- stunnel-users - stunnel.org

Access control/TCP wrappers
by Craig Watkinson 23 Feb '10

23 Feb '10

Hi, We're using stunnel to provide a secure interface to an old server that doesn't support HTTPS natively. I'd like to implement some access control so that connections are only supported from specific IP addresses. I am using v4.27 of stunnel that I downloaded from HPs website, and am running it from inittab to ensure it is always running. Unfortunately I don't think it's compiled with libwrap. Should I see libwrap listed when I run ldd against the binary (see below for output)? I think it's possible to run stunnel from inetd. Could I wrapper it here? Is the following entry correct? stunnel stream tcp nowait root /usr/lbin/tcpd /opt/iexpress/stunnel/bin/stunnel stunnel I think this would work, but I'm concerned that if stunnel was to crash or be killed that there would be nothing restarting it if we ran it from inetd. Any advice much appreciated Craig ------------------------------------- # ./stunnel -version stunnel 4.27 on ia64-hp-hpux11.23 with OpenSSL 0.9.7m 23 Feb 2007 Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv6 Global options debug = 5 pid = /opt/iexpress/stunnel/var/run/stunnel/stunnel.pid RNDbytes = 64 RNDfile = /dev/urandom RNDoverwrite = yes Service-level options cert = /opt/iexpress/stunnel/etc/stunnel/stunnel.pem ciphers = ALL:!aNULL:!eNULL+RC4:@STRENGTH key = /opt/iexpress/stunnel/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 # ldd ./stunnel libdl.so.1 => /usr/lib/hpux32/libdl.so.1 libnsl.so.1 => /usr/lib/hpux32/libnsl.so.1 libpthread.so.1 => /usr/lib/hpux32/libpthread.so.1 libunwind.so.1 => /usr/lib/hpux32/libunwind.so.1 libc.so.1 => /usr/lib/hpux32/libc.so.1 libxti.so.1 => /usr/lib/hpux32/libxti.so.1 libuca.so.1 => /usr/lib/hpux32/libuca.so.1 libdl.so.1 => /usr/lib/hpux32/libdl.so.1 _________________________________________________________________ Do you have a story that started on Hotmail? Tell us now http://clk.atdmt.com/UKM/go/195013117/direct/01/

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4.26 and commercial certificate - Now working.
by Editor (Kevin) 20 Feb '10

20 Feb '10

Hi: Thanks. Everything is working now. > Message: 1 > Date: Wed, 17 Feb 2010 07:11:16 -0800 (PST) > From: Leandro Avila <leandro.avila(a)ymail.com> > Subject: Re: [stunnel-users] Small challenge with version 4.26 and a > commercial certificate > To: stunnel-users(a)mirt.net > Message-ID: <544640.49520.qm(a)web111011.mail.gq1.yahoo.com> > Content-Type: text/plain; charset=us-ascii > > Hi Kevin, > > I think there is ambiguous information about this. > The man page states that the private key should be unencrypted > However, the changelog states that the support for pass phrases was fixed in v4.20 > > I'll do some testing see what I can find. Or maybe someone can shed some light on the issue. > > Best regards > > ----------------- > Leandro Avila

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Re: [stunnel-users] Make reports an error on Aix with stunnel-4.30
by Michal Trojnara 19 Feb '10

19 Feb '10

Derek Nicholls wrote: > gcc -g -O2 -Wall -Wshadow -Wcast-align -Wpointer-arith > -I/opt/freeware/include -o stunnel file.o client.o log.o options.o > protocol.o network.o resolver.o ssl.o ctx.o verify.o sthreads.o stunnel.o > pty.o libwrap.o -lz -ldl -L/opt/freeware/lib -lssl -lcrypto > ld: 0711-317 ERROR: Undefined symbol: .SSL_CTX_set_info_callback > ld: 0711-317 ERROR: Undefined symbol: .SSL_CTX_sess_set_new_cb > ld: 0711-317 ERROR: Undefined symbol: .SSL_CTX_sess_set_get_cb > ld: 0711-317 ERROR: Undefined symbol: .SSL_CTX_sess_set_remove_cb > ld: 0711-317 ERROR: Undefined symbol: .BIO_set_flags > ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more > information. > collect2: ld returned 8 exit status > make: 1254-004 The error code from the last command is 1. What it means is that the linker has found on its path another version of libssl, older than your headers in /opt/freeware/include. Mike

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Cert Chain Question
by Craig Kelley 18 Feb '10

18 Feb '10

I've been attempting to include an intermediate chain for my stunnel setup. First, I previously used an entrust-signed certificate with stunnel just fine, but now I've purchased one from godaddy ($190 for 3 certs for 5 years!). The only problem is that the server has multiple certificates to install. Under Apache, I solved it with this: SSLCertificateFile /etc/httpd/conf/ssl.crt/server.crt SSLCertificateKeyFile /etc/httpd/conf/ssl.key/server.key SSLCertificateChainFile /etc/httpd/conf/ssl.crt/godaddy.crt Which works just fine. With stunnel I attempted this configuration: cert = /etc/stunnel/server.crt key = /etc/stunnel/server.key CAfile = /etc/stunnel/godaddy.crt All those files are identical to the Apache configuration. Stunnel starts up, but clients loudly complain that the certificate is not valid. If I examine the certificate in Thunderbird (I use stunnel for IMAPS and POP3S), it correctly identifies the cert as being from GoDaddy and that it will expire in 2015. But for some reason, the chain to its root server is broken. What am I doing wrong? -- Craig Kelley http://inconnu.islug.org/~ink finger same server for PGP block

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Small challenge with version 4.26 and a commercial certificate
by editor 17 Feb '10

17 Feb '10

Hi: I decided to spend the money and get a commercial certificate from Thawte. It was not a bad price. I have installed in the Sun host and while it works perfectly for Apache but I can not get the file to work for stunnel. The idea is to allow mobile users to access their mail without annoying certificate warnings. This is what happens: # /usr/local/bin/stunnel & [1] 13704 # Enter PEM pass phrase: 2010.02.14 05:32:46 LOG7[13704:1]: Snagged 64 random bytes from /export/home/kgreene/.rnd 2010.02.14 05:32:46 LOG7[13704:1]: Wrote 1024 new random bytes to /export/home/kgreene/.rnd 2010.02.14 05:32:46 LOG7[13704:1]: RAND_status claims sufficient entropy for the PRNG 2010.02.14 05:32:46 LOG7[13704:1]: PRNG seeded successfully 2010.02.14 05:32:46 LOG7[13704:1]: Certificate: /usr/local/etc/stunnel/stunnel.pem 2010.02.14 05:32:46 LOG7[13704:1]: Certificate loaded 2010.02.14 05:32:46 LOG7[13704:1]: Key file: /usr/local/etc/stunnel/stunnel.pem 2010.02.14 05:32:46 LOG3[13704:1]: error stack: 140B3009 : error:140B3009:SSL routines:SSL_CTX_use_RSAPrivateKey_file:PEM lib 2010.02.14 05:32:46 LOG3[13704:1]: error stack: 906A068 : error:0906A068:PEM routines:PEM_do_header:bad password read 2010.02.14 05:32:46 LOG3[13704:1]: SSL_CTX_use_RSAPrivateKey_file: 906406D: error:0906406D:PEM routines:PEM_def_callback:problems getting password [1]+ Exit 1 /usr/local/bin/stunnel # It never pauses to let me enter the PEM pass phase. As in instructed in the man pages, I created the pem file by merging the private key and the certificate from Thawte. This is the version statement: # /usr/local/bin/stunnel -version stunnel 4.26 on sparc-sun-solaris2.9 with OpenSSL 0.9.8l 5 Nov 2009 Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv6 Auth:LIBWRAP Global options debug = 5 pid = /usr/local/var/run/stunnel/stunnel.pid RNDbytes = 64 RNDfile = /dev/urandom RNDoverwrite = yes Service-level options cert = /usr/local/etc/stunnel/stunnel.pem ciphers = AES:ALL:!aNULL:!eNULL:+RC4:@STRENGTH key = /usr/local/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 ------------------------------- Any ideas would be great. Thanks. Kevin

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nessus crashes stunnel
by Roger Cruz 12 Feb '10

12 Feb '10

We ran Nessus on a Linux system and found that stunnel crashes when the weak certificate suite is enabled. GDB shows the stack trace below and it appears to be in the SSL library. My search on this mailing list led me to this message that appears to report a similar problem http://mirt.net/pipermail/stunnel-users/2008-January/001830.html Am I to understand that the problem is really with OpenSSL and that's what needs to be upgraded? If so, do we know what version will have the fixed problem? I'm going to post in the OpenSSL forum as well, but I wanted to start here since from our perspective, Stunnel is the one crashing. Thank you Roger Cruz 2010.02.05 12:49:11 LOG7[13524:3086718672]: Cleaning up the signal pipe 2010.02.05 12:49:11 LOG6[13524:3086718672]: Child process 13575 finished with code 0 Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0xb7fa7b90 (LWP 13574)] 0x007b24a7 in krb5_is_referral_realm () from /usr/lib/libkrb5.so.3 (gdb) bt #0 0x007b24a7 in krb5_is_referral_realm () from /usr/lib/libkrb5.so.3 #1 0x0089d338 in kssl_keytab_is_available () from /lib/libssl.so.6 #2 0x008803b1 in ssl3_choose_cipher () from /lib/libssl.so.6 #3 0x0087b2a2 in ssl3_get_client_hello () from /lib/libssl.so.6 #4 0x0087bc85 in ssl3_accept () from /lib/libssl.so.6 #5 0x0089109a in SSL_accept () from /lib/libssl.so.6 #6 0x00884d0d in ssl23_get_client_hello () from /lib/libssl.so.6 #7 0x0088554b in ssl23_accept () from /lib/libssl.so.6 #8 0x0089109a in SSL_accept () from /lib/libssl.so.6 #9 0x003628e2 in ?? () from /usr/sbin/stunnel #10 0x00363acd in ?? () from /usr/sbin/stunnel #11 0x003645ba in ?? () from /usr/sbin/stunnel #12 0x003646a8 in client () from /usr/sbin/stunnel #13 0x0025f45b in start_thread () from /lib/libpthread.so.0 #14 0x00448e5e in clone () from /lib/libc.so.6 (gdb) quit [root@p20xen1 current_hq]# stunnel -version stunnel 4.15 on i686-redhat-linux-gnu with OpenSSL 0.9.8b 04 May 2006 Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv6 Auth:LIBWRAP Global options debug = 5 pid = /var/run/stunnel.pid RNDbytes = 64 RNDfile = /dev/urandom RNDoverwrite = yes Service-level options cert = /etc/stunnel/stunnel.pem ciphers = ALL:!ADH:+RC4:@STRENGTH key = /etc/stunnel/stunnel.pem session = 300 seconds TIMEOUTbusy = 300 seconds TIMEOUTclose = 60 seconds TIMEOUTconnect = 10 seconds TIMEOUTidle = 43200 seconds verify = none

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using ECDH with stunnel
by Carl 11 Feb '10

11 Feb '10

Is is possible to use ECDH with stunnel? When using s_server and specifying the cipher I can establish a connection. But when using stunnel and specifing the same cipher, the connection is rejected with "no shared cipher". e.g. openssl s_server -cert server.pem -cipher DHE-RSA-AES256-SHA It appears the difference is that s_server uses "default temp ECDH parameters" while stunnel doesn't have a default nor is there a way to specify the ECDH parameters. >From what I understand the ECDH parameters cannot be included with the certificate, unlike DH parameters. Is my understanding correct? Thanks, Carl

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SSL connection through Proxy server with authentication
by Girish Kolari 09 Feb '10

09 Feb '10

Hi I am trying to create a SSL connection through Proxy server with authentication. my stunnel.conf file ----- part of the conf file connect = <Proxy server IP: Port number> protocol=connect protocolHost=<Destination server:Port number> protocolUsername = useme protocolPassword = test ----- but it fails to establish connection. Log details: ----- part of log generated 2010.02.09 16:07:49 LOG5[14506:2952859648]: Negotiations for connect (client side) started 2010.02.09 16:07:49 LOG7[14506:2952859648]: -> CONNECT <Destination server:Port number> HTTP/1.1 2010.02.09 16:07:49 LOG7[14506:2952859648]: -> Host: 6<Destination server:Port number> 2010.02.09 16:07:49 LOG7[14506:2952859648]: -> Proxy-Authorization: basic dXNlbWU6dGVzdA== 2010.02.09 16:07:49 LOG7[14506:2952859648]: -> 2010.02.09 16:07:49 LOG3[14506:2952859648]: Unexpected socket close (fdgetline) 2010.02.09 16:07:49 LOG5[14506:2952859648]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2010.02.09 16:07:49 LOG7[14506:2952859648]: Service IDrive finished (0 left) ----- I tried with proxy server without authentication it works great, but not sure why Proxy server with authentication is not working. Is it I am missing some thing or am I doing something wrong? I appreciate all suggestion and help on this. Thanks & Regards Girish Kolari

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Stunnel and multiple endpoints.
by Richard Harvey 08 Feb '10

08 Feb '10

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi guys, I'm new to stunnel and I'm looking for a way to run stunnel on a single port. Then based on the client certificate, proxy that connection (in clear) to a different IP:port. If this something I can do with stunnel or am i barking up the wrong tree so to speak. Any help would be a appreciated guys. Cheers Ric - -- Richard Harvey European Linux Administrator Core Systems Ticketmaster +44 (0)207 9804328 80228 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAktv5ZIACgkQlh7dZJ0PyjcfxQCfWA5PO0d/uDf/Mqq2BrFsu5wf xBYAoKmKW8760P91JR3oeviKwjd/1o/A =o+/U -----END PGP SIGNATURE-----

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Re: [stunnel-users] Memory problems
by Peter Griffin 05 Feb '10

05 Feb '10

A portion of the messages in /var/log/stunnel.log before I disabled logging as I thought it would help: 2010.02.04 22:46:28 LOG3[1615:140132721108752]: SSL_accept: Peer suddenly disconnected 2010.02.04 22:46:32 LOG3[1615:140132721108752]: SSL_accept: Peer suddenly disconnected 2010.02.04 22:46:55 LOG3[1615:140132734469904]: getpeerbyname: Transport endpoint is not connected (107) 2010.02.04 22:46:57 LOG3[1615:140132734400272]: SSL_read: Connection reset by peer (104) 2010.02.04 22:47:12 LOG3[1615:140132734261008]: SSL_accept: Peer suddenly disconnected 2010.02.04 22:47:35 LOG3[1615:140132735235856]: SSL_read: Connection reset by peer (104) 2010.02.04 22:48:08 LOG3[1615:140132733982480]: SSL_accept: Peer suddenly disconnected 2010.02.04 22:48:09 LOG3[1615:140132721108752]: SSL_accept: Peer suddenly disconnected 2010.02.04 22:48:09 LOG3[1615:140132721108752]: SSL_accept: Peer suddenly disconnected 2010.02.04 22:48:09 LOG3[1615:140132721108752]: SSL_accept: Peer suddenly disconnected 2010.02.04 22:48:23 LOG3[1615:140132735235856]: SSL_accept: Peer suddenly disconnected 2010.02.04 22:48:42 LOG3[1615:140132733982480]: transfer() loop executes not transferring any data 2010.02.04 22:48:42 LOG3[1615:140132733982480]: please report the problem to Michal.Trojnara(a)mirt.net 2010.02.04 22:48:42 LOG3[1615:140132733982480]: socket open: rd=yes wr=no, ssl open: rd=no wr=yes 2010.02.04 22:48:42 LOG3[1615:140132733982480]: socket ready: rd=no wr=no, ssl ready: rd=yes wr=no 2010.02.04 22:48:42 LOG3[1615:140132733982480]: wants: SSL_read rd=no wr=no, SSL_write rd=no wr=yes, SSL_shutdown rd=no wr=no 2010.02.04 22:48:42 LOG3[1615:140132733982480]: socket input buffer: 16384 byte(s), ssl input buffer: 0 byte(s) 2010.02.04 22:48:42 LOG3[1615:140132733982480]: check_SSL_pending=0 2010.02.04 22:48:52 LOG3[1615:140132734261008]: SSL_accept: Peer suddenly disconnected 2010.02.04 22:48:56 LOG3[1615:140132734261008]: SSL_accept: Peer suddenly disconnected 2010.02.04 22:49:01 LOG3[1615:140132734330640]: SSL_accept: Peer suddenly disconnected 2010.02.04 22:49:03 LOG3[1615:140132734400272]: SSL socket closed on SSL_read with 7294 byte(s) in buffer 2010.02.04 22:49:05 LOG3[1615:140132734469904]: SSL_accept: Peer suddenly disconnected 2010.02.04 22:49:16 LOG3[1615:140132721108752]: SSL socket closed on SSL_read with 16384 byte(s) in buffer 2010.02.04 22:49:26 LOG3[1615:140132733982480]: SSL socket closed on SSL_read with 16384 byte(s) in buffer 2010.02.04 22:49:28 LOG3[1615:140132733982480]: SSL_accept: Peer suddenly disconnected 2010.02.04 22:49:29 LOG3[1615:140132733982480]: SSL_accept: Peer suddenly disconnected 2010.02.04 22:49:29 LOG3[1615:140132733982480]: SSL_accept: Peer suddenly disconnected 2010.02.04 22:49:29 LOG3[1615:140132733982480]: SSL_accept: Peer suddenly disconnected 2010.02.04 22:49:29 LOG3[1615:140132733982480]: SSL_accept: Peer suddenly disconnected 2010.02.04 22:49:34 LOG3[1615:140132733982480]: getpeerbyname: Transport endpoint is not connected (107) 2010.02.04 22:49:35 LOG3[1615:140132720899856]: SSL_accept: Peer suddenly disconnected 2010.02.04 22:49:35 LOG3[1615:140132733982480]: SSL_accept: Peer suddenly disconnected

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Does stunnel support IPv6, and proxying from IPv4 to IPv6?
by Jeff Schmidt 05 Feb '10

05 Feb '10

Hello, I was wondering, does stunnel have IPv6 support? If so, does such support extend to the point of allowing the 'local' side of the connection (e.g. from a server process, or from a client application) to be made with IPv4, while the 'global' side is IPv6? If so, is it possible to use stunnel in an unencrypting mode (that is, not encrypting the data with SSL, but just using stunnel to proxy traffic between IPv4 and IPv6)? The reason I ask is that I am looking for a solution to allow me to IPv6-enable 'legacy' IPv4 applications. When I started thinking about this problem, I almost immediately remembered using stunnel in the past to SSL-enable IPv4 applications which didn't have built-in SSL support, and it occured to me that there was a lot of similarity between the non-SSL application problem, and the non-IPv6 application problem - that is, it seems like possibly, you could setup a sort of IPv6 tunnel using stunnel (or something similar), where the legacy application makes an local IPv4 connection to the stunnel/proxy software, and the proxy then makes an IPv6 connection, just like stunnel accepts local IPv4 connections (unecrypted) and then creates a second, proxied connection which is encrypted. Does that make any sense? (I hope so). So, can stunnel be used with both IPv4 and IPv6 simultaneously?

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Memory problems
by Peter Griffin 05 Feb '10

05 Feb '10

Hi, I'm using stunnel 4.22 with OpenSSL 0.9.7m - I am using 4.22 because of the xforwarded-for patch and 4.27 is not supported. I am running stunnel in standalone mode on a P4 3.2Ghz with 1Gb of Ram. When I start haproxy & stunnel after a reboot, free memory starts at about 750Mb then slowly degrades to about 45Mb. After 8 more hours or so of operation our site was completely unbrowsable. I checked our firewall for unusual traffic, and there were none. Running top does not indicate any processes which are consuming all that memory and that is what I find weid. Only a reboot frees up the memory. Should I be running stunnel on more Ram? stunnel -v output: [root@lb1 ~]# stunnel -version stunnel 4.22 on x86_64-unknown-linux-gnu with OpenSSL 0.9.7m 23 Feb 2007 Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv6 Global options debug = 5 pid = /usr/local/var/run/stunnel/stunnel.pid RNDbytes = 64 RNDfile = /dev/urandom RNDoverwrite = yes Service-level options cert = /usr/local/etc/stunnel/stunnel.pem ciphers = ALL:!aNULL:!eNULL+RC4:@STRENGTH key = /usr/local/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 stunnel.conf: #setuid=stunnel #setgid=proxy #debug = 3 #output = /var/log/stunnel.log socket=l:TCP_NODELAY=1 socket=r:TCP_NODELAY=1 [https] accept=10.0.1.50:443 connect=10.0.1.50:80 TIMEOUTclose=0 xforwardedfor=yes

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HTTP Connect proxy patch
by Dmitry Gromov 05 Feb '10

05 Feb '10

Hi! It seems like the latest patch to support HTTP Connect proxy is for 4.05 version. Any one knows if it is compatible with the latest version? If not, is there more recent version of the patch? I also wonder why this never made to the code... Seems like a very useful feature. Thanks, Dmitry -- DG NJ

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after 4.31 no more logging to syslog
by Axel Reinhold 05 Feb '10

05 Feb '10

> > with stunnel up to 4.29 i got syslog messages to /var/log/maillog. > > with stunnel 4.30 the startup was broken - some chroot-issues, > > with your patches i could get it running - with 4.31 stunnel is > > working for me but i don't get any syslogging any more - is there > > a way to get the old behaviour again? > > Please test: > ftp://stunnel.mirt.net/stunnel/stunnel-4.32b1.tar.gz > and let us know if it works for you. > > Best regards, > Mike > Dear Mike, looks very good - works for me 100%. Thanks. Cheers Axel

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after 4.31 no more logging to syslog
by Axel Reinhold 04 Feb '10

04 Feb '10

with stunnel up to 4.29 i got syslog messages to /var/log/maillog. with stunnel 4.30 the startup was broken - some chroot-issues, with your patches i could get it running - with 4.31 stunnel is working for me but i don't get any syslogging any more - is there a way to get the old behaviour again? root@bongo opt]# grep stunnel /var/log/maillog Jan 27 21:38:25 bongo stunnel: LOG5[31985:16384]: stunnel 4.29 on i686-pc-linux-gnu with OpenSSL 0.9.8l 5 Nov 2009 Jan 27 21:38:25 bongo stunnel: LOG5[31985:16384]: Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv6 Auth:LIBWRAP Jan 27 21:38:25 bongo stunnel: LOG6[31985:16384]: file ulimit = 1024 (can be changed with 'ulimit -n') Jan 27 21:38:25 bongo stunnel: LOG6[31985:16384]: poll() used - no FD_SETSIZE limit for file descriptors Jan 27 21:38:25 bongo stunnel: LOG5[31985:16384]: 500 clients allowed Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: FD 9 in non-blocking mode Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: FD 10 in non-blocking mode Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: FD 11 in non-blocking mode Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: SO_REUSEADDR option set on accept socket Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: imaps bound to 0.0.0.0:993 Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: FD 12 in non-blocking mode Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: SO_REUSEADDR option set on accept socket Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: pop3s bound to 0.0.0.0:995 Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: FD 13 in non-blocking mode Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: SO_REUSEADDR option set on accept socket Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: arcorpop3 bound to 127.0.0.1:3003 Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: FD 14 in non-blocking mode Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: SO_REUSEADDR option set on accept socket Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: bnvhpop3 bound to 127.0.0.1:3004 Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: FD 15 in non-blocking mode Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: SO_REUSEADDR option set on accept socket Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: netidpop3 bound to 127.0.0.1:3005 Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: FD 16 in non-blocking mode Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: SO_REUSEADDR option set on accept socket Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: icybolt bound to 127.0.0.1:3006 Jan 27 21:38:25 bongo stunnel: LOG7[31991:16384]: Created pid file /var/run/stunnel.pid Axel

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Stunnel 4.31 released
by Michal Trojnara 03 Feb '10

03 Feb '10

The ChangeLog entry: Version 4.31, 2010.02.03, urgency: MEDIUM: * New features - Log file reopen on USR1 signal was added. * Bugfixes - Some regression issues introduced in 4.30 were fixed. SHA-1 value for stunnel-4.31.tar.gz: f51fc544a0554f6eee2bfca1fcb8ddcb8386ce32 Home page: http://stunnel.mirt.net/ Download: ftp://stunnel.mirt.net/stunnel/ Best regards, Michal Trojnara

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after 4.30 no more working
by Axel Reinhold 03 Feb '10

03 Feb '10

My current compile-install-configure-run environment is broken with 4.30. Up to 4.29 stunnel is working ok for me. 4.30 compiles, installs but when running it (i simply start /opt/ssl/bin/stunnel) the behaviour is completely different. Up to version 4.29 the program simply starts and logs to syslog: root@bongo opt]# /opt/ssl/bin/stunnel root@bongo opt]# grep stunnel /var/log/maillog Jan 27 21:38:25 bongo stunnel: LOG5[31985:16384]: stunnel 4.29 on i686-pc-linux-gnu with OpenSSL 0.9.8l 5 Nov 2009 Jan 27 21:38:25 bongo stunnel: LOG5[31985:16384]: Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv6 Auth:LIBWRAP Jan 27 21:38:25 bongo stunnel: LOG6[31985:16384]: file ulimit = 1024 (can be changed with 'ulimit -n') Jan 27 21:38:25 bongo stunnel: LOG6[31985:16384]: poll() used - no FD_SETSIZE limit for file descriptors Jan 27 21:38:25 bongo stunnel: LOG5[31985:16384]: 500 clients allowed Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: FD 9 in non-blocking mode Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: FD 10 in non-blocking mode Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: FD 11 in non-blocking mode Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: SO_REUSEADDR option set on accept socket Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: imaps bound to 0.0.0.0:993 Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: FD 12 in non-blocking mode Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: SO_REUSEADDR option set on accept socket Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: pop3s bound to 0.0.0.0:995 Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: FD 13 in non-blocking mode Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: SO_REUSEADDR option set on accept socket Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: arcorpop3 bound to 127.0.0.1:3003 Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: FD 14 in non-blocking mode Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: SO_REUSEADDR option set on accept socket Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: bnvhpop3 bound to 127.0.0.1:3004 Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: FD 15 in non-blocking mode Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: SO_REUSEADDR option set on accept socket Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: netidpop3 bound to 127.0.0.1:3005 Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: FD 16 in non-blocking mode Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: SO_REUSEADDR option set on accept socket Jan 27 21:38:25 bongo stunnel: LOG7[31985:16384]: icybolt bound to 127.0.0.1:3006 Jan 27 21:38:25 bongo stunnel: LOG7[31991:16384]: Created pid file /var/run/stunnel.pid With 4.30 i get lots of messages to the console and stunnel does not fork into background - where is the magic to get the old behaviour with 4.30? At the end stunnel reports: daemon: No such file or directory (2) root@bongo opt]# /opt/ssl/bin/stunnel Reading configuration from file /etc/ssl/stunnel/stunnel.conf Snagged 64 random bytes from /root/.rnd Wrote 1024 new random bytes to /root/.rnd RAND_status claims sufficient entropy for the PRNG PRNG seeded successfully Certificate: /etc/ssl/stunnel/freakout.pem Certificate loaded Key file: /etc/ssl/stunnel/freakout.key Private key loaded SSL context initialized for service imaps Certificate: /etc/ssl/stunnel/freakout.pem Certificate loaded Key file: /etc/ssl/stunnel/freakout.key Private key loaded SSL context initialized for service pop3s SSL context initialized for service arcorpop3 SSL context initialized for service bnvhpop3 SSL context initialized for service netidpop3 SSL context initialized for service icybolt Configuration successful No limit detected for the number of clients FD=8 in non-blocking mode FD=9 in non-blocking mode FD=10 in non-blocking mode Option SO_REUSEADDR set on accept socket Service imaps bound to 0.0.0.0:993 Service imaps opened FD=10 FD=11 in non-blocking mode Option SO_REUSEADDR set on accept socket Service pop3s bound to 0.0.0.0:995 Service pop3s opened FD=11 FD=12 in non-blocking mode Option SO_REUSEADDR set on accept socket Service arcorpop3 bound to 127.0.0.1:3003 Service arcorpop3 opened FD=12 FD=13 in non-blocking mode Option SO_REUSEADDR set on accept socket Service bnvhpop3 bound to 127.0.0.1:3004 Service bnvhpop3 opened FD=13 FD=14 in non-blocking mode Option SO_REUSEADDR set on accept socket Service netidpop3 bound to 127.0.0.1:3005 Service netidpop3 opened FD=14 FD=15 in non-blocking mode Option SO_REUSEADDR set on accept socket Service icybolt bound to 127.0.0.1:3006 Service icybolt opened FD=15 Created pid file /var/run/stunnel.pid daemon: No such file or directory (2) removing pid file /var/run/stunnel.pid Axel

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after 4.30 no more working
by Axel Reinhold 01 Feb '10

01 Feb '10

> Axel Reinhold wrote: > > root@bongo opt]# /opt/ssl/bin/stunnel > [cut] > > daemon: No such file or directory (2) > > removing pid file /var/run/stunnel.pid > > That's interesting. I couldn't reproduce it. > > Could you install strace tool and than execute: > strace -f -o /tmp/stunnel.log /opt/ssl/bin/stunnel > , and than send us the output of /tmp/stunnel.log? > > Mike Here's the strace-log.

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Stunnel 4.3 not forwarding to server socket
by Vladimir Stariradev 28 Jan '10

28 Jan '10

Dear Stunnel users, I'm running stunnel on my server which accepts connections from my mobile phone emulator (j2me) like so: midlet app -> port:5555 stunnel -> port:6666 server. My midlet, which can be treated as a java app, uses ssl://127.0.0.1:5555 to connect to stunnel. I can establish a connection between the stunnel and the app because I can get information on the certificate. The problem is that when I send data from the midlet to the server, the server doesn't accept it, nor does it signal that anything has been received even when I have double-checked that the streams are setup. I have pasted my config and log files below. Any suggestions are fully appreciated. Regards, Vladimir version: stunnel 4.30 on x86-pc-mingw32-gnu with OpenSSL 0.9.8l 5 Nov 2009 stunnel.conf: cert = SecIM.pem debug = 7 ;output = stunnel.log [SecureIM] accept = 5555 connect = 6666 client = no Log file: 2010.01.28 17:51:09 LOG5[3828:1772]: Reading configuration from file stunnel.conf 2010.01.28 17:51:09 LOG7[3828:1772]: Snagged 64 random bytes from C:/.rnd 2010.01.28 17:51:09 LOG7[3828:1772]: Wrote 0 new random bytes to C:/.rnd 2010.01.28 17:51:09 LOG7[3828:1772]: RAND_status claims sufficient entropy for the PRNG 2010.01.28 17:51:09 LOG7[3828:1772]: PRNG seeded successfully 2010.01.28 17:51:09 LOG7[3828:1772]: Certificate: SecIM.pem 2010.01.28 17:51:09 LOG7[3828:1772]: Certificate loaded 2010.01.28 17:51:09 LOG7[3828:1772]: Key file: SecIM.pem 2010.01.28 17:51:11 LOG7[3828:1772]: Private key loaded 2010.01.28 17:51:11 LOG7[3828:1772]: SSL context initialized for service SecureIM 2010.01.28 17:51:11 LOG5[3828:1772]: Configuration successful 2010.01.28 17:51:11 LOG5[3828:1772]: No limit detected for the number of clients 2010.01.28 17:51:11 LOG7[3828:1772]: FD=168 in non-blocking mode 2010.01.28 17:51:11 LOG7[3828:1772]: Option SO_REUSEADDR set on accept socket 2010.01.28 17:51:11 LOG7[3828:1772]: Service SecureIM bound to 0.0.0.0:5555 2010.01.28 17:51:11 LOG7[3828:1772]: Service SecureIM opened FD=168 2010.01.28 17:51:11 LOG5[3828:1772]: stunnel 4.30 on x86-pc-mingw32-gnu with OpenSSL 0.9.8l 5 Nov 2009 2010.01.28 17:51:11 LOG5[3828:1772]: Threading:WIN32 SSL:ENGINE Sockets:SELECT,IPv6 2010.01.28 17:52:13 LOG7[3828:2836]: Service SecureIM accepted FD=212 from 127.0.0.1:56133 2010.01.28 17:52:13 LOG7[3828:2836]: Creating a new thread 2010.01.28 17:52:13 LOG7[3828:2836]: New thread created 2010.01.28 17:52:13 LOG7[3828:3336]: Service SecureIM started 2010.01.28 17:52:13 LOG7[3828:3336]: FD=212 in non-blocking mode 2010.01.28 17:52:13 LOG7[3828:3336]: Option TCP_NODELAY set on local socket 2010.01.28 17:52:13 LOG5[3828:3336]: Service SecureIM accepted connection from 127.0.0.1:56133 2010.01.28 17:52:13 LOG7[3828:3336]: SSL state (accept): before/accept initialization 2010.01.28 17:52:13 LOG7[3828:3336]: SSL state (accept): SSLv3 read client hello A 2010.01.28 17:52:13 LOG7[3828:3336]: SSL state (accept): SSLv3 write server hello A 2010.01.28 17:52:13 LOG7[3828:3336]: SSL state (accept): SSLv3 write certificate A 2010.01.28 17:52:13 LOG7[3828:3336]: SSL state (accept): SSLv3 write server done A 2010.01.28 17:52:13 LOG7[3828:3336]: SSL state (accept): SSLv3 flush data 2010.01.28 17:52:13 LOG7[3828:3336]: SSL state (accept): SSLv3 read client key exchange A 2010.01.28 17:52:13 LOG7[3828:3336]: SSL state (accept): SSLv3 read finished A 2010.01.28 17:52:13 LOG7[3828:3336]: SSL state (accept): SSLv3 write change cipher spec A 2010.01.28 17:52:13 LOG7[3828:3336]: SSL state (accept): SSLv3 write finished A 2010.01.28 17:52:13 LOG7[3828:3336]: SSL state (accept): SSLv3 flush data 2010.01.28 17:52:13 LOG7[3828:3336]: 1 items in the session cache 2010.01.28 17:52:13 LOG7[3828:3336]: 0 client connects (SSL_connect()) 2010.01.28 17:52:13 LOG7[3828:3336]: 0 client connects that finished 2010.01.28 17:52:13 LOG7[3828:3336]: 0 client renegotiations requested 2010.01.28 17:52:13 LOG7[3828:3336]: 1 server connects (SSL_accept()) 2010.01.28 17:52:13 LOG7[3828:3336]: 1 server connects that finished 2010.01.28 17:52:13 LOG7[3828:3336]: 0 server renegotiations requested 2010.01.28 17:52:13 LOG7[3828:3336]: 0 session cache hits 2010.01.28 17:52:13 LOG7[3828:3336]: 0 external session cache hits 2010.01.28 17:52:13 LOG7[3828:3336]: 0 session cache misses 2010.01.28 17:52:13 LOG7[3828:3336]: 0 session cache timeouts 2010.01.28 17:52:13 LOG6[3828:3336]: SSL accepted: new session negotiated 2010.01.28 17:52:13 LOG6[3828:3336]: Negotiated ciphers: RC4-SHA SSLv3 Kx=RSA Au=RSA Enc=RC4(128) Mac=SHA1 2010.01.28 17:52:13 LOG7[3828:3336]: FD=424 in non-blocking mode 2010.01.28 17:52:13 LOG6[3828:3336]: connect_blocking: connecting 127.0.0.1:6666 2010.01.28 17:52:13 LOG7[3828:3336]: connect_blocking: s_poll_wait 127.0.0.1:6666: waiting 10 seconds 2010.01.28 17:52:13 LOG5[3828:3336]: connect_blocking: connected 127.0.0.1:6666 2010.01.28 17:52:13 LOG5[3828:3336]: Service SecureIM connected remote server from 127.0.0.1:56134 2010.01.28 17:52:13 LOG7[3828:3336]: Remote FD=424 initialized 2010.01.28 17:52:13 LOG7[3828:3336]: Option TCP_NODELAY set on remote socket 2010.01.28 17:54:02 LOG3[3828:3336]: SSL_read: Connection reset by peer (WSAECONNRESET) (10054) 2010.01.28 17:54:02 LOG5[3828:3336]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2010.01.28 17:54:02 LOG7[3828:3336]: Service SecureIM finished (0 left)

1 1

Re: [stunnel-users] need to restart stunnel if stunnel starts before network?
by Michal Trojnara 23 Jan '10

23 Jan '10

Zhang Weiwu wrote: > For developer how do you think make stunnel resolving the domain when > establishing connection? Sure. This is already implemented and described in the manual: http://stunnel.mirt.net/static/stunnel.html The option is: delay = yes Mike

1 0

FIPS compilation patch for stunnel 4.30
by Michal Trojnara 21 Jan '10

21 Jan '10

Dear Users, Please find a tiny patch for FIPS mode of stunnel 4.30: ftp://stunnel.mirt.net/stunnel/fips.patch BTW: Please consider making a donation if you appreciate my work on configuration file reloading feature. Use PayPal Donate button on http://stunnel.mirt.net/ Mike

1 0

Stunnel 4.30 released
by Michal Trojnara 21 Jan '10

21 Jan '10

The ChangeLog entry: Version 4.30, 2010.01.21, urgency: LOW/EXPERIMENTAL: * New features - Graceful configuration reload with HUP signal on Unix and with GUI on Windows. This release involves major modifications of the code. I expect some regression issues, so please make sure to test this version well before running it on your production systems. SHA-1 value for stunnel-4.30.tar.gz: 46d21c3ad0e761d697f4de8c258ef999287f13f9 Home page: http://stunnel.mirt.net/ Download: ftp://stunnel.mirt.net/stunnel/ Best regards, Michal Trojnara

1 0

need to restart stunnel if stunnel starts before network?
by Zhang Weiwu 20 Jan '10

20 Jan '10

Hello. One reason to opt for stunnel instead of ssh -L to secure a local non-ssl client is, that if user use stunnel, it can work transparently, start working only when a connection is listened, so user do not have to start ssh-L before using the client and do not have to shut it down after using the client. However these days through the use of NetworkManager, the network interfaces are often not brought up when stunnel started as a system service. Instead, the network interfaces are brought up by users, in case of wifi or wan, after user typed password. I found I have to first start network interfaces, and run /etc/init.d/stunnel restart to prepare to run the insecure client. Is there a way to run in stunnel in such a way it does nothing except listening, and can recover from network restart, which happens from time to time for road warriors like me? Thanks in advance. I didn't find answer on FAQ by the way.

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Is PSK supported with openssl-1.0.0-beta3 ?
by anders nilsson 20 Jan '10

20 Jan '10

Hello I am running x64 Linux 2.6.18-92.1.22.el5 and installed OpenSSL 1.0.0-beta3 15 Jul 2009 My stunnel -version is: stunnel 4.15 on x86_64-redhat-linux-gnu with OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008 I would like to run the ciphers TLS_PSK_WITH_3DES_EDE_CBC_SHA or TLS_PSK_WITH_AES_128_CBC_SHA and I wonder how I do that. My stunnel.conf contains: ciphers = PSK-AES128-CBC-SHA:PSK-3DES-EDE-CBC-SHA and the error I get is: 2009.11.05 11:32:32 LOG3[29268:47461015826624]: SSL_CTX_set_cipher_list: 1410D0B9: error:1410D0B9:SSL routines:SSL_CTX_set_cipher_list:no cipher match Do I compile in the latest OpenSSL to stunnel? Isnt it a problem that the stunnel.conf does not even have the syntax to read PSK-key parameters since its most often run with RSA keys. _________________________________________________________________ Windows Live: Gör det enklare för dina vänner att se vad du håller på med på Facebook. http://www.microsoft.com/sverige/windows/windowslive/see-it-in-action/socia…

1 0

PKI certs
by Lendl, Daniel 13 Jan '10

13 Jan '10

Will stunnel will work with PKI certs vs self-signed? Dan Lendl 919-257-3062

2 1

Stunnel and RTMPS
by Nimrod Aviram 11 Jan '10

11 Jan '10

Hi, I'm currently trying to use rtmps, with Red5 and Stunnel, and it doesn't work with properly signed certificates: When I use a self-signed test certificate, everything works just fine. But when I use a proper certificate (2048 bits from godaddy.com, if that matters), NetConnection.connect just doesn't work - the server doesn't get a connection. https stil works though, and the browser treats the certificate as valid, so it's probably not a problem with the certificate. I saw some earlier posts on this problem, does anyone have a solution? Any comments are welcome... thanks, Nimrod

2 1

server refuses connection by STARTTLS
by Tsurutani Naoki 10 Jan '10

10 Jan '10

Hi, I want to connect to SMTP server by STARTTLS, from MUA who does not support STARTTLS. However, I cannot connect to the server with recent stunnel. On Windows XP, my stunnel.conf is the following: client=yes debug=notice output=C:\logs\stunnel.log service=stunnel [smtp_server] accept=127.0.0.1:10025 connect=smtp.example.com:587 protocol=smtp stunnel version 4.27 or 4.29 is started as service, by "C:\Network\stunnel\stunnel.exe" -service -install c:\home\turutani\INI\stunnel.conf I cannot connect with OpenSSL distributed via stunnel. Then I changed the OpenSSL DLL, and found that I can connect with OpenSSL older than 0.9.8i, while that newer than 0.9.8j fails. But it works by adding "sslVersion=all" or "sslVersion=SSLv2" to configuration file. I also ran stunnel on FreeBSD, and found the same result about SSL version. Here is a debug level log, with no "sslVersion=" or "sslVersion=SSLv3": 2010.01.08 09:50:06 LOG7[2372:3760]: RAND_status claims sufficient entropy for the PRNG 2010.01.08 09:50:06 LOG7[2372:3760]: PRNG seeded successfully 2010.01.08 09:50:06 LOG7[2372:3760]: SSL context initialized for service smtp_server 2010.01.08 09:50:06 LOG5[2372:3760]: stunnel 4.28 on x86-pc-mingw32-gnu with OpenSSL 0.9.8l 5 Nov 2009 2010.01.08 09:50:06 LOG5[2372:3760]: Threading:WIN32 SSL:ENGINE Sockets:SELECT,IPv6 2010.01.08 09:50:06 LOG5[2372:2252]: No limit detected for the number of clients 2010.01.08 09:50:06 LOG7[2372:2252]: FD 236 in non-blocking mode 2010.01.08 09:50:06 LOG7[2372:2252]: SO_REUSEADDR option set on accept socket 2010.01.08 09:50:06 LOG7[2372:2252]: smtp_server bound to 127.0.0.1:10025 2010.01.08 09:50:34 LOG7[2372:2252]: smtp_server accepted FD=244 from 127.0.0.1:1953 2010.01.08 09:50:34 LOG7[2372:2252]: Creating a new thread 2010.01.08 09:50:34 LOG7[2372:2252]: New thread created 2010.01.08 09:50:34 LOG7[2372:1036]: smtp_server started 2010.01.08 09:50:34 LOG7[2372:1036]: FD 244 in non-blocking mode 2010.01.08 09:50:34 LOG5[2372:1036]: smtp_server accepted connection from 127.0.0.1:1953 2010.01.08 09:50:34 LOG7[2372:1036]: FD 268 in non-blocking mode 2010.01.08 09:50:34 LOG6[2372:1036]: connect_blocking: connecting 133.x.y.z:587 2010.01.08 09:50:34 LOG7[2372:1036]: connect_blocking: s_poll_wait 133.x.y.z:587: waiting 10 seconds 2010.01.08 09:50:34 LOG5[2372:1036]: connect_blocking: connected 133.x.y.z:587 2010.01.08 09:50:34 LOG5[2372:1036]: smtp_server connected remote server from 192.168.3.118:1954 2010.01.08 09:50:34 LOG7[2372:1036]: Remote FD=268 initialized 2010.01.08 09:50:34 LOG5[2372:1036]: Negotiations for smtp (client side) started 2010.01.08 09:50:37 LOG7[2372:1036]: <- 220 smtp.example.com ESMTP Postfix 2010.01.08 09:50:37 LOG7[2372:1036]: -> 220 smtp.example.com ESMTP Postfix 2010.01.08 09:50:37 LOG7[2372:1036]: -> EHLO localhost 2010.01.08 09:50:37 LOG7[2372:1036]: <- 250-smtp.example.com 2010.01.08 09:50:37 LOG7[2372:1036]: <- 250-PIPELINING 2010.01.08 09:50:37 LOG7[2372:1036]: <- 250-SIZE 51200000 2010.01.08 09:50:37 LOG7[2372:1036]: <- 250-VRFY 2010.01.08 09:50:37 LOG7[2372:1036]: <- 250-ETRN 2010.01.08 09:50:37 LOG7[2372:1036]: <- 250-STARTTLS 2010.01.08 09:50:37 LOG7[2372:1036]: <- 250 8BITMIME 2010.01.08 09:50:37 LOG7[2372:1036]: -> STARTTLS 2010.01.08 09:50:37 LOG7[2372:1036]: <- 220 Ready to start TLS 2010.01.08 09:50:37 LOG5[2372:1036]: Protocol negotiations succeeded 2010.01.08 09:50:37 LOG7[2372:1036]: SSL state (connect): before/connect initialization 2010.01.08 09:50:37 LOG7[2372:1036]: SSL state (connect): SSLv3 write client hello A 2010.01.08 09:50:40 LOG3[2372:1036]: SSL_connect: Peer suddenly disconnected 2010.01.08 09:50:40 LOG5[2372:1036]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2010.01.08 09:50:40 LOG7[2372:1036]: smtp_server finished (0 left) with "sslVersion=all", 2010.01.08 09:45:33 LOG7[2664:3880]: RAND_status claims sufficient entropy for the PRNG 2010.01.08 09:45:33 LOG7[2664:3880]: PRNG seeded successfully 2010.01.08 09:45:34 LOG7[2664:3880]: SSL context initialized for service smtp_server 2010.01.08 09:45:34 LOG5[2664:3880]: stunnel 4.28 on x86-pc-mingw32-gnu with OpenSSL 0.9.8l 5 Nov 2009 2010.01.08 09:45:34 LOG5[2664:3880]: Threading:WIN32 SSL:ENGINE Sockets:SELECT,IPv6 2010.01.08 09:45:34 LOG5[2664:2408]: No limit detected for the number of clients 2010.01.08 09:45:34 LOG7[2664:2408]: FD 236 in non-blocking mode 2010.01.08 09:45:34 LOG7[2664:2408]: SO_REUSEADDR option set on accept socket 2010.01.08 09:45:34 LOG7[2664:2408]: smtp_server bound to 127.0.0.1:10025 2010.01.08 09:46:05 LOG7[2664:2408]: smtp_server accepted FD=244 from 127.0.0.1:1944 2010.01.08 09:46:05 LOG7[2664:2408]: Creating a new thread 2010.01.08 09:46:05 LOG7[2664:2408]: New thread created 2010.01.08 09:46:05 LOG7[2664:2968]: smtp_server started 2010.01.08 09:46:05 LOG7[2664:2968]: FD 244 in non-blocking mode 2010.01.08 09:46:05 LOG5[2664:2968]: smtp_server accepted connection from 127.0.0.1:1944 2010.01.08 09:46:05 LOG7[2664:2968]: FD 268 in non-blocking mode 2010.01.08 09:46:05 LOG6[2664:2968]: connect_blocking: connecting 133.x.y.z:587 2010.01.08 09:46:05 LOG7[2664:2968]: connect_blocking: s_poll_wait 133.x.y.z:587: waiting 10 seconds 2010.01.08 09:46:05 LOG5[2664:2968]: connect_blocking: connected 133.x.y.z:587 2010.01.08 09:46:05 LOG5[2664:2968]: smtp_server connected remote server from 192.168.3.118:1945 2010.01.08 09:46:05 LOG7[2664:2968]: Remote FD=268 initialized 2010.01.08 09:46:05 LOG5[2664:2968]: Negotiations for smtp (client side) started 2010.01.08 09:46:05 LOG7[2664:2968]: <- 220 smtp.example.com ESMTP Postfix 2010.01.08 09:46:05 LOG7[2664:2968]: -> 220 smtp.example.com ESMTP Postfix 2010.01.08 09:46:05 LOG7[2664:2968]: -> EHLO localhost 2010.01.08 09:46:05 LOG7[2664:2968]: <- 250-smtp.example.com 2010.01.08 09:46:05 LOG7[2664:2968]: <- 250-PIPELINING 2010.01.08 09:46:05 LOG7[2664:2968]: <- 250-SIZE 51200000 2010.01.08 09:46:05 LOG7[2664:2968]: <- 250-VRFY 2010.01.08 09:46:05 LOG7[2664:2968]: <- 250-ETRN 2010.01.08 09:46:05 LOG7[2664:2968]: <- 250-STARTTLS 2010.01.08 09:46:05 LOG7[2664:2968]: <- 250 8BITMIME 2010.01.08 09:46:05 LOG7[2664:2968]: -> STARTTLS 2010.01.08 09:46:05 LOG7[2664:2968]: <- 220 Ready to start TLS 2010.01.08 09:46:05 LOG5[2664:2968]: Protocol negotiations succeeded 2010.01.08 09:46:05 LOG7[2664:2968]: SSL state (connect): before/connect initialization 2010.01.08 09:46:05 LOG7[2664:2968]: SSL state (connect): SSLv2/v3 write client hello A 2010.01.08 09:46:05 LOG7[2664:2968]: SSL state (connect): SSLv3 read server hello A 2010.01.08 09:46:05 LOG7[2664:2968]: SSL state (connect): SSLv3 read server certificate A 2010.01.08 09:46:05 LOG7[2664:2968]: SSL state (connect): SSLv3 read server key exchange A 2010.01.08 09:46:05 LOG7[2664:2968]: SSL state (connect): SSLv3 read server done A 2010.01.08 09:46:05 LOG7[2664:2968]: SSL state (connect): SSLv3 write client key exchange A 2010.01.08 09:46:05 LOG7[2664:2968]: SSL state (connect): SSLv3 write change cipher spec A 2010.01.08 09:46:05 LOG7[2664:2968]: SSL state (connect): SSLv3 write finished A 2010.01.08 09:46:05 LOG7[2664:2968]: SSL state (connect): SSLv3 flush data 2010.01.08 09:46:05 LOG7[2664:2968]: SSL state (connect): SSLv3 read finished A 2010.01.08 09:46:05 LOG7[2664:2968]: 1 items in the session cache 2010.01.08 09:46:05 LOG7[2664:2968]: 1 client connects (SSL_connect()) 2010.01.08 09:46:05 LOG7[2664:2968]: 1 client connects that finished 2010.01.08 09:46:05 LOG7[2664:2968]: 0 client renegotiations requested 2010.01.08 09:46:05 LOG7[2664:2968]: 0 server connects (SSL_accept()) 2010.01.08 09:46:05 LOG7[2664:2968]: 0 server connects that finished 2010.01.08 09:46:05 LOG7[2664:2968]: 0 server renegotiations requested 2010.01.08 09:46:05 LOG7[2664:2968]: 0 session cache hits 2010.01.08 09:46:05 LOG7[2664:2968]: 0 external session cache hits 2010.01.08 09:46:05 LOG7[2664:2968]: 0 session cache misses 2010.01.08 09:46:05 LOG7[2664:2968]: 0 session cache timeouts 2010.01.08 09:46:05 LOG6[2664:2968]: SSL connected: new session negotiated 2010.01.08 09:46:05 LOG6[2664:2968]: Negotiated ciphers: DHE-RSA-AES256-SHA SSLv3 Kx=DH Au=RSA Enc=AES(256) Mac=SHA1 2010.01.08 09:46:05 LOG7[2664:2968]: SSL socket closed on SSL_read 2010.01.08 09:46:05 LOG7[2664:2968]: Socket write shutdown 2010.01.08 09:46:05 LOG5[2664:2968]: Connection closed: 625 bytes sent to SSL, 286 bytes sent to socket 2010.01.08 09:46:05 LOG7[2664:2968]: smtp_server finished (0 left) 2010.01.08 09:50:06 LOG7[2372:3760]: RAND_status claims sufficient entropy for the PRNG with "sslVersion=SSLv2", 2010.01.08 09:50:50 LOG7[2692:3460]: RAND_status claims sufficient entropy for the PRNG 2010.01.08 09:50:50 LOG7[2692:3460]: PRNG seeded successfully 2010.01.08 09:50:50 LOG7[2692:3460]: SSL context initialized for service smtp_server 2010.01.08 09:50:50 LOG5[2692:3460]: stunnel 4.28 on x86-pc-mingw32-gnu with OpenSSL 0.9.8l 5 Nov 2009 2010.01.08 09:50:50 LOG5[2692:3460]: Threading:WIN32 SSL:ENGINE Sockets:SELECT,IPv6 2010.01.08 09:50:50 LOG5[2692:2496]: No limit detected for the number of clients 2010.01.08 09:50:50 LOG7[2692:2496]: FD 236 in non-blocking mode 2010.01.08 09:50:50 LOG7[2692:2496]: SO_REUSEADDR option set on accept socket 2010.01.08 09:50:50 LOG7[2692:2496]: smtp_server bound to 127.0.0.1:10025 2010.01.08 09:51:04 LOG7[2692:2496]: smtp_server accepted FD=244 from 127.0.0.1:1955 2010.01.08 09:51:04 LOG7[2692:2496]: Creating a new thread 2010.01.08 09:51:04 LOG7[2692:2496]: New thread created 2010.01.08 09:51:04 LOG7[2692:2056]: smtp_server started 2010.01.08 09:51:04 LOG7[2692:2056]: FD 244 in non-blocking mode 2010.01.08 09:51:04 LOG5[2692:2056]: smtp_server accepted connection from 127.0.0.1:1955 2010.01.08 09:51:04 LOG7[2692:2056]: FD 268 in non-blocking mode 2010.01.08 09:51:04 LOG6[2692:2056]: connect_blocking: connecting 133.x.y.z:587 2010.01.08 09:51:04 LOG7[2692:2056]: connect_blocking: s_poll_wait 133.x.y.z:587: waiting 10 seconds 2010.01.08 09:51:04 LOG5[2692:2056]: connect_blocking: connected 133.x.y.z:587 2010.01.08 09:51:04 LOG5[2692:2056]: smtp_server connected remote server from 192.168.3.118:1956 2010.01.08 09:51:04 LOG7[2692:2056]: Remote FD=268 initialized 2010.01.08 09:51:04 LOG5[2692:2056]: Negotiations for smtp (client side) started 2010.01.08 09:51:04 LOG7[2692:2056]: <- 220 smtp.example.com ESMTP Postfix 2010.01.08 09:51:04 LOG7[2692:2056]: -> 220 smtp.example.com ESMTP Postfix 2010.01.08 09:51:04 LOG7[2692:2056]: -> EHLO localhost 2010.01.08 09:51:04 LOG7[2692:2056]: <- 250-smtp.example.com 2010.01.08 09:51:04 LOG7[2692:2056]: <- 250-PIPELINING 2010.01.08 09:51:04 LOG7[2692:2056]: <- 250-SIZE 51200000 2010.01.08 09:51:04 LOG7[2692:2056]: <- 250-VRFY 2010.01.08 09:51:04 LOG7[2692:2056]: <- 250-ETRN 2010.01.08 09:51:04 LOG7[2692:2056]: <- 250-STARTTLS 2010.01.08 09:51:04 LOG7[2692:2056]: <- 250 8BITMIME 2010.01.08 09:51:04 LOG7[2692:2056]: -> STARTTLS 2010.01.08 09:51:04 LOG7[2692:2056]: <- 220 Ready to start TLS 2010.01.08 09:51:04 LOG5[2692:2056]: Protocol negotiations succeeded 2010.01.08 09:51:04 LOG7[2692:2056]: SSL state (connect): before/connect initialization 2010.01.08 09:51:04 LOG7[2692:2056]: SSL state (connect): SSLv2 write client hello A 2010.01.08 09:51:04 LOG7[2692:2056]: SSL state (connect): SSLv2 read server hello A 2010.01.08 09:51:04 LOG7[2692:2056]: SSL state (connect): SSLv2 write client master key A 2010.01.08 09:51:04 LOG7[2692:2056]: SSL state (connect): SSLv2 client start encryption 2010.01.08 09:51:04 LOG7[2692:2056]: SSL state (connect): SSLv2 write client finished A 2010.01.08 09:51:04 LOG7[2692:2056]: SSL state (connect): SSLv2 read server verify A 2010.01.08 09:51:04 LOG7[2692:2056]: SSL state (connect): SSLv2 read server finished A 2010.01.08 09:51:04 LOG7[2692:2056]: 1 items in the session cache 2010.01.08 09:51:04 LOG7[2692:2056]: 1 client connects (SSL_connect()) 2010.01.08 09:51:04 LOG7[2692:2056]: 1 client connects that finished 2010.01.08 09:51:04 LOG7[2692:2056]: 0 client renegotiations requested 2010.01.08 09:51:04 LOG7[2692:2056]: 0 server connects (SSL_accept()) 2010.01.08 09:51:04 LOG7[2692:2056]: 0 server connects that finished 2010.01.08 09:51:04 LOG7[2692:2056]: 0 server renegotiations requested 2010.01.08 09:51:04 LOG7[2692:2056]: 0 session cache hits 2010.01.08 09:51:04 LOG7[2692:2056]: 0 external session cache hits 2010.01.08 09:51:04 LOG7[2692:2056]: 0 session cache misses 2010.01.08 09:51:04 LOG7[2692:2056]: 0 session cache timeouts 2010.01.08 09:51:04 LOG6[2692:2056]: SSL connected: new session negotiated 2010.01.08 09:51:04 LOG6[2692:2056]: Negotiated ciphers: DES-CBC3-MD5 SSLv2 Kx=RSA Au=RSA Enc=3DES(168) Mac=MD5 2010.01.08 09:51:04 LOG7[2692:2056]: SSL closed on SSL_read 2010.01.08 09:51:04 LOG7[2692:2056]: Socket write shutdown 2010.01.08 09:51:04 LOG7[2692:2056]: Socket closed on read 2010.01.08 09:51:04 LOG7[2692:2056]: SSL write shutdown 2010.01.08 09:51:04 LOG5[2692:2056]: Connection closed: 626 bytes sent to SSL, 286 bytes sent to socket 2010.01.08 09:51:04 LOG7[2692:2056]: smtp_server finished (0 left) However, with OpenSSL older than 0.9.8i it can connect without "sslVersion=all" or with "sslVersion=SSLv3", and log tells SSLv3 was used. Why stunnel cannot connect with OpenSSL newer than 0.9.8j ? --- Tsurutani Naoki turutani(a)scphys.kyoto-u.ac.jp

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Re: [stunnel-users] https not working with debug level 4,5,6,7
by ankur.agarwal＠wipro.com 07 Jan '10

07 Jan '10

Hi, When debug level is set to 4 , 5 , 6 , 7,https connection is not working.we have environment where we run the stunnel on a unit and try conncting it from windows machine through https connection.But this connection is not working for any debug level >3.can anybody help me.my sample stunnel file is : ; Sample stunnel configuration file by Michal Trojnara 2003-2006 ; Some options used here may not be adequate for your particular configuration ; Certificate/key is needed in server mode and optional in client mode ; The default certificate is provided only for testing and should not ; be used in a production environment cert = /usr/local/etc/config/certs/cert.pem key = /usr/local/etc/config/certs/privkey.pem ; Some performance tunings ;socket = l:TCP_NODELAY=1 ;socket = r:TCP_NODELAY=1 ; Workaround for Eudora bug ;options = DONT_INSERT_EMPTY_FRAGMENTS ; Authentication stuff verify = 1 ; Don't forget to c_rehash CApath CApath = /usr/local/etc/config/certs ; It's often easier to use CAfile ;CAfile = certs.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 = /tmp/stunnel.log ; Use it for client mode client = no ; Service-level configuration ; [pop3s] ; accept = 995 ; connect = 110 ; [imaps] ; accept = 993 ; connect = 143 ; [ssmtp] ; accept = 465 ; connect = 25 ;[https] accept = 443 connect = 80 TIMEOUTclose = 10 ; vim:ft=dosini Please do not print this email unless it is absolutely necessary. The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com

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Previous Post Please Disregard!
by johnnyb mee 03 Jan '10

03 Jan '10

I finally seem to have stunnel up ,and running with Agent ver 2.0 newsreader. I had to do some more research on this, and thru patience, and many config changes I believe stunnel is now supplying SSL for my agent newsreader. Not an easy task for a total windows dummy like me though. Never have got the Linux thing. I guess it is the having to deal with scripts issue continually that scares the hell out of me!! IF anyone needs the procedure in the future for this let me know and I will send it to them! jb

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How to setup forte agent to work with stunnel latest version.
by johnnyb mee 03 Jan '10

03 Jan '10

I have been trying to get stunnel to work with Agent 2.0 newsreader so that I can use SSL from my news server. I have read the faq and gone thru alot of previous posts concerning this and found this one entry suggestion for the stunnel.config file in order to setup SSL to work with Agent which unfortunately has no SSL capabilities at all. It is suggested to use this entry to get both the newserver and client to work thru using stunnel as a proxy server service basically. c:\program files\stunnel -c -d 127.0.0.1:119 -r unlimited.newshosting.com:563 I copied and pasted the entry changing the usenet server to the above, and now I can no longer get stunnel to start at all. I am getting an error message stating I need to check the logfile to determine what is causing the error. The actual logfile error is as follows: 2010.01.02 23:12:59 LOG7[3456:1988]: RAND_status claims sufficient entropy for the PRNG 2010.01.02 23:12:59 LOG7[3456:1988]: PRNG seeded successfully 2010.01.02 23:12:59 LOG7[3456:1988]: Certificate: stunnel.pem 2010.01.02 23:12:59 LOG7[3456:1988]: Certificate loaded 2010.01.02 23:12:59 LOG7[3456:1988]: Key file: stunnel.pem 2010.01.02 23:12:59 LOG7[3456:1988]: Private key loaded 2010.01.02 23:12:59 LOG7[3456:1988]: SSL context initialized for service pop3s 2010.01.02 23:12:59 LOG7[3456:1988]: Certificate: stunnel.pem 2010.01.02 23:12:59 LOG7[3456:1988]: Certificate loaded 2010.01.02 23:12:59 LOG7[3456:1988]: Key file: stunnel.pem 2010.01.02 23:12:59 LOG7[3456:1988]: Private key loaded 2010.01.02 23:12:59 LOG7[3456:1988]: SSL context initialized for service imaps file stunnel.conf line 55: No '=' found 2010.01.02 23:12:59 LOG3[3456:1988]: Server is down As you can ascertain I am no linux expert at all so working with startup scripts such as this is challenging to say the least. Is the entry I pasted into the config file incorrect or not pointing to the right path for the config file directory or what do you think is missing? I am using Windows XP Pro and know that the actual file for the config resides in windows/system32 folder. Any input on this would be very much appreciated and thanks in advance all. jb

1 0

what's wrong? error=unable to get local issuer certificate
by Carsten Krüger 29 Dec '09

29 Dec '09

I think it should work, * should match homie 1. connected with "openssl s_client -connect mail.neroon.com:995", pasted cert to dreamhost.pem 2. used this -----------stunnel.conf------------- debug=7 client = yes [pop3] accept = 110 connect = homie.mail.dreamhost.com:995 verify=1 CAfile=c:\temp\dreamhost.pem -----------stunnel.conf------------- 3. connect to localost:110, got "unable to get local issuer certificate 2009.12.29 16:04:25 LOG7[3044:5700]: Snagged 64 random bytes from C:/.rnd 2009.12.29 16:04:25 LOG7[3044:5700]: Wrote 0 new random bytes to C:/.rnd 2009.12.29 16:04:25 LOG7[3044:5700]: RAND_status claims sufficient entropy for the PRNG 2009.12.29 16:04:25 LOG7[3044:5700]: PRNG seeded successfully 2009.12.29 16:04:25 LOG7[3044:5700]: Loaded verify certificates from c:\temp\dreamhost.pem 2009.12.29 16:04:25 LOG7[3044:5700]: Loaded c:\temp\dreamhost.pem revocation lookup file 2009.12.29 16:04:25 LOG7[3044:5700]: SSL context initialized for service pop3 2009.12.29 16:04:25 LOG5[3044:5700]: stunnel 4.29 on x86-pc-mingw32-gnu with OpenSSL 0.9.8l 5 Nov 2009 2009.12.29 16:04:25 LOG5[3044:5700]: Threading:WIN32 SSL:ENGINE Sockets:SELECT,IPv6 2009.12.29 16:04:25 LOG5[3044:4320]: No limit detected for the number of clients 2009.12.29 16:04:25 LOG7[3044:4320]: FD 1832 in non-blocking mode 2009.12.29 16:04:25 LOG7[3044:4320]: SO_REUSEADDR option set on accept socket 2009.12.29 16:04:25 LOG7[3044:4320]: pop3 bound to 0.0.0.0:110 2009.12.29 16:04:40 LOG7[3044:4320]: pop3 accepted FD=1808 from 127.0.0.1:3257 2009.12.29 16:04:40 LOG7[3044:4320]: Creating a new thread 2009.12.29 16:04:40 LOG7[3044:4320]: New thread created 2009.12.29 16:04:40 LOG7[3044:2340]: pop3 started 2009.12.29 16:04:40 LOG7[3044:2340]: FD 1808 in non-blocking mode 2009.12.29 16:04:40 LOG5[3044:2340]: pop3 accepted connection from 127.0.0.1:3257 2009.12.29 16:04:40 LOG7[3044:2340]: FD 1768 in non-blocking mode 2009.12.29 16:04:40 LOG6[3044:2340]: connect_blocking: connecting 208.97.132.208:995 2009.12.29 16:04:40 LOG7[3044:2340]: connect_blocking: s_poll_wait 208.97.132.208:995: waiting 10 seconds 2009.12.29 16:04:40 LOG5[3044:2340]: connect_blocking: connected 208.97.132.208:995 2009.12.29 16:04:40 LOG5[3044:2340]: pop3 connected remote server from 192.168.0.2:3258 2009.12.29 16:04:40 LOG7[3044:2340]: Remote FD=1768 initialized 2009.12.29 16:04:40 LOG7[3044:2340]: SSL state (connect): before/connect initialization 2009.12.29 16:04:40 LOG7[3044:2340]: SSL state (connect): SSLv3 write client hello A 2009.12.29 16:04:40 LOG7[3044:2340]: SSL state (connect): SSLv3 read server hello A 2009.12.29 16:04:40 LOG4[3044:2340]: VERIFY ERROR: depth=0, error=unable to get local issuer certificate: /C=US/ST=California/L=Brea/O=Dreamhost.com/OU=Security/CN=*.mail.dreamhost.com/emailAddress=support(a)dreamhost.com 2009.12.29 16:04:40 LOG7[3044:2340]: SSL alert (write): fatal: bad certificate 2009.12.29 16:04:40 LOG3[3044:2340]: SSL_connect: 14090086: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed 2009.12.29 16:04:40 LOG5[3044:2340]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2009.12.29 16:04:40 LOG7[3044:2340]: pop3 finished (0 left)

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Using stunnel instead of SSL API
by Vladimir Stariradev 24 Dec '09

24 Dec '09

Hi Guys, I'm working on a java mobile app (J2ME MIDP 2.0) which connects to a java server, which I created. The java mobile app is an instant messenger. I want to use stunnel to encrypt the communication between the app and the server. At the moment the server runs on my localhost on port 5555 and accepts connections from the mobile device emulator I have running on the same machine. Eventually I want to transfer the mobile app on to my mobile and use it from there. My machine is running the following versions stunnel 4.29 on x86-pc-mingw32-gnu with OpenSSL 0.9.8l on Windows 7 x64. I have not yet configured a pam or config file but I would like to continue listening on port 5555 with my own certificate (but for now any will do). Will the fact that I'm running both my server and device emulator on one machine mean that it'll bypass stunnel and I'll never know if it works or not? Should I have my mobile app use SecureConnection (SSL encrypted) class? In that case, I'd have to make the server listen for SSL connections too. That would defeat the purpose of stunnel. Help on configuration is welcome. Thanks for reading, I'm looking forward to your replies Vladimir

2 1

privileges not dropped before libwrap processes are spawned
by Micah Anderson 21 Dec '09

21 Dec '09

Hi, I recently stumbled on http://mirt.net/pipermail/stunnel-users/2008-May/001977.html which is exactly what I am seeing with version 4.27 of stunnel, namely the daemon is not switching to the setuid/setgid specified in the config before it is spawned. This means that I get 6 processes, 5 run as root with only one (albeit the one lisenting on the specified sockets) dropping privs to the specified user. The follow-up response from Mike was: I'll modify stunnel to delay spawning libwrap processes until privileges are dropped. and indeed, I find in the Changelog file for version 4.25 the following Bugfixes: * Bugfixes - Spawning libwrap processes delayed until privileges are dropped. However, it seems that either this fix either didn't make it in, or it somehow managed to creep its way back out because it is happening in 4.27. Thanks, micah

2 3

BBwin hanging windows
by Gregory Wege 18 Dec '09

18 Dec '09

Hey Guys, We have the following problem: Bbwin is sending traffic to 2 monitoring servers and is encrypted via stunnel. If one of the monitoring servers goes down, the number of ports being used by bbwin client increases to the point where the box is unusable - no more ports available on the windows box being monitored. If we kill the bbwin process, the problem goes away temporarily - after a short period of time, the problem returns. The problem continues even after the failed hobbit server recovers, and only clears up when we kill the bbwin process. * Windows version Server 2003 * bbwin versions 0.11, 0.12 * stunnel version 4.25 * hobbit server version 4.2.2 Output of the stunnel log shows the following error: 2009.12.16 06:56:19 LOG7[2336:2460]: New thread created 2009.12.16 06:56:19 LOG7[2336:4016]: hobbit_ssl started 2009.12.16 06:56:19 LOG7[2336:4016]: FD 356 in non-blocking mode 2009.12.16 06:56:19 LOG7[2336:4016]: TCP_NODELAY option set on local socket 2009.12.16 06:56:19 LOG5[2336:4016]: hobbit_ssl accepted connection from 127.0.0.1:1725 2009.12.16 06:56:19 LOG7[2336:4016]: FD 396 in non-blocking mode 2009.12.16 06:56:19 LOG6[2336:4016]: connect_blocking: connecting 10.132.55.24:1982 2009.12.16 06:56:19 LOG3[2336:4016]: connect_blocking: connect 10.132.55.24:1982: No buffer space available (WSAENOBUFS) (10055) 2009.12.16 06:56:19 LOG5[2336:4016]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2009.12.16 06:56:19 LOG7[2336:4016]: hobbit_ssl finished (0 left) Can something be added to my stunnel.conf to prevent this from happening? Any help would be greatly appreciated. Thanks.

2 2

Hey Stunnel-Users, I forgot to mention...
by Sreejith Mohan Menon 17 Dec '09

17 Dec '09

1 0

Tunnel iPhone - Server
by LoLoVioLo 14 Dec '09

14 Dec '09

Hi all, It is my first post. Sorry if common question but didn't find answer in archives or google. The fact is that I am using an iPhone with a data plan that only allow ports 80 and 443 (http and https). My aim is to be able to use all ports (mail, ftp, msn, etc). The idea is to tunnel all TCP connections between my computer here and my server at home. iPhone <----port-443----> Linux Server <----all-ports----> Internet I know there is alternatives for each service (webmail, webmessenger, etc.) but I think that it is technically possible to have something running that allow using of usual software. I also know that this usage is typically VPN but there is no VPN client for iPhone that allow custom ports and not sure my data plan can route GRE protocol. By the way STunnel was ported to the iPhone. There is some hope. I am not sure Stunnel is the best way to do that and not even sure that Stunnel can do it but hope you can advice. Thanks for your help. LoLoVioLo

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Question (simple one I think)
by Reinier van der Gugten 09 Dec '09

09 Dec '09

Question: On the server, port 443 is already in use by a different service. However I require STunnel to communicate also on port 443. I thought, that perhaps I can obtain a second IP address and forward that trafic from the router to port 444 (or any other avail port). Then I can let Stunnel listen to port 444 and thus it would work. The firewall has to translate the 444 back to the 443 when transmitting data ofcourse. Is this the right way to go? Or ca I do this using one and the same IP (but then there would be 2 services listning to the same port right)? Thanks. Reinier

3 2

Your opinion on sessiond
by Michal Trojnara 04 Dec '09

04 Dec '09

Dear Users, I'm eager to hear your comments, suggestions or issues regarding sessiond. Feel free to use the stunnel-users mailing list or the bug tracking system: https://stunnel.mirt.net/?page=bts Best regards, Mike

2 2

Stunnel 4.29 released
by Michal Trojnara 02 Dec '09

02 Dec '09

The ChangeLog entry: Version 4.29, 2009.12.02, urgency: MEDIUM: * New feature sponsored by Searchtech Limited http://www.astraweb.com/ - sessiond, a high performance SSL session cache was built for stunnel. A new service-level "sessiond" option was added. sessiond is available for download on ftp://stunnel.mirt.net/stunnel/sessiond/ . stunnel clusters will be a lot faster, now! * Bugfixes - "execargs" defaults to the "exec" parameter (thx to Peter Pentchev). - Compilation fixes added for AIX and old versions of OpenSSL. - Missing "fips" option was added to the manual. SHA-1 value for stunnel-4.29.tar.gz: f93ac9054c62b1db0dcf44f668d323d82cc0f413 Home page: http://stunnel.mirt.net/ Download: ftp://stunnel.mirt.net/stunnel/ Best regards, Michal Trojnara

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Still having issues compiling Stunnel on aix 5.3. SOL_TCP not defined? Please help
by Geoff 02 Dec '09

02 Dec '09

I installed gcc and the latest version of openssl on my aix 5.3 server. I did the ./configure and all went well. When I did the make I recieved the following error. if gcc -DPACKAGE_NAME=\"stunnel\" -DPACKAGE_TARNAME=\"stunnel\" -DPACKAGE_VERSION=\"4.28\" -DPACKAGE_STRING=\"stunnel\ 4.28\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE=\"stunnel\" -DVERSION=\"4.28\" -DHOST=\"powerpc-ibm-aix5.3.0.0\" -DCPU_POWERPC=1 -DVENDOR_IBM=1 -DOS_AIX5_3_0_0=1 -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DSIZEOF_UNSIGNED_CHAR=1 -DSIZEOF_UNSIGNED_SHORT=2 -DSIZEOF_UNSIGNED_INT=4 -DSIZEOF_UNSIGNED_LONG=4 -DHAVE_DEV_PTS_AND_PTC=1 -DRANDOM_FILE=\"/dev/urandom\" -DHAVE_UCONTEXT_H=1 -DHAVE_PTHREAD_H=1 -DHAVE_SYS_SELECT_H=1 -DHAVE_POLL_H=1 -DHAVE_SYS_POLL_H=1 -DHAVE_SYS_IOCTL_H=1 -DHAVE_STROPTS_H=1 -DHAVE_GRP_H=1 -DHAVE_UNISTD_H=1 -DHAVE_SYS_RESOURCE_H=1 -DHAVE_SYS_SOCKET_H=1 -DHAVE_STRUCT_MSGHDR_MSG_CONTROL=1 -DHAVE_MSGHDR_MSG_CONTROL=1 -DHAVE_LIBDL=1 -DHAVE_LIBZ=1 -DHAVE_LIBPTHREAD=1 -DUSE_PTHREAD=1 -DHAVE_SNPRINTF=1 -DHAVE_VSNPRINTF=1 -DHAVE_WAITPID=1 -DHAVE_WAIT4=1 -DHAVE_SETSID=1 -DHAVE_SETGROUPS=1 -DHAVE_CHROOT=1 -DHAVE_SYSCONF=1 -DHAVE_GETRLIMIT=1 -DHAVE_PTHREAD_SIGMASK=1 -DHAVE_LOCALTIME_R=1 -DHAVE_GETCONTEXT=1 -DHAVE_POLL=1 -DHAVE_ENDHOSTENT=1 -DHAVE_GETNAMEINFO=1 -DHAVE_GETADDRINFO=1 -DHAVE_OPENSSL=1 -Dssldir=\"/usr\" -DHAVE_OSSL_ENGINE_H=1 -DUSE_IPv6=1 -I. -I. -I/usr/kerberos/include -DLIBDIR='"/usr/local/lib/stunnel"' -DCONFDIR='"/usr/local/etc/stunnel"' -DPIDFILE='"/usr/local/var/run/stunnel/stunnel.pid"' -g -O2 -Wall -Wshadow -Wcast-align -Wpointer-arith -I/usr/include -MT options.o -MD -MP -MF ".deps/options. Tpo" -c -o options.o options.c; then mv -f ".deps/options.Tpo" ".deps/options.Po"; else rm -f ".deps/options.Tpo"; exit 1; fi options.c:1773: error: 'SOL_TCP' undeclared here (not in a function) make: 1254-004 The error code from the last command is 1. Stop. make: 1254-004 The error code from the last command is 1. The SOL_TCP option is not defined on AIX. I am hoping this can be applied to SOL_SOCKET which is defined. So... I changed the following lines in the options.c program #ifdef TCP_KEEPCNT /* {"TCP_KEEPCNT", SOL_TCP, TCP_KEEPCNT, TYPE_INT, DEF_VALS}, */ {"TCP_KEEPCNT", SOL_SOCKET, TCP_KEEPCNT, TYPE_INT, DEF_VALS}, #endif #ifdef TCP_KEEPIDLE /* {"TCP_KEEPIDLE", SOL_TCP, TCP_KEEPIDLE, TYPE_INT, DEF_VALS}, */ {"TCP_KEEPIDLE", SOL_SOCKET, TCP_KEEPIDLE, TYPE_INT, DEF_VALS}, #endif #ifdef TCP_KEEPINTVL /* {"TCP_KEEPINTVL", SOL_TCP, TCP_KEEPINTVL, TYPE_INT, DEF_VALS},*/ {"TCP_KEEPINTVL", SOL_SOCKET, TCP_KEEPINTVL, TYPE_INT, DEF_VALS}, I can compile the code without error at this point. So... my question is has anyone else made a similar change to get the code to compile on AIX 5.3? If not, can you please tell me what configuration options you used to make stunnel work. Thanks for any help you can provide. I am at my wits end here and pretty much my capability in compiling code. Thanks in advance, Geoff

1 0

Upgrade From 4.27 to 4.28? Or Wait for Next Version?
by Jeff Salisbury 01 Dec '09

01 Dec '09

Greetings, I've noticed some problems with v4.28 (posted in this group). Is there any compelling reason to upgrade from 4.27 to 4.28? Or, should we wait for the problems in 4.28 to be fixed in a new version and then upgrade? Regards, Jeff

1 0

build problem with 4.28 on SLES9 (SSL again)
by Andreas Vetter 27 Nov '09

27 Nov '09

Hi, there is a build problem with 4.28 on a SLES 9. May be similar to the no_ticket problem. Here is the interesting part of build log: options.c: In function `parse_ssl_option': options.c:1714: error: `SSL_OP_NO_QUERY_MTU' undeclared (first use in this function) options.c:1714: error: (Each undeclared identifier is reported only once options.c:1714: error: for each function it appears in.) options.c:1715: error: `SSL_OP_COOKIE_EXCHANGE' undeclared (first use in this function) options.c:1724: error: `SSL_OP_SINGLE_ECDH_USE' undeclared (first use in this function) make[1]: *** [options.o] Error 1 make[1]: Leaving directory `/usr/src/packages/BUILD/stunnel-4.28/src' any hints? -- Mit freundlichen Gruessen, Andreas Vetter Informations- und Kommunikationstechnik Fakultaet fuer Physik und Astronomie Universitaet Wuerzburg

2 2

Help in making stunnel please.
by Geoff 26 Nov '09

26 Nov '09

Compiling on aix 5.3 ./configure runs fine when I run make I get this error... I am using the latest version of ssl. # make Making all in src source='env.c' object='env.lo' libtool=yes DEPDIR=.deps depmode=aix /bin/sh ../auto/depcomp /bin/sh ../libtool --tag=CC --mode=compile cc -qlanglvl=ansi -DPACKAGE_NAME=\"stunnel\" -DPACKAGE_TARNAME=\"stunnel\" -DPACKAGE_VERSION=\"4.28\" -DPACKAGE_STRING=\"stunnel\ 4.28\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE=\"stunnel\" -DVERSION=\"4.28\" -DHOST=\"powerpc-ibm-aix5.3.0.0\" -DCPU_POWERPC=1 -DVENDOR_IBM=1 -DOS_AIX5_3_0_0=1 -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DSIZEOF_UNSIGNED_CHAR=1 -DSIZEOF_UNSIGNED_SHORT=2 -DSIZEOF_UNSIGNED_INT=4 -DSIZEOF_UNSIGNED_LONG=4 -DHAVE_DEV_PTS_AND_PTC=1 -DRANDOM_FILE=\"/dev/urandom\" -DHAVE_UCONTEXT_H=1 -DHAVE_PTHREAD_H=1 -DHAVE_SYS_SELECT_H=1 -DHAVE_POLL_H=1 -DHAVE_SYS_POLL_H=1 -DHAVE_SYS_IOCTL_H=1 -DHAVE_STROPTS_H=1 -DHAVE_GRP_H=1 -DHAVE_UNISTD_H=1 -DHAVE_SYS_RESOURCE_H=1 -DHAVE_SYS_SOCKET_H=1 -DHAVE_STRUCT_MSGHDR_MSG_CONTROL=1 -DHAVE_MSGHDR_MSG_CONTROL=1 -DHAVE_LIBDL=1 -DHAVE_LIBZ=1 -DHAVE_LIBPTHREAD=1 -DUSE_PTHREAD=1 -DHAVE_SNPRINTF=1 -DHAVE_VSNPRINTF=1 -DHAVE_WAITPID=1 -DHAVE_WAIT4=1 -DHAVE_SETSID=1 -DHAVE_SETGROUPS=1 -DHAVE_CHROOT=1 -DHAVE_SYSCONF=1 -DHAVE_GETRLIMIT=1 -DHAVE_PTHREAD_SIGMASK=1 -DHAVE_LOCALTIME_R=1 -DHAVE_GETCONTEXT=1 -DHAVE_POLL=1 -DHAVE_ENDHOSTENT=1 -DHAVE_GETNAMEINFO=1 -DHAVE_GETADDRINFO=1 -DHAVE_OPENSSL=1 -Dssldir=\"/usr\" -DHAVE_OSSL_ENGINE_H=1 -DUSE_IPv6=1 -I. -I. -I/usr/kerberos/include -DLIBDIR='"/usr/local/lib/stunnel"' -DCONFDIR='"/usr/local/etc/stunnel"' -DPIDFILE='"/usr/local/var/run/stunnel/stunnel.pid"' -g -I/usr/include -c -o env.lo env.c cc -qlanglvl=ansi -DPACKAGE_NAME=\"stunnel\" -DPACKAGE_TARNAME=\"stunnel\" -DPACKAGE_VERSION=\"4.28\" "-DPACKAGE_STRING=\"stunnel 4.28\"" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE=\"stunnel\" -DVERSION=\"4.28\" -DHOST=\"powerpc-ibm-aix5.3.0.0\" -DCPU_POWERPC=1 -DVENDOR_IBM=1 -DOS_AIX5_3_0_0=1 -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DSIZEOF_UNSIGNED_CHAR=1 -DSIZEOF_UNSIGNED_SHORT=2 -DSIZEOF_UNSIGNED_INT=4 -DSIZEOF_UNSIGNED_LONG=4 -DHAVE_DEV_PTS_AND_PTC=1 -DRANDOM_FILE=\"/dev/urandom\" -DHAVE_UCONTEXT_H=1 -DHAVE_PTHREAD_H=1 -DHAVE_SYS_SELECT_H=1 -DHAVE_POLL_H=1 -DHAVE_SYS_POLL_H=1 -DHAVE_SYS_IOCTL_H=1 -DHAVE_STROPTS_H=1 -DHAVE_GRP_H=1 -DHAVE_UNISTD_H=1 -DHAVE_SYS_RESOURCE_H=1 -DHAVE_SYS_SOCKET_H=1 -DHAVE_STRUCT_MSGHDR_MSG_CONTROL=1 -DHAVE_MSGHDR_MSG_CONTROL=1 -DHAVE_LIBDL=1 -DHAVE_LIBZ=1 -DHAVE_LIBPTHREAD=1 -DUSE_PTHREAD=1 -DHAVE_SNPRINTF=1 -DHAVE_VSNPRINTF=1 -DHAVE_WAITPID=1 -DHAVE_WAIT4=1 -DHAVE_SETSID=1 -DHAVE_SETGROUPS=1 -DHAVE_CHROOT=1 -DHAVE_SYSCONF=1 -DHAVE_GETRLIMIT=1 -DHAVE_PTHREAD_SIGMASK=1 -DHAVE_LOCALTIME_R=1 -DHAVE_GETCONTEXT=1 -DHAVE_POLL=1 -DHAVE_ENDHOSTENT=1 -DHAVE_GETNAMEINFO=1 -DHAVE_GETADDRINFO=1 -DHAVE_OPENSSL=1 -Dssldir=\"/usr\" -DHAVE_OSSL_ENGINE_H=1 -DUSE_IPv6=1 -I. -I. -I/usr/kerberos/include -DLIBDIR=\"/usr/local/lib/stunnel\" -DCONFDIR=\"/usr/local/etc/stunnel\" -DPIDFILE=\"/usr/local/var/run/stunnel/stunnel.pid\" -g -I/usr/include -c -M env.c -DPIC -o .libs/env.o "/usr/include/sys/socket.h", line 141.9: 1506-213 (S) Macro name getpeername cannot be redefined. "/usr/include/sys/socket.h", line 141.9: 1506-358 (I) "getpeername" is defined on line 39 of env.c. make: 1254-004 The error code from the last command is 1. Stop. make: 1254-004 The error code from the last command is 1. Here is the configure # ./configure configure: **************************************** initialization checking for a BSD-compatible install... auto/install-sh -c checking whether build environment is sane... yes checking for gawk... no checking for mawk... no checking for nawk... nawk checking whether make sets $(MAKE)... yes checking build system type... powerpc-ibm-aix5.3.0.0 checking host system type... powerpc-ibm-aix5.3.0.0 checking for gcc... no checking for cc... cc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... no checking whether cc accepts -g... yes checking for cc option to accept ISO C89... -qlanglvl=ansi checking for style of include used by make... GNU checking dependency style of cc -qlanglvl=ansi... aix checking for a BSD-compatible install... auto/install-sh -c checking whether make sets $(MAKE)... (cached) yes configure: **************************************** libtool checking for a sed that does not truncate output... /usr/bin/sed checking for grep that handles long lines and -e... /usr/bin/grep checking for egrep... /usr/bin/grep -E checking for non-GNU ld... /usr/bin/ld checking if the linker (/usr/bin/ld) is GNU ld... no checking for /usr/bin/ld option to reload object files... -r checking for BSD-compatible nm... /usr/bin/nm -B checking whether ln -s works... yes checking how to recognize dependent libraries... pass_all checking how to run the C preprocessor... cc -qlanglvl=ansi -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking dlfcn.h usability... yes checking dlfcn.h presence... yes checking for dlfcn.h... yes checking for g++... no checking for c++... no checking for gpp... no checking for aCC... no checking for CC... no checking for cxx... no checking for cc++... no checking for cl.exe... no checking for FCC... no checking for KCC... no checking for RCC... no checking for xlC_r... no checking for xlC... no checking whether we are using the GNU C++ compiler... no checking whether g++ accepts -g... no checking dependency style of g++... none checking for g77... no checking for xlf... no checking for f77... no checking for frt... no checking for pgf77... no checking for cf77... no checking for fort77... no checking for fl32... no checking for af77... no checking for xlf90... no checking for f90... no checking for pgf90... no checking for pghpf... no checking for epcf90... no checking for gfortran... no checking for g95... no checking for xlf95... no checking for f95... no checking for fort... no checking for ifort... no checking for ifc... no checking for efc... no checking for pgf95... no checking for lf95... no checking for ftn... no checking whether we are using the GNU Fortran 77 compiler... no checking whether accepts -g... no checking the maximum length of command line arguments... 18432 checking command to parse /usr/bin/nm -B output from cc -qlanglvl=ansi object... ok checking for objdir... .libs checking for ar... ar checking for ranlib... ranlib checking for strip... strip checking for cc -qlanglvl=ansi option to produce PIC... checking if cc -qlanglvl=ansi static flag -bnso -bI:/lib/syscalls.exp works... no checking if cc -qlanglvl=ansi supports -c -o file.o... yes checking whether the cc -qlanglvl=ansi linker (/usr/bin/ld) supports shared libraries... yes checking dynamic linker characteristics... aix5.3.0.0 ld.so checking how to hardcode library paths into programs... immediate checking whether stripping libraries is possible... no checking if libtool supports shared libraries... yes checking whether to build shared libraries... yes checking whether to build static libraries... no configure: creating libtool appending configuration tag "CXX" to libtool appending configuration tag "F77" to libtool configure: **************************************** types checking for unsigned char... yes checking size of unsigned char... 1 checking for unsigned short... yes checking size of unsigned short... 2 checking for unsigned int... yes checking size of unsigned int... 4 checking for unsigned long... yes checking size of unsigned long... 4 checking for socklen_t... yes configure: **************************************** PTY device files checking for "/dev/ptmx"... no checking for "/dev/ptc"... yes configure: **************************************** entropy checking for "/dev/urandom"... yes configure: **************************************** default group checking for default group... nobody configure: **************************************** header files checking ucontext.h usability... yes checking ucontext.h presence... yes checking for ucontext.h... yes checking pthread.h usability... yes checking pthread.h presence... yes checking for pthread.h... yes checking sys/select.h usability... yes checking sys/select.h presence... yes checking for sys/select.h... yes checking poll.h usability... yes checking poll.h presence... yes checking for poll.h... yes checking sys/poll.h usability... yes checking sys/poll.h presence... yes checking for sys/poll.h... yes checking tcpd.h usability... no checking tcpd.h presence... no checking for tcpd.h... no checking sys/ioctl.h usability... yes checking sys/ioctl.h presence... yes checking for sys/ioctl.h... yes checking sys/filio.h usability... no checking sys/filio.h presence... no checking for sys/filio.h... no checking stropts.h usability... yes checking stropts.h presence... yes checking for stropts.h... yes checking grp.h usability... yes checking grp.h presence... yes checking for grp.h... yes checking for unistd.h... (cached) yes checking util.h usability... no checking util.h presence... no checking for util.h... no checking libutil.h usability... no checking libutil.h presence... no checking for libutil.h... no checking sys/resource.h usability... yes checking sys/resource.h presence... yes checking for sys/resource.h... yes checking pty.h usability... no checking pty.h presence... no checking for pty.h... no checking sys/socket.h usability... yes checking sys/socket.h presence... yes checking for sys/socket.h... yes checking for struct msghdr.msg_control... yes configure: **************************************** libraries checking for library containing gethostbyname... none required checking for library containing yp_get_default_domain... none required checking for socket in -lsocket... no checking for openpty in -lutil... no checking for dlopen in -ldl... yes checking for shl_load in -ldld... no checking for inflateEnd in -lz... yes configure: **************************************** thread model checking for pthread_create in -lc_r... no checking for pthread_create in -lpthread... yes configure: PTHREAD thread model detected configure: **************************************** library functions checking for snprintf... yes checking for vsnprintf... yes checking for openpty... no checking for _getpty... no checking for daemon... no checking for waitpid... yes checking for wait4... yes checking for setsid... yes checking for setgroups... yes checking for chroot... yes checking for sysconf... yes checking for getrlimit... yes checking for pthread_sigmask... yes checking for localtime_r... yes checking for getcontext... yes checking for __makecontext_v2... no checking for poll... yes checking for endhostent... yes checking for getnameinfo... yes checking for getaddrinfo... yes checking for broken poll() implementation... no configure: **************************************** SSL checking for SSL directory... /usr checking for obsolete RSAref library... no checking /usr/include/openssl/engine.h usability... yes checking /usr/include/openssl/engine.h presence... yes checking for /usr/include/openssl/engine.h... yes configure: **************************************** optional features checking whether to disable RSA support... no checking whether to enable DH support... no checking whether to enable IPv6 support... yes checking whether to disable TCP wrappers library support... autodetecting checking for hosts_access in -lwrap... no checking whether to enable FIPS mode support... autodetecting checking for FIPS_mode_set... no configure: **************************************** write the results configure: creating ./config.status config.status: creating Makefile config.status: creating src/Makefile config.status: creating src/stunnel3 config.status: creating doc/Makefile config.status: creating tools/Makefile config.status: creating tools/stunnel.conf-sample config.status: creating tools/stunnel.init config.status: executing depfiles commands configure: **************************************** success

2 1

problem with -fd option on Linux
by Sorkin, David 21 Nov '09

21 Nov '09

I'd like to report an interesting problem I found that occurs on Linux but not Solaris when using the -fd 0 option to read the stunnel configuration in from stdin. I am using stunnel to establish client tunnels on the fly for one time use by programs such as rsync. The client config file is generated automatically with some dynamic parameters. After the client tunnel is established a client program connects to the specified port on localhost. This works fine on Solaris but on Linux I found that the client program has to be invoked *twice* before it works. My work around is to write the config to a temp file and starting stunnel with the location of the file as its argument instead of writing to its standard input. I am using tcp wrappers to protect the stunnel servers and to limit the connects to the client to localhost. This isn't an issue for me anymore but it took a bit of troubleshooting to figure out. On Solaris I am running the same version of stunnel, openssl, etc... all compiled very similarly. One difference could be iconv but I don't know enough about it to say. Regards, David Sorkin Debug log from the first client invocation: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 10 15:37:02 test03 stunnel: LOG5[32303:182894071744]: stunnel 4.27 on x86_64-unknown-linux-gnu with OpenSSL 0.9.8k 25 Mar 2009 Nov 10 15:37:02 test03 stunnel: LOG5[32303:182894071744]: Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv4 Auth:LIBWRAP Nov 10 15:37:02 test03 stunnel: LOG6[32303:182894071744]: file ulimit = 1024 (can be changed with 'ulimit -n') Nov 10 15:37:02 test03 stunnel: LOG6[32303:182894071744]: poll() used - no FD_SETSIZE limit for file descriptors Nov 10 15:37:02 test03 stunnel: LOG5[32303:182894071744]: 500 clients allowed Nov 10 15:37:03 test03 stunnel: LOG3[32309:1073809760]: Unexpected socket close (read_blocking) Nov 10 15:37:03 test03 stunnel: LOG5[32309:1073809760]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket Nov 10 15:37:03 test03 stunnel: LOG5[32309:182894071744]: Received signal 15; terminating My client config is similar to the following: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ debug = local4.info foreground = no sslVersion = TLSv1 RNDfile = /dev/random RNDoverwrite = no pid = %s [stunnel] client = yes key = /path/to/private_key.pem cert = /path/to/public_key_cert.pem verify = 0 accept = 127.0.0.1:12345 # ephemeral port connect = remote_host:123 # well known port ciphers = AES256-SHA Server Config: ^^^^^^^^^^^^^^ debug = local4.info foreground = no pid = /var/run/stunnel.pid sslVersion = TLSv1 RNDfile = /dev/random RNDoverwrite = no [rsync] client = no key = /path/to/private_key.pem cert = /path/to/public_key_cert.pem CAfile = /path/to/authority_certs.pem verify = 3 accept = 123 exec = /usr/bin/rsync execargs = rsync --daemon --no-detach ciphers = AES256-SHA hosts.allow ^^^^^^^^^^^^ stunnel: 127.0.0.1 rsync: <ip of authorized server> > /usr/local/bin/stunnel -version stunnel 4.27 on x86_64-unknown-linux-gnu with OpenSSL 0.9.8k 25 Mar 2009 Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv4 Auth:LIBWRAP Global options debug = 5 pid = /var/run/stunnel.pid RNDbytes = 64 RNDfile = /dev/urandom RNDoverwrite = yes Service-level options cert = /usr/local/etc/stunnel.pem ciphers = AES:ALL:!aNULL:!eNULL:+RC4:@STRENGTH key = /usr/local/etc/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 > /usr/local/bin/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 -- -- -- -- IP_TOS -- -- -- 0 IP_TTL -- -- -- 64 TCP_NODELAY -- -- -- 0 > uname -a Linux test1 2.6.9-89.0.11.ELsmp #1 SMP Mon Aug 31 11:00:34 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux -- David Sorkin <david.sorkin(a)citi.com> CATE - Network Engineering (908) 563-0017

2 1

Examples are for V3?
by James Bowery 18 Nov '09

18 Nov '09

The examples at: http://www.stunnel.org/examples/ appear to be for version 3. This wasted a lot of my time.

2 1

Stunnel with a enterprise proxy server
by Vandooren, Pascal 16 Nov '09

16 Nov '09

Hello, I have a problem ... on my network i have more than one proxy server, and y use Stunnel for a remote RDP. if my computer is directly connected to internet there is no problem. If i connect my computer on my domain with my proxies servers i'm not able to connect me on RDP to my remote RDP server. Is it possible to indicate my proxy server to user ? Kind regards PascalV --------------------------------------------------------------------------- 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

Error installing Stunnel-4.28
by th＠ftlabs.com 13 Nov '09

13 Nov '09

I could not get Stunnel-4.27 to work as described in a previous post on Mon Nov 9 17:12:38 CET 2009 to which nobody responded. So I tried installing the latest version, Stunnel-4.28, and received the following error when running the 'make' command... options.c: In function ‘service_options’: options.c:1139: error: ‘SSL_OP_NO_TICKET’ undeclared (first use in this function) options.c:1139: error: (Each undeclared identifier is reported only once options.c:1139: error: for each function it appears in.) options.c: In function ‘parse_ssl_option’: options.c:1709: error: ‘SSL_OP_NO_TICKET’ undeclared (first use in this function) make[1]: *** [options.o] Error 1 make[1]: Leaving directory `/tmp/stunnel-4.28/src' make: *** [all-recursive] Error 1 The output for 'openssl version' is: OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008 Can anyone help me with either problems please?

2 1

Re: [stunnel-users] stunnel-users Digest, Vol 64, Issue 8
by Michael Wilson 12 Nov '09

12 Nov '09

Thanks Ludholf, Re Q2 - Solved. Re Q1 - Thanks, but I should have been clearer, I wanted an automated solution. My nightly Blat e-mails come from a command line .cmd file. I have recently added a javascript to check if stunnel is active and, if not, start it before my e-mails. Now I would like to create a similar script that, if stunnel is running, stops it after my e-mail. I may just have to use Windows Script Host's Terminate. Mike On Thu, Nov 12, 2009 at 6:00 AM, <stunnel-users-request(a)mirt.net> wrote: > Send stunnel-users mailing list submissions to > stunnel-users(a)mirt.net > > To subscribe or unsubscribe via the World Wide Web, visit > http://stunnel.mirt.net/mailman/listinfo/stunnel-users > or, via email, send a message with subject or body 'help' to > stunnel-users-request(a)mirt.net > > You can reach the person managing the list at > stunnel-users-owner(a)mirt.net > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of stunnel-users digest..." > > > Today's Topics: > > 1. Vista questions (Michael Wilson) > 2. Re: Vista questions (Ludolf Holzheid) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Wed, 11 Nov 2009 13:22:53 -0500 > From: Michael Wilson <michael.r.wilson(a)gmail.com> > Subject: [stunnel-users] Vista questions > To: stunnel-users(a)mirt.net > Message-ID: > <6d39888c0911111022r39c898c5je24d6808075bc0ba(a)mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > I am running 4.27 on Vista and can successfully start it and use Blat > to e-mail via my gmail account using stunnel. > > However, I have two questions: > > Q1: I would like to close down stunnel after sending my e-mails. How > can I do that on Vista? > > Q2: Why do I get the following when I enter "stunnel -help" at the command line > > A window with the heading "Stunnel 4.27 on Win32 (not configured)" that says: > Stunnel server is down due to an error. > You will need to exit and correct the problem > Click OK to see the error log window > > The error log is: > > Global options > compression = zlib|rle compression type > debug = [facility].level (e.g. daemon.info) > EGD = path to Entropy Gathering Daemon socket > engine = auto|engine_id > engineCtrl = cmd[:arg] > output = file to append log messages > RNDbytes = bytes to read from random seed files > RNDfile = path to file with random seed data > RNDoverwrite = yes|no overwrite seed datafiles with new random data > service = service name > socket = a|l|r:option=value[:value] > set an option on accept/local/remote socket > taskbar = yes|no enable the taskbar icon > > Service-level options > accept = [host:]port accept connections on specified host:port > CApath = CA certificate directory for 'verify' option > CAfile = CA certificate file for 'verify' option > cert = certificate chain > ciphers = list of permitted SSL ciphers > client = yes|no client mode (remote service uses SSL) > connect = [host:]port connect remote host:port > CRLpath = CRL directory > CRLfile = CRL file > delay = yes|no delay DNS lookup for 'connect' option > engineNum = number of engine to read the key from > failover = rr|prio chose failover strategy > ident = username for IDENT (RFC 1413) checking > key = certificate private key > local = IP address to be used as source for remote connections > ocsp = OCSP server URL > OCSPflag = OCSP server flags > options = SSL option > set an SSL option > protocol = protocol to negotiate before SSL initialization > currently supported: cifs, connect, nntp, pop3, smtp > protocolAuthentication = authentication type for protocol negotiations > protocolHost = host:port for protocol negotiations > protocolPassword = password for protocol negotiations > protocolUsername = username for protocol negotiations > session = session cache timeout (in seconds) > stack = thread stack size (in bytes) > sslVersion = all|SSLv2|SSLv3|TLSv1 SSL method > TIMEOUTbusy = seconds to wait for expected data > TIMEOUTclose = seconds to wait for close_notify (set to 0 for buggy MSIE) > TIMEOUTconnect = seconds to connect remote host > TIMEOUTidle = seconds to keep an idle connection > verify = level of peer certificate verification > level 1 - verify peer certificate if present > level 2 - require valid peer certificate always > level 3 - verify peer with locally installed certificate > > 2009.11.11 13:03:36 LOG3[5440:5128]: Server is down > > > ------------------------------ > > Message: 2 > Date: Wed, 11 Nov 2009 20:06:20 +0100 > From: Ludolf Holzheid <lholzheid(a)bihl-wiedemann.de> > Subject: Re: [stunnel-users] Vista questions > To: stunnel-users(a)mirt.net > Message-ID: <20091111190620.GD29581(a)svr5.bihl-wiedemann.de> > Content-Type: text/plain; charset=iso-8859-1 > > On Wed, 2009-11-11 13:22:53 -0500, Michael Wilson wrote: >> I am running 4.27 on Vista and can successfully start it and use Blat >> to e-mail via my gmail account using stunnel. >> >> However, I have two questions: >> >> Q1: I would like to close down stunnel after sending my e-mails. How >> can I do that on Vista? > > Michael, > > did you try to right-click on the stunnel icon in the systray and select "Exit"? > >> Q2: Why do I get the following when I enter "stunnel -help" at the command line > > This is stunnel's way to output the help message (or other messages) > on windows. > > If stunnel used stdio for messages, you would have seen the help > message in the command prompt window you entered "stunnel -help" > in. However, there isn't necessarily a command prompt window stunnel > is attached to. Imagine to invoke "stunnel -help" via [start]->[run]. > > Ludolf > > -- > > --------------------------------------------------------------- > Ludolf Holzheid Tel: +49 621 339960 > Bihl+Wiedemann GmbH Fax: +49 621 3392239 > Flo?w?rthstra?e 41 e-mail: lholzheid(a)bihl-wiedemann.de > D-68199 Mannheim, Germany > --------------------------------------------------------------- > > > > ------------------------------ > > _______________________________________________ > stunnel-users mailing list > stunnel-users(a)mirt.net > http://stunnel.mirt.net/mailman/listinfo/stunnel-users > > > End of stunnel-users Digest, Vol 64, Issue 8 > ******************************************** >

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Vista questions
by Michael Wilson 11 Nov '09

11 Nov '09

I am running 4.27 on Vista and can successfully start it and use Blat to e-mail via my gmail account using stunnel. However, I have two questions: Q1: I would like to close down stunnel after sending my e-mails. How can I do that on Vista? Q2: Why do I get the following when I enter "stunnel -help" at the command line A window with the heading "Stunnel 4.27 on Win32 (not configured)" that says: Stunnel server is down due to an error. You will need to exit and correct the problem Click OK to see the error log window The error log is: Global options compression = zlib|rle compression type debug = [facility].level (e.g. daemon.info) EGD = path to Entropy Gathering Daemon socket engine = auto|engine_id engineCtrl = cmd[:arg] output = file to append log messages RNDbytes = bytes to read from random seed files RNDfile = path to file with random seed data RNDoverwrite = yes|no overwrite seed datafiles with new random data service = service name socket = a|l|r:option=value[:value] set an option on accept/local/remote socket taskbar = yes|no enable the taskbar icon Service-level options accept = [host:]port accept connections on specified host:port CApath = CA certificate directory for 'verify' option CAfile = CA certificate file for 'verify' option cert = certificate chain ciphers = list of permitted SSL ciphers client = yes|no client mode (remote service uses SSL) connect = [host:]port connect remote host:port CRLpath = CRL directory CRLfile = CRL file delay = yes|no delay DNS lookup for 'connect' option engineNum = number of engine to read the key from failover = rr|prio chose failover strategy ident = username for IDENT (RFC 1413) checking key = certificate private key local = IP address to be used as source for remote connections ocsp = OCSP server URL OCSPflag = OCSP server flags options = SSL option set an SSL option protocol = protocol to negotiate before SSL initialization currently supported: cifs, connect, nntp, pop3, smtp protocolAuthentication = authentication type for protocol negotiations protocolHost = host:port for protocol negotiations protocolPassword = password for protocol negotiations protocolUsername = username for protocol negotiations session = session cache timeout (in seconds) stack = thread stack size (in bytes) sslVersion = all|SSLv2|SSLv3|TLSv1 SSL method TIMEOUTbusy = seconds to wait for expected data TIMEOUTclose = seconds to wait for close_notify (set to 0 for buggy MSIE) TIMEOUTconnect = seconds to connect remote host TIMEOUTidle = seconds to keep an idle connection verify = level of peer certificate verification level 1 - verify peer certificate if present level 2 - require valid peer certificate always level 3 - verify peer with locally installed certificate 2009.11.11 13:03:36 LOG3[5440:5128]: Server is down

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FIPS_mode_set error
by th＠ftlabs.com 09 Nov '09

09 Nov '09

I just installed Stunnel-4.27 on a Linux box and cannot get it to start with a test config that works on another box running same version of Stunnel. I get the following output... [root@dvl stunnel]# stunnel stunnel.conf-test 2009.11.07 11:07:43 LOG7[31671:46968864029472]: Snagged 64 random bytes from stunnel-test.rnd 2009.11.07 11:07:43 LOG7[31671:46968864029472]: Wrote 1024 new random bytes to stunnel-test.rnd 2009.11.07 11:07:43 LOG7[31671:46968864029472]: RAND_status claims sufficient entropy for the PRNG 2009.11.07 11:07:43 LOG7[31671:46968864029472]: PRNG seeded successfully 2009.11.07 11:07:43 LOG7[31671:46968864029472]: SSL context initialized for service Test 2009.11.07 11:07:43 LOG3[31671:46968864029472]: FIPS_mode_set: 2D06C06E: error:2D06C06E:FIPS routines:FIPS_mode_set:fingerprint does not match Does anybody have a clue what may be causing this and how to fix it? Please pardon my ignorance regarding OpenSSL.

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