure, please provide the binary. Thank you very much! One additional information, running socket5 on 3Proxy. Mr. Jack > Subject: Re: [stunnel-users] Stunnel stuck at SSL state (accept): before/acceptinitialization > To: jackliu92(a)hotmail.com; stunnel-users(a)stunnel.org > From: josealf(a)rocketmail.com > Date: Sun, 24 Apr 2011 11:49:05 +0000 > > If you ruled out a configuration error, You should try with a more recent version of stunnel. You can recompile the SRPM (4.29) from redhat 6 (or scientific linux 6) and it works fine under CentOS 5. I can provide binaries if needed. > > -----Original Message----- > From: Jack Liu <jackliu92(a)hotmail.com> > Sender: stunnel-users-bounces(a)stunnel.org > Date: Sun, 24 Apr 2011 02:30:24 > To: <stunnel-users(a)stunnel.org> > Subject: [stunnel-users] Stunnel stuck at SSL state (accept): before/accept > initialization > > _______________________________________________ > stunnel-users mailing list > stunnel-users(a)stunnel.org > http://stunnel.mirt.net/mailman/listinfo/stunnel-users > > >

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Re: [stunnel-users] Stunnel stuck at SSL state (accept): before/acceptinitialization
by Jack Liu 25 Apr '11

25 Apr '11

Thank you! Mr. Jack Date: Sun, 24 Apr 2011 19:09:35 -0700 From: josealf(a)rocketmail.com Subject: Re: [stunnel-users] Stunnel stuck at SSL state (accept): before/acceptinitialization To: jackliu92(a)hotmail.com Hi Mr Jack, RPMS attached. Let me know if you need further help. Regards, Jose From: Jack Liu <jackliu92(a)hotmail.com> To: josealf(a)rocketmail.com; stunnel-users(a)stunnel.org Sent: Sun, April 24, 2011 1:08:44 PM Subject: RE: [stunnel-users] Stunnel stuck at SSL state (accept): before/acceptinitialization Yes sure, please provide the binary. Thank you very much! One additional information, running socket5 on 3Proxy. Mr. Jack > Subject: Re: [stunnel-users] Stunnel stuck at SSL state (accept): before/acceptinitialization > To: jackliu92(a)hotmail.com; stunnel-users(a)stunnel.org > From: josealf(a)rocketmail.com > Date: Sun, 24 Apr 2011 11:49:05 +0000 > > If you ruled out a configuration error, You should try with a more recent version of stunnel. You can recompile the SRPM (4.29) from redhat 6 (or scientific linux 6) and it works fine under CentOS 5. I can provide binaries if needed. > > -----Original Message----- > From: Jack Liu <jackliu92(a)hotmail.com> > Sender: stunnel-users-bounces(a)stunnel.org > Date: Sun, 24 Apr 2011 02:30:24 > To: <stunnel-users(a)stunnel.org> > Subject: [stunnel-users] Stunnel stuck at SSL state (accept): before/accept > initialization > > _______________________________________________ > stunnel-users mailing list > stunnel-users(a)stunnel.org > http://stunnel.mirt.net/mailman/listinfo/stunnel-users > > >

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