- stunnel-users - stunnel.org

Re: [stunnel-users] Clearer and Detailed version of the mail Stunnelfor HTTP enc
by Ian 20 Jul '06

20 Jul '06

On 20 Jul 2006 at 14:50, LoopBack Inc wrote: > Hello Ian, > > > Yes thats excatly what I want to do. > > In fact, if possible, this I haven't described yes, I would like to encript > every program I want through PC2, used as a proxy, like you said. > But if it would work with the http it wouldn't be bad. > > Thank you for your reply. Hi, Ok, this has clarified things for me. Another question, do you have a copy of the proxy program (SocksCap ?) running on PC2? If not then this is the problem. I believe that stunnel does not itself act as a proxy. It simply acts as a tunnel. >From your description of your config I suspect that you should have a second copy of SocksCap listenening on PC2 which will forward data onto the internet. A quick example: PC1: SocksCap listening on port 8080 ( for example) forwards to 127.0.0.1:500 stunnel listening on port 500, forwarded any data to PC2 port 500 PC2: stunnel listening on port 500 forwards data to 127.0.0.1:8080 SocksCap listening on port 8080 forwards data out to the internet. This will encrypt data between PC1 & PC2 but after that it will be back in plain. In order to test this I would break it down into its individual components and test each stage. I recommend downloading netcat (http://netcat.sourceforge.net/ or google for it) and learn how to use it. Sorry I can't help you with this bit, its better if you learn it yourself - and once you have you will wonder how you ever managed without it ;) Regards Ian --

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Stunnel for HTTP encription
by LoopBack Inc 18 Jul '06

18 Jul '06

Hello! I'm tring to encript HTTP. I use two PCs, PC1 and PC2. PC1 is a client PC2 is a server. IP of PC1:192.168.0.1 IP of PC2:192.168.0.2 I use SocksCap to forward the iexplore cnnections to another port, a port on which stunnel listens. On PC1, the client, stunnel is listening on port 500. So when I start iexplore.exe with SocksCap every connection goes to 127.0.0.1:500. PC1 connects to PC2, with connect = 192.168.0.2:123 On PC2, the server, stunnel listens on port 500. then is connects to the internet with connect = 127.0.0.1:80. Here is the problem, stunnel doesn't connect to the internet over 127.0.0.1:80. I don't know why, but it doesnt. LOGs from the SERVER: 2006.07.18 16:56:07 LOG7[2332:2720]: inet accepted FD=208 from 192.168.0.1:2156 2006.07.18 16:56:07 LOG7[2332:2720]: Creating a new thread 2006.07.18 16:56:07 LOG7[2332:2720]: New thread created 2006.07.18 16:56:07 LOG7[2332:1880]: inet started 2006.07.18 16:56:07 LOG7[2332:1880]: FD 208 in non-blocking mode 2006.07.18 16:56:07 LOG5[2332:1880]: inet connected from 192.168.0.1:2156 2006.07.18 16:56:07 LOG7[2332:1880]: SSL state (accept): before/accept initialization 2006.07.18 16:56:07 LOG7[2332:1880]: SSL state (accept): SSLv3 read client hello A 2006.07.18 16:56:07 LOG7[2332:1880]: SSL state (accept): SSLv3 write server hello A 2006.07.18 16:56:07 LOG7[2332:1880]: SSL state (accept): SSLv3 write change cipher spec A 2006.07.18 16:56:07 LOG7[2332:1880]: SSL state (accept): SSLv3 write finished A 2006.07.18 16:56:07 LOG7[2332:1880]: SSL state (accept): SSLv3 flush data 2006.07.18 16:56:07 LOG7[2332:1880]: SSL state (accept): SSLv3 read finished A 2006.07.18 16:56:07 LOG7[2332:1880]: 1 items in the session cache 2006.07.18 16:56:07 LOG7[2332:1880]: 0 client connects (SSL_connect()) 2006.07.18 16:56:07 LOG7[2332:1880]: 0 client connects that finished 2006.07.18 16:56:07 LOG7[2332:1880]: 0 client renegotiations requested 2006.07.18 16:56:07 LOG7[2332:1880]: 7 server connects (SSL_accept()) 2006.07.18 16:56:07 LOG7[2332:1880]: 7 server connects that finished 2006.07.18 16:56:07 LOG7[2332:1880]: 0 server renegotiations requested 2006.07.18 16:56:07 LOG7[2332:1880]: 5 session cache hits 2006.07.18 16:56:07 LOG7[2332:1880]: 1 session cache misses 2006.07.18 16:56:07 LOG7[2332:1880]: 1 session cache timeouts 2006.07.18 16:56:07 LOG6[2332:1880]: SSL accepted: previous session reused 2006.07.18 16:56:07 LOG7[2332:1880]: FD 244 in non-blocking mode 2006.07.18 16:56:07 LOG7[2332:1880]: inet connecting 127.0.0.1:80 2006.07.18 16:56:07 LOG7[2332:1880]: connect_wait: waiting 10 seconds 2006.07.18 16:56:07 LOG7[2332:1880]: connect_wait: connected 2006.07.18 16:56:07 LOG7[2332:1880]: Remote FD=244 initialized After nothing happend for 52 seconds I aborted in the iexplore.exe to open the page. 2006.07.18 16:56:59 LOG7[2332:1880]: SSL alert (read): warning: close notify 2006.07.18 16:56:59 LOG7[2332:1880]: SSL closed on SSL_read 2006.07.18 16:56:59 LOG7[2332:1880]: Socket write shutdown 2006.07.18 16:56:59 LOG7[2332:1880]: SSL write shutdown 2006.07.18 16:56:59 LOG7[2332:1880]: SSL alert (write): warning: close notify 2006.07.18 16:56:59 LOG6[2332:1880]: SSL_shutdown successfully sent close_notify 2006.07.18 16:56:59 LOG5[2332:1880]: Connection closed: 0 bytes sent to SSL, 3 bytes sent to socket 2006.07.18 16:56:59 LOG7[2332:1880]: inet finished (0 left) LOGs from the CLIENT: 2006.07.18 17:10:11 LOG7[1756:4756]: inet accepted FD=444 from 127.0.0.1:2284 2006.07.18 17:10:11 LOG7[1756:4756]: Creating a new thread 2006.07.18 17:10:11 LOG7[1756:4756]: New thread created 2006.07.18 17:10:11 LOG7[1756:2840]: inet started 2006.07.18 17:10:11 LOG7[1756:2840]: FD 444 in non-blocking mode 2006.07.18 17:10:11 LOG7[1756:2840]: TCP_NODELAY option set on local socket 2006.07.18 17:10:11 LOG5[1756:2840]: inet connected from 127.0.0.1:2284 2006.07.18 17:10:11 LOG7[1756:2840]: FD 348 in non-blocking mode 2006.07.18 17:10:11 LOG7[1756:2840]: inet connecting 192.168.0.2:123 2006.07.18 17:10:11 LOG7[1756:2840]: connect_wait: waiting 10 seconds 2006.07.18 17:10:11 LOG7[1756:2840]: connect_wait: connected 2006.07.18 17:10:11 LOG7[1756:2840]: Remote FD=348 initialized 2006.07.18 17:10:11 LOG7[1756:2840]: TCP_NODELAY option set on remote socket 2006.07.18 17:10:11 LOG7[1756:2840]: SSL state (connect): before/connect initialization 2006.07.18 17:10:11 LOG7[1756:2840]: SSL state (connect): SSLv3 write client hello A 2006.07.18 17:10:11 LOG7[1756:2840]: SSL state (connect): SSLv3 read server hello A 2006.07.18 17:10:11 LOG7[1756:2840]: SSL state (connect): SSLv3 read finished A 2006.07.18 17:10:11 LOG7[1756:2840]: SSL state (connect): SSLv3 write change cipher spec A 2006.07.18 17:10:11 LOG7[1756:2840]: SSL state (connect): SSLv3 write finished A 2006.07.18 17:10:11 LOG7[1756:2840]: SSL state (connect): SSLv3 flush data 2006.07.18 17:10:11 LOG7[1756:2840]: 17 items in the session cache 2006.07.18 17:10:11 LOG7[1756:2840]: 65 client connects (SSL_connect()) 2006.07.18 17:10:11 LOG7[1756:2840]: 65 client connects that finished 2006.07.18 17:10:11 LOG7[1756:2840]: 0 client renegotiations requested 2006.07.18 17:10:11 LOG7[1756:2840]: 0 server connects (SSL_accept()) 2006.07.18 17:10:11 LOG7[1756:2840]: 0 server connects that finished 2006.07.18 17:10:11 LOG7[1756:2840]: 0 server renegotiations requested 2006.07.18 17:10:11 LOG7[1756:2840]: 48 session cache hits 2006.07.18 17:10:11 LOG7[1756:2840]: 0 session cache misses 2006.07.18 17:10:11 LOG7[1756:2840]: 0 session cache timeouts 2006.07.18 17:10:11 LOG6[1756:2840]: SSL connected: previous session reused Nothing happendend, I aborted iexplore.exe 2006.07.18 17:10:25 LOG7[1756:2840]: Socket closed on read 2006.07.18 17:10:25 LOG7[1756:2840]: SSL write shutdown 2006.07.18 17:10:25 LOG7[1756:2840]: SSL alert (write): warning: close notify 2006.07.18 17:10:25 LOG7[1756:2840]: SSL_shutdown retrying 2006.07.18 17:10:25 LOG7[1756:2840]: SSL doesn't need to read or write 2006.07.18 17:10:25 LOG7[1756:2840]: SSL alert (read): warning: close notify 2006.07.18 17:10:26 LOG7[1756:2840]: SSL closed on SSL_read 2006.07.18 17:10:26 LOG7[1756:2840]: Socket write shutdown 2006.07.18 17:10:26 LOG5[1756:2840]: Connection closed: 3 bytes sent to SSL, 0 bytes sent to socket 2006.07.18 17:10:26 LOG7[1756:2840]: inet finished (0 left) So the problem is that stunnel doesn't connect to the internet on PC2. I think i have to use something different than connect = 127.0.0.1:80 on PC2, but not sure. I'm using Windwos. Thanks for helping. _________________________________________________________________ On the road to retirement? Check out MSN Life Events for advice on how to get there! http://lifeevents.msn.com/category.aspx?cid=Retirement

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exclusively TLS
by Richard Kotal 17 Jul '06

17 Jul '06

Hey, I had the same problem. I solved this problem. You must download my patch: http://www.aolserver.cz/, or http://www.aolserver.cz/download/stunnel-4.15_patch.tgz Richard Kotal info(a)waplikace.cz www.aolserver.cz prepis.waplikace.cz www.nvp.cz /> I need to talk to a server that is requiring pure TLS. It seems that > STUNNEL always starts with SSL. How do I get STUNNEL to start the client //> //side conversation with TLS? //> / /> // //> //John Moehrke //> //Enterprise Security Architect //> //GE Healthcare //> //T 262 293 1667 //> //W126 N7449 Flint Road, Suite 200, Menomonee Falls, WI 53051 //> / <http://stunnel.mirt.net/mailman/listinfo/stunnel-users>/John.Moehrke at med.ge.com <http://stunnel.mirt.net/mailman/listinfo/stunnel-users> <mailto:John.Moehrke at med.ge.com <http://stunnel.mirt.net/mailman/listinfo/stunnel-users>> //> //www.gehealthcare.com <http://www.gehealthcare.com/> //> //What I may see or hear in the course of the treatment or even outside of //> //the treatment in regard to the life of men, which on no account one must //> //spread abroad, I will keep to myself, holding such things shameful to be //> //spoken about. (One Portion of the Hippocratic Oath - Hippocrates, circa //> //400 B.C.) /

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configure/compile issue on AIX
by Boxall, John 13 Jul '06

13 Jul '06

I'm trying to get stunnel working on AIX 5.3. I'm running the configure with "--prefix=/opt/freeware", however, when I start stunnel it is looking for the stunnel.conf file in /usr/local/etc/stunnel. Shouldn't it be looking for it in "/opt/freeware/etc/stunnel", which is where the "make install" put it? Regards, John Boxall

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newbie: stunnel works but do not encrypt
by Gallas Róbert 13 Jul '06

13 Jul '06

Hello, I setup stunnel( v4.15 win32 port ) on both side, client and server. Connection is working but does not encrypt. Setup is done for ORACLE and WEB. Oracle`s listener is setup with "USE_SHARED_SOCKET = TRUE" variable and works fine with OpenSSH with PUTTY I use default configuration just with the needed basic customization: # ##Client cert = stunnel.pem socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 debug = 7 output = stunnel.log client = yes [web] accept = 3128 connect = 10.160.1.220:3128 [oracle] accept = 1521 connect = 10.160.1.220:4892 ### Server: cert = stunnel.pem socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 [web] accept = 3128 connect = 10.160.0.4:3128 [oracle] accept = 4892 connect = 10.160.1.220:1521 Any good sugestions? Thanks for your answers Regards Robert

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(no subject)
by Gallas Róbert 12 Jul '06

12 Jul '06

Hello, I setup stunnel( v4.15 win32 port ) on both side, client and server. Connection is working but does not encrypt. Setup is done for ORACLE and WEB. Oracle`s listener is setup with "USE_SHARED_SOCKET = TRUE" variable and works fine with OpenSSH with PUTTY I use default configuration just with the needed basic customization: # ##Client cert = stunnel.pem socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 debug = 7 output = stunnel.log client = yes [web] accept = 3128 connect = 10.160.1.220:3128 [oracle] accept = 1521 connect = 10.160.1.220:4892 ### Server: cert = stunnel.pem socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 [web] accept = 3128 connect = 10.160.0.4:3128 [oracle] accept = 4892 connect = 10.160.1.220:1521 Any good sugestions? Thanks for your answers Regards Robert

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Follow-up: Bad certificate? (was Expired certificate?)
by Boxall, John 11 Jul '06

11 Jul '06

Mike, et al, The problem I was having with stunnel on a Windows box connecting with stunnel on a Unix server (Solaris in this case) turned out to be a mis-configuration of the syslog-ng server on Unix. I took a sample syslog-ng.conf from somewhere else and didn't know the impact of "max-connections(1)". Though I assume it is intended as a limit on the number of connections to the localhost (127.0.0.1:514), it effectively limits the number of in-bound connections from remote logging clients to 1 (in this case using port 5140). Removing this parameter allowed all of my test clients to simultaneously log to the server. Mike, the OpenSSL-generated cert works fine. Thanks. Regards, John Boxall

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libssl.so.0.9.8 error running stunnel
by Michael Tyrrell 10 Jul '06

10 Jul '06

I have a Solaris 10 SPARC server running stunnel 4.15 with openssl version "OpenSSL 0.9.8b 04 May 2006". When I try to run /usr/local/sbin/stunnel I get the following error. ld.so.1: stunnel: fatal: libssl.so.0.9.8: open failed: No such file or directory Killed In the stunnel.conf file I have debug set to 7 but it will not write to the stunnel.log file. I also get the same error if I run stunnel -version. Thanks for any help you could give.

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stunnel and gmail (Windows)
by Al Oomens 08 Jul '06

08 Jul '06

I've gotten an older version of stunnel to work the way I want by starting it from a command prompt like: stunnel -c -d 110 -r pop.gmail.com:995 How do I specify this in the config file for the newest version of stunnel, in order to use it as a service on Windows? -- Al Oomens Wheaton, IL. aloomens(a)gmail.com

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Wildcard outbound IP matching...
by Jeff Roberts 07 Jul '06

07 Jul '06

Is there a way to configure Stunnel to capture outbound packets for *any* IP, but for a specific port? My SMTP server can be configured to connect directly to the final SMTP server. I can configure the outbound port to some other port other than 25, so I'd like to say something like - [smtpclient] protocol=smtp accept = *:2210 connect = *:25 Suggestions? ->Jeff RAD Game Tools

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Bad certificate? (was Expired certificate?)
by Boxall, John 30 Jun '06

30 Jun '06

Mike, I've created a self-signed certificate on my Windows test box using OpenSSL 0.9.7j (the version from Shining Light). I created the key file with the following command: "openssl genrsa 1024 > \host.key Here is the command I used to create the self-signed cert: "openssl req -new -x509 -nodes -sha1 -days 9999 -key \host.key > \host.cert" I then copied the key/cert to the appropriate file in the stunnel directory. I then copied the cert to the Solaris server and included it with all other client certs. Here is the Windows configuration file: ; ;CLIENT-ONLY stunnel configuration file ; client = yes cert = C:\Program Files\stunnel\stunnel.pem-client-certificate CAfile = C:\Program Files\stunnel\stunnel.pem-server-certificate ;chroot = /var/run/stunnel ;pid = /usr/local/var/run/stunnel/stunnel.pid ;setuid = stunnel ;setgid = stunnel verify = 3 ;foreground = yes debug = 7 output = C:\Program Files\stunnel\stunnel.log [5140] accept = 127.0.0.1:514 connect = 172.17.99.143:5140 Here is the Solaris configuration file: ; ;SERVER-ONLY stunnel configuration file ; cert = /usr/local/etc/stunnel/stunnel.pem-server-certificate CAfile = /usr/local/etc/stunnel/stunnel.pem-all-client-certificates ;chroot = /var/run/stunnel ;pid = /var/run/stunnel/run/stunnel.pid ;setuid = stunnel ;setgid = stunnel verify = 3 ;foreground = yes debug = 7 output=/stunnel.log [5140] accept = 172.17.99.143:5140 connect = 127.0.0.1:514 The following happens on the Windows box when I first launch stunnel: 2006.06.30 09:51:31 LOG5[516:360]: stunnel 4.15 on x86-pc-mingw32-gnu with OpenSSL 0.9.7i 14 Oct 2005 2006.06.30 09:51:31 LOG5[516:360]: Threading:WIN32 SSL:ENGINE Sockets:SELECT,IPv6 2006.06.30 09:51:31 LOG5[516:392]: No limit detected for the number of clients 2006.06.30 09:51:31 LOG7[516:392]: FD 1904 in non-blocking mode 2006.06.30 09:51:31 LOG7[516:392]: SO_REUSEADDR option set on accept socket 2006.06.30 09:51:31 LOG7[516:392]: 5140 bound to 127.0.0.1:514 Nothing happens on the Solaris box. When I start EventReporter, the following happens, in a continuous loop (until I stop EventReporter): 2006.06.30 10:16:26 LOG7[296:700]: 5140 accepted FD=156 from 127.0.0.1:1154 2006.06.30 10:16:26 LOG7[296:700]: Creating a new thread 2006.06.30 10:16:26 LOG7[296:700]: New thread created 2006.06.30 10:16:27 LOG7[296:1204]: 5140 started 2006.06.30 10:16:27 LOG7[296:1204]: FD 156 in non-blocking mode 2006.06.30 10:16:27 LOG5[296:1204]: 5140 connected from 127.0.0.1:1154 2006.06.30 10:16:27 LOG7[296:1204]: FD 188 in non-blocking mode 2006.06.30 10:16:27 LOG7[296:1204]: 5140 connecting 172.17.99.143:5140 2006.06.30 10:16:27 LOG7[296:1204]: connect_wait: waiting 10 seconds 2006.06.30 10:16:27 LOG7[296:1204]: connect_wait: connected 2006.06.30 10:16:27 LOG7[296:1204]: Remote FD=188 initialized 2006.06.30 10:16:27 LOG7[296:1204]: SSL state (connect): before/connect initialization 2006.06.30 10:16:27 LOG7[296:1204]: SSL state (connect): SSLv3 write client hello A 2006.06.30 10:16:27 LOG7[296:1204]: SSL state (connect): SSLv3 read server hello A 2006.06.30 10:16:27 LOG5[296:1204]: VERIFY OK: depth=0, /C=CA/ST=ONTARIO/L=TORONTO/O=BANK OF MONTREAL/OU=LMG-DTS/CN=jdb2u10 2006.06.30 10:16:27 LOG7[296:1204]: SSL state (connect): SSLv3 read server certificate A 2006.06.30 10:16:27 LOG7[296:1204]: SSL state (connect): SSLv3 read server certificate request A 2006.06.30 10:16:27 LOG7[296:1204]: SSL state (connect): SSLv3 read server done A 2006.06.30 10:16:27 LOG7[296:1204]: SSL state (connect): SSLv3 write client certificate A 2006.06.30 10:16:27 LOG7[296:1204]: SSL state (connect): SSLv3 write client key exchange A 2006.06.30 10:16:27 LOG7[296:1204]: SSL state (connect): SSLv3 write certificate verify A 2006.06.30 10:16:27 LOG7[296:1204]: SSL state (connect): SSLv3 write change cipher spec A 2006.06.30 10:16:27 LOG7[296:1204]: SSL state (connect): SSLv3 write finished A 2006.06.30 10:16:27 LOG7[296:1204]: SSL state (connect): SSLv3 flush data 2006.06.30 10:16:27 LOG3[296:1204]: SSL_connect: Peer suddenly disconnected 2006.06.30 10:16:27 LOG5[296:1204]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2006.06.30 10:16:27 LOG7[296:1204]: 5140 finished (0 left) On the Solaris box, here is the matching entry, also in a continuous loop: 2006.06.30 10:16:47 LOG7[1214:1]: 5140 accepted FD=2 from 172.17.99.150:1155 2006.06.30 10:16:47 LOG7[1214:800]: 5140 started 2006.06.30 10:16:47 LOG7[1214:800]: FD 2 in non-blocking mode 2006.06.30 10:16:47 LOG5[1214:800]: 5140 connected from 172.17.99.150:1155 2006.06.30 10:16:47 LOG7[1214:800]: SSL state (accept): before/accept initialization 2006.06.30 10:16:47 LOG7[1214:800]: SSL state (accept): SSLv3 read client hello A 2006.06.30 10:16:47 LOG7[1214:800]: SSL state (accept): SSLv3 write server hello A 2006.06.30 10:16:47 LOG7[1214:800]: SSL state (accept): SSLv3 write certificate A 2006.06.30 10:16:47 LOG7[1214:800]: SSL state (accept): SSLv3 write certificate request A 2006.06.30 10:16:47 LOG7[1214:800]: SSL state (accept): SSLv3 flush data 2006.06.30 10:16:48 LOG4[1214:800]: VERIFY ERROR: depth=0, error=self signed certificate: /C=CA/ST=ONTARIO/L=TORONTO/O=BMO/OU=LMG-DTS/CN=jdb1winxp 2006.06.30 10:16:48 LOG7[1214:800]: SSL alert (write): fatal: bad certificate 2006.06.30 10:16:48 LOG3[1214:800]: SSL_accept: 140890B2: error:140890B2:SSL routines:SSL3_GET_CLIENT_CERTIFICATE:no certificate returned 2006.06.30 10:16:48 LOG5[1214:800]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2006.06.30 10:16:48 LOG7[1214:800]: 5140 finished (1 left) It appears the server cert is ok, but "something" is wrong with the client (Windows box) cert. Any chance you could post the command used in the "make install" to kick off the creation of the self-signed cert on Unix? I grep'd for it, but couldn't find it. Regards, John Boxall

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Stunnel 4.15 cannot handle PKCS8 format private keys
by David Gillingham 29 Jun '06

29 Jun '06

In modifying stunnel to work with the OpenSSL FIPS-certified module, I found out that private keys cannot be in the default OpenSSL format; they must be in PKCS8 format (due to the MD5 algorithm being disabled in FIPS mode). Talking to Dr. Henson of the OpenSSL group I was able to convert my private keys from the default format to PKCS8, but I found that stunnel was not able to handle these keys. I got the following error output (note that server.pem contains a PKCS8 private key and a PKCS7 public cert): 2006.06.08 17:49:38 LOG7[1120:616]: Certificate: server.pem 2006.06.08 17:49:38 LOG7[1120:616]: Key file: server.pem 2006.06.08 17:49:42 LOG3[1120:616]: error stack: 140B3009 : error:140B3009:SSL routines:SSL_CTX_use_RSAPrivateKey_file:PEM lib 2006.06.08 17:49:42 LOG3[1120:616]: error stack: 906700D : error:0906700D:PEM routines:PEM_ASN1_read_bio:ASN1 lib 2006.06.08 17:49:42 LOG3[1120:616]: error stack: 2306A075 : error:2306A075:PKCS12 routines:PKCS12_DECRYPT_D2I:pkcs12 pbe crypt error 2006.06.08 17:49:42 LOG3[1120:616]: error stack: 23077073 : error:23077073:PKCS12 routines:PKCS12_pbe_crypt:pkcs12 algor cipherinit error 2006.06.08 17:49:42 LOG3[1120:616]: SSL_CTX_use_RSAPrivateKey_file: 6074079: error:06074079:digital envelope routines:EVP_PBE_CipherInit:unknown pbe algorithm 2006.06.08 17:49:42 LOG3[1120:616]: Server is down Continuing with Dr. Henson, he informed me that this ssl error output meant that "the PBE table has not been initialized in the application". I corrected this by adding a call to OpenSSL_add_all_algorithms() into ssl_init() in ssl.c. This fixed my error with the PEM files. I am posting this so that this bug may be fixed for the next stunnel release. Additionally, I'd like verification that my fix makes sense given the structure of the stunnel code. From doing some searches in the stunnel source, I could not find any existing code that initialized the PBE table so adding the call to ssl_init() made sense _to me_. Michal: do you agree?

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Expired certificate?
by Boxall, John 29 Jun '06

29 Jun '06

Michal, et al, When attempting to connect from a Windows box to a Solaris box (as the server), the Solaris stunnel log (debug = 7) shows that the certificate on the Windows box (included with the download) has expired. I can connect from a Solaris 9 client box with no problems. The Solaris box is running as an NTP client to an internal NTP server. The Windows box isn't logged into a domain, but the time is within 5 minutes of the Solaris box. Solaris server: Solaris 9 (2004/09, no patches) OpenSSL 0.9.8a Stunnel 4.15 Application: Syslog-ng 1.6.11 (working fine on a client Solaris 9 box) Windows client: Windows XP Stunnel 4.15 Application: EventReporter 8.0.268/8.0.219 stunnel.conf: (borrowed and modified from a Solaris client box) ; ;CLIENT-ONLY stunnel configuration file ; client = yes cert = C:\Program Files\stunnel\stunnel.pem-client-certificate CAfile = C:\Program Files\stunnel\stunnel.pem-server-certificate ;chroot = /var/run/stunnel ;pid = /usr/local/var/run/stunnel/stunnel.pid ;setuid = stunnel ;setgid = stunnel verify = 3 ;foreground = yes debug = 7 output = C:\Program Files\stunnel\stunnel.log [5140] accept = 127.0.0.1:514 connect = 192.168.0.143:5140 If the certificate has truly expired, could you post a new one? If not, any suggestions? Regards, John Boxall

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Re: [stunnel-users] patch to build stunnel 4.15 with VS2005
by David Gillingham 29 Jun '06

29 Jun '06

Surely. Here are the contents of the patch file for vs.mak. >cat 4.15-MSVC2005.patch diff -cr stunnel-4.15-orig/src/vc.mak stunnel-4.15/src/vc.mak *** stunnel-4.15-orig/src/vc.mak Sat Jan 21 10:17:32 2006 --- stunnel-4.15/src/vc.mak Thu Jun 29 17:31:43 2006 *************** *** 1,2 **** ! # makefile for VC is not ready... --- 1,42 ---- ! # Simple Makefile.w32 for stunnel.exe by Michal Trojnara 1998-2006 ! # ! # Modified by David Gillingham (dgillingham(a)gmail.com) for Visual ! # Studio + # Modify this to point to your actual openssl compile directory + # (You did already compile openssl, didn't you???) + SSLDIR=..\openssl-0.9.7j + + OBJS=stunnel.obj ssl.obj ctx.obj file.obj client.obj protocol.obj \ + sthreads.obj log.obj options.obj network.obj resolver.obj \ + gui.obj + + CC=cl + CFLAGS=-MD -W3 -Ox -O2 -Ob2 -Gs0 -GF -Gy -GL -nologo \ + -I"$(SSLDIR)\inc32" $(DEFINES) + DEFINES=-DUSE_WIN32 -D_CRT_SECURE_NO_DEPRECATE \ + -D_CRT_NONSTDC_NO_DEPRECATE -DHAVE_GETADDRINFO \ + -DHAVE_GETNAMEINFO -D_MBCS + + LINK=link + LDFLAGS=-INCREMENTAL:NO -NOLOGO -SUBSYSTEM:WINDOWS -OPT:REF \ + -OPT:ICF -LTCG -MACHINE:X86 -ERRORREPORT:PROMPT + LIBS=-LIBPATH:"$(SSLDIR)\out32dll" wsock32.lib ssleay32.lib \ + libeay32.lib user32.lib gdi32.lib shell32.lib comdlg32.lib \ + advapi32.lib + + all: stunnel.exe + + clean: + del $(OBJS) resources.res + del *.manifest + del stunnel.exe + + stunnel.exe: $(OBJS) resources.res + $(LINK) $(LDFLAGS) $(LIBS) -OUT:$@ $** + IF EXIST [email protected] mt -nologo -manifest [email protected] -outputresource:$@;1 + + resources.res: resources.rc resources.h stunnel.ico + rc -fo $@ resources.rc + + $(OBJS): *.h vc.mak On 6/29/06, Michal Trojnara <Michal.Trojnara(a)mobi-com.net> wrote: > > That's possible. Could you prepare a patch with a minimal set of > changes (not including anything needed to build those Unix-specific files?).

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patch to build stunnel 4.15 with VS2005
by David Gillingham 29 Jun '06

29 Jun '06

All-- I have created a patch that will allow stunnel 4.15 to be built with Visual Studio 2005's command line environment. I have only tested it with VS2k5, but it should work for all Visual Studio .NET versions (that is, VS 7.0 or later). After you apply this patch to the source tree, you will need to run the makefile from a Visual Studio Command prompt (Start->Programs->Visual Studio->Visual Studio Tools->Visual Studio Command Prompt). From there, change the working directory to the stunnel\src folder and execute the command "nmake -f vs.mak all". After the build process has completed, you will have a working stunnel.exe. This patch will modify vc.mak to a working makefile for nmake (mimicing the basic structure of mingw.mak), common.h to include a couple missing headers for the I/O functions in pty.c, and env.c to include the winsock headers under the Win32 environment (replicating how it was done in common.h). This patch that is a result of internal testing/development I've done here at work and am releasing it to this list (and the stunnel developers) so that these changes could possibly be included in future stunnel releases. To the stunnel devs: if there's any additional work that can be done to get this integrated by the next release, just mention it. The other day, I tried sending the patch to the list as an attachment, but my message never showed up on either the mirt.net or google groups mirrors. I can only assume it was rejected because of the attachment. What follows is the full text of my patch file. > cat 4.15-MSVC2005.patch diff -cr stunnel-4.15-orig/src/common.h stunnel-4.15/src/common.h *** stunnel-4.15-orig/src/common.h Fri Mar 10 08:54:56 2006 --- stunnel-4.15/src/common.h Fri Jun 23 21:41:00 2006 *************** *** 153,158 **** --- 153,164 ---- #endif #include <windows.h> + /* include Visual Studio headers needed for I/O manipulation */ + #ifdef _MSC_VER + #include <io.h> + #include <fcntl.h> + #endif + #define ECONNRESET WSAECONNRESET #define ENOTSOCK WSAENOTSOCK #define ENOPROTOOPT WSAENOPROTOOPT diff -cr stunnel-4.15-orig/src/env.c stunnel-4.15/src/env.c *** stunnel-4.15-orig/src/env.c Sat Jan 7 13:47:36 2006 --- stunnel-4.15/src/env.c Mon Jun 26 21:11:25 2006 *************** *** 31,45 **** /* getpeername() can't be declared in the following includes */ #define getpeername no_getpeername #include <sys/types.h> #include <sys/socket.h> /* for AF_INET */ #include <netinet/in.h> #include <arpa/inet.h> /* for inet_addr() */ #include <stdlib.h> /* for getenv() */ #ifdef __BEOS__ #include <be/bone/arpa/inet.h> /* for AF_INET */ #include <be/bone/sys/socket.h> /* for AF_INET */ - #else - #include <sys/socket.h> /* for AF_INET */ #endif #undef getpeername --- 31,52 ---- /* getpeername() can't be declared in the following includes */ #define getpeername no_getpeername #include <sys/types.h> + #ifdef USE_WIN32 + #ifdef _WIN32_WCE + #include <winsock.h> + #else + #include <winsock2.h> + #include <ws2tcpip.h> + #endif /* _WIN32_WCE */ + #else /* USE_WIN32 */ #include <sys/socket.h> /* for AF_INET */ #include <netinet/in.h> #include <arpa/inet.h> /* for inet_addr() */ + #endif /* USE_WIN32 */ #include <stdlib.h> /* for getenv() */ #ifdef __BEOS__ #include <be/bone/arpa/inet.h> /* for AF_INET */ #include <be/bone/sys/socket.h> /* for AF_INET */ #endif #undef getpeername diff -cr stunnel-4.15-orig/src/vc.mak stunnel-4.15/src/vc.mak *** stunnel-4.15-orig/src/vc.mak Sat Jan 21 10:17:32 2006 --- stunnel-4.15/src/vc.mak Tue Jun 27 21:02:15 2006 *************** *** 1,2 **** ! # makefile for VC is not ready... --- 1,45 ---- ! # Simple Makefile.w32 for stunnel.exe by Michal Trojnara 1998-2006 ! # ! # Modified by David Gillingham (dgillingham(a)gmail.com) for Visual ! # Studio ! ! # Modify this to point to your actual openssl compile directory ! # (You did already compile openssl, didn't you???) ! SSLDIR=..\..\openssl-0.9.7j ! ! DEFINES=-DUSE_WIN32 -D_CRT_SECURE_NO_DEPRECATE \ ! -D_CRT_NONSTDC_NO_DEPRECATE -DHAVE_GETADDRINFO \ ! -DHAVE_GETNAMEINFO -D_MBCS ! CC=cl ! CFLAGS=-MD -W3 -Ox -O2 -Ob2 -Gs0 -GF -Gy -GL -nologo \ ! -I"$(SSLDIR)\inc32" $(DEFINES) ! ! LINK=link ! LDFLAGS=-INCREMENTAL:NO -NOLOGO -SUBSYSTEM:WINDOWS -OPT:REF \ ! -OPT:ICF -LTCG -MACHINE:X86 -ERRORREPORT:PROMPT ! LIBS=-LIBPATH:"$(SSLDIR)\out32dll" wsock32.lib ssleay32.lib \ ! libeay32.lib user32.lib gdi32.lib shell32.lib comdlg32.lib \ ! advapi32.lib ! ! OBJS=stunnel.obj ssl.obj ctx.obj file.obj client.obj protocol.obj \ ! sthreads.obj log.obj options.obj network.obj resolver.obj \ ! gui.obj ! ! ! all: stunnel.exe ! ! clean: ! del $(OBJS) resources.res ! del *.manifest ! del stunnel.exe ! ! stunnel.exe: $(OBJS) resources.res ! $(LINK) $(LDFLAGS) $(LIBS) -OUT:$@ $** ! IF EXIST [email protected] mt -manifest [email protected] -outputresource:$@;1 ! ! resources.res: resources.rc resources.h stunnel.ico ! rc /fo $@ resources.rc ! ! $(OBJS): $*.c *.h ! $(CC) $(CFLAGS) -c $*.c

2 1

stunnel in proxy mode won't start
by Dave Hinz 28 Jun '06

28 Jun '06

I'm trying to run stunnel in proxy mode, to accept connections on port 443, and forward them to an application listening at port 9999 on the same box. I believe I have the configuration correct, but I'm obviously overlooking something. Environment: stunnel 4.15 on sparc-sun-solaris2.9 with OpenSSL 0.9.7g 11 Apr 2005 I have built an stunnel.conf file, and a stunnel.pem file which are located in the correct place with the right permissions. I verified that by moving or changing permissions and seeing that errors were produced. I've changed the debug level to 7, and the following information is displayed when I try to start stunnel: cert# stunnel 2006.06.28 13:01:14 LOG7[9088:1]: Snagged 64 random bytes from /users/dave/.rnd 2006.06.28 13:01:14 LOG7[9088:1]: Wrote 1024 new random bytes to /users/dave/.rnd 2006.06.28 13:01:14 LOG7[9088:1]: RAND_status claims sufficient entropy for the PRNG 2006.06.28 13:01:14 LOG6[9088:1]: PRNG seeded successfully 2006.06.28 13:01:14 LOG7[9088:1]: Certificate: /usr/local/etc/stunnel/stunnel.pem 2006.06.28 13:01:14 LOG7[9088:1]: Key file: /usr/local/etc/stunnel/stunnel.pem 2006.06.28 13:01:14 LOG7[9088:1]: Verify directory set to / 2006.06.28 13:01:14 LOG5[9088:1]: Peer certificate location / 2006.06.28 13:01:14 LOG7[9088:1]: SSL context initialized for service test cert# Same thing if I run it as stunnel stunnel.conf -fd The prompt comes back immediately, ps -ef shows no stunnel running, and nothing is answering on port 443 which is where I'm telling it to listen: stunnel.conf file: cert = /usr/local/etc/stunnel/stunnel.pem chroot = /usr/local/etc/stunnel # PID is created inside chroot jail pid = /pid/stunnel.pid #setuid = nobody #setgid = nogroup # Authentication stuff verify = 3 # don't forget about c_rehash CApath # it is located inside chroot jail: CApath = / # Some debugging stuff debug = 7 output = stunnel.log # Use it for client mode client = no # Service-level configuration [test] accept = 127.0.0.1:443 connect = 127.0.0.1:9999 #TIMEOUTclose = 0 ---end stunnel.conf file--- The pem files are located in the same directory as the stunnel.conf, hence the "/" for the pathname above. What am I overlooking please?

1 0

stunnel.cfg file
by Dheeraj Sehrawat 28 Jun '06

28 Jun '06

Hi All, I am looking at a problem and found the system is using stunnel with web server. From my google search I have understood that stunnel is used to make the application SSL enable. Please validate my understanding. I found following stunnel.cfg file in properties directory Port0 Enabled=0 ExternalPort=0 LocalPort=0 SSLEnabled=0 UDP=0 Port1 Enabled=1 ExternalPort=1500 LocalPort=10080 SSLEnabled=0 Port2 Enabled=0 ExternalPort=1600 LocalPort=10080 SSLEnabled=1 ------------------------------------------------------ I have the following questions: 1] what is the meaning of ExternalPort and LocalPort ? How does these ports relate with each other? Please help me in understanding this configuration file. Thanks, Dheeraj __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

1 0

Re: enabling zlib compression
by ahall＠madasafish.com 27 Jun '06

27 Jun '06

I'd really like to get this working, but I'm not sure what other information you require? All other posts on this subject refer to making sure zlib is included when openssl is compiled. Well, I've confirmed that it is. Would a strace of stunnel attempting to start up help? FYI - The output of stunnel -version displays... stunnel 4.15 on i686-pc-linux-gnu with OpenSSL 0.9.7a Feb 19 2003 Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv4 Auth:LIBWRAP Could someone please provide me with some suggestions. Thanks very much. On Mon, 26 Jun 2006 13:09:36 , <ahall(a)madasafish.com> sent: >OK - after checking the OpenSSL src-rpm I can confirm that zlib is compiled... > >./Configure \ > --prefix=%{_prefix} --openssldir=%{_datadir}/ssl ${sslflags} \ > zlib no-idea no-mdc2 no-rc5 no-ec shared \ > --with-krb5-flavor=MIT \ > -I%{_prefix}/kerberos/include -L%{_prefix}/kerberos/%{_lib} \ > ${sslarch} > >Any ideas why the "compression=zlib" option still produces the "Failed to add >zlib compression method" error? > >Thanks very much. > > >>On Fri, 23 Jun 2006 17:01:24 , ahall(a)madasafish.com> sent: >> >>>Hi there, >>> >>>When I try to enable zlib compression at the server I get this error when >>>starting it up... >>> >>>2006.06.23 15:44:39 LOG3[3426:3086293504]: Failed to add zlib compression method >>> >>>How do I get zlib to work? Do I need to compile OpenSSL with zlib? >>> >>>I'm using Fedora Core 3 with stunnel-4.15, and OpenSSL and zlib are from RPM's. >>> >>>Thanks very much. > >---- - Madasafish - Voted Best Heavy Consumer Broadband Provider in the 2006 Internet Industry Awards http://www.madasafish.com/ ---- - Madasafish - Voted Best Heavy Consumer Broadband Provider in the 2006 Internet Industry Awards http://www.madasafish.com/

1 0

Patch to fix compile errors under MS Visual C++ 2005
by David Gillingham 26 Jun '06

26 Jun '06

Attached is a patch for stunnel 4.15 that allows the source to be built under Microsoft Visual Studio 2005. Here's a rundown of what's been changed: In common.h, I included io.h and fcntl.h so that pty.c would build without error. In env.c, I included the winsock headers (replicating how it was done for common.h), and removed a duplicate include of sys/socket.h. The latter change wasn't necessary for compiliation with MSVC, but I thought I'd remove what looked like an unncessary line. To get stunnel to build without warning, I defined the following preprocessor definitions: USE_WIN32 _CRT_SECURE_NO_DEPRECATE _CRT_NONSTDC_NO_DEPRECATE HAVE_GETADDRINFO HAVE_GETNAMEINFO _MBCS Later in the week, I'll post a patch to vs.mak to automate the build process (I'm still building with a solution file at the moment). To the stunnel developers: If there's anything extra I can do to ensure these changes are incorporated into the next release, please let me know.

1 0

Re: enabling zlib compression
by ahall＠madasafish.com 26 Jun '06

26 Jun '06

OK - after checking the OpenSSL src-rpm I can confirm that zlib is compiled... ./Configure \ --prefix=%{_prefix} --openssldir=%{_datadir}/ssl ${sslflags} \ zlib no-idea no-mdc2 no-rc5 no-ec shared \ --with-krb5-flavor=MIT \ -I%{_prefix}/kerberos/include -L%{_prefix}/kerberos/%{_lib} \ ${sslarch} Any ideas why the "compression=zlib" option still produces the "Failed to add zlib compression method" error? Thanks very much. >On Fri, 23 Jun 2006 17:01:24 , ahall(a)madasafish.com> sent: > >>Hi there, >> >>When I try to enable zlib compression at the server I get this error when >>starting it up... >> >>2006.06.23 15:44:39 LOG3[3426:3086293504]: Failed to add zlib compression method >> >>How do I get zlib to work? Do I need to compile OpenSSL with zlib? >> >>I'm using Fedora Core 3 with stunnel-4.15, and OpenSSL and zlib are from RPM's. >> >>Thanks very much. ---- - Madasafish - Voted Best Heavy Consumer Broadband Provider in the 2006 Internet Industry Awards http://www.madasafish.com/

1 0

Re: enabling zlib compression
by ahall＠madasafish.com 26 Jun '06

26 Jun '06

I have checked the OpenSSL INSTALL file and zlib /should/ be enabled by default... zlib-dynamic Like "zlib", but has OpenSSL load the zlib library dynamically when needed. This is only supported on systems where loading of shared libraries is supported. This is the default choice. If I can assume that Linux supports the loading of shared libraries, then can someone please help me to get zlib compression working over the stunnel. Thanks very much. On Fri, 23 Jun 2006 17:01:24 , <ahall(a)madasafish.com> sent: >Hi there, > >When I try to enable zlib compression at the server I get this error when >starting it up... > >2006.06.23 15:44:39 LOG3[3426:3086293504]: Failed to add zlib compression method > >How do I get zlib to work? Do I need to compile OpenSSL with zlib? > >I'm using Fedora Core 3 with stunnel-4.15, and OpenSSL and zlib are from RPM's. > >Thanks very much. > >---- - Madasafish - Voted Best Heavy Consumer Broadband Provider in the 2006 Internet Industry Awards http://www.madasafish.com/ ---- - Madasafish - Voted Best Heavy Consumer Broadband Provider in the 2006 Internet Industry Awards http://www.madasafish.com/

1 0

Solaris9/Sparc runtime library problems
by Dave Hinz 23 Jun '06

23 Jun '06

This is probably a very basic problem, but I've checked the FAQ and googled through the mailing list's archives and I'm not seeing what appears to be a match for this problem. I'm completely new to stunnel. It built and runs just fine on one of my linux dev boxes, but on Solaris, I can't get it to run. Attempting to run /usr/local/sbin/stunnel, I get the following: ---begin output--- jabba% ./stunnel ld.so.1: ./stunnel: fatal: libssl.so.0.9.7: open failed: No such file or directory Killed ---end output--- The various debug switches to stunnel give the same output - it's dying before anything can be started, apparently. libssl.so.0.9.7 is located on that box at /usr/local/ssl/lib/libssl.so.0.9.7and other ssl functions of the system appear to work normally. I suspect that stunnel just doesn't know how to find it, but I'm at a loss as to how to tell it where to look. Can someone suggest my next steps please? Thank you, Dave Hinz

2 1

Patch for stunnel 4.15 to support pgsql protocol
by Peter Kuma 23 Jun '06

23 Jun '06

Hi I've written a short patch for stunnel 4.15 adding support for PostgreSQL SSL negotiation. I hope it'll be useful. http://vcielka.rec.uniba.sk/~peter/stunnel-pgsql.patch PostgreSQL documentation explaining how to establish SSL connection: http://www.postgresql.org/docs/8.1/interactive/protocol-flow.html#AEN60652 http://www.postgresql.org/docs/8.1/interactive/protocol-message-formats.html Regards Peter Kuma

1 0

enabling zlib compression
by ahall＠madasafish.com 23 Jun '06

23 Jun '06

Hi there, When I try to enable zlib compression at the server I get this error when starting it up... 2006.06.23 15:44:39 LOG3[3426:3086293504]: Failed to add zlib compression method How do I get zlib to work? Do I need to compile OpenSSL with zlib? I'm using Fedora Core 3 with stunnel-4.15, and OpenSSL and zlib are from RPM's. Thanks very much. ---- - Madasafish - Voted Best Heavy Consumer Broadband Provider in the 2006 Internet Industry Awards http://www.madasafish.com/

1 0

Re: CRLPath not working (Michal Trojnara)
by Nagasundaram, Sekhar 15 Jun '06

15 Jun '06

Michael: We will give this also a shot. The workaround worked however. Much thanks Sekhar ---------------- Message: 4 Date: Tue, 13 Jun 2006 23:44:50 +0200 From: Michal Trojnara <Michal.Trojnara(a)mobi-com.net> Subject: Re: [stunnel-users] CRLPath not working To: stunnel-users(a)mirt.net Message-ID: <200606132344.53413.Michal.Trojnara(a)mobi-com.net> Content-Type: text/plain; charset="utf-8" On Tuesday 13 June 2006 02:14, Nagasundaram, Sekhar wrote: > Here are the configuration and the log files as you requested.... Thank you. Please try the following change: --- ctx.old 2006-06-13 23:33:29.000000000 +0200 +++ ctx.c 2006-06-13 23:35:33.000000000 +0200 @@ -460,6 +460,7 @@ s_log(LOG_DEBUG, "Loaded CRLs from %s", section->crl_file); } if(section->crl_dir) { + section->revocation_store->cache=0; lookup=X509_STORE_add_lookup(section->revocation_store, X509_LOOKUP_hash_dir()); if(!lookup) { BTW: Did my workaround work? Best regards, Mike

1 0

RE: [stunnel-users] Is there a limit to the number of services youcanhave defined on a client?
by Lund, Claus 14 Jun '06

14 Jun '06

Well, we need about 100+ in our current environment. So how about increasing it to maybe 256? -Claus -----Original Message----- From: stunnel-users-bounces(a)mirt.net [mailto:[email protected]] On Behalf Of Michal Trojnara Sent: Wednesday, June 14, 2006 4:23 PM To: <stunnel-users(a)mirt.net> <stunnel-users(a)mirt.net> Subject: Re: [stunnel-users] Is there a limit to the number of services youcanhave defined on a client? On 2006-06-14, at 22:18, Lund, Claus wrote: > Any chance the default could be increased? Really, what's 4MB of RAM > between friends (for the example in your answer)? :-) Okay. What value do you recommend? > And maybe implement an error/warning message when the limit is > exceeded? Good idea. I'll do it. Best regards, Mike _______________________________________________ stunnel-users mailing list stunnel-users(a)mirt.net http://stunnel.mirt.net/mailman/listinfo/stunnel-users

1 0

RE: [stunnel-users] Is there a limit to the number of services youcan have defined on a client?
by Lund, Claus 14 Jun '06

14 Jun '06

Thanks Mike. Any chance the default could be increased? Really, what's 4MB of RAM between friends (for the example in your answer)? :-) And maybe implement an error/warning message when the limit is exceeded? -Claus -----Original Message----- From: stunnel-users-bounces(a)mirt.net [mailto:[email protected]] On Behalf Of Michal Trojnara Sent: Wednesday, June 14, 2006 4:11 PM To: <stunnel-users(a)mirt.net> <stunnel-users(a)mirt.net> Subject: Re: [stunnel-users] Is there a limit to the number of services youcan have defined on a client? On 2006-06-14, at 21:20, Lund, Claus wrote: > I ran > some quick tests and it looks like it's impossible to have more than > 64 services defined? Here is your answer: http://stunnel.mirt.net/pipermail/stunnel-users/2006-April/001099.html Best regards, Mike _______________________________________________ stunnel-users mailing list stunnel-users(a)mirt.net http://stunnel.mirt.net/mailman/listinfo/stunnel-users

2 1

Is there a limit to the number of services you can have defined on a client?
by Lund, Claus 14 Jun '06

14 Jun '06

We have a bunch of middle-tier servers for an application and we're using stunnel to encrypt the traffic between the windows clients and those middle-tier servers. The clients have stunnel.conf files with a large number of services defined and it seems like we're hitting some limit in stunnel. I ran some quick tests and it looks like it's impossible to have more than 64 services defined? If I have a config file with about 100 services defined then everything works fine up until I try to connect to service number 65. When I try to connect to that service then the client just hangs forever (and there's no output in the log file on the client). We are using version 4.14 but I tested this on 4.15 as well and I am getting the same result there. Here's a piece of the config file I am using for testing: "client = yes ; Some performance tunings socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ; Some debugging stuff useful for troubleshooting debug = 7 output = stunnel.log [blah] accept = 13806 connect = tax187a:13806 [blah1] accept = 13807 connect = tax187a:13806" Then followed by blah2 - blah100. Things work fine when connect to "blah63" and lower. Anything higher than that cause the stunnel client to just hang. Thank you in advance, Claus ____________________________________________ Claus Lund Systems Developer NEW EMAIL ADDRESS: Claus.Lund(a)state.vt.us Department of Taxes Information Systems 133 State Street Montpelier, Vermont 05633-1401 (802) 828-3735

2 1

CRLPath not working
by Nagasundaram, Sekhar 13 Jun '06

13 Jun '06

Mike: Here are the configuration and the log files as you requested.... ---------------------------------------------BEGIN CONFIG --------------------------------- # switch-simulator stunnel configuration file # Copyright by Michal Trojnara 2002 # Certs and keys cert = /etc/certs/demoedge2-cert.pem key = /etc/keys/demoedge2-key.pem # PID is created inside chroot jail pid = /var/opt/stunnel/stunnel_server.pid # Authentication stuff verify = 2 options = NO_SSLv2 # don't forget about c_rehash CApath # it is located inside chroot jail: CApath = /etc/CApath # CRL path or file (inside chroot jail): CRLpath = /etc/crl # Some debugging stuff debug = local4.5 output = /var/opt/log/pras_test_server.log # Use it for client mode #client = no # Service-level configuration [APF] accept = 10.172.86.128:51101 connect = 127.0.0.1:50111 ----------------------------------------------END CONFIG ---------------------------------- --------------------------------------------- BEGIN LOG FILE ------------------------------- 2006.06.11 19:27:25 LOG5[8839:7]: CA CRL: Issuer: /C=US/O=VISA CRL ISSUER>, lastUpdate: Jun 9 07:00:02 2006 GMT, nextUpdate: Jun 10 08:00:02 2006 GMT 2006.06.11 19:27:25 LOG4[8839:7]: Found CRL is expired - revoking all certificates until you get updated CRL 2006.06.11 19:27:25 LOG3[8839:7]: SSL_accept: 140890B2: error:140890B2:SSL routines:SSL3_GET_CLIENT_CERTIFICATE:no certificate returned 2006.06.11 19:27:25 LOG5[8839:7]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2006.06.12 17:41:52 LOG5[8839:8]: APF connected from 10.172.86.96:35225 2006.06.12 17:41:52 LOG5[8839:8]: VERIFY OK: depth=2, /C=US/O=VISA/OU=Visa International Service Association/CN=TEST Visa Info Delivery Root CA 2006.06.12 17:41:52 LOG5[8839:8]: CA CRL: Issuer: /C=US/O=VISA CRL ISSUER>, , lastUpdate: Jun 9 07:00:02 2006 GMT, nextUpdate: Jun 10 08:00:02 2006 GMT 2006.06.12 17:41:52 LOG4[8839:8]: Found CRL is expired - revoking all certificates until you get updated CRL 2006.06.12 17:41:52 LOG3[8839:8]: SSL_accept: 140890B2: error:140890B2:SSL routines:SSL3_GET_CLIENT_CERTIFICATE:no certificate returned 2006.06.12 17:41:52 LOG5[8839:8]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2006.06.12 23:01:08 LOG5[8839:9]: APF connected from 10.172.86.96:35371 2006.06.12 23:01:08 LOG5[8839:9]: VERIFY OK: depth=2, <VISA CA> 2006.06.12 23:01:08 LOG5[8839:9]: CA CRL: Issuer: /C=US/O=VISA CRL ISSUER>, lastUpdate: Jun 9 07:00:02 2006 GMT, nextUpdate: Jun 10 08:00:02 2006 GMT 2006.06.12 23:01:08 LOG4[8839:9]: Found CRL is expired - revoking all certificates until you get updated CRL 2006.06.12 23:01:08 LOG3[8839:9]: SSL_accept: 140890B2: error:140890B2:SSL routines:SSL3_GET_CLIENT_CERTIFICATE:no certificate returned 2006.06.12 23:01:08 LOG5[8839:9]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket ------------------------------------------- END LOG FILE -------------------------------------- On 2006-06-12, at 22:17, Nagasundaram, Sekhar wrote: > We download crls everyday from a CRL server using LDAP and a cronjob. > These CRLs are stored in the CRLpath directory along with its hash. > It appears that the stunnel is not refreshing its cache, and it > still shows "Found CRL is expired - revoking all certificates until > you get updated CRL" when we try to connect to it even though there is > a > New and valid CRL in the CRLPath folder. Is there a special option > In Stunnel configuration for it to recognize/cache/add the new hash > file Just to make sure: the problem disappears after restarting stunnel, right? The simple workaround could be disabling all SSL caches: ./configure --with-threads=fork make clean make make install Can you send your stunnel.conf and debug log? TIA, Mike Sekhar Nagasundaram <<Nagasundaram, Sekhar.vcf>>

2 1

Modifying STunnel to use OpenSSL FIPS
by David Gillingham 13 Jun '06

13 Jun '06

As part of an internal project at work, I'm investigating a Windows tunneling solution using STunnel. As a requirement of my work, I am to modify STunnel to use OpenSSL's FIPS APIs. And, with only a couple of speedbumps, I was able to achieve this. However I'd like to make my code a little more robust--to provide some notification to the user if OpenSSL's FIPS mode is active or not. To this point I've not been able to figure out a way to do this. In my copy of the STunnel source, I've modified the routine ssl_init() in ssl.c to make a call to FIPS_mode_set(1) (as demonstrated on page 33 of http://www.openssl.org/docs/fips/UserGuide-1.0.pdf) Below is a copy of my current copy of ssl_init(): void ssl_init(void) { /* to keep CLI structure for verify callback */ #if defined(OPENSSL_FIPS) && defined(USE_FIPS) if (!FIPS_mode_set(1)) { s_log(LOG_CRIT, "Could not set FIPS mdoe!"); } else { s_log(LOG_INFO, "In FIPS mode."); } #endif /* rest of ssl_init() from original source */ } As I've found out, the s_log calls do nothing because the STunnel window has not been displayed yet. Ideally, in the case where the FIPS_mode_set() call fails, I'd like to invoke an error handler to cause the STunnel service to fail to start. But trying to make a call to something like sslerror() caused a program crash. Any ideas on how to make these changes?

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RE: [stunnel-users] socket closed after SSL_write
by Srilalitha Muralidhara(HCL Capital Market Services) 13 Jun '06

13 Jun '06

Thanks Michal. How do I disable the socket from sending TCP RST and instead make it send TCP FIN? It might be a very basic question. Sorry about that. Thanks Sri Srilalitha Muralidhara Rates IT Report Server HCL Capital Market Services ( 91.80.4190.6689 + 33/1,The Senate, Ulsoor Road, Bangalore. India. This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden. -----Original Message----- From: stunnel-users-bounces(a)mirt.net [mailto:[email protected]] On Behalf Of Michal Trojnara Sent: Monday, June 12, 2006 11:08 PM To: stunnel-users(a)mirt.net Subject: Re: [stunnel-users] socket closed after SSL_write On Monday 12 June 2006 12:01, Srilalitha Muralidhara wrote: > 2006.06.12 10:47:45 LOG7[19699:28]: SSL alert (write): warning: close > notify Clean SSL shutdown alert was received. > 2006.06.12 10:47:50 LOG3[19699:28]: SSL_read: Connection reset by peer > (131) ... and then TCP RST! Strange. It looks like your application has set SO_LINGER option on its socket, so it sends TCP RST instead of TCP FIN packet. Best regards, Mike Disclaimer: *********** The contents of this E-mail (including the contents of the enclosure(s) or attachment(s) if any) are privileged and confidential material of HCL Capital Market Services and should not be disclosed to, used by or copied in any manner by anyone other than the intended addressee(s). In case you are not the desired addressee, you should delete this message and/or re-direct it to the sender. The views expressed in this E-mail message (including the enclosure(s) or attachment(s) if any) are those of the individual sender, except where the sender expressly, and with authority, states them to be the views of HCL Capital Market Services. This e-mail message including attachment/(s), if any, is believed to be free of any virus. However, it is the responsibility of the recipient to ensure that it is virus free and HCL Capital Market Services is not responsible for any loss or damage arising in any way from its use.

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CRLPath not working
by Nagasundaram, Sekhar 12 Jun '06

12 Jun '06

All: We download crls everyday from a CRL server using LDAP and a cronjob. These CRLs are stored in the CRLpath directory along with its hash. It appears that the stunnel is not refreshing its cache, and it still shows "Found CRL is expired - revoking all certificates until you get updated CRL" when we try to connect to it even though there is a New and valid CRL in the CRLPath folder. Is there a special option In Stunnel configuration for it to recognize/cache/add the new hash file All help is appreciated. Thanks Sekhar

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Re: [stunnel-users] Comparing with BarracudaDrive and Proxytunnel
by Michal Trojnara 12 Jun '06

12 Jun '06

On 2006-06-11, at 21:39, http s wrote: > I am curious if anyone has made a comparison of Stunnel with the > BarracudaDrive HTTPS tunnel and/or Proxytunnel? > > http://barracudaserver.com/examples/BarracudaDrive/HttpsTunnel/ > index.html 1. BarracudaDrive is *not* a free software (even though its home page claims so). See http://www.gnu.org/philosophy/free-sw.html for details. 2. It only works on Windows, Linux, QNX and Mac OS X. Compare it to the list on http://stunnel.mirt.net/. 3. BarracudaDrive is designed to be used for file transfer, while stunnel is a universal tool for encrypting TCP streams. As the result stunnel is much more flexible, but it won't perform any file transfer by itself. > http://proxytunnel.sourceforge.net 1. It's not really an encryption tool, but rather an extension for OpenSSH client. It has some optional basic SSL code (as for version 1.6.0), but it's currently broken. The code incorrectly assumes that SSL_read() only needs to read from a file descriptor and SSL_write() only needs to wrote to a file descriptor. 2. Proxytunnel supports NTLM authentication that is not currently supported by stunnel. 3. It looks like an interesting addition to stunnel on a Unix platform. The client configuration should be something like: [Proxytunnel] client = yes accept = 12345 exec = /path/to/proxytunnel execargs = proxytunnel -p proxy:8080 -u user -s pass -d mybox.athome.nl:443 4. Optional use of stunnel is recommended in README file of Proxytunnel 1.6.0. 8-) Best regards, Mike

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socket closed after SSL_write
by Srilalitha Muralidhara(HCL Capital Market Services) 12 Jun '06

12 Jun '06

Hi, I work on a client-server application that needs to be supported on both UNIX and windows platforms. Currently, we keep one socket open for all communication from client to server (during which many read-write operations take place) For user authentication and security purposes, we are planning to implement SSL-Stunnel. I have developed a small ssl client (based on sclient.c example) which connects to the Stunnel Server. Upon the first SSL_write, SSL is closing the underlying socket. Hence the contents written by subsequent SSL_write operations are not visible in the server log. I saw lot of posts on the same problem. But couldn't find the solution. Any help is greatly appreciated. Please note that: 1. Due platform independency issues, I use RWSocket (a Roguewave library class) instead of the BSD socket in conjunction with SSL. A potion of stunnel server log 2006.06.12 10:47:43 LOG7[19699:28]: FD 1 in non-blocking mode 2006.06.12 10:47:43 LOG7[19699:28]: rssvr connecting 127.0.0.1:28091 2006.06.12 10:47:43 LOG7[19699:28]: Remote FD=1 initialized 2006.06.12 10:47:43 LOG7[19699:28]: TCP_NODELAY option set on remote socket 2006.06.12 10:47:45 LOG7[19699:28]: Socket closed on read 2006.06.12 10:47:45 LOG7[19699:28]: SSL write shutdown 2006.06.12 10:47:45 LOG7[19699:28]: SSL alert (write): warning: close notify 2006.06.12 10:47:45 LOG7[19699:28]: SSL_shutdown retrying 2006.06.12 10:47:45 LOG7[19699:28]: SSL doesn't need to read or write 2006.06.12 10:47:50 LOG3[19699:28]: SSL_read: Connection reset by peer (131) 2006.06.12 10:47:50 LOG5[19699:28]: Connection reset: 0 bytes sent to SSL, 26 bytes sent to socket 2006.06.12 10:47:50 LOG7[19699:28]: linger (remote): Invalid argument (22) 2006.06.12 10:47:50 LOG7[19699:28]: linger (local): Invalid argument (22) 2006.06.12 10:47:50 LOG7[19699:28]: rssvr finished (0 left) Thanks Sri Srilalitha Muralidhara This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden. Disclaimer: *********** The contents of this E-mail (including the contents of the enclosure(s) or attachment(s) if any) are privileged and confidential material of HCL Capital Market Services and should not be disclosed to, used by or copied in any manner by anyone other than the intended addressee(s). In case you are not the desired addressee, you should delete this message and/or re-direct it to the sender. The views expressed in this E-mail message (including the enclosure(s) or attachment(s) if any) are those of the individual sender, except where the sender expressly, and with authority, states them to be the views of HCL Capital Market Services. This e-mail message including attachment/(s), if any, is believed to be free of any virus. However, it is the responsibility of the recipient to ensure that it is virus free and HCL Capital Market Services is not responsible for any loss or damage arising in any way from its use.

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Reposting...RE: stunnel-users Digest, Vol 23, Issue 2
by Nagasundaram, Sekhar 09 Jun '06

09 Jun '06

Any one... Is there a way to have Stunnel not stop accepting new connections after CRL expiry? See my questions below.. Any help is appreciated... Much thanks Sekhar ---------------------------------------------------------------------- Message: 1 Date: Tue, 6 Jun 2006 15:41:08 -0700 From: "Nagasundaram, Sekhar" <snagasun(a)visa.com> Subject: [stunnel-users] Processing during CRL expiry and refresh To: <stunnel-users(a)mirt.net> Message-ID: <F64762DF94A15C4EA22D250B28D98BE610093C(a)sw720ex064.visa.com> Content-Type: text/plain; charset="US-ASCII" All: I have 2 questions: 1. Is there a way to have Stunnel continue processing and accepting connections after the CRL expiry? Currently it gives a "revoking all certificates" error and stops accepting new connections. 2. Is there a configurable parameter through which we can have the CRL list refresh itself such that 1 above does not happen? Much Thanks in advance.. Sekhar ------------------------------ _______________________________________________ stunnel-users mailing list stunnel-users(a)mirt.net http://stunnel.mirt.net/mailman/listinfo/stunnel-users End of stunnel-users Digest, Vol 23, Issue 2 ********************************************

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syslog-ng over stunnel does not work for me
by Christoph Pleger 08 Jun '06

08 Jun '06

Hello, I set up a server and a client machine to test the combination of stunnel and syslog-ng. I followed the instructions in the example at http://www.stunnel.org/examples/syslog-ng.html, but the log messages are not sent correcly. The log on the server says: ****: syslog started ****: syslog connected from ###.###.###.###:51646 ****: SSL state (accept): before/accept initialization ****: SSL_accept: 140B544E: error: 140B544E: SSL routines:SSL_GET_NEW_SESSION:ssl session id callback failed ****: syslog finished (-1 left) The log on the client says: ****: syslog started ****: syslog connected from 127.0.0.1:3524 ****: FD 8 in non-blocking mode ****: syslog connecting ###.###.###.###:514 ****: connect_wait: waiting 10 seconds ****: connect_wait: connected ****: Remote FD=8 initialized ****: SSL state (connect): before/accept initialization ****: SSL state (connect): SSLv3 write client hello A ****: SSL_connect: Peer suddenly disconnected ****: syslog finished (0 left) Please help. Regards Christoph

1 1

Connection Reset by Peer
by Srilalitha Muralidhara(HCL Capital Market Services) 08 Jun '06

08 Jun '06

Hi, My stunnel server is unable to send data correctly to my application running the same machine. This happens when the client is run from windows platform. When client is run from UNIX everything works fine. The Stunnel Server log file says: 2006.06.05 11:54:54 LOG7[23141:8]: rssvr connecting 127.0.0.1:28091 2006.06.05 11:54:54 LOG7[23141:8]: Remote FD=1 initialized 2006.06.05 11:54:54 LOG7[23141:8]: TCP_NODELAY option set on remote socket 2006.06.05 11:54:54 LOG3[23141:8]: SSL_read: Connection reset by peer (131) 2006.06.05 11:54:54 LOG5[23141:8]: Connection reset: 0 bytes sent to SSL, 13 bytes sent to socket 2006.06.05 11:54:54 LOG5[23141:8]: linger (local): Invalid argument (22) 2006.06.05 11:54:54 LOG7[23141:8]: rssvr finished (0 left) ------------------------------------------------------------------------ -------------------------------------------------------------------- Does anybody know the cause of the problem? And hopefully the solution? Thanks Sri Disclaimer: *********** The contents of this E-mail (including the contents of the enclosure(s) or attachment(s) if any) are privileged and confidential material of HCL Capital Market Services and should not be disclosed to, used by or copied in any manner by anyone other than the intended addressee(s). In case you are not the desired addressee, you should delete this message and/or re-direct it to the sender. The views expressed in this E-mail message (including the enclosure(s) or attachment(s) if any) are those of the individual sender, except where the sender expressly, and with authority, states them to be the views of HCL Capital Market Services. This e-mail message including attachment/(s), if any, is believed to be free of any virus. However, it is the responsibility of the recipient to ensure that it is virus free and HCL Capital Market Services is not responsible for any loss or damage arising in any way from its use.

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decryption failed or bad record mac
by Trent Townsend 07 Jun '06

07 Jun '06

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I've emailed about this once already, but am just giving a *little* more info. It seems similar problems with SSL proliferate the web. The problem is below (message from the client and server posted). I thought it may be a bug reported with SSL and zlib (which a fix isn't due out until the next version of OpenSSL). However, I can successfully start up a openssl s_server and talk to it with a s_client, so I think that eliminates OpenSSL. Has anyone seen this before (I'm sure this is the case) and figured it out? Client: SSL_connect: 140943FC: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac Server: SSL_accept: 1408F455: error:1408F455:SSL routines:SSL3_GET_RECORD:decryption failed or bad record mac I'm using stunnel 4.11 (tried 4.15 also) and Openssl 0.9.8a. Thanks. -----BEGIN PGP SIGNATURE----- Version: PGP Desktop 9.0.6 (Build 6060) iQA/AwUBRIcbw40HAxBKv2yIEQI5XQCg2ylvhIBlZ57euv9/wu8fM5vI40cAoKKk L2bMgFZDc23T6ED6CGJJn8oy =+PA6 -----END PGP SIGNATURE-----

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RE: [stunnel-users] stunnel error
by Nadav, Erez 07 Jun '06

07 Jun '06

Hi, It seems that the problem occur when the client write large buffers (30-40Kbytes) on each write. Any idea how to solve it Thanks Erez ________________________________ From: stunnel-users-bounces(a)mirt.net [mailto:[email protected]] On Behalf Of Nadav, Erez Sent: Wednesday, June 07, 2006 6:00 PM To: stunnel-users(a)mirt.net Subject: [stunnel-users] stunnel error Hi, I use stunnel 4.14 and face this error when performing buffer writes from client to remote side SSL_write: 140D5042: error:140D5042:SSL routines:SSL3_CTRL:called a function you should not call Does anybody know how can I overcome this ??? Thanks Erez ________________________________________________________________________ __________________ This electronic message contains information from Verint Systems, which may be privileged and confidential. The information is intended to be for the use of the individual(s)or entity named above. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited. If you have received this electronic message in error, please notify us by replying to this email (1). __________________________________________________________________________________________ This electronic message contains information from Verint Systems, which may be privileged and confidential. The information is intended to be for the use of the individual(s)or entity named above. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited. If you have received this electronic message in error, please notify us by replying to this email (1).

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stunnel error
by Nadav, Erez 07 Jun '06

07 Jun '06

Hi, I use stunnel 4.14 and face this error when performing buffer writes from client to remote side SSL_write: 140D5042: error:140D5042:SSL routines:SSL3_CTRL:called a function you should not call Does anybody know how can I overcome this ??? Thanks Erez __________________________________________________________________________________________ This electronic message contains information from Verint Systems, which may be privileged and confidential. The information is intended to be for the use of the individual(s)or entity named above. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited. If you have received this electronic message in error, please notify us by replying to this email (1).

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Processing during CRL expiry and refresh
by Nagasundaram, Sekhar 06 Jun '06

06 Jun '06

All: I have 2 questions: 1. Is there a way to have Stunnel continue processing and accepting connections after the CRL expiry? Currently it gives a "revoking all certificates" error and stops accepting connections. 2. Is there a configurable parameter through which we can have the CRL list refresh itself such that 1 above does not happen? Much Thanks in advance.. Sekhar

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unsecure configuration
by Robert Bator 01 Jun '06

01 Jun '06

Hi , I am trying to set up stunnel to accept unsecure calls on port 1001 from inside and secure calls on port 1000 from internet. All calls are forwarded to machin B The configuration like this: secure --> 1000 machine A unsecure --> 1002 machine B unsecure --> 1001 machine A unsecure --> 1002 machine B Is this setup possible i stunnel? PS. I use "stone repeater" and this rules are easy to setup. Best Regards, Robert Bator

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stunnel and bad rsa signature
by Trent Townsend 30 May '06

30 May '06

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On a test environment, I successfully had stunnel securing MySQL traffic between 2 systems using a verify level of 3. However, with the production system and what I would call an identical setup (albeit with new certificates), I get the following errors (see log below.) The version I'm running of stunnel is 4.11. I saw the "bad rsa signature" message in the server's output, so I regenerated the private key file to be sure I'd used the right one. Everything seems to be in order, but it will not work. Any ideas? Client: 2006.05.30 09:20:21 LOG5[21951:1]: stunnel 4.11 on i686-pc-linux-gnu UCONTEXT+POLL+IPv4+LIBWRAP with OpenSSL 0.9.7a Feb 19 2003 2006.05.30 09:20:21 LOG5[21951:1]: 499 clients allowed 2006.05.30 09:20:25 LOG5[21951:2]: stunnel_mysql connected from 127.0.0.1:32853 2006.05.30 09:20:25 LOG3[21951:2]: SSL_connect: 14094410: error: 14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert handshake failure 2006.05.30 09:20:25 LOG5[21951:2]: stack_info: size=65536, current=15296 (23%), maximum=15296 (23%) Server: 2006.05.30 09:19:42 LOG7[19964:3086334176]: RAND_status claims sufficient entropy for the PRNG 2006.05.30 09:19:42 LOG6[19964:3086334176]: PRNG seeded successfully 2006.05.30 09:19:42 LOG7[19964:3086334176]: Certificate: /usr/KRB5/ openssl/ssl/private/server.key 2006.05.30 09:19:42 LOG7[19964:3086334176]: Key file: /usr/KRB5/ openssl/ssl/private/server.key 2006.05.30 09:19:42 LOG7[19964:3086334176]: Verify directory set to / usr/KRB5/openssl/ssl/certs 2006.05.30 09:19:42 LOG5[19964:3086334176]: Peer certificate location /usr/KRB5/openssl/ssl/certs 2006.05.30 09:19:42 LOG7[19964:3086334176]: SSL context initialized for service stunnel_mysqld 2006.05.30 09:19:42 LOG5[19964:3086334176]: stunnel 4.15 on i686-pc- linux-gnu with OpenSSL 0.9.7a Feb 19 2003 2006.05.30 09:19:42 LOG5[19964:3086334176]: Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv4 Auth:LIBWRAP 2006.05.30 09:19:42 LOG6[19964:3086334176]: file ulimit = 1022 (can be changed with 'ulimit -n') 2006.05.30 09:19:42 LOG6[19964:3086334176]: poll() used - no FD_SETSIZE limit for file descriptors 2006.05.30 09:19:42 LOG5[19964:3086334176]: 499 clients allowed 2006.05.30 09:19:42 LOG7[19964:3086334176]: FD 4 in non-blocking mode 2006.05.30 09:19:42 LOG7[19964:3086334176]: FD 5 in non-blocking mode 2006.05.30 09:19:42 LOG7[19964:3086334176]: FD 6 in non-blocking mode 2006.05.30 09:19:42 LOG7[19964:3086334176]: SO_REUSEADDR option set on accept socket 2006.05.30 09:19:42 LOG7[19964:3086334176]: stunnel_mysqld bound to 0.0.0.0:606 2006.05.30 09:19:42 LOG7[19964:3086334176]: Created pid file /usr/ local/var/stunnel/stunnel.pid 2006.05.30 09:20:40 LOG7[19964:3086334176]: stunnel_mysqld accepted FD=7 from xxx.xxx.xxx.xxx:32854 2006.05.30 09:20:40 LOG7[19964:3086330800]: stunnel_mysqld started 2006.05.30 09:20:40 LOG7[19964:3086330800]: FD 7 in non-blocking mode 2006.05.30 09:20:40 LOG7[19964:3086330800]: FD 8 in non-blocking mode 2006.05.30 09:20:40 LOG7[19964:3086330800]: FD 9 in non-blocking mode 2006.05.30 09:20:40 LOG7[19964:3086330800]: Connection from xxx.xxx.xxx.xxx:32854 permitted by libwrap 2006.05.30 09:20:40 LOG5[19964:3086330800]: stunnel_mysqld connected from xxx.xxx.xxx.xxx:32854 2006.05.30 09:20:40 LOG7[19964:3086334176]: Cleaning up the signal pipe 2006.05.30 09:20:40 LOG6[19964:3086334176]: Child process 19967 finished with code 0 2006.05.30 09:20:40 LOG5[19964:3086330800]: VERIFY OK: depth=2, ... (Root CA) 2006.05.30 09:20:40 LOG5[19964:3086330800]: VERIFY OK: depth=1, ... (CA) 2006.05.30 09:20:40 LOG5[19964:3086330800]: VERIFY OK: depth=0, ... (client) 2006.05.30 09:20:40 LOG3[19964:3086330800]: error stack: 1408807A : error:1408807A:SSL routines:SSL3_GET_CERT_VERIFY:bad rsa signature 2006.05.30 09:20:40 LOG3[19964:3086330800]: SSL_accept: 4077068: error:04077068:rsa routines:RSA_verify:bad signature 2006.05.30 09:20:40 LOG5[19964:3086330800]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2006.05.30 09:20:40 LOG7[19964:3086330800]: stunnel_mysqld finished (0 left) Thanks. -----BEGIN PGP SIGNATURE----- Version: PGP Desktop 9.0.6 (Build 6060) iQA/AwUBRHx+bI0HAxBKv2yIEQIJ1wCcCVJ+9ZqXdxWGTBAS8y7ldUv+J4UAn1al ZYIA5gmw38iwsYuE7tG9esAk =ljGb -----END PGP SIGNATURE-----

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Problem getting stunnel to chroot on Suse 10
by Paul Stepowski 29 May '06

29 May '06

Hi list, I'm using stunnel package that comes standard with Suse 10.0 stunnel 4.10 on i686-suse-linux-gnu UCONTEXT+POLL+IPv4+LIBWRAP with OpenSSL 0.9.7g 11 Apr 2005 I can tunnel ports over ssl using stunnel but the chroot directive doesn't seem to be working. E.g. my pid file is being created under / rather than /var/lib/stunnel-syslogng. The other paths in the config file are taken by stunnel as relative to / rather than the chroot directory. What am I missing? Here's my stunnel config. I'm not passing any other flags when running stunnel. ---snip--- client = no #debug = 7 #foreground = yes chroot = /var/lib/stunnel-syslogng setuid = stunnel setgid = nogroup pid = /stunnel.pid #output = stunnel.log socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 #compression = rle #options = DONT_INSERT_EMPTY_FRAGMENTS #verify = 2 #CApath = /certs #CAfile = /certs/stunnel.pem #CRLpath = /crls #CRLfile = /etc/stunnel/crls.pem cert = /var/lib/stunnel-syslogng/certs/stunnel.pem ---snip--- Thanks, Paul

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Re: [stunnel-users] stunnel-4.15 segfaulting and looping under FreeBSD-CURRENT
by Michael Weiser 26 May '06

26 May '06

On Wed, May 17, 2006 at 06:01:37PM +0200, Michael Weiser wrote: > > I'm now retrying with a freshly compiled openssl-0.9.8b to see if that has > > anything to do with anything. > The problem persists with openssl-0.9.8b: > # gdb src/stunnel --core stunnel.core --batch -ex "thread apply all bt > full" -ex "quit" > Core was generated by `stunnel'. > Program terminated with signal 11, Segmentation fault. > #0 0x280d07b5 in SSL_get_peer_certificate () from > ../bin/openssl-0.9.8b/lib/libssl.so.0.9.8 > [New LWP 100077] The problem is triggered by a change to src/client.c in stunnel-4.15. client() now loops over calls to run_client() instead of doing it just once. The first, successful (!) call to run_client() seems to leave the ssl context in an undefined state which makes the following calls to run_client() segfault in the forked child which in turn produces the core file. My guess is, that it's not actually supposed to loop if the call to run_client() is successful. Reverting client.c to roughly 4.14 fixes the problem for me. A patch is attached. Any insights and a more permanent fix would be highly appreciated. BTW: I configured stunnel with --with-threads=pthread. By default, ucontext is detected, which is broken in stunnel-4.14 as well. After finishing, 4.14 hangs in s_poll_wait waiting for -1 seconds on 0 fds (!?). I can provide debugging log and gdb output if needed. -- bye, Michael

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DNS Spoofing
by Happy Manocha 25 May '06

25 May '06

Hello All, >From Website I came to know Stunnel can help in DNS spoofing. Can someone redirect to know how this can be achieved. Stunnel can help: Protect interception of data Prevent manipulation of data And, if compiled with libwrap support: Defend against IP source routing, (one host sending packets as if they came from somewhere else) DNS spoofing (an attacker forging name server records) Regds Happy Manocha

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stunnel + socks v5
by Carlos E. Mansilla G. 25 May '06

25 May '06

I need to know please, if can I accept connections from sock5 clients in stunnel4.. thnx. Carlos Mansilla

1 0

stunnel + socks v5
by Carlos E. Mansilla G. 25 May '06

25 May '06

I need to know please, if can I accept connections from sock5 clients in stunnel4.. thnx. Carlos Mansilla

1 0

libwrap support
by Happy Manocha 24 May '06

24 May '06

Hello All, Can someone throw some light on libwrap support feature of stunnel? What it is and how it can be used? Thanks in advance. Regds Happy Manocha

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Using a signed *.domain.com with ssl - Getting "unable to get local issuer certificate"
by Pritesh Mehta 24 May '06

24 May '06

Hello all, I have had a good hunt around and am having trouble finding a solution. I am using stunnel to provide encrypted pop3 access to our mail server, and we have recently purchased a signed *.XXX.com certificate from godaddy. This has been great since I can use the same cert on all our servers, and this has worked cleanly with the webservices. However, I am having some issues with the stunnel and pop3 service. I am not entirely certain whether it is caused by the *.XXX.com certificate (although I think it unlikely) but was hoping someone more knowledgeable could enlighten me? I currently have stunnel configured thusly: stunnel -f \ -A /etc/stunnel/certs/sf_issuing.pem \ -p /etc/stunnel/certs/wildcard.XXX.com.stunnel.pem \ -r 127.0.0.1:110 Unfortunately my users are getting warnings, and using the openssl client I get: $ openssl s_client -connect mail.XXX.com:995 CONNECTED(00000003) depth=1 /C=US/ST=Arizona/L=Scottsdale/O=Starfield Technologies, Inc./OU=http://www.starfieldtech.com/repository/CN=Starfield Secure Certification Authority/emailAddress=practices(a)starfieldtech.com verify error:num=20:unable to get local issuer certificate verify return:0 --- Certificate chain 0 s:/O=*.XXX.com/OU=Domain Control Validated/CN=*.XXX.com i:/C=US/ST=Arizona/L=Scottsdale/O=Starfield Technologies, Inc./OU=http://www.starfieldtech.com/repository/CN=Starfield Secure Certification Authority/emailAddress=practices(a)starfieldtech.com 1 s:/C=US/ST=Arizona/L=Scottsdale/O=Starfield Technologies, Inc./OU=http://www.starfieldtech.com/repository/CN=Starfield Secure Certification Authority/emailAddress=practices(a)starfieldtech.com i:/L=ValiCert Validation Network/O=ValiCert, Inc./OU=ValiCert Class 2 Policy Validation Authority/CN=http://www.valicert.com//[email protected] --- Server certificate -----BEGIN CERTIFICATE----- [snip] -----END CERTIFICATE----- subject=/O=*.XXX.com/OU=Domain Control Validated/CN=*.XXX.com issuer=/C=US/ST=Arizona/L=Scottsdale/O=Starfield Technologies, Inc./OU=http://www.starfieldtech.com/repository/CN=Starfield Secure Certification Authority/emailAddress=practices(a)starfieldtech.com --- No client certificate CA names sent --- SSL handshake has read 2381 bytes and written 340 bytes --- New, TLSv1/SSLv3, Cipher is AES256-SHA Server public key is 1024 bit Compression: NONE Expansion: NONE SSL-Session: Protocol : TLSv1 Cipher : AES256-SHA Session-ID: 4E550C07BDA9661C4B532A28110E5616549CB9FA72D37E5C979E3C6579F8FB99 Session-ID-ctx: Master-Key: 2E588101AA098463FA40C0353009F5842FA19B1C3D48D9A0000EB2E241EFB70BB10D52FE9BC444344D49653B9FEB25F4 Key-Arg : None Start Time: 1148463445 Timeout : 300 (sec) Verify return code: 20 (unable to get local issuer certificate) --- I am positive this must have been covered before somewhere, but I haven't been able to find anything conclusive. Apologies if I'm covering well trodden ground :) TIA, -- Pritesh Mehta <pmehta(a)gnr.com> Global Name Registry _____________________________________________________ Information contained herein is Global Name Registry Proprietary Information and/or Registry Sensitive Information and is made available to you because of your interest in or affiliation with our company. This information is submitted in confidence and its disclosure to you is not intended to constitute public disclosure or authorization for disclosure to other parties. Should you have received this email and are not an intended recipient, please delete this email in its entirety. Global Name Registry is registered with the Office of the UK Information Commissioner.

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<Stunnel> multiple connection
by aliquippa1 23 May '06

23 May '06

Hello I have problem with stunnel. I want to use feature which I'm not sure if is available. I want to accept connection from a host and then connect to a few hosts. I want to have something like this: accept = xxx.xxx.xxx.xxx:xxxx connect = yyy.yyy.yyy.yyy:yyyy connect = zzz.zzz.zzz.zzz:zzzz connect = vvv.vvv.vvv.vvv:vvv Now I want to get such situation: 1.accept connection from xxx. 2.try to connect to yyy. 3 if it doesn't work try to connect to zzz. 4 if it doesn't work try to connect to vvv. I wonder if it's possible, because if I use stunnel and connect from xxx it connects me only to the first host and when I connect from xxx again it connects me to the second host and after the third trial from xxx it connects me to vvv. Thanx Agnes

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SSL23_GET_CLIENT_HELLO:unknown protocol
by Srilalitha Muralidhara(HCL Capital Market Services) 22 May '06

22 May '06

Hi I am getting SSL23_GET_CLIENT_HELLO:unknown protocol error stunnel. Any guesses about the cause of the problem? Here is the complete log 2006.05.22 07:01:55 LOG5[734:1]: stunnel 4.15 on sparc-sun-solaris2.6 with OpenSSL 0.9.8b 04 May 2006 2006.05.22 07:01:55 LOG5[734:1]: Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv4 Auth:LIBWRAP 2006.05.22 07:01:55 LOG6[734:1]: file ulimit = 64 (can be changed with 'ulimit -n') 2006.05.22 07:01:55 LOG6[734:1]: poll() used - no FD_SETSIZE limit for file descriptors 2006.05.22 07:01:55 LOG5[734:1]: 29 clients allowed 2006.05.22 07:01:55 LOG7[734:1]: FD 5 in non-blocking mode 2006.05.22 07:01:55 LOG7[734:1]: FD 6 in non-blocking mode 2006.05.22 07:01:55 LOG7[734:1]: FD 7 in non-blocking mode 2006.05.22 07:01:55 LOG7[734:1]: SO_REUSEADDR option set on accept socket 2006.05.22 07:01:55 LOG7[734:1]: rssvr bound to 10.140.42.11:25433 2006.05.22 07:01:55 LOG7[735:1]: Created pid file /home/sri/stunnel/var/lib/stunnel/stunnel.pid 2006.05.22 07:04:09 LOG7[735:1]: rssvr accepted FD=0 from 10.140.42.11:44360 2006.05.22 07:04:09 LOG7[735:4]: rssvr started 2006.05.22 07:04:09 LOG7[735:4]: FD 0 in non-blocking mode 2006.05.22 07:04:09 LOG7[735:4]: TCP_NODELAY option set on local socket 2006.05.22 07:04:09 LOG7[735:4]: FD 1 in non-blocking mode 2006.05.22 07:04:09 LOG7[735:4]: FD 2 in non-blocking mode 2006.05.22 07:04:09 LOG7[735:4]: Connection from 10.140.42.11:44360 permitted by libwrap 2006.05.22 07:04:09 LOG5[735:4]: rssvr connected from 10.140.42.11:44360 2006.05.22 07:04:09 LOG7[735:1]: Cleaning up the signal pipe 2006.05.22 07:04:09 LOG6[735:1]: Child process 938 finished with code 0 2006.05.22 07:04:09 LOG7[735:4]: SSL state (accept): before/accept initialization 2006.05.22 07:04:09 LOG3[735:4]: SSL_accept: 140760FC: error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown protocol 2006.05.22 07:04:09 LOG5[735:4]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2006.05.22 07:04:09 LOG7[735:4]: rssvr finished (0 left) Thanks, Sri Disclaimer: *********** The contents of this E-mail (including the contents of the enclosure(s) or attachment(s) if any) are privileged and confidential material of HCL Capital Market Services and should not be disclosed to, used by or copied in any manner by anyone other than the intended addressee(s). In case you are not the desired addressee, you should delete this message and/or re-direct it to the sender. The views expressed in this E-mail message (including the enclosure(s) or attachment(s) if any) are those of the individual sender, except where the sender expressly, and with authority, states them to be the views of HCL Capital Market Services. This e-mail message including attachment/(s), if any, is believed to be free of any virus. However, it is the responsibility of the recipient to ensure that it is virus free and HCL Capital Market Services is not responsible for any loss or damage arising in any way from its use.

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stunnel-4.15 segfaulting and looping under FreeBSD-CURRENT
by Michael Weiser 17 May '06

17 May '06

Hi, I've run into the problem mentioned in: > Scott Tuc Ellentuch at T-B-O-H ml at t-b-o-h.net > Fri Apr 21 23:45:11 CEST 2006 > Hi, > I just did a portupgrade in FreeBSD from 4.14 to 4.15, and now it > seems to be looping the command that I asked it, instead of just doing > it once. Has there been an option added I need to tell it to just do > once? > Thanks, Tuc I'm running stunnel in client mode. It execs uucico which receives and sends uucp jobs via stdin/stdout. The first call to uucico actually succeeds. It seems like stunnel is segfaulting and then re-exec-ing when it would normally quit. A core file is created in the current directory. But stunnel never quits and indefinitely continues to re-exec itself. Has there been any progress in solving this problem? -- Thanks, Michael

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FW: [stunnel-users] Re: Re:Need a help in installation (Craig)
by Craig 17 May '06

17 May '06

Oops, mailed it directly to Peng :-0, Sorry for that ;-) Re:Need a help in installation (Craig) >Thanks a lot! Craig. I use your method: > ./configure --prefix=/stunnel2 No Problem ;-) >It seems that installation is successful. It successfully generate a >directory ./stunnel2, in which there are six subdirectories: etc lib man >sbin share var That looks right >But when I run stunnel command in the teminal window. It does not take it as >a command. Is it supposed to run stunnel command after the installation or >not? Is there anything missing in the Mac machine before it can run stunnel? If you go to the directory " /stunnel2/sbin " without quotes, do you see 2 files named stunnel and stunnel3? If you see these files, you can execute the stunnel file with something like ./stunnel --help To display the options available to you for the daemon to run. Let me know if there is something else you require ;) Regards, Craig >Thanks >Peng > From: <stunnel-users-request(a)mirt.net> > Reply-To: <stunnel-users(a)mirt.net> > Date: Mon, 15 May 2006 12:00:06 +0200 (CEST) > To: <stunnel-users(a)mirt.net> > Subject: stunnel-users Digest, Vol 22, Issue 12 > > 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. RE: Need a help in installation (Craig) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 15 May 2006 08:15:36 +0200 > From: "Craig" <stunnel(a)rsw.co.za> > Subject: RE: [stunnel-users] Need a help in installation > To: <stunnel-users(a)mirt.net> > Message-ID: > <!&!AAAAAAAAAAAYAAAAAAAAADayToAwUd9AsHeKl2eRVAnCgAAAEAAAALWLI73av7VKpv9V31ec nQ > wBAAAAAA==(a)rsw.co.za> > > Content-Type: text/plain; charset="us-ascii" > > Don't know Mac, but can't u pass a prefix like in Linux to specify another > directory, for example your home directory? > > > > ./configure --prefix=/your/destination/directory > > > > Hope this helps > > > > Craig > > > > _____ > > From: stunnel-users-bounces(a)mirt.net [mailto:[email protected]] > On Behalf Of Peng He > Sent: 12 May 2006 11:45 PM > To: stunnel-users(a)mirt.net > Subject: [stunnel-users] Need a help in installation > > > > Hi, > > I want to install Stunnel 4.15 into MAC OS X machine. Somehow I do not have > the right to make any directory in /usr so I can not install Stunnel in > /usr/local. How do I install Stunnel into different directory? > > Thanks > Peng > >

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Re: Re:Need a help in installation (Craig)
by Peng He 16 May '06

16 May '06

Thanks a lot! Craig. I use your method: ./configure --prefix=/stunnel2 It seems that installation is successful. It successfully generate a directory ./stunnel2, in which there are six subdirectories: etc lib man sbin share var But when I run stunnel command in the teminal window. It does not take it as a command. Is it supposed to run stunnel command after the installation or not? Is there anything missing in the Mac machine before it can run stunnel? Thanks Peng > From: <stunnel-users-request(a)mirt.net> > Reply-To: <stunnel-users(a)mirt.net> > Date: Mon, 15 May 2006 12:00:06 +0200 (CEST) > To: <stunnel-users(a)mirt.net> > Subject: stunnel-users Digest, Vol 22, Issue 12 > > 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. RE: Need a help in installation (Craig) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 15 May 2006 08:15:36 +0200 > From: "Craig" <stunnel(a)rsw.co.za> > Subject: RE: [stunnel-users] Need a help in installation > To: <stunnel-users(a)mirt.net> > Message-ID: > <!&!AAAAAAAAAAAYAAAAAAAAADayToAwUd9AsHeKl2eRVAnCgAAAEAAAALWLI73av7VKpv9V31ecnQ > wBAAAAAA==(a)rsw.co.za> > > Content-Type: text/plain; charset="us-ascii" > > Don't know Mac, but can't u pass a prefix like in Linux to specify another > directory, for example your home directory? > > > > ./configure --prefix=/your/destination/directory > > > > Hope this helps > > > > Craig > > > > _____ > > From: stunnel-users-bounces(a)mirt.net [mailto:[email protected]] > On Behalf Of Peng He > Sent: 12 May 2006 11:45 PM > To: stunnel-users(a)mirt.net > Subject: [stunnel-users] Need a help in installation > > > > Hi, > > I want to install Stunnel 4.15 into MAC OS X machine. Somehow I do not have > the right to make any directory in /usr so I can not install Stunnel in > /usr/local. How do I install Stunnel into different directory? > > Thanks > Peng > >

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Need a help in installation
by Peng He 15 May '06

15 May '06

Hi, I want to install Stunnel 4.15 into MAC OS X machine. Somehow I do not have the right to make any directory in /usr so I can not install Stunnel in /usr/local. How do I install Stunnel into different directory? Thanks Peng

2 1

SSL2Proxy
by Steve Cohen 12 May '06

12 May '06

Hello all, I'm tyring to get around content based(notHostBased) int*rn*t cen$0ring. (don't want this page to be indexed with that keyword, so please don't wite it in your response). This is what I need to do: Set Browser on client machine to use <proxyX:port>, but I want content to be encrypted. The proxy is trusted(ownedByMe), everything else in between is not, after the proxy everything is trusted. So this would be the setup: SetupA: ClientBroswer <> STunnelOnRemoteServer <> LocalProxyServerOnSameServer(Squid) <> RestOfTheInternet And NOT this: SetupB: Browser<>LocalSTunnel<>RemoteSTunnel<>Proxy<>RestOfTheInternet Because I don't want any special kind of configuration on the client's local machine except for setting the proxy.(I am currently doing this via ssh tunneling) -I have squid running on remote server listening on 3128 and it works -I have stunnel running on remote server listening on 8686 and forwarding to localhost:3128, -I have Firefox set to use <myServer:8686> as proxy But when trying to use it, Firefox says connection reset.... Please tell me why this is happening and what I need to do. Feel free to make any suggestions you want, I won't be annoyed if you tell me something I already know. Thanks.

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certificate unknown - error:14094416
by Ludovic DUFLOT 12 May '06

12 May '06

Hi, I tried to use stunnel to connect in SSL to a LDAP server. But I can't and I've got this error message: certificate unknown The certificate is self-signed. If I use stunnel for establishing connexion with IMAPS server with a self-signed certificate too, all is right but not for LDAP connexion. I searched on the list's archives and with google but I can't find any solution... Help !!! Ludo ps: these are the stunnel.conf and the log: *************************** cert = stunnel.pem ; Some performance tunings socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ; Workaround for Eudora bug ;options = DONT_INSERT_EMPTY_FRAGMENTS ; Some debugging stuff useful for troubleshooting debug = 7 ;output = stunnel.log ; Use it for client mode client = yes ; Service-level configuration [ldaps] accept = 389 connect = 10.0.0.1:636 verify = 0 [imaps] accept = 143 connect = 10.0.0.2:993 *************************** 2006.05.03 07:52:50 LOG7[4436:5780]: ldaps connecting 10.0.0.1:636 2006.05.03 07:52:50 LOG7[4436:5780]: connect_wait: waiting 10 seconds 2006.05.03 07:52:50 LOG7[4436:5780]: connect_wait: connected 2006.05.03 07:52:50 LOG7[4436:5780]: Remote FD=244 initialized 2006.05.03 07:52:50 LOG7[4436:5780]: TCP_NODELAY option set on remote socket 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): before/connect initialization 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 write client hello A 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 read server hello A 2006.05.03 07:52:50 LOG5[4436:5780]: VERIFY IGNORE: depth=1, /C=FR/ST=Savoie/L=Chambery/O=Universite de Savoie/OU=DSI/CN=DSI CA/emailAddress=admin(a)univ-savoie.fr 2006.05.03 07:52:50 LOG5[4436:5780]: VERIFY IGNORE: depth=1, /C=FR/ST=Savoie/L=Chambery/O=Universite de Savoie/OU=DSI/CN=DSI CA/emailAddress=admin(a)univ-savoie.fr 2006.05.03 07:52:50 LOG5[4436:5780]: VERIFY IGNORE: depth=1, /C=FR/ST=Savoie/L=Chambery/O=Universite de Savoie/OU=DSI/CN=DSI CA/emailAddress=admin(a)univ-savoie.fr 2006.05.03 07:52:50 LOG5[4436:5780]: VERIFY IGNORE: depth=0, /C=FR/ST=Savoie/L=Chambery/O=Universite de Savoie/OU=DSI/CN=ldap-bourget.univ-savoie.fr 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 read server certificate A 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 read server certificate request A 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 read server done A 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 write client certificate A 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 write client key exchange A 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 write certificate verify A 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 write change cipher spec A 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 write finished A 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 flush data 2006.05.03 07:52:50 LOG7[4436:5780]: SSL alert (read): fatal: certificate unknown 2006.05.03 07:52:50 LOG3[4436:5780]: SSL_connect: 14094416: error:14094416:SSL routines:SSL3_READ_BYTES:sslv3 alert certificate unknown 2006.05.03 07:52:50 LOG5[4436:5780]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2006.05.03 07:52:50 LOG7[4436:5780]: ldaps finished (0 left)

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need HELP!! HELP!! with stunnel compile
by Nadav, Erez 10 May '06

10 May '06

Hi all, Hi all stunnel users. I want to debug and fix some TLS bugs with stunnel. I loaded stunnel 4.14 sources but i failed to compile it with visual studio 6, under windows 2000 environment. 1. Does anybody has the dsp file to be used under VC6++ for proper stunnel compilation ??? 2. Do I need any other libraries beside openssl to link ? I will appreciate any help Regards Erez __________________________________________________________________________________________ This electronic message contains information from Verint Systems, which may be privileged and confidential. The information is intended to be for the use of the individual(s)or entity named above. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited. If you have received this electronic message in error, please notify us by replying to this email (1).

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RE: [stunnel-users] stunnel use with TLS
by Nadav, Erez 10 May '06

10 May '06

I am using simple tcp/ip connection, which fail on the first hello message -----Original Message----- From: Scott Gifford [mailto:[email protected]] Sent: Wednesday, May 10, 2006 4:46 AM To: Nadav, Erez Cc: stunnel-users(a)mirt.net Subject: Re: [stunnel-users] stunnel use with TLS "Nadav, Erez" <Erez.Nadav(a)verint.com> writes: > > > Hi all, > > > > 1. Can I use stunnel as a client which connects in TLS protocol ? Assuming you mean over a channel that starts of plaintext and is later converted to encryption, the command to start TLS is usually specific to the application protocol. What protocol are you using? For example, SMTP, IMAP, ?... ---Scott. __________________________________________________________________________________________ This electronic message contains information from Verint Systems, which may be privileged and confidential. The information is intended to be for the use of the individual(s)or entity named above. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited. If you have received this electronic message in error, please notify us by replying to this email (1).

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problems installing stunnel 4.15
by David Arques Perolada 10 May '06

10 May '06

I get the following message after doing "make" /usr/lib/gcc/i586-suse-linux/4.0.2/../../../../i586-suse-linux/bin/ld: cannot find -lwrap collect2: ld returned 1 exit status make[1]: *** [stunnel] Error 1 make[1]: Leaving directory `/root/Stunnel/stunnel-4.15/src' make: *** [all-recursive] Error 1 All help will be welcome Thanks in advance David Arques i Perolada E-Mail : darques(a)uoc.edu

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stunnel use with TLS
by Nadav, Erez 10 May '06

10 May '06

Hi all, 1. Can I use stunnel as a client which connects in TLS protocol ? 2. I am using Stunnel 4.14 in client mode and trying to connect in TLS protocol to certain server. The connection failed with the following log file: 2006.05.03 10:42:52 LOG7[2388:1756]: connect_wait: waiting 10 seconds 2006.05.03 10:42:52 LOG7[2388:1756]: connect_wait: connected 2006.05.03 10:42:52 LOG7[2388:1756]: Remote FD=244 initialized 2006.05.03 10:42:52 LOG7[2388:1756]: TCP_NODELAY option set on remote socket 2006.05.03 10:42:52 LOG7[2388:1756]: SSL state (connect): before/connect initialization 2006.05.03 10:42:52 LOG7[2388:1756]: SSL state (connect): SSLv3 write client hello A 2006.05.03 10:42:52 LOG7[2388:1756]: SSL alert (write): fatal: handshake failure 2006.05.03 10:42:52 LOG3[2388:1756]: SSL_connect: 1408F10B: error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number I had tried to configure stunnel configuration file with options = NO_SSLv3, but nothing changed. Did I miss anything ? Can anybody help ? Thanks Nadav Erez R&D Verint Systems Ltd. Phone: +972-9-962-4753 Cell: +972-54-778-4753 Email: erez.nadav(a)verint.com <mailto:[email protected]@verint.com> Web: www.verint.com <http://www.verint.com/> __________________________________________________________________________________________ This electronic message contains information from Verint Systems, which may be privileged and confidential. The information is intended to be for the use of the individual(s)or entity named above. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited. If you have received this electronic message in error, please notify us by replying to this email (1).

2 1

Installing Stunnel on AIX5.3
by Shinoy 09 May '06

09 May '06

Hi, I want to install Stunnel on AIX 5.3 and configure it. I was trying to find some documentation and also know if it will work on AIX 5.3. Any help is greatly appreciated. --------------------------------- Yahoo! India Answers: Share what you know. Learn something new. Click here Send instant messages to your online friends - NOW

2 1

RE: [stunnel-users] Stunnel configuration
by Moehrke, John (GE Healthcare) 09 May '06

09 May '06

I would further like to ask: Is it true that the proper way to get to TLSv1 is to start with SSLv3? Is there a reference that someone can point me at? John _____ From: stunnel-users-bounces(a)mirt.net [mailto:[email protected]] On Behalf Of Nadav, Erez Sent: Monday, May 08, 2006 11:55 AM To: stunnel-users(a)mirt.net Subject: [stunnel-users] Stunnel configuration Hi all, How can I configure my stunnel client application (windows) with the following parameter : TLSv1only = yes Nadav Erez R&D Verint Systems Ltd. Phone: +972-9-962-4753 Cell: +972-54-778-4753 Email: erez.nadav(a)verint.com <mailto:[email protected]@verint.com> Web: www.verint.com <http://www.verint.com/> ________________________________________________________________________ __________________ This electronic message contains information from Verint Systems, which may be privileged and confidential. The information is intended to be for the use of the individual(s)or entity named above. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited. If you have received this electronic message in error, please notify us by replying to this email (1).

1 0

Trying to load stunnel sources
by Nadav, Erez 09 May '06

09 May '06

Hi all, I am a programmer and I want to compile the stunnel for windows application in order to try to fix some non working TLS issues. I having problem when accessing http://www.stunnel.org/download/source.html address. I have the following questions: 1. Where and How can I load all stunnel sources ? 2. How should I compile it on windows machine ? 3. How should I use the mentioned PGP key Thanks Erez __________________________________________________________________________________________ This electronic message contains information from Verint Systems, which may be privileged and confidential. The information is intended to be for the use of the individual(s)or entity named above. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited. If you have received this electronic message in error, please notify us by replying to this email (1).

1 0

Stunnel configuration
by Nadav, Erez 08 May '06

08 May '06

Hi all, How can I configure my stunnel client application (windows) with the following parameter : TLSv1only = yes Nadav Erez R&D Verint Systems Ltd. Phone: +972-9-962-4753 Cell: +972-54-778-4753 Email: erez.nadav(a)verint.com <mailto:[email protected]@verint.com> Web: www.verint.com <http://www.verint.com/> __________________________________________________________________________________________ This electronic message contains information from Verint Systems, which may be privileged and confidential. The information is intended to be for the use of the individual(s)or entity named above. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited. If you have received this electronic message in error, please notify us by replying to this email (1).

1 0

client certificate authentication
by Srilalitha Muralidhara(HCL Capital Market Services) 08 May '06

08 May '06

Hi, I am new to stunnel. My application listens on 6 socket ports. External applications either dump data on these socket ports or send requests on these socket ports to receive data. Thus, my application is a server and external applications are clients. We got to authenticate these external applications before accepting the requests/data. So I am planning to use client certificate authentication of stunnel. In this case, should the server have a certificate as well? Will the server be authenticated? Is it necessary for all the external applications to be using the same certificate? Thanks, Sri Disclaimer: *********** The contents of this E-mail (including the contents of the enclosure(s) or attachment(s) if any) are privileged and confidential material of HCL Capital Market Services and should not be disclosed to, used by or copied in any manner by anyone other than the intended addressee(s). In case you are not the desired addressee, you should delete this message and/or re-direct it to the sender. The views expressed in this E-mail message (including the enclosure(s) or attachment(s) if any) are those of the individual sender, except where the sender expressly, and with authority, states them to be the views of HCL Capital Market Services. This e-mail message including attachment/(s), if any, is believed to be free of any virus. However, it is the responsibility of the recipient to ensure that it is virus free and HCL Capital Market Services is not responsible for any loss or damage arising in any way from its use.

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Performance Problems.
by Don Werve 05 May '06

05 May '06

After a fair bit of poking, prodding, and googling, I have yet to find the solution to my problem. So, here goes: stunnel looks to be running slowly. Very slowly. We're starting to analyze it with gprof to see where it spends all of its time when we're trying to do content negotiation, and I've whipped up a quick-and-dirty Ruby script that grabs data from the server and then spits out the performace results; I'm sitting on my own T1, so our connectivity is pretty good. The results with this script are similar with 'delay=yes', 'session=600', and 'compression=zlib'. So, here's what happens when I nab data from our stunnel-ed server with said script (I can supply the script if anyone is interested): #File Size time thrpht time thrprt multiple ---------------------------------------------------------------------- index.html 7k http 0.1548 ( 46k/s) https 0.7449 ( 9k/s) * 4.8131 test1.jpg 1k http 0.0928 ( 12k/s) https 0.6379 ( 1k/s) * 6.8726 test2.jpg 10k http 0.1812 ( 59k/s) https 0.6743 ( 16k/s) * 3.7208 test3.jpg 19k http 0.2236 ( 85k/s) https 0.7677 ( 24k/s) * 3.4338 test4.jpg 53k http 0.5668 ( 94k/s) https 1.1543 ( 46k/s) * 2.0365 test5.jpg 97k http 0.7861 (123k/s) https 2.1974 ( 44k/s) * 2.7954 test6.jpg 214k http 1.4061 (152k/s) https 2.3735 ( 90k/s) * 1.6880 test7.jpg 140k http 0.9434 (149k/s) https 1.9331 ( 72k/s) * 2.0491 test8.jpg 470k http 2.8590 (164k/s) https 3.7696 (124k/s) * 1.3185 ('multiple' is the number of times 'slower' https is versus http). And, here's my stunnel config: *** cert = /etc/certs/combined.pem setuid = nobody setgid = nobody pid = /var/run/stunnel/stunnel.pid socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 debug = 0 output = /var/log/stunnel [https] local = 64.40.110.16 accept = 443 connect = 64.40.110.16:80 TIMEOUTclose = 0 *** So, any ideas why stunnel is working so slowly? I mean, I know there's the overhead of the SSL negotiation, and I've heard some things about a stunnel session cache, but nothing about enabling/using it (unless 'session = something bigger than zero' does so?). Any suggestions to improve performance, especially for large batches of small transfers? Thanks-in-advance! -- Don Werve <donw(a)iradeon.net> Chief Systems Administrator / Systems Architect

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Using stunnel to add https support to ONE virtual host
by Gonzalo Diethelm 05 May '06

05 May '06

Hello, I have Apache serving plain http pages for several domains running as virtual hosts on one machine (debian). I know SSL will not work with this setup, and I understand the reasons why (at least I think I do). Let's say the virtual hosts are www.server1.com www.server2.com www.server3.com I would like to use stunnel to add https capabilities to ONE of the virtual hosts (say, www.server3.com) In other words, I would like to configure stunnel in server mode with a certificate file, listening on www.server3.com:443, so that if I use a browser to visit https://www.server3.com/ then stunnel will accept the connection and forward all traffic to www.server3.com:80, letting Apache handle it; in particular, this would have to allow Apache to recognize which of the virtual hosts is being visited; I wouldn't like to have www.server1.com respond to my requests instead of www.server3.com. Is this possible? Any caveats, hints, recommendations? Thanks in advance, and best regards, -- Gonzalo Diethelm gonzalo.diethelm(a)aditiva.com

2 1

Using stunnel to add https support to ONE virtual host
by Gonzalo Diethelm 04 May '06

04 May '06

Hello, I have Apache serving plain http pages for several domains running as virtual hosts on one machine (debian). I know SSL will not work with this setup, and I understand the reasons why (at least I think I do). Let's say the virtual hosts are www.server1.com www.server2.com www.server3.com I would like to use stunnel to add https capabilities to ONE of the virtual hosts (say, www.server3.com) In other words, I would like to configure stunnel in server mode with a certificate file, listening on www.server3.com:443, so that if I use a browser to visit https://www.server3.com/ then stunnel will accept the connection and forward all traffic to www.server3.com:80, letting Apache handle it; in particular, this would have to allow Apache to recognize which of the virtual hosts is being visited; I wouldn't like to have www.server1.com respond to my requests instead of www.server3.com. Is this possible? Any caveats, hints, recommendations? Thanks in advance, and best regards, -- Gonzalo Diethelm gonzalo.diethelm(a)aditiva.com

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Re: stunnel 4.15 crashes with vnc server 4.1.1
by Harry Boeck 04 May '06

04 May '06

Hallo stunnel-users, @Michal Trojnara: Thanks for your help, Mike! The solution came overnight when i remembered my own message: > and the screen on the server side should remove the background image > and visual effects). Well: I disabled the desktop modifications in vnc and it runs. Something is incompatible in the stunnel GUI with the removal of global windows GUI behaviour (despite the fact, that i have not a single one of them in use - to the best of my knowledge), what has nothing to do with the dedication of stunnel. Maybe there's a simple GUI message not handled correctly? As this seems to be something common to all windows versions, could this possibly happen in windows xp, too? (I don't use one, so somone would have to investigate this.) It's another motivation to start compiling in cygnus. But unfortunally at this very moment i'm occupied with other tasks. May be some other guy has the fancy to look at this matter... Mit freundlichem Gruß Harry Boeck

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stunnel install issues with mknod command
by Trishul Shah 04 May '06

04 May '06

Hi, I was wondering if you could help me, I am trying to install stunnel on a machine running solaris 10, but the catch is that I am trying to install it within a zone in solaris 10, unfortunately during the installation process after the source is compiled I see the following error: Making install in src test -z "/usr/local/lib" || /bin/bash ../auto/mkinstalldirs "/usr/local/lib" /bin/bash ../libtool --mode=install ../auto/install-sh -c 'libstunnel.la' '/usr/local/lib/libstunnel.la' ../auto/install-sh -c .libs/libstunnel.so /usr/local/lib/libstunnel.so chmod +x /usr/local/lib/libstunnel.so ../auto/install-sh -c .libs/libstunnel.lai /usr/local/lib/libstunnel.la ---------------------------------------------------------------------- Libraries have been installed in: /usr/local/lib If you ever happen to want to link against installed libraries in a given directory, LIBDIR, you must either use libtool, and specify the full pathname of the library, or use the `-LLIBDIR' flag during linking and do at least one of the following: - add LIBDIR to the `LD_LIBRARY_PATH' environment variable during execution - use the `-RLIBDIR' linker flag See any operating system documentation about shared libraries for more information, such as the ld(1) and ld.so(8) manual pages. ---------------------------------------------------------------------- test -z "/usr/local/sbin" || /bin/bash ../auto/mkinstalldirs "/usr/local/sbin" /bin/bash ../libtool --mode=install ../auto/install-sh -c 'stunnel' '/usr/local/sbin/stunnel' ../auto/install-sh -c stunnel /usr/local/sbin/stunnel test -z "/usr/local/sbin" || /bin/bash ../auto/mkinstalldirs "/usr/local/sbin" ../auto/install-sh -c 'stunnel3' '/usr/local/sbin/stunnel3' Making install in doc test -z "/usr/local/share/doc/stunnel" || /bin/bash ../auto/mkinstalldirs "/usr/local/share/doc/stunnel" ../auto/install-sh -c -m 644 'stunnel.html' '/usr/local/share/doc/stunnel/stunnel.html' ../auto/install-sh -c -m 644 'stunnel.pl.html' '/usr/local/share/doc/stunnel/stunnel.pl.html' ../auto/install-sh -c -m 644 'stunnel.fr.html' '/usr/local/share/doc/stunnel/stunnel.fr.html' test -z "/usr/local/man/man8" || /bin/bash ../auto/mkinstalldirs "/usr/local/man/man8" ../auto/install-sh -c -m 644 './stunnel.8' '/usr/local/man/man8/stunnel.8' ../auto/install-sh -c -m 644 './stunnel.pl.8' '/usr/local/man/man8/stunnel.pl.8' ../auto/install-sh -c -m 644 './stunnel.fr.8' '/usr/local/man/man8/stunnel.fr.8' Making install in tools test -z "/usr/local/etc/stunnel" || /bin/bash ../auto/mkinstalldirs "/usr/local/etc/stunnel" ../auto/install-sh -c -m 644 'stunnel.conf-sample' '/usr/local/etc/stunnel/stunnel.conf-sample' if test ! -r /usr/local/etc/stunnel/stunnel.pem; then \ if test -r "/dev/urandom"; then \ dd if="/dev/urandom" of=stunnel.rnd bs=256 count=1; \ RND="-rand stunnel.rnd"; \ else \ RND=""; \ fi; \ /usr/local/bin/openssl req -new -x509 -days 365 -nodes $RND \ -config ./stunnel.cnf \ -out stunnel.pem -keyout stunnel.pem; \ test -eq 0 || /usr/local/bin/openssl gendh $RND 512 >> stunnel.pem; \ /usr/local/bin/openssl x509 -subject -dates -fingerprint -noout -in stunnel.pem; \ ../auto/install-sh -c -m 600 stunnel.pem /usr/local/etc/stunnel/stunnel.pem; \ rm stunnel.pem; \ fi mkdir -p /usr/local/var/stunnel chmod a=rwx,+t /usr/local/var/stunnel if uname | grep SunOS; then \ mkdir -p /usr/local/var/stunnel/dev; \ chmod u=rwx,go=rx /usr/local/var/stunnel/dev; \ mknod /usr/local/var/stunnel/dev/zero c 13 12; \ chmod a=rw /usr/local/var/stunnel/dev/zero; \ fi SunOS mknod: Not owner *** Error code 2 make: Fatal error: Command failed for target `install-data-local' Current working directory /export/home/playtech/stunnel-4.14/tools *** Error code 1 The following command caused the error: make install-exec-am install-data-am make: Fatal error: Command failed for target `install-am' Current working directory /export/home/playtech/stunnel-4.14/tools *** Error code 1 The following command caused the error: failcom='exit 1'; \ for f in x $MAKEFLAGS; do \ case $f in \ *=* | --[!k]*);; \ *k*) failcom='fail=yes';; \ esac; \ done; \ dot_seen=no; \ target=`echo install-recursive | sed s/-recursive//`; \ list='src doc tools'; for subdir in $list; do \ echo "Making $target in $subdir"; \ if test "$subdir" = "."; then \ dot_seen=yes; \ local_target="$target-am"; \ else \ local_target="$target"; \ fi; \ (cd $subdir && make $local_target) \ || eval $failcom; \ done; \ if test "$dot_seen" = "no"; then \ make "$target-am" || exit 1; \ fi; test -z "$fail" make: Fatal error: Command failed for target `install-recursive' After much digging around I have discovered that the mknod command cannot be used within a solaris 10 zone, I have gotten round this previously by installing stunnel from the global zone but that intertwines the parent zone with the child zone and ideally we would like to keep these as independent of each other as possible as we use these zones for 3rs party applications and hence we have a lot of other user traffic on these zones. Thanks in advance for your help. Kind Regards, Trishul Shah Blue Square Tel: 020 7288 7920 Mob: 07789 982 688 Fax: 020 7288 7955

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stunnel 4.15 crashes with vnc server 4.1.1
by Harry Boeck 04 May '06

04 May '06

Hallo stunnel users, i'm learning to use ssl and ssh tools to get secured access to my home server from work and other places. I already have a working ssh installation but stumbled over stunnel ba accident. I would like to use it, because i still have computers in use with win98 (both for myself and among my clients) and this little program is exactly all what i would need to use vnc over a secured connection. SSH to the contrary needs a little bit more setup (over a cygwin that serves the only purpose of aquiring such tools like SSH), needs its own crypto library compilation and so on. Now, there is the problem that stunnel 4.15 crashes at the moment, when the vnc server 4.1.1 tries to deliver its first screen to the client. Stunnel was downloaded from http://www.stunnel.org/download/binaries.html, vnc was downloaded from http://www.realvnc.com (already some times ago). Both where downloaded as binaries, for the typical help hints on forums for the question "i have a compile problem on windows" being "how dare you"... Both machines i'm using for testing use win98 as operating system. The crash happens both when testing a configuration on one machine with stunnel running both as server and as client, as well as when using it to connect two machines with stunnel running as server on the machine with vnc server and as client on the machine with vnc client. VNC runs correct for itself as well as via an ssh secured connection. Stunnel is startet with only the server versus the client configuration file as command line parameter. The configuration files are: http://harryboeck.dyndns.org/Sicherheit/stunnel-server.ini http://harryboeck.dyndns.org/Sicherheit/stunnel-client.ini Stunnel delivers correctly the data between vnc server and client (including connection establishment and authentication) until the point of first screen transfer (when the screen on the client side turns black and the screen on the server side should remove the background image and visual effects). The output of stunnel server and client is: http://harryboeck.dyndns.org/Sicherheit/stunnel-server.log http://harryboeck.dyndns.org/Sicherheit/stunnel-client.log The output of "stunnel -version" is: http://harryboeck.dyndns.org/Sicherheit/stunnel-version.txt I have no clue what '6. Output of "uname -a"' should mean, if that is somehow important for hints, please let me know. openssl version is: OpenSSL 0.9.8a 11 Oct 2005 I would appreciate any suggestions or hints on the interaction of vnc and stunnel. with best regards Harry Boeck

2 1

certificate unknown
by Ludovic DUFLOT 03 May '06

03 May '06

Hi, I tried to use stunnel to connect in SSL to a LDAP server. But I can't and I've got this error message: certificate unknown I use stunnel for establishing connexion with IMAPS server and all is right but not for LDAP connexion. The certificate is self-signate. I searched on the list's archives and with google but I can't find any solution... Help !!! Ludo ps: these are the stunnel.conf and the log: *************************** cert = stunnel.pem ; Some performance tunings socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ; Workaround for Eudora bug ;options = DONT_INSERT_EMPTY_FRAGMENTS ; Some debugging stuff useful for troubleshooting debug = 7 ;output = stunnel.log ; Use it for client mode client = yes ; Service-level configuration [ldaps] accept = 389 connect = 10.0.0.1:636 verify = 0 [imaps] accept = 143 connect = 10.0.0.2:993 *************************** 2006.05.03 07:52:40 LOG7[4436:2436]: RAND_status claims sufficient entropy for the PRNG 2006.05.03 07:52:40 LOG6[4436:2436]: PRNG seeded successfully 2006.05.03 07:52:40 LOG7[4436:2436]: Certificate: stunnel.pem 2006.05.03 07:52:40 LOG7[4436:2436]: Key file: stunnel.pem 2006.05.03 07:52:40 LOG7[4436:2436]: SSL context initialized for service ldaps 2006.05.03 07:52:40 LOG7[4436:2436]: Certificate: stunnel.pem 2006.05.03 07:52:40 LOG7[4436:2436]: Key file: stunnel.pem 2006.05.03 07:52:40 LOG7[4436:2436]: SSL context initialized for service imaps 2006.05.03 07:52:40 LOG7[4436:2436]: Certificate: stunnel.pem 2006.05.03 07:52:40 LOG7[4436:2436]: Key file: stunnel.pem 2006.05.03 07:52:40 LOG7[4436:2436]: SSL context initialized for service https 2006.05.03 07:52:40 LOG5[4436:2436]: stunnel 4.15 on x86-pc-mingw32-gnu with OpenSSL 0.9.7f 22 Mar 2005 2006.05.03 07:52:40 LOG5[4436:2436]: Threading:WIN32 SSL:ENGINE Sockets:SELECT,IPv6 2006.05.03 07:52:40 LOG5[4436:4612]: No limit detected for the number of clients 2006.05.03 07:52:40 LOG7[4436:4612]: FD 192 in non-blocking mode 2006.05.03 07:52:40 LOG7[4436:4612]: SO_REUSEADDR option set on accept socket 2006.05.03 07:52:40 LOG7[4436:4612]: ldaps bound to 0.0.0.0:389 2006.05.03 07:52:40 LOG7[4436:4612]: FD 196 in non-blocking mode 2006.05.03 07:52:40 LOG7[4436:4612]: SO_REUSEADDR option set on accept socket 2006.05.03 07:52:40 LOG7[4436:4612]: imaps bound to 0.0.0.0:143 2006.05.03 07:52:40 LOG7[4436:4612]: FD 212 in non-blocking mode 2006.05.03 07:52:40 LOG7[4436:4612]: SO_REUSEADDR option set on accept socket 2006.05.03 07:52:40 LOG7[4436:4612]: https bound to 0.0.0.0:443 2006.05.03 07:52:50 LOG7[4436:4612]: ldaps accepted FD=220 from 127.0.0.1:2893 2006.05.03 07:52:50 LOG7[4436:4612]: Creating a new thread 2006.05.03 07:52:50 LOG7[4436:4612]: New thread created 2006.05.03 07:52:50 LOG7[4436:5780]: ldaps started 2006.05.03 07:52:50 LOG7[4436:5780]: FD 220 in non-blocking mode 2006.05.03 07:52:50 LOG7[4436:5780]: TCP_NODELAY option set on local socket 2006.05.03 07:52:50 LOG5[4436:5780]: ldaps connected from 127.0.0.1:2893 2006.05.03 07:52:50 LOG7[4436:5780]: FD 244 in non-blocking mode 2006.05.03 07:52:50 LOG7[4436:5780]: ldaps connecting 10.0.0.1:636 2006.05.03 07:52:50 LOG7[4436:5780]: connect_wait: waiting 10 seconds 2006.05.03 07:52:50 LOG7[4436:5780]: connect_wait: connected 2006.05.03 07:52:50 LOG7[4436:5780]: Remote FD=244 initialized 2006.05.03 07:52:50 LOG7[4436:5780]: TCP_NODELAY option set on remote socket 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): before/connect initialization 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 write client hello A 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 read server hello A 2006.05.03 07:52:50 LOG5[4436:5780]: VERIFY IGNORE: depth=1, /C=FR/ST=Savoie/L=Chambery/O=Universite de Savoie/OU=DSI/CN=DSI CA/emailAddress=admin(a)univ-savoie.fr 2006.05.03 07:52:50 LOG5[4436:5780]: VERIFY IGNORE: depth=1, /C=FR/ST=Savoie/L=Chambery/O=Universite de Savoie/OU=DSI/CN=DSI CA/emailAddress=admin(a)univ-savoie.fr 2006.05.03 07:52:50 LOG5[4436:5780]: VERIFY IGNORE: depth=1, /C=FR/ST=Savoie/L=Chambery/O=Universite de Savoie/OU=DSI/CN=DSI CA/emailAddress=admin(a)univ-savoie.fr 2006.05.03 07:52:50 LOG5[4436:5780]: VERIFY IGNORE: depth=0, /C=FR/ST=Savoie/L=Chambery/O=Universite de Savoie/OU=DSI/CN=ldap-bourget.univ-savoie.fr 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 read server certificate A 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 read server certificate request A 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 read server done A 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 write client certificate A 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 write client key exchange A 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 write certificate verify A 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 write change cipher spec A 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 write finished A 2006.05.03 07:52:50 LOG7[4436:5780]: SSL state (connect): SSLv3 flush data 2006.05.03 07:52:50 LOG7[4436:5780]: SSL alert (read): fatal: certificate unknown 2006.05.03 07:52:50 LOG3[4436:5780]: SSL_connect: 14094416: error:14094416:SSL routines:SSL3_READ_BYTES:sslv3 alert certificate unknown 2006.05.03 07:52:50 LOG5[4436:5780]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2006.05.03 07:52:50 LOG7[4436:5780]: ldaps finished (0 left)

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Wrapping interclient connections outbound to many servers
by Matthew Case 02 May '06

02 May '06

Hello all, I have searched high and low for a solution to this problem, but I haven't found anything so I am coming here in hopes someone will be able to help me. I have to wrap the interclient protocol (>1024 to 3060) in some manner of encryption to appease one of my clients. I have already wrapped the ajp13 protocol between the apache server and the tomcat server, but now the tomcat server (which acts as an stunnel server in the ajp13 setup) must also act as a client and wrap all outbound and return traffic to 10 servers to and from port 3060. Making large modifications to the source code is not going to be feasible given my current time crunch (it must be implemented in two weeks). Has anyone run into anything like this and does anyone have any tips? Thanks in advance! - Matt

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Stunnel + Snort + MySQL
by Steven 02 May '06

02 May '06

I have a problem that I have been unsuccessful in solve thus far with Stunnel, Snort, and MySQL. Stunnel (client & server): 4.04 Snort: 2.4.4 on the client MySQL Ver 11.18 Distrib 3.23.58, for redhat-linux-gnu (i386) [not the latest and greatest by any means] I setup stunnel so that traffic destined for localhost 3306 (mysql) on the client goes to port 3307 on the server. Stunnel on the server is setup to take traffic from 3307 and send it to 3306 locally. This connection works fine. I can fire up Snort and have events properly log to my snort database on the server from the client. However, if stunnel is stopped/restarted on either the client or the server Snort is not able to keep writing to the database unless it is restarted. I just get this error: May 2 12:44:03 box snort[44126]: database: Problem inserting a new signature 'Test Snort Signature' May 2 12:44:03 box1 snort[44126]: database: mysql_error: MySQL server has gone away SQL=INSERT INTO event (sid,cid,signature,timestamp) VALUES ('4', '22', '0', '2006-05-02 16:44:03.322') May 2 12:44:03 box snort[44126]: database: mysql_error: MySQL server has gone away SQL=ROLLBACK Whenever I close stunnel it sends traffic to the other end. I can restart it and open up new connections just fine. However, Snort will not even try and connect to port 3306. Once stunnel has been stopped (or even restarted) it just immediately fails to even try and connect to the port. It seems there's some kind of signal sent that kills the connection (and all future connections?). I cannot figure oout why this happens. Any ideas? Thanks Steven

1 0

stunnel broken?
by Smith, Brian C1 (N-ASGARD AVIONICS) 28 Apr '06

28 Apr '06

does anyone know what this error message means and how to fix it? SSL_read (SSL_ERROR_SYSCALL): Operation would block (246) Brian Smith brian.c1.smith(a)lmco.com

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SSL_read (SSL_ERROR_SYSCALL): Operation would block (246)
by Smith, Brian C1 (N-ASGARD AVIONICS) 26 Apr '06

26 Apr '06

Hello all, I am having a problem using stunnel to connect web application in java to a UniData Database server. The setup is working fine, traffic passes over the tunnel from webserver to database without a problem except when a large query is sent over the tunnel. Normal queries get responses no problem. I am running HP-UX 11.00. Stunnel is running in daemon mode on both servers. Any ideas why this might happen? Is there a buffer limit or something for stunnel? Thanks in advance! Here's the stunnel.conf files for them: database side: ------------------------------------------------------ RNDfile=/opt/hpws/apache/stunnel/.stunnel.rnd pid = /opt/hpws/apache/logs/stunnel.pid debug = 7 output = /opt/hpws/apache/logs/stunnel.log client = no foreground = no [unidata] accept = 5555 connect = 127.0.0.1:31438 ------------------------------------------------------ webserver side: ------------------------------------------------------ RNDfile=/opt/hpws/apache/stunnel/.stunnel.rnd pid = /opt/hpws/apache/logs/stunnel.pid debug = 7 output = /opt/hpws/apache/logs/stunnel.log client = yes foreground = no [unidata] accept = 127.0.0.1:5555 connect = dbserver:5555 ------------------------------------------------------ Here is my stunnel -version output: ------------------------------------------------------ stunnel 4.04 on hppa2.0w-hp-hpux11.00 PTHREAD with OpenSSL 0.9.7g 11 Apr 2005 Global options cert = /opt/hpws/apache/stunnel/etc/stunnel/stunnel.pem ciphers = ALL:!ADH:+RC4:@STRENGTH debug = 5 key = /opt/hpws/apache/stunnel/etc/stunnel/stunnel.pem pid = /opt/hpws/apache/stunnel/var/run/stunnel.pid RNDbytes = 64 RNDoverwrite = yes session = 300 seconds verify = none Service-level options TIMEOUTbusy = 300 seconds TIMEOUTclose = 60 seconds TIMEOUTidle = 43200 seconds ------------------------------------------------------ Here is the error from the client: ------------------------------------------------------ 2006.04.26 10:47:11 LOG7[1862:1]: unidata accepted FD=0 from 127.0.0.1:49644 2006.04.26 10:47:11 LOG7[1862:1]: FD 0 in non-blocking mode 2006.04.26 10:47:11 LOG7[1862:8]: unidata started 2006.04.26 10:47:11 LOG5[1862:8]: unidata connected from 127.0.0.1:49644 2006.04.26 10:47:11 LOG7[1862:8]: FD 1 in non-blocking mode 2006.04.26 10:47:11 LOG7[1862:8]: unidata connecting 141.240.76.34:5555 2006.04.26 10:47:11 LOG7[1862:8]: remote connect #1: EINPROGRESS: retrying 2006.04.26 10:47:11 LOG7[1862:8]: waitforsocket: FD=1, DIR=write 2006.04.26 10:47:11 LOG7[1862:8]: waitforsocket: ok 2006.04.26 10:47:11 LOG7[1862:8]: Remote FD=1 initialized 2006.04.26 10:47:11 LOG7[1862:8]: SSL state (connect): before/connect initialization 2006.04.26 10:47:11 LOG7[1862:8]: SSL state (connect): SSLv3 write client hello A 2006.04.26 10:47:11 LOG7[1862:8]: SSL state (connect): SSLv3 read server hello A 2006.04.26 10:47:11 LOG7[1862:8]: SSL state (connect): SSLv3 read server certificate A 2006.04.26 10:47:11 LOG7[1862:8]: SSL state (connect): SSLv3 read server done A 2006.04.26 10:47:11 LOG7[1862:8]: SSL state (connect): SSLv3 write client key exchange A 2006.04.26 10:47:11 LOG7[1862:8]: SSL state (connect): SSLv3 write change cipher spec A 2006.04.26 10:47:11 LOG7[1862:8]: SSL state (connect): SSLv3 write finished A 2006.04.26 10:47:11 LOG7[1862:8]: SSL state (connect): SSLv3 flush data 2006.04.26 10:47:11 LOG7[1862:8]: SSL state (connect): SSLv3 read finished A 2006.04.26 10:47:11 LOG7[1862:8]: 3 items in the session cache 2006.04.26 10:47:11 LOG7[1862:8]: 7 client connects (SSL_connect()) 2006.04.26 10:47:11 LOG7[1862:8]: 7 client connects that finished 2006.04.26 10:47:11 LOG7[1862:8]: 0 client renegotiatations requested 2006.04.26 10:47:11 LOG7[1862:8]: 0 server connects (SSL_accept()) 2006.04.26 10:47:11 LOG7[1862:8]: 0 server connects that finished 2006.04.26 10:47:11 LOG7[1862:8]: 0 server renegotiatiations requested 2006.04.26 10:47:11 LOG7[1862:8]: 4 session cache hits 2006.04.26 10:47:11 LOG7[1862:8]: 0 session cache misses 2006.04.26 10:47:11 LOG7[1862:8]: 0 session cache timeouts 2006.04.26 10:47:11 LOG6[1862:8]: Negotiated ciphers: AES256-SHA SSLv3 Kx=RSA Au=RSA Enc=AES(256) Mac=SHA1 2006.04.26 10:47:12 LOG3[1862:8]: SSL_read (SSL_ERROR_SYSCALL): Operation would block (246) 2006.04.26 10:47:12 LOG5[1862:8]: Connection reset: 744 bytes sent to SSL, 539 bytes sent to socket 2006.04.26 10:47:12 LOG7[1862:8]: unidata finished (0 left) --------------------------------------------------------- Here is the error from the server: --------------------------------------------------------- 2006.04.26 10:48:24 LOG7[18850:1]: unidata accepted FD=0 from 141.240.76.29:49645 2006.04.26 10:48:24 LOG7[18850:1]: FD 0 in non-blocking mode 2006.04.26 10:48:24 LOG7[18850:6]: unidata started 2006.04.26 10:48:24 LOG5[18850:6]: unidata connected from 141.240.76.29:49645 2006.04.26 10:48:24 LOG7[18850:6]: SSL state (accept): before/accept initialization 2006.04.26 10:48:24 LOG7[18850:6]: SSL state (accept): SSLv3 read client hello A 2006.04.26 10:48:24 LOG7[18850:6]: SSL state (accept): SSLv3 write server hello A 2006.04.26 10:48:24 LOG7[18850:6]: SSL state (accept): SSLv3 write certificate A 2006.04.26 10:48:24 LOG7[18850:6]: SSL state (accept): SSLv3 write server done A 2006.04.26 10:48:24 LOG7[18850:6]: SSL state (accept): SSLv3 flush data 2006.04.26 10:48:24 LOG7[18850:6]: SSL state (accept): SSLv3 read client key exchange A 2006.04.26 10:48:24 LOG7[18850:6]: SSL state (accept): SSLv3 read finished A 2006.04.26 10:48:24 LOG7[18850:6]: SSL state (accept): SSLv3 write change cipher spec A 2006.04.26 10:48:24 LOG7[18850:6]: SSL state (accept): SSLv3 write finished A 2006.04.26 10:48:24 LOG7[18850:6]: SSL state (accept): SSLv3 flush data 2006.04.26 10:48:24 LOG7[18850:6]: 1 items in the session cache 2006.04.26 10:48:24 LOG7[18850:6]: 0 client connects (SSL_connect()) 2006.04.26 10:48:24 LOG7[18850:6]: 0 client connects that finished 2006.04.26 10:48:24 LOG7[18850:6]: 0 client renegotiatations requested 2006.04.26 10:48:24 LOG7[18850:6]: 5 server connects (SSL_accept()) 2006.04.26 10:48:24 LOG7[18850:6]: 5 server connects that finished 2006.04.26 10:48:24 LOG7[18850:6]: 0 server renegotiatiations requested 2006.04.26 10:48:24 LOG7[18850:6]: 3 session cache hits 2006.04.26 10:48:24 LOG7[18850:6]: 1 session cache misses 2006.04.26 10:48:24 LOG7[18850:6]: 1 session cache timeouts 2006.04.26 10:48:24 LOG6[18850:6]: Negotiated ciphers: AES256-SHA SSLv3 Kx=RSA Au=RSA Enc=AES(256) Mac=SHA1 2006.04.26 10:48:24 LOG7[18850:6]: FD 1 in non-blocking mode 2006.04.26 10:48:24 LOG7[18850:6]: unidata connecting 127.0.0.1:31438 2006.04.26 10:48:24 LOG7[18850:6]: Remote FD=1 initialized 2006.04.26 10:48:25 LOG3[18850:6]: SSL_read (SSL_ERROR_SYSCALL): Connection reset by peer (232) 2006.04.26 10:48:25 LOG5[18850:6]: Connection reset: 9477 bytes sent to SSL, 744 bytes sent to socket 2006.04.26 10:48:25 LOG7[18850:6]: unidata finished (0 left) ---------------------------------------------------------- Brian Smith brian.c1.smith(a)lmco.com

1 0

NSIS Installer Script
by Ryan O'Horo 25 Apr '06

25 Apr '06

I'm looking to distribute stunnel for Windows in such a manner that stunnel installs with a client certificate already configured. Is the original NSIS installer script available for use? Ryan O'Horo

2 1

New behaviour under 4.15?
by Scott Tuc Ellentuch＠T-B-O-H 24 Apr '06

24 Apr '06

Hi, I just did a portupgrade in FreeBSD from 4.14 to 4.15, and now it seems to be looping the command that I asked it, instead of just doing it once. Has there been an option added I need to tell it to just do once? Thanks, Tuc

3 2

too many file descriptors
by Sligar, Benjamin 22 Apr '06

22 Apr '06

I'm working on upgrading from stunnel 4.04 to the 4.15 to utilize the per port specification of a certificate. On my initial testing, I ran with only a few ports, specified the different certs, and, everything seems to work fine. I'm ran into a problem, though, when trying to use the same config file in regards to the number of configured ports. I have 104 inbound ports setup, and, when it hits the 69th configured port, I get the following message for this, and every port that follows: s_poll_add failed for FD=69: too many file descriptors I checked the code, and, this is what I found: #define MAX_FD 64 I didn't find a relation to any configurable options, so I made a change to this parameter in the code, recompiled, and, I was able to start up all of my listens without error. I just wanted to pass this along, and, if it does tie into a configurable parameter, my apologies for not finding it....if someone knows it, please pass that on. Thanks! **************************************** Benjamin Sligar Senior Development Support Specialist Transaction Network Services, Inc P: 703.453.8324 F: 703.453.8391 AIM: dagdromer88 **************************************** This e-mail message is for the sole use of the intended recipient(s) and may contain confidential and privileged information of Transaction Network Services. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message.

2 1

Stunnel with TPM engine !!!
by dinesh.kallath＠bt.com 19 Apr '06

19 Apr '06

Hello I am new to Stunnel and would like to know how to integrate the engine with Stunnel 4.15. I am trying to integrate a Trusted Platform Module (TPM) engine which is compatible with OpenSSL to use with Stunnel so that the private key for SSL connection can be retrieved and stored in the hardware. I was able to configure the Stunnel config file to use the engine and it is loading the engine fine. The problem I am facing now is the key which stunnel tries to load can be loaded only by the engine, I mean it has to be loaded into the TPM to use it and stunnel tried to load it in the normal way. Please find the debug output bellow, # ./stunnel stunnel-engine.conf 2006.04.19 13:39:22 LOG7[1261:3086812864]: Enabling support for engine 'tpm' DEBUG e_tpm_err.c:295 ERR_load_TPM_strings DEBUG e_tpm_err.c:298 TPM_lib_error_code is 136 2006.04.19 13:39:22 LOG7[1261:3086812864]: Initializing engine DEBUG e_tpm.c:336 tpm_engine_init LOG_DEBUG TSPI ../tcsd_api/clntside.c:58 Sending TSP packet to host localhost. LOG_DEBUG TSPI ../tcsd_api/clntside.c:74 Connecting to 127.0.0.1 LOG_DEBUG TSPI ../tcsd_api/tcstp.c:390 TCS_OpenContext_RPC_TP: Received TCS Context: 0xa0ef791d 2006.04.19 13:39:22 LOG7[1261:3086812864]: Engine initialized 2006.04.19 13:39:22 LOG7[1261:3086812864]: Engine closed 2006.04.19 13:39:22 LOG7[1261:3086812864]: Snagged 64 random bytes from /root/.rnd DEBUG e_tpm.c:1151 tpm_rand_bytes getting 1024 bytes LOG_DEBUG TSPI ../tcsd_api/tcstp.c:2488 TCSP_GetRandom_TP: TCS Context: 0xa0ef791d 2006.04.19 13:39:23 LOG7[1261:3086812864]: Wrote 1024 new random bytes to /root/.rnd DEBUG e_tpm.c:1171 tpm_rand_status 2006.04.19 13:39:23 LOG7[1261:3086812864]: RAND_status claims sufficient entropy for the PRNG 2006.04.19 13:39:23 LOG6[1261:3086812864]: PRNG seeded successfully DEBUG e_tpm.c:736 tpm_rsa_init 2006.04.19 13:39:23 LOG7[1261:3086812864]: Certificate: /root/dk/CVS/070406/applications/openssl_tpm_engine/TpmKey.crt 2006.04.19 13:39:23 LOG7[1261:3086812864]: Key file: /root/dk/CVS/070406/applications/openssl_tpm_engine/TpmKey.key 2006.04.19 13:39:23 LOG3[1261:3086812864]: error stack: 140B3009 : error:140B3009:SSL routines:SSL_CTX_use_RSAPrivateKey_file:PEM lib 2006.04.19 13:39:23 LOG3[1261:3086812864]: SSL_CTX_use_RSAPrivateKey_file: 906D06C: error:0906D06C:PEM routines:PEM_read_bio:no start line It is obvious from the debug that the Stunnel expect a private key file in PEM format but the whole issue is that the private key I have (created using TPM) is not in a PEM format, it is an encrypted file with root key used to encrypt stays inside the TPM hardware. I suppose we need to provide a key load function which loads the key into the TPM rather than using Stunnel. It will be a great help if someone could provide me with some pointers on how to solve this, or please let me know if I am missing out something. Also do ask me if you need any further clarifications. Many thanks, Dinesh Kallath, CISSP Research Professional, Security Research Centre BT Group Chief Technology Office ___________________________ Tel : +44 (0) 1473 643476 Fax : +44 (0) 1473 646886 Mob: +44 (0) 7952144553 Email: dinesh.kallath(a)bt.com Post : PP:2A, B28, Adastral Park, Ipswich IP5 3RE. British Telecommunications plc Registered office: 81 Newgate Street London EC1A 7AJ Registered in England no. 1800000 This electronic message contains information from British Telecommunications plc which may be privileged or confidential. The information is intended to be for the use of the individual(s) or entity named above. If you are not the intended recipient be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited. If you have received this electronic message in error, please notify us by telephone or email (to the numbers or address above) immediately. Activity and use of the British Telecommunications plc email system is monitored to secure its effective operation and for other lawful business purposes. Communications using this system will also be monitored and may be recorded to secure effective operation and for other lawful business purposes.

1 0

stunnel-4.15 doesn't work on Mac OS X 10.4.6
by SUENAGA Hiroki 18 Apr '06

18 Apr '06

Dear all, I found a problem that the stunnel-4.15 doesn't work on the Mac OS X 10.4.6. I think this is a BUG. My environment is: - OS: Mac OS X 10.4.6/Intel - Compiler: gcc 4.0.1 (from XCode 2.2) - OpenSSL: 0.9.7i (Mac OS X original version) - Usage: connect to the submission port. The detail of BUG is the following: In protocol.c::smtp_client() line 138, fdputline() called with argument line = "EHLO localhost." This is a string literal. 130 static void smtp_client(CLI *c) { ... 138 fdputline(c, c->remote_fd.fd, "EHLO localhost"); ... In network.c::fdputline() line 565, the literal is passed to 1st argument of safeconcat(). 556 void fdputline(CLI *c, int fd, char *line) { .... 565 safeconcat(line, crlf); ... In common.h line 311, safeconcat() is #define'ed as: 311 #define safeconcat(dst, src) \ 312 (dst[STRLEN-1]='\0', strncat((dst), (src), \ STRLEN-strlen(dst)-1)) This means the macro safeconcat() write to string literal. This is the BUG. In Mac OS X envoronment, string literal is NOT writable. So protection fault occurs at this code. On the other environment, this breaks somewhere in the heap or in the stack. This may also cause a crash. In stunnel-4.14, fdprintf() is used instead of fdputline(). fdprint() have own writable buffers on stack, and the string literal is copied to the stack. This works fine. The work around is using own writable buffers in fdputline() like fdprint() in stunnel-4.14. But it seems to be a performance tuning why fdputline() is used. So I don't know what is the correct way to fix this BUG.... I hope this BUG is fixed in the future release. If this was already reported, please ignore this mail. Thank you. Rgards, ---------- Internet Initiative Japan Inc. Research & Development Section, Product Development Division, SEIL Business Unit SUENAGA Hiroki <hsuenaga(a)iij.ad.jp>

2 2

STunnel and the MAC
by Bryan Bearden 15 Apr '06

15 Apr '06

I am working on setting up a mac server and having trouble getting the stunnel to work on the mac. I installed Darwin Ports and am running it under there. It appears to be running and my stunnel.conf file appears to be correct, but I cannot get it to use stunnel. Any ideas? I'm trying to connect to MySQL 4. thanks... Bryan

1 0

Choosing local 'source' IP? (again)
by Don Werve 14 Apr '06

14 Apr '06

This is a repost, but the response I got last time said, 'use the "local" option'...which does not appear to work. Ok, so here's the problem: I've got stunnel handling SSL for a web-based service that is otherwise too stupid to be able to talk https. On the same piece of hardware that runs this service (Virtuozzo if you must know), I've set up stunnel to listen to ETH0_IP:443 and wrapper them to ETH0_IP:80, which is where VZ listens. This works wonderfully. Unfortunately, I need to set up a redirection rule inside this service that bounces people back to the https:// page if they try to come in over http. Since said service isn't managing its own SSL, I have no solid way of determining which connections are wrappered by stunnel and which connections come in over the wire, save for by the IP address of the connection. Now, each piece of iron has two ethernet adapters, so I got the bright idea to try and get stunnel to 'appear' to be connecting from the IP address of the second adapter. So, I set 'local = ETH1_IP' in stunnel.conf, and...nada. Still shows as connecting from ETH0_IP. I've screwed with socket options, read the source code for Stunnel, and so on. Having read the source code and refreshed my knowledge of socket() and connect(), is it really even possible to do what I want if stunnel is running on the same system? Oh, a ptrace of stunnel also yields the following: socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 8 fcntl64(8, F_GETFL) = 0x2 (flags O_RDWR) fcntl64(8, F_SETFL, O_RDWR|O_NONBLOCK) = 0 bind(8, {sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("[ETH1_IP]")}, 16) = 0 connect(8, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("[ETH0_IP]")}, 16) = -1 EINPROGRESS (Operation now in progress) ...and the connection inside of $CRAP_SYSTEM shows the connection as coming from ETH0_IP. So, I'm kind of at my wits' end here. Any possible way to make this work? Thanks-in-advance! -- Don Werve <donw(a)iradeon.net> Chief Systems Administrator / Systems Architect

1 0

stunnel4 stealing my ports (listening on ports it shouldn't be)
by Eric Brown 12 Apr '06

12 Apr '06

I have two stunnel processes. One listing on 443 -> localhost:80. The other listening on 8000 -> localhost:7001. (See configs below.) However, when I stop the process listening on port 7001, both stunnel processes start listening on 7001 (and a few other ports). I'm completely confused as to why this would happen. This is what I see normally: mta4-tiny-support (epgate)[6]$ sudo lsof -p 25253 -p 25255 -a -i4 Password: COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME stunnel4 25253 root 6u IPv4 3439450 TCP *:8000 (LISTEN) stunnel4 25255 root 6u IPv4 3439456 TCP *:https (LISTEN) This is what I see when stunnel appears to go bizerk: (after stopping the process that was listening on ports *:7000, localhost:7001 & localhost:7005) COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME stunnel4 22788 root 5u IPv4 1269640 TCP 127.0.0.1:4341- >127.0.0.1:19996 (CLOSE_WAIT) stunnel4 22788 root 6u IPv4 1273504 TCP 127.0.0.1:7001 (LISTEN) stunnel4 22788 root 7u IPv4 1273476 TCP 127.0.0.1:4606- >127.0.0.1:19995 (ESTABLISHED) stunnel4 22788 root 9u IPv4 1273477 TCP 127.0.0.1:19995- >127.0.0.1:4606 (ESTABLISHED) stunnel4 22788 root 11u IPv4 1273507 TCP *:7000 (LISTEN) stunnel4 22788 root 17u IPv4 1273515 TCP 127.0.0.1:7005 (LISTEN) stunnel4 22788 root 19u IPv4 1274895 TCP 127.0.0.1:7001- >127.0.0.1:1793 (CLOSE_WAIT) stunnel4 22788 root 24u IPv4 1275089 TCP *:8000 (LISTEN) stunnel4 22790 root 5u IPv4 1269640 TCP 127.0.0.1:4341- >127.0.0.1:19996 (CLOSE_WAIT) stunnel4 22790 root 6u IPv4 1273504 TCP 127.0.0.1:7001 (LISTEN) stunnel4 22790 root 7u IPv4 1273476 TCP 127.0.0.1:4606- >127.0.0.1:19995 (ESTABLISHED) stunnel4 22790 root 9u IPv4 1273477 TCP 127.0.0.1:19995- >127.0.0.1:4606 (ESTABLISHED) stunnel4 22790 root 11u IPv4 1273507 TCP *:7000 (LISTEN) stunnel4 22790 root 17u IPv4 1273515 TCP 127.0.0.1:7005 (LISTEN) stunnel4 22790 root 19u IPv4 1274895 TCP 127.0.0.1:7001- >127.0.0.1:1793 (CLOSE_WAIT) stunnel4 22790 root 24u IPv4 1275094 TCP *:443 (LISTEN) Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State User Inode PID/Program name tcp 0 0 127.0.0.1:7008 0.0.0.0:* LISTEN 0 1281907 24848/python tcp 0 0 0.0.0.0:8000 0.0.0.0:* LISTEN 0 1275089 22788/stunnel4 tcp 0 0 0.0.0.0:1025 0.0.0.0:* LISTEN 0 1681 - tcp 0 0 0.0.0.0:963 0.0.0.0:* LISTEN 0 1556 1205/rpc.statd tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 0 1238 986/portmap tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 0 1281911 24848/python tcp 0 0 127.0.0.1:7025 0.0.0.0:* LISTEN 0 1281130 24605/master tcp 0 0 127.0.0.1:7026 0.0.0.0:* LISTEN 0 1281542 24677/python tcp 0 0 0.0.0.0:818 0.0.0.0:* LISTEN 0 1356 1061/ypbind tcp 0 0 127.0.0.1:7027 0.0.0.0:* LISTEN 0 1281731 24777/python tcp 0 0 127.0.0.1:7028 0.0.0.0:* LISTEN 0 1281910 24848/python tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 0 1486 1195/sshd tcp 0 0 0.0.0.0:7000 0.0.0.0:* LISTEN 0 1273507 22788/stunnel4 tcp 0 0 127.0.0.1:5432 0.0.0.0:* LISTEN 400 1269115 20559/postmaster tcp 0 0 172.16.80.213:25 0.0.0.0:* LISTEN 0 1281126 24605/master tcp 0 0 172.16.80.212:25 0.0.0.0:* LISTEN 0 1280994 24584/master tcp 0 0 127.0.0.1:7001 0.0.0.0:* LISTEN 0 1273504 22788/stunnel4 tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN 0 1275094 22790/stunnel4 tcp 0 0 127.0.0.1:955 0.0.0.0:* LISTEN 0 1518 1201/famd tcp 0 0 127.0.0.1:7005 0.0.0.0:* LISTEN 0 1273515 22788/stunnel4 tcp 0 0 127.0.0.1:7006 0.0.0.0:* LISTEN 0 1281540 24677/python tcp 0 0 127.0.0.1:7007 0.0.0.0:* LISTEN 0 1281724 24777/python I'm running stunnel 4.09 on Debian 3.1/Linux 2.6 Kernel. My configurations are: pid=/var/run/epgate_admin_stunnel4.pid cert=/epgate/etc/ssl/admin.stunnel [Admin] accept=8000 connect=7001 and: pid=/var/run/epgate_quarantine_stunnel4.pid cert=/epgate/etc/ssl/quar.stunnel [Quarantine] accept=443 connect=80

1 0

Deamon signal on close connection
by Ondra Medek 05 Apr '06

05 Apr '06

Hi, I'm using stunnel4 in daemon mode. It runs a bash script "service" for each connection. I want to stop the script, when the client closes the connection. Does the stunnel4 send any signal to child process when the connection is closed? My script receives no signal. Or is it a problem of bash? The only way how can the script find, that connection is broken is by reading the standart input, but I don't want to read any standart input. Thanks P.S. a snip of stunnel4 config: [aswconsole] accept = 1002 exec = /home/ondrejm/SeptimOS/ServerConsole/aswc-new/opt/asw/console/service

1 0

Having problems with an special configuration
by Michael Spiegle 04 Apr '06

04 Apr '06

Hi all, I've got a strange thing (at least I think so) that i'm trying to do with stunnel and it doesn't work. Here's the layout... Feel free to skip the next 3 paragraphs to get to the root of the problem: I'm using stunnel to provide SSL for a set of webservers behind a pair of LVS loadbalancers using keepalived. lets say I have a public IP of 10.0.0.1. I have an iptables rule which marks all 443 traffic to this IP with a fwmark, then keepalived dumps the traffic to the stunnel after seeing this fwmark. I have configured LVS to use direct-routing so that the stunnel server can see the original public IP which was requested (so it can serve up the right cert). Now, here is where things break. Internally, lets say stun is setup with an IP 192.168.0.10, and the LVS server has an interface on this VLAN with the IP 192.168.0.5. In my keepalived configuration for the correct fwmark, I dump the traffic to stun on 192.168.0.10. When I test this by creating a connection to the public IP address (10.0.0.1), LVS dumps the traffic to stunnel as planned and stunnel sees something like the following in TCPDUMP: Websurfer's_IP:123131 ----> 10.0.0.1:443 Stunnel refuses to do anything with the traffic. I assumed this was becuase the IP 10.0.0.1 wasn't configured anywhere on the stunnel box itself. I assigned this IP to the loopback interface as an alias, and it still doesn't work. I've straced/debug-logged stunnel and it doesn't do anything - almost like it doesn't think it should service the traffic. If I run netstat - plan, stunnel is listening to 0.0.0.0:443. So, why doesn't stunnel want to do anything with this traffic? uname -a: Linux ssl-server.domain.com 2.4.29-1.2smp #1 SMP Fri Mar 18 15:45:07 EST 2005 i686 unknown Running redhat 7.3. Glibc: glibc-2.2.5-44 glibc-common-2.2.5-44 openssl version: 0.9.6b configuration: cert = /nfs/ssl/pem/default chroot = /nfs certdir = /ssl/pem hashdir = yes pid = /run/stunnel.pid setuid = nobody setgid = nogroup output = /var/log/stunnel.log [https] accept = 443 connect = *:80 httpprotocol = yes TIMEOUTclose = 1 IP on loopback: bash-2.05a# ip addr list 1: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 brd 127.255.255.255 scope host lo inet 10.0.0.1/32 brd 10.0.0.255 scope global lo:0 ... ... ... Michael Spiegle mike(a)nauticaltech.com 310.686.4570

1 0

(stunnel-4.14) poor performance with openssl engine
by Zhuang Yuyao 03 Apr '06

03 Apr '06

Hi, I've just added openssl engine support for Cavium Nitrox lite PCI card. Here are the speed test output: [engine] stands for speed test output with engine [soft] stands for speed test output without engine (openssl internal software implementation used) ~ # openssl speed -evp [rc4|aes256|sha1] [-engine /root/libcavium.so] ...... The 'numbers' are in 1000s of bytes per second processed. type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes rc4[engine] 6339.20k 25376.00k 100966.40k 3757056.00k 919961.60k rc4[soft] 6056.66k 7017.34k 7228.37k 7339.13k 7356.14k aes-256-cbc[engine] 3178.40k 25465.60k 50636.80k 194201.60k 2088140.80k aes-256-cbc[soft] 2430.36k 2572.93k 2597.45k 2617.27k 2609.82k sha1[engine] 774.20k 3115.20k 16486.40k 27033.60k 285593.60k sha1[soft] 915.74k 2622.71k 5678.93k 7942.23k 9041.75k ~ # openssl speed rsa [-engine /root/libcavium.so] sign verify sign/s verify/s rsa[soft] 512 bits 0.013810s 0.001349s 72.4 741.2 rsa[soft] 1024 bits 0.079200s 0.004342s 12.6 230.3 sign verify sign/s verify/s rsa[engine] 512 bits 0.000037s 0.000022s 26725.8 45181.5 rsa[engine] 1024 bits 0.000046s 0.000043s 21866.7 23489.1 The speed test shows than using engine is much much faster than software implementations. but while testing with stunnel, the result is really poor. I am still using apache benchmark 2 as the test tool. #ab2 -c 50 -n 100 https://192.168.10.5/test_1k.html (a html file whose size is 1Kbytes) #ab2 -c 50 -n 100 https://192.168.10.5/test_4k.html (a html file whose size is 4Kbytes) #ab2 -c 50 -n 100 https://192.168.10.5/test_50k.html (a html file whose size is 50Kbytes) #ab2 -c 50 -n 100 https://192.168.10.5/test_100k.html (a html file whose size is 100Kbytes) #ab2 -c 50 -n 100 https://192.168.10.5/test_200k.html (a html file whose size is 200Kbytes) Here is the result: Algorithm engine 1K 4K 50K 100K 200K AES-256-CBC+SHA1 no 14.12 13.21 7.92 4.48 2.17 (Requests per second) AES-256-CBC+SHA1 yes 51.10 23.34 7.30 3.12 1.91 (Requests per second) the data says everything. while using engine with stunnel, we got some performance increasement for processing small files, but processing bigger files is even slower than software implementation (it's quite strange, because proccessing large data blocks with hardware engine is assumed to be much faster than proccessing small data blocks). I did the same test for several times, but the result is the same. something I can be sure: 1) while doing stunnel engine test, all of the algorithms are processed by the engine. I can see it by debugging information printed on console screen. 2) the client running ab2 is a AMD64 with 1G RAM, and the web server (apache) used in the test above is an XEON with 2G RAM. so the bottleneck should be neither ab2 nor apache. So here are my questions: Has anyone tried stunnel with a hardware acceleartor? How about the performance? BTW, attached to this mail is a little patch for stunnel-4.14 which allows the engine directive in stunnel.conf to be set to either a engine id or a shared object path refer to the engine (ie. engine = /root/libcavium.so) Best regards, Zhuang Yuyao --- stunnel-4.14/src/ssl.c Thu Oct 27 09:42:54 2005 UTC +++ stunnel/src/ssl.c Tue Mar 28 08:48:03 2006 UTC @@ -122,6 +143,21 @@ } #if (SSLEAY_VERSION_NUMBER >= 0x00907000L) && defined(HAVE_OSSL_ENGINE_H) +static ENGINE *load_dynamic_engine(const char *engine) +{ + ENGINE *e = ENGINE_by_id("dynamic"); + if (e) + { + if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", engine, 0) + || !ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0)) + { + ENGINE_free(e); + e = NULL; + } + } + return e; +} + static void init_engine(void) { ENGINE *e; @@ -133,9 +169,12 @@ } e=ENGINE_by_id(options.engine); if(!e) { + e = load_dynamic_engine(options.engine); + if (!e) { s_log(LOG_ERR, "Engine not found"); exit(1); } + } if(!ENGINE_init(e)) { s_log(LOG_ERR, "Engine can't be initialized"); ENGINE_free(e);

2 1

autostart stunnel at boot
by christof mestdag 03 Apr '06

03 Apr '06

hi is there another solution for booting stunnel without writting a custom rc5 script ? DO i have to make changes to make it works as a daemon? -> stunnel.conf client=yes output=/var/log/stunnel.log [ldaps] accept=localhost:389 connect=192.168.1.101:636

1 0

Re: [stunnel-users] Config for client proxy https (privoxy + stunnel)
by Xavier Cheney 02 Apr '06

02 Apr '06

Hi everybody, I found my mistake !! The process is not good. This is the correct process : browser (localhost:8118) <-> (localhost:8118) privoxy <-web-> server [and] (localhost:8888) stunnel (server:443) So with only privoxy like proxy in my Firefox config - when I ask http://server/page.html , data is modified by privoxy - when I ask https://server/page.html, data is transmitted by privoxy - when I ask http://localhost:888/page.html data is modified by privoxy and the real data transmitted is https://server/page.html , stunnel managing SSL between localhost and server. My new config : [https] accept = 8888 connect = server:443 In fact, it was the stunnel main function that I didn't understand. Sorry :) Thanks to exos, and hope it will help someone, Xavier Xavier Cheney <xav26000(a)yahoo.fr> a écrit : Hi, I wan to customize web page before viewing by my browser Firefox. With "privoxy" (www.privoxy.org) I can modify (proxy filter) HTTP web page, but not HTTPS pages. So, I want to use stunnel, to transfer HTTPS in HTTP between my proxy and server, like this : browser (8118) <-> (8118) privoxy (8888) <-> (8888) stunnel (server:443) <-web-> server This is my stunnel.conf : ---------------------------------------------------- ciphers = RC4-MD5:DES-CBC3-SHA verify = 0 debug = 7 client = yes [https] accept = 8888 connect = server.server.com:443 TIMEOUTclose = 0 ---------------------------------------------------- And my log : ---------------------------------------------------- 2006.03.31 11:40:02 LOG7[3396:2944]: RAND_status claims sufficient entropy for the PRNG 2006.03.31 11:40:02 LOG6[3396:2944]: PRNG seeded successfully 2006.03.31 11:40:02 LOG7[3396:2944]: SSL context initialized for service https 2006.03.31 11:40:02 LOG5[3396:2944]: stunnel 4.15 on x86-pc-mingw32-gnu with OpenSSL 0.9.7i 14 Oct 2005 2006.03.31 11:40:02 LOG5[3396:2944]: Threading:WIN32 SSL:ENGINE Sockets:SELECT,IPv6 2006.03.31 11:40:02 LOG5[3396:2952]: No limit detected for the number of clients 2006.03.31 11:40:02 LOG7[3396:2952]: FD 192 in non-blocking mode 2006.03.31 11:40:02 LOG7[3396:2952]: SO_REUSEADDR option set on accept socket 2006.03.31 11:40:02 LOG7[3396:2952]: https bound to 0.0.0.0:8888 2006.03.31 11:40:07 LOG7[3396:2952]: https accepted FD=200 from 127.0.0.1:2414 2006.03.31 11:40:07 LOG7[3396:2952]: Creating a new thread 2006.03.31 11:40:07 LOG7[3396:2952]: New thread created 2006.03.31 11:40:07 LOG7[3396:3320]: https started 2006.03.31 11:40:07 LOG7[3396:3320]: FD 200 in non-blocking mode 2006.03.31 11:40:07 LOG5[3396:3320]: https connected from 127.0.0.1:2414 2006.03.31 11:40:07 LOG7[3396:3320]: FD 232 in non-blocking mode 2006.03.31 11:40:07 LOG7[3396:3320]: https connecting 195.101.206.82:443 2006.03.31 11:40:07 LOG7[3396:3320]: connect_wait: waiting 10 seconds 2006.03.31 11:40:07 LOG7[3396:3320]: connect_wait: connected 2006.03.31 11:40:07 LOG7[3396:3320]: Remote FD=232 initialized 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): before/connect initialization 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 write client hello A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 read server hello A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 read server certificate A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 read server done A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 write client key exchange A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 write change cipher spec A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 write finished A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 flush data 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 read finished A 2006.03.31 11:40:07 LOG7[3396:3320]: 1 items in the session cache 2006.03.31 11:40:07 LOG7[3396:3320]: 1 client connects (SSL_connect()) 2006.03.31 11:40:07 LOG7[3396:3320]: 1 client connects that finished 2006.03.31 11:40:07 LOG7[3396:3320]: 0 client renegotiations requested 2006.03.31 11:40:07 LOG7[3396:3320]: 0 server connects (SSL_accept()) 2006.03.31 11:40:07 LOG7[3396:3320]: 0 server connects that finished 2006.03.31 11:40:07 LOG7[3396:3320]: 0 server renegotiations requested 2006.03.31 11:40:07 LOG7[3396:3320]: 0 session cache hits 2006.03.31 11:40:07 LOG7[3396:3320]: 0 session cache misses 2006.03.31 11:40:07 LOG7[3396:3320]: 0 session cache timeouts 2006.03.31 11:40:07 LOG6[3396:3320]: SSL connected: new session negotiated 2006.03.31 11:40:07 LOG6[3396:3320]: Negotiated ciphers: RC4-MD5 SSLv3 Kx=RSA Au=RSA Enc=RC4(128) Mac=MD5 2006.03.31 11:40:07 LOG7[3396:3320]: Socket closed on read 2006.03.31 11:40:07 LOG7[3396:3320]: SSL write shutdown 2006.03.31 11:40:07 LOG7[3396:3320]: SSL alert (write): warning: close notify 2006.03.31 11:40:07 LOG7[3396:3320]: SSL_shutdown retrying 2006.03.31 11:40:07 LOG7[3396:3320]: SSL doesn't need to read or write 2006.03.31 11:40:07 LOG6[3396:3320]: s_poll_wait timeout: connection close 2006.03.31 11:40:07 LOG5[3396:3320]: Connection closed: 211 bytes sent to SSL, 163 bytes sent to socket 2006.03.31 11:40:07 LOG7[3396:3320]: https finished (0 left) 2006.03.31 11:40:07 LOG7[3396:2952]: https accepted FD=220 from 127.0.0.1:2417 2006.03.31 11:40:07 LOG7[3396:2952]: Creating a new thread 2006.03.31 11:40:07 LOG7[3396:2952]: New thread created 2006.03.31 11:40:07 LOG7[3396:3944]: https started 2006.03.31 11:40:07 LOG7[3396:3944]: FD 220 in non-blocking mode 2006.03.31 11:40:07 LOG5[3396:3944]: https connected from 127.0.0.1:2417 2006.03.31 11:40:07 LOG7[3396:3944]: FD 232 in non-blocking mode 2006.03.31 11:40:07 LOG7[3396:3944]: https connecting 195.101.206.82:443 2006.03.31 11:40:07 LOG7[3396:3944]: connect_wait: waiting 10 seconds 2006.03.31 11:40:08 LOG7[3396:3944]: connect_wait: connected 2006.03.31 11:40:08 LOG7[3396:3944]: Remote FD=232 initialized 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): before/connect initialization 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 write client hello A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 read server hello A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 read finished A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 write change cipher spec A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 write finished A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 flush data 2006.03.31 11:40:08 LOG7[3396:3944]: 1 items in the session cache 2006.03.31 11:40:08 LOG7[3396:3944]: 2 client connects (SSL_connect()) 2006.03.31 11:40:08 LOG7[3396:3944]: 2 client connects that finished 2006.03.31 11:40:08 LOG7[3396:3944]: 0 client renegotiations requested 2006.03.31 11:40:08 LOG7[3396:3944]: 0 server connects (SSL_accept()) 2006.03.31 11:40:08 LOG7[3396:3944]: 0 server connects that finished 2006.03.31 11:40:08 LOG7[3396:3944]: 0 server renegotiations requested 2006.03.31 11:40:08 LOG7[3396:3944]: 1 session cache hits 2006.03.31 11:40:08 LOG7[3396:3944]: 0 session cache misses 2006.03.31 11:40:08 LOG7[3396:3944]: 0 session cache timeouts 2006.03.31 11:40:08 LOG6[3396:3944]: SSL connected: previous session reused 2006.03.31 11:40:08 LOG7[3396:3944]: Socket closed on read 2006.03.31 11:40:08 LOG7[3396:3944]: SSL write shutdown 2006.03.31 11:40:08 LOG7[3396:3944]: SSL alert (write): warning: close notify 2006.03.31 11:40:08 LOG7[3396:3944]: SSL_shutdown retrying 2006.03.31 11:40:08 LOG7[3396:3944]: SSL doesn't need to read or write 2006.03.31 11:40:08 LOG6[3396:3944]: s_poll_wait timeout: connection close 2006.03.31 11:40:08 LOG5[3396:3944]: Connection closed: 211 bytes sent to SSL, 163 bytes sent to socket 2006.03.31 11:40:08 LOG7[3396:3944]: https finished (0 left) ---------------------------------------------------- Note the first "Socket closed on read". I think the problem is there. The web reply is "Bad Request (Invalid URL)" Where did I do a mistake ? Thanks for answer, Xavier

1 0

Config for client proxy https (privoxy + stunnel)
by Xavier Cheney 31 Mar '06

31 Mar '06

Hi, I wan to customize web page before viewing by my browser Firefox. With "privoxy" (www.privoxy.org) I can modify (proxy filter) HTTP web page, but not HTTPS pages. So, I want to use stunnel, to transfer HTTPS in HTTP between my proxy and server, like this : browser (8118) <-> (8118) privoxy (8888) <-> (8888) stunnel (server:443) <-web-> server This is my stunnel.conf : ---------------------------------------------------- ciphers = RC4-MD5:DES-CBC3-SHA verify = 0 debug = 7 client = yes [https] accept = 8888 connect = server.server.com:443 TIMEOUTclose = 0 ---------------------------------------------------- And my log : ---------------------------------------------------- 2006.03.31 11:40:02 LOG7[3396:2944]: RAND_status claims sufficient entropy for the PRNG 2006.03.31 11:40:02 LOG6[3396:2944]: PRNG seeded successfully 2006.03.31 11:40:02 LOG7[3396:2944]: SSL context initialized for service https 2006.03.31 11:40:02 LOG5[3396:2944]: stunnel 4.15 on x86-pc-mingw32-gnu with OpenSSL 0.9.7i 14 Oct 2005 2006.03.31 11:40:02 LOG5[3396:2944]: Threading:WIN32 SSL:ENGINE Sockets:SELECT,IPv6 2006.03.31 11:40:02 LOG5[3396:2952]: No limit detected for the number of clients 2006.03.31 11:40:02 LOG7[3396:2952]: FD 192 in non-blocking mode 2006.03.31 11:40:02 LOG7[3396:2952]: SO_REUSEADDR option set on accept socket 2006.03.31 11:40:02 LOG7[3396:2952]: https bound to 0.0.0.0:8888 2006.03.31 11:40:07 LOG7[3396:2952]: https accepted FD=200 from 127.0.0.1:2414 2006.03.31 11:40:07 LOG7[3396:2952]: Creating a new thread 2006.03.31 11:40:07 LOG7[3396:2952]: New thread created 2006.03.31 11:40:07 LOG7[3396:3320]: https started 2006.03.31 11:40:07 LOG7[3396:3320]: FD 200 in non-blocking mode 2006.03.31 11:40:07 LOG5[3396:3320]: https connected from 127.0.0.1:2414 2006.03.31 11:40:07 LOG7[3396:3320]: FD 232 in non-blocking mode 2006.03.31 11:40:07 LOG7[3396:3320]: https connecting 195.101.206.82:443 2006.03.31 11:40:07 LOG7[3396:3320]: connect_wait: waiting 10 seconds 2006.03.31 11:40:07 LOG7[3396:3320]: connect_wait: connected 2006.03.31 11:40:07 LOG7[3396:3320]: Remote FD=232 initialized 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): before/connect initialization 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 write client hello A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 read server hello A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 read server certificate A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 read server done A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 write client key exchange A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 write change cipher spec A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 write finished A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 flush data 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 read finished A 2006.03.31 11:40:07 LOG7[3396:3320]: 1 items in the session cache 2006.03.31 11:40:07 LOG7[3396:3320]: 1 client connects (SSL_connect()) 2006.03.31 11:40:07 LOG7[3396:3320]: 1 client connects that finished 2006.03.31 11:40:07 LOG7[3396:3320]: 0 client renegotiations requested 2006.03.31 11:40:07 LOG7[3396:3320]: 0 server connects (SSL_accept()) 2006.03.31 11:40:07 LOG7[3396:3320]: 0 server connects that finished 2006.03.31 11:40:07 LOG7[3396:3320]: 0 server renegotiations requested 2006.03.31 11:40:07 LOG7[3396:3320]: 0 session cache hits 2006.03.31 11:40:07 LOG7[3396:3320]: 0 session cache misses 2006.03.31 11:40:07 LOG7[3396:3320]: 0 session cache timeouts 2006.03.31 11:40:07 LOG6[3396:3320]: SSL connected: new session negotiated 2006.03.31 11:40:07 LOG6[3396:3320]: Negotiated ciphers: RC4-MD5 SSLv3 Kx=RSA Au=RSA Enc=RC4(128) Mac=MD5 2006.03.31 11:40:07 LOG7[3396:3320]: Socket closed on read 2006.03.31 11:40:07 LOG7[3396:3320]: SSL write shutdown 2006.03.31 11:40:07 LOG7[3396:3320]: SSL alert (write): warning: close notify 2006.03.31 11:40:07 LOG7[3396:3320]: SSL_shutdown retrying 2006.03.31 11:40:07 LOG7[3396:3320]: SSL doesn't need to read or write 2006.03.31 11:40:07 LOG6[3396:3320]: s_poll_wait timeout: connection close 2006.03.31 11:40:07 LOG5[3396:3320]: Connection closed: 211 bytes sent to SSL, 163 bytes sent to socket 2006.03.31 11:40:07 LOG7[3396:3320]: https finished (0 left) 2006.03.31 11:40:07 LOG7[3396:2952]: https accepted FD=220 from 127.0.0.1:2417 2006.03.31 11:40:07 LOG7[3396:2952]: Creating a new thread 2006.03.31 11:40:07 LOG7[3396:2952]: New thread created 2006.03.31 11:40:07 LOG7[3396:3944]: https started 2006.03.31 11:40:07 LOG7[3396:3944]: FD 220 in non-blocking mode 2006.03.31 11:40:07 LOG5[3396:3944]: https connected from 127.0.0.1:2417 2006.03.31 11:40:07 LOG7[3396:3944]: FD 232 in non-blocking mode 2006.03.31 11:40:07 LOG7[3396:3944]: https connecting 195.101.206.82:443 2006.03.31 11:40:07 LOG7[3396:3944]: connect_wait: waiting 10 seconds 2006.03.31 11:40:08 LOG7[3396:3944]: connect_wait: connected 2006.03.31 11:40:08 LOG7[3396:3944]: Remote FD=232 initialized 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): before/connect initialization 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 write client hello A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 read server hello A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 read finished A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 write change cipher spec A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 write finished A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 flush data 2006.03.31 11:40:08 LOG7[3396:3944]: 1 items in the session cache 2006.03.31 11:40:08 LOG7[3396:3944]: 2 client connects (SSL_connect()) 2006.03.31 11:40:08 LOG7[3396:3944]: 2 client connects that finished 2006.03.31 11:40:08 LOG7[3396:3944]: 0 client renegotiations requested 2006.03.31 11:40:08 LOG7[3396:3944]: 0 server connects (SSL_accept()) 2006.03.31 11:40:08 LOG7[3396:3944]: 0 server connects that finished 2006.03.31 11:40:08 LOG7[3396:3944]: 0 server renegotiations requested 2006.03.31 11:40:08 LOG7[3396:3944]: 1 session cache hits 2006.03.31 11:40:08 LOG7[3396:3944]: 0 session cache misses 2006.03.31 11:40:08 LOG7[3396:3944]: 0 session cache timeouts 2006.03.31 11:40:08 LOG6[3396:3944]: SSL connected: previous session reused 2006.03.31 11:40:08 LOG7[3396:3944]: Socket closed on read 2006.03.31 11:40:08 LOG7[3396:3944]: SSL write shutdown 2006.03.31 11:40:08 LOG7[3396:3944]: SSL alert (write): warning: close notify 2006.03.31 11:40:08 LOG7[3396:3944]: SSL_shutdown retrying 2006.03.31 11:40:08 LOG7[3396:3944]: SSL doesn't need to read or write 2006.03.31 11:40:08 LOG6[3396:3944]: s_poll_wait timeout: connection close 2006.03.31 11:40:08 LOG5[3396:3944]: Connection closed: 211 bytes sent to SSL, 163 bytes sent to socket 2006.03.31 11:40:08 LOG7[3396:3944]: https finished (0 left) ---------------------------------------------------- Note the first "Socket closed on read". I think the problem is there. The web reply is "Bad Request (Invalid URL)" Where did I do a mistake ? Thanks for answer, Xavier --------------------------------- Nouveau : téléphonez moins cher avec Yahoo! Messenger ! Découvez les tarifs exceptionnels pour appeler la France et l'international.Téléchargez la version beta. --------------------------------- Nouveau : téléphonez moins cher avec Yahoo! Messenger ! Découvez les tarifs exceptionnels pour appeler la France et l'international.Téléchargez la version beta.

1 0

Stunnel client failed to connect to a server?
by Xia David You -X (xiyou - Varite Inc.＠Cisco) 31 Mar '06

31 Mar '06

Hi, I have a client which is build on stunnel which is failed to talk to a secured server while we can connect to the server with IE as client. We have both Server certificate and Client Certificate. From looking the log, it appears that the IE also got the same failure in the first step, but it did not give up and tried again with "2 1 0.0470 (0.0470) C>S SSLv2 compatible client hello" and successed. so what did we do wrong here? some extra openssl library need to be built in? thanks David Both Sever side SSL dump attached (IE client and Stunnel client).

1 0

unpublished Ceritificate
by Happy Manocha 28 Mar '06

28 Mar '06

Hi all, I am a newbie with Stunnel. Can anyone let me know how can I configure my client for a server , which does not have published certificate. Though I am able to connect but it gives a warning message "The server you are connected to is using a security certificate that could not be verifed...etc". Is there any way to avoid it? An early response will be appreciated. Regds Happy Manocha

2 1

stunnel runs in background but fails to do his job
by christof mestdag 19 Mar '06

19 Mar '06

hi, i'm having difficulties using the stunnel program. I've got some help to change the syntax from 3.X to 4.X but it doesn't work. I've got this config file -> client=yes output=/var/log/stunnel.log [ldaps] accept=localhost:389 connect=192.168.1.101:636 I run it with /usr/sbin/stunnel ./stunnel.conf -> check background: ps -ef | grep stunnel root 3270 ..... /usr/sbin/stunnel ./stunnel.conf Problem is when i close on server gate 389 i can't get any input. I expect the traffic going towards port 636 on server but it doenst. I can close port 636 and open just 389. He keeps sending everyting towards 389. I also tried to create a stunnel.conf by using make stunnel.conf in the tools directory ( in you tar.gz ) but nothing changes. /var/log/stunnel.log says -> date : stunnel 4.05 on i386-red hat .... with openssl 0.9.7a ->date : FD_SETSIZE=1024 file ulimt=1024 -> 500 clients allowed any input for my problem. It's kinda important. I'm really fed up with the tutorials which shows it works and everything always fails at my place :( greetz christof

1 0

converting old syntax to 4.x syntax
by christof mestdag 17 Mar '06

17 Mar '06

Hi, i've got a old syntax and i don't find what the new syntax might be. stunnel -c -d localhost:389 -r win2003server:636 ( I want to make a tunnel to the ssl port of the active directory server to allow password changes ) i've read a possibility which allows no use of certificates but it was in old syntax. any input to change that syntax? i thought it might be something like this. -> client=yes foreground=no accept = 389 connect = win2003server.FME.local what do i do with this. an upgrade manual speaks of an stunnel.conf file. But this one doesn't excists on my Red Hat Desktop computer. It says also that we have an /usr/local/etc/stunnel dir but i don't have that also. I only have an /etc/stunnel dir (which is totally empty ) and the /usr/sbin/stunnel tool ( version 4.05 ) thx in advance

2 2

Multiple Host Certificates
by Sligar, Benjamin 17 Mar '06

17 Mar '06

Is it possible to run one instance of stunnel and have it verify certain ports against different certificates? For instance: [listen1 5003] accept = 5003 connect = 10.61.0.132:7300 [listen2 5008] accept = 5008 connect = 10.61.0.132:7300 Would it be possible to have listen2 validate on a seperate certificate, or, will I need to run a second instance of stunnel on my box and have it point to the different certificate? Basically, I want to know if I can setup a different certificate on a per-port basis. I don't see any options in the definition of the listen port that I can specify a different CERT, only the default CERT option at the top of the config file. Version: stunnel-4.04 Options cert = /usr/local/conf/ssl.pem chroot = /usr/local/stunnel-4.04/var/run/stunnel/ pid = /stunnel.pid setuid = www setgid = webgroup options = NO_SSLv2 ciphers = DES-CBC3-SHA:IDEA-CBC-SHA:RC4-SHA:RC4-MD5:AES256-SHA:AES128-SHA uname -a Linux ssl 2.4.7-10 #1 Thu Sep 6 17:27:27 EDT 2001 i686 unknown gcc -v Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-98) openssl version OpenSSL 0.9.6b [engine] 9 Jul 2001 This e-mail message is for the sole use of the intended recipient(s) and may contain confidential and privileged information of Transaction Network Services. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message.

2 1

Help with config of stunnel.
by mike smith 16 Mar '06

16 Mar '06

I am trying to set up a tunnel for telnet. I am doing this just to learn how to get stunnel to work. I thought this would be easy way to learn how to use stunnel for other uses we have. My problem is I don't understand how to start it on the client side. I can telnet to the server without stunnel but I don't know how to start stunnel on the client side. The log file shows ssltelnet bound to 0.0.0.0:23 for the client and ssltelnet bound to 0.0.0.0:992 for the server If you have any ideas what I may need to do I would be greatfull. I'm sure that I'm missing a step configuring it. This is what my stunnel.conf files look like for the server cert = /usr/local/etc/stunnel/stunnel.pem chroot = /usr/local/var/run/stunnel/ pid = /stunnel.pid setuid = nobody setgid = nobody client = no debug = 7 output = /stunnel.log [ssltelnet] accept = 992 connect = 23 For the Client cert = /usr/local/etc/stunnel/stunnel.pem chroot = /usr/local/var/run/stunnel/ pid = /stunnel.pid setuid = nobody setgid = nobody client = yes debug = 7 output = /stunnel.log [ssltelnet] accept = 23 connect = 192.168.1.102:992 --------------------------------- Yahoo! Travel Find great deals to the top 10 hottest destinations! --------------------------------- Yahoo! Travel Find great deals to the top 10 hottest destinations!

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IE tries to verify client certificate?
by Don Werve 15 Mar '06

15 Mar '06

I've got stunnel providing SSL wrapper services for an otherwise SSL-stupid vendor-webserver-thingy that listens on port 80. I'm using a wildcard certificate purchased from $VENDOR, and it seems to work fine in Safari, Firefox, w3m, and basically everything SSL aware known to Man. Except, that is, Internet Explorer, where the user gets a popup window asking them to choose a certificate to verify their connection. This is really throwing me for a loop; I've tried setting 'verify = 0' and 'options = ALL' in the service definition under stunnel, no dice. Any ideas why IE thinks it needs to verify, but nothing else does? -- Don Werve <donw(a)iradeon.net> Chief Systems Administrator / Systems Architect

1 0

GeoTrust QuickSSL cert and stunnel
by Steve Shepherd 15 Mar '06

15 Mar '06

I've got a client that has a GeoTrust "QuickSSL" certificate (we normally deal with Thawte). I installed the cert/key, but it is not functioning (pulling up default certificate), so I figured I would need the CA. I gathered the CA, so in the file I have: Certificate Private Key Certificate GeoTrust CA Where is the default location to install other CA's and/or chained certs? Thanks!

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