stunnel-users

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3311 discussions

First message flows through second one does not
by George Cardenas 19 May '12

19 May '12

I been chasing my tail a few days now reading through every post and searching in the internet how to work around this issue. The first message will flow though but any other messages after that wont. The log doesn't tell me anything besides that the first attempt sent more bytes than the second attempt. Can someone see anything else I might have overlooked? 2012.05.18 12:07:14 LOG7[2236:3940]: Service [SMTP Outgoing] accepted (FD=360) from 127.0.0.1:1638 2012.05.18 12:07:14 LOG7[2236:3940]: Creating a new thread 2012.05.18 12:07:14 LOG7[2236:3940]: New thread created 2012.05.18 12:07:14 LOG7[2236:580]: Service [SMTP Outgoing] started 2012.05.18 12:07:14 LOG5[2236:580]: Service [SMTP Outgoing] accepted connection from 127.0.0.1:1638 2012.05.18 12:07:14 LOG6[2236:580]: connect_blocking: connecting 157.56.234.134:587 2012.05.18 12:07:14 LOG7[2236:580]: connect_blocking: s_poll_wait 157.56.234.134:587: waiting 10 seconds 2012.05.18 12:07:14 LOG5[2236:580]: connect_blocking: connected 157.56.234.134:587 2012.05.18 12:07:14 LOG5[2236:580]: Service [SMTP Outgoing] connected remote server from 10.0.0.65:1639 2012.05.18 12:07:14 LOG7[2236:580]: Remote socket (FD=372) initialized 2012.05.18 12:07:14 LOG6[2236:580]: Client-mode smtp protocol negotiations started 2012.05.18 12:07:14 LOG7[2236:580]: <- 220 pod51011.outlook.com Microsoft ESMTP MAIL Service ready at Fri, 18 May 2012 16:07:13 +0000 2012.05.18 12:07:14 LOG7[2236:580]: -> 220 pod51011.outlook.com Microsoft ESMTP MAIL Service ready at Fri, 18 May 2012 16:07:13 +0000 2012.05.18 12:07:14 LOG7[2236:580]: -> EHLO localhost 2012.05.18 12:07:14 LOG7[2236:580]: <- 250-pod51011.outlook.com Hello [65.23.214.191] 2012.05.18 12:07:14 LOG7[2236:580]: <- 250-SIZE 36700160 2012.05.18 12:07:14 LOG7[2236:580]: <- 250-PIPELINING 2012.05.18 12:07:14 LOG7[2236:580]: <- 250-DSN 2012.05.18 12:07:14 LOG7[2236:580]: <- 250-ENHANCEDSTATUSCODES 2012.05.18 12:07:14 LOG7[2236:580]: <- 250-STARTTLS 2012.05.18 12:07:14 LOG7[2236:580]: <- 250-AUTH 2012.05.18 12:07:14 LOG7[2236:580]: <- 250-8BITMIME 2012.05.18 12:07:14 LOG7[2236:580]: <- 250-BINARYMIME 2012.05.18 12:07:14 LOG7[2236:580]: <- 250 CHUNKING 2012.05.18 12:07:14 LOG7[2236:580]: -> STARTTLS 2012.05.18 12:07:14 LOG7[2236:580]: <- 220 2.0.0 SMTP server ready 2012.05.18 12:07:14 LOG6[2236:580]: Client-mode smtp protocol negotiations succeeded 2012.05.18 12:07:15 LOG6[2236:580]: SSL connected: new session negotiated 2012.05.18 12:07:15 LOG6[2236:580]: Negotiated TLSv1/SSLv3 ciphersuite: AES128-SHA (128-bit encryption) 2012.05.18 12:07:15 LOG6[2236:580]: Compression: null, expansion: null 2012.05.18 12:07:18 LOG7[2236:580]: SSL socket closed on SSL_read 2012.05.18 12:07:18 LOG7[2236:580]: Sent socket write shutdown 2012.05.18 12:07:18 LOG5[2236:580]: Connection closed: 1498 byte(s) sent to SSL, 498 byte(s) sent to socket 2012.05.18 12:07:18 LOG7[2236:580]: Remote socket (FD=372) closed 2012.05.18 12:07:18 LOG7[2236:580]: Local socket (FD=360) closed 2012.05.18 12:07:18 LOG7[2236:580]: Service [SMTP Outgoing] finished (0 left) 2012.05.18 12:07:18 LOG7[2236:580]: str_stats: 12 block(s), 298 data byte(s), 504 control byte(s) 2012.05.18 12:08:05 LOG7[2236:3940]: Service [SMTP Outgoing] accepted (FD=336) from 127.0.0.1:1644 2012.05.18 12:08:05 LOG7[2236:3940]: Creating a new thread 2012.05.18 12:08:05 LOG7[2236:3940]: New thread created 2012.05.18 12:08:05 LOG7[2236:4044]: Service [SMTP Outgoing] started 2012.05.18 12:08:05 LOG5[2236:4044]: Service [SMTP Outgoing] accepted connection from 127.0.0.1:1644 2012.05.18 12:08:05 LOG6[2236:4044]: connect_blocking: connecting 157.56.236.118:587 2012.05.18 12:08:05 LOG7[2236:4044]: connect_blocking: s_poll_wait 157.56.236.118:587: waiting 10 seconds 2012.05.18 12:08:05 LOG5[2236:4044]: connect_blocking: connected 157.56.236.118:587 2012.05.18 12:08:05 LOG5[2236:4044]: Service [SMTP Outgoing] connected remote server from 10.0.0.65:1645 2012.05.18 12:08:05 LOG7[2236:4044]: Remote socket (FD=376) initialized 2012.05.18 12:08:05 LOG6[2236:4044]: Client-mode smtp protocol negotiations started 2012.05.18 12:08:05 LOG7[2236:4044]: <- 220 pod51011.outlook.com Microsoft ESMTP MAIL Service ready at Fri, 18 May 2012 16:08:04 +0000 2012.05.18 12:08:05 LOG7[2236:4044]: -> 220 pod51011.outlook.com Microsoft ESMTP MAIL Service ready at Fri, 18 May 2012 16:08:04 +0000 2012.05.18 12:08:05 LOG7[2236:4044]: -> EHLO localhost 2012.05.18 12:08:05 LOG7[2236:4044]: <- 250-pod51011.outlook.com Hello [65.23.214.191] 2012.05.18 12:08:05 LOG7[2236:4044]: <- 250-SIZE 36700160 2012.05.18 12:08:05 LOG7[2236:4044]: <- 250-PIPELINING 2012.05.18 12:08:05 LOG7[2236:4044]: <- 250-DSN 2012.05.18 12:08:05 LOG7[2236:4044]: <- 250-ENHANCEDSTATUSCODES 2012.05.18 12:08:05 LOG7[2236:4044]: <- 250-STARTTLS 2012.05.18 12:08:05 LOG7[2236:4044]: <- 250-AUTH 2012.05.18 12:08:05 LOG7[2236:4044]: <- 250-8BITMIME 2012.05.18 12:08:05 LOG7[2236:4044]: <- 250-BINARYMIME 2012.05.18 12:08:05 LOG7[2236:4044]: <- 250 CHUNKING 2012.05.18 12:08:05 LOG7[2236:4044]: -> STARTTLS 2012.05.18 12:08:06 LOG7[2236:4044]: <- 220 2.0.0 SMTP server ready 2012.05.18 12:08:06 LOG6[2236:4044]: Client-mode smtp protocol negotiations succeeded 2012.05.18 12:08:06 LOG6[2236:4044]: SSL connected: new session negotiated 2012.05.18 12:08:06 LOG6[2236:4044]: Negotiated TLSv1/SSLv3 ciphersuite: AES128-SHA (128-bit encryption) 2012.05.18 12:08:06 LOG6[2236:4044]: Compression: null, expansion: null 2012.05.18 12:08:06 LOG7[2236:4044]: SSL socket closed on SSL_read 2012.05.18 12:08:06 LOG7[2236:4044]: Sent socket write shutdown 2012.05.18 12:08:06 LOG5[2236:4044]: Connection closed: 6 byte(s) sent to SSL, 48 byte(s) sent to socket 2012.05.18 12:08:06 LOG7[2236:4044]: Remote socket (FD=376) closed 2012.05.18 12:08:06 LOG7[2236:4044]: Local socket (FD=336) closed 2012.05.18 12:08:06 LOG7[2236:4044]: Service [SMTP Outgoing] finished (0 left) 2012.05.18 12:08:06 LOG7[2236:4044]: str_stats: 12 block(s), 298 data byte(s), 504 control byte(s)

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Problem With GMail
by Van Brown 09 May '12

09 May '12

I am trying to use stunnel to act as a forwarder to GMail. My config file looks like:client = yes socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 [gmail] accept = 25 connect = smtp.gmail.com:465 ;CAfile = peer-gmail.pem ;verify = 3 I saved the peer certificate and when I attempt to send mail, the log looks like this: 2012.05.08 16:01:35 LOG5[31036:19408]: Service [gmail] connected remote server from 192.168.1.9:42580 2012.05.08 16:01:35 LOG4[31036:19408]: CERT: Verification error: unable to get local issuer certificate 2012.05.08 16:01:35 LOG4[31036:19408]: Certificate check failed: depth=1, /C=US/O=Google Inc/CN=Google Internet Authority 2012.05.08 16:01:35 LOG3[31036:19408]: SSL_connect: 14090086: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed 2012.05.08 16:01:35 LOG5[31036:19408]: Connection reset: 0 byte(s) sent to SSL, 0 byte(s) sent to socket 2012.05.08 16:02:35 LOG5[31036:34312]: Service [gmail] accepted connection from 192.168.1.10:49303 2012.05.08 16:02:35 LOG5[31036:34312]: connect_blocking: connected 173.194.79.108:465 2012.05.08 16:02:35 LOG5[31036:34312]: Service [gmail] connected remote server from 192.168.1.9:42619 2012.05.08 16:02:36 LOG4[31036:34312]: CERT: Verification error: unable to get local issuer certificate 2012.05.08 16:02:36 LOG4[31036:34312]: Certificate check failed: depth=1, /C=US/O=Google Inc/CN=Google Internet Authority 2012.05.08 16:02:36 LOG3[31036:34312]: SSL_connect: 14090086: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed 2012.05.08 16:02:36 LOG5[31036:34312]: Connection reset: 0 byte(s) sent to SSL, 0 byte(s) sent to socket Please tell me what I'm doing wrong so I can fix it. Van Brown

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Compiling stunnel without a cert
by Donovan Sydow 08 May '12

08 May '12

I'm trying to automate the compilation of stunnel from source and was curious if there was a hidden flag to prevent stunnel from trying to generate a certificate after running make install. I do know I can make a file called stunnel.pem in the system configuration directory prior to running make install to prevent the cert from being made, but ideally wanted a way to have stunnel install without having a cert pregenerated. I didn't see any configure flags to prevent this behavior. Does any one know how to bypass this requirement and compile without generating a certificate or having one already exist? Alternately I would be interested in hearing any suggestions on how to quietly generate the initial certificate as well in an automated (i.e. no input, quiet, etc.) fashion. Cheers, Donovan

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Getting Stunnel to Work Under Windows 7 64-bit
by Thomas Eifert 03 May '12

03 May '12

For the benefit of the group, I thought I'd share some experiences I had when attempting to get Stunnel to run under Windows 7 SP1 64-bit. I initially installed Stunnel version 4.53 to the default location, which in Windows 7 64-bit is: C:\Program Files (x86)\stunnel\ I installed the service from the start menu option, then rebooted my machine. I have administrator rights, and User Account Control is disabled. My observations included the following: 1. The Stunnel status window displayed only configuration loads. No output from any active connection was ever displayed, despite the fact that Stunnel was passing traffic to/from SSL-enabled servers. 2. Stunnel would not write to the log file. The error message indicated that Stunnel was unable to open stunnel.log. Initially, I thought this might be a factor in the lack of status window connection output, so I commented the log statement out to eliminate it. I then reloaded the configuration. The issue of not seeing any connection info was unaffected. 3. The notification area icon would not appear on Stunnel service load. It would mysteriously appear, then disappear, at seemingly random times. 4. Once the service was installed, it was not possible to stop it or uninstall it from the provided start menu shortcuts. Whenever I attempted to do so, the Stunnel status window would appear. However, I was able to perform these actions successfully by opening a command prompt, then issuing the commands from there. In an effort to unravel these issues, I tried the following workarounds: 1. I re-installed stunnel to a non-system controlled directory. In my case, it was C:\Apps\stunnel\. 2. I attempted to run stunnel in compatibility mode, set for Windows XP SP3. 3. I tried installing 2 previous versions of Stunnel. All combinations produced exactly the same undesired result. Finally, I stopped and uninstalled the service. Instead of using that method, I created a shortcut to stunnel.exe, and placed it in the start menu's startup folder, then rebooted. Stunnel started at boot time, and all of the above issues were resolved. As such, it seems like Stunnel just doesn't like to be run as a service on a Windows 7 64-bit machine; at least not on the one I own. If you're encountering any stability issues with the Stunnel service in the Windows 7 64-bit environment, try my method. It works. I'd like to extend a special thank you to Carter Browne, who provided valuable input throughout the course of my testing. Regards, Thomas -- Attention: This message and all attachments are private and may contain information that is confidential and privileged. If you received this message in error, please notify the sender by reply email and delete the message immediately.

2 2

ssl3 handshake error
by Colin Chalmers 28 Apr '12

28 Apr '12

Hi all, I'm pretty new to stunnel but did get this config to work on a linux box - now I am trying the same/similiar config on a win7 box but keep getting the handshake error below. I am using the latest version of stunnel and have tried searching for an answer via google, making the proposed changes as described No matter what settings I use it always seems to use the sslv3 handshake which then goes wrong :-( I'd appreciate any help on this Colin My config is as follows: ; ************************************************************************** ; * Global options * ; ************************************************************************** ; Debugging stuff (may useful for troubleshooting) ; Some debugging stuff useful for troubleshooting debug = 7 output = c:\temp\stunnel.log ; Use it for client mode client = yes rndbytes = 256 rndfile = c:\temp\randseed.bin ; Some performance tunings socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ; Disable FIPS mode to allow non-approved protocols and algorithms fips = no ; ************************************************************************** ; * Service defaults may also be specified in individual service sections * ; ************************************************************************** ; Certificate/key is needed in server mode and optional in client mode cert = CT_20110324.pem ; Disable support for insecure SSLv2 protocol sslVersion = TLSv1 options = NO_SSLv2 options = NO_SSLv3 [CT] ; incoming connection from the client application accept = 444 ; outgoing connection connect = remote.server.com:443 TIMEOUTclose = 0 Error in log file 2012.04.11 18:33:54 LOG7[3684:3640]: Remote socket (FD=440) initialized 2012.04.11 18:33:54 LOG3[3684:3640]: SSL_connect: 14094410: error:14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert handshake failure 2012.04.11 18:33:54 LOG5[3684:3640]: Connection reset: 0 byte(s) sent to SSL, 0 byte(s) sent to socket 2012.04.11 18:33:54 LOG7[3684:3640]: Remote socket (FD=440) closed 2012.04.11 18:33:54 LOG7[3684:3640]: Local socket (FD=408) closed 2012.04.11 18:33:54 LOG7[3684:3640]: Service [CT] finished (0 left)

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Using Stunnel client but not Stunnel server with Apache mod_ssl
by Lilienberg, Daniel () 27 Apr '12

27 Apr '12

Hi, My supplier is using a somewhat strange setup looking like this: CLIENT: Stunnel running in client mode accepting incoming requests on port 8080. It will forward it to port to a server, port 443. SERVER: NOT running Stunnel at all, but running Apache with mod_ssl. It also acts as a proxy server, proxying all requests. Can this work, if so, how do I set it up ? [http://www.volvocars.net/support/IT/Services/IT_workplace/Email/outlook/sig…] Daniel Lilienberg Architect Connectivity Foundation Volvo Car Corporation Dept. 61630/PV2A Göteborg Sweden Telephone +46-31-3542317 dlilien2(a)volvocars.com<mailto:[email protected]> www.volvocars.com<http://www.volvocars.com/> Registered Office Göteborg, Sweden Registration No. 556074-3089

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Windows 7 64-Bit
by Thomas Eifert 23 Apr '12

23 Apr '12

Has anyone attempted to install and run Stunnel on Windows 7 64-bit? If so, which version did you use, and were any issues experienced? Regards. Thomas -- Attention: This message and all attachments are private and may contain information that is confidential and privileged. If you received this message in error, please notify the sender by reply email and delete the message immediately.

1 0

Possible error in stunnel 4.20
by Andreea Ion 20 Apr '12

20 Apr '12

Hi, I am running stunnel 4.2 on windows and I get the following log. I don't know if it's ok, if the problem is at the stunnel lovel or at the application level. SSL state (connect): before/connect initialization 2012.04.20 11:46:09 LOG7[5684:4492]: SSL state (connect): SSLv3 write client hello A 2012.04.20 11:46:09 LOG7[5684:4492]: SSL state (connect): SSLv3 read server hello A 2012.04.20 11:46:09 LOG7[5684:4492]: SSL state (connect): SSLv3 read finished A 2012.04.20 11:46:09 LOG7[5684:4492]: SSL state (connect): SSLv3 write change cipher spec A 2012.04.20 11:46:09 LOG7[5684:4492]: SSL state (connect): SSLv3 write finished A 2012.04.20 11:46:09 LOG7[5684:4492]: SSL state (connect): SSLv3 flush data 2012.04.20 11:46:09 LOG7[5684:4492]: 2 items in the session cache 2012.04.20 11:46:09 LOG7[5684:4492]: 5 client connects (SSL_connect()) 2012.04.20 11:46:09 LOG7[5684:4492]: 5 client connects that finished 2012.04.20 11:46:09 LOG7[5684:4492]: 0 client renegotiations requested 2012.04.20 11:46:09 LOG7[5684:4492]: 0 server connects (SSL_accept()) 2012.04.20 11:46:09 LOG7[5684:4492]: 0 server connects that finished 2012.04.20 11:46:09 LOG7[5684:4492]: 0 server renegotiations requested 2012.04.20 11:46:09 LOG7[5684:4492]: 3 session cache hits 2012.04.20 11:46:09 LOG7[5684:4492]: 0 session cache misses 2012.04.20 11:46:09 LOG7[5684:4492]: 0 session cache timeouts 2012.04.20 11:46:09 LOG6[5684:4492]: SSL connected: previous session reused 2012.04.20 11:46:54 LOG3[5684:4492]: readsocket: Connection reset by peer (WSAECONNRESET) (10054) 2012.04.20 11:46:54 LOG5[5684:4492]: Connection reset: 154 bytes sent to SSL, 0 bytes sent to socket 2012.04.20 11:46:54 LOG7[5684:4492]: Session finished (0 left) The last 3 lines are those that interests me most. Is this ok ? Regards, Andreea

1 0

(no subject)
by Guylhem 18 Apr '12

18 Apr '12

Hello With verify=3 and the certs loaded in the conf file with CAfile=startssl-chain.pem cert=mycert.pem, I get : CERT: Certificate not found in local repository Using the latest stunnel recompiled on a debian squeeze, the best I can get is: error queue: 140B0009: error:140B0009:SSL routines:SSL_CTX_use_PrivateKey_file:PEM lib SSL_CTX_use_PrivateKey_file: 906D06C: error:0906D06C:PEM routines:PEM_read_bio:no start line However, if I put these very same pem files in a directory as a CApath option instead (c_rehash applied) everything works fine. But The pem files are identical ! I've read http://stunnel.mirt.net/pipermail/stunnel-users/2010-November/002854.html but it seems a bit different The startssl-chain.pem was created with: wget http://www.startssl.com/certs/ca.pem wget http://www.startssl.com/certs/startssl.ca.pem cat sub.class1.server.ca.pem ca.pem > startssl-chain.pem I guess that may be the cause of the problem? What should I do to pass these pem files as stunnel.conf options instead of using the CApath? Guylhem

1 0

(no subject)
by Marco Tulio Jimenez Abrego 18 Apr '12

18 Apr '12

Buenos días El mensaje de error es: Error resolving 'smtp.gmail.com': Neither nodename nor servname known (EAI_NONAME). Gracias por su atención. -- Saludos. Att. Marco T. Jiménez ================ Tel. 6619-6782

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