stunnel-users September 2006

stunnel-users@stunnel.org

21 participants
26 discussions

windows load levels
by Alex Turner 05 Sep '06

05 Sep '06

Guys, Bit of a newbie question here - but very import to me at least. We are looking to secure a web server that does no currently support SSL. One reason for this is that we want to be able to run the server on multiple hosts and doing so means sharing the sessions etc :-( So - I am interested if anyone has tested the stuffing out of stunnel on windows. IE seeing how well it could handle several hundred sockets simultaneously. Not only from a resource point of view, but from a scaling (n, n**2 etc) point of view. Any input at all will be very welcome. Soon I will be starting some test of my own using JMeter to load test. If anyone is interested in the results I will be happy to post. Cheers AJ Alexander J Turner Ph.D. HYPERLINK "http://www.deployview.com"www.deployview.com HYPERLINK "http://www.nerds-central.blogspot.com"www.nerds-central.blogspot.com HYPERLINK "http://www.project-network.com"www.project-network.com -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.405 / Virus Database: 268.11.7/437 - Release Date: 04/09/2006

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Stunnel and CryptoApi
by Marco Aldegheri 05 Sep '06

05 Sep '06

Hello list! Someone knows if there is any way to integrate a Windows stunnel in client mode with the Windows Certificate Store? As OpenVPN does with the cryptoapicert parameter in my opinion it would be very useful because: 1. the private key would not just reside in a pem file but could be set not exportable. 2. the private key could be saved on a smartcard. I found a japaneese wstunnel project that seems to do it but I couldn't find any document about it in english and the gui is only in japaneese. Any hints? Thank you, Marco Aldegheri __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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Real address of client
by Gonzalo Diethelm 03 Sep '06

03 Sep '06

Hello, linux: Linux asus-gonzo 2.6.15-26-686 #1 SMP PREEMPT Thu Aug 3 03:13:28 UTC 2006 i686 GNU/Linux stunnel: stunnel 4.14 on i486-pc-linux-gnu PTHREAD+POLL+IPv6+LIBWRAP with OpenSSL 0.9.8a 11 Oct 2005 apache: Apache/2.0.55 I am using stunnel in Ubuntu to provide https serving to an http-only Apache installation. The stunnel config is: cert = /home/gonzo/src/bg/run/SSL/server.crt key = /home/gonzo/src/bg/run/SSL/server.crt chroot = /var/run/stunnel4/ setuid = stunnel4 setgid = stunnel4 pid = /stunnel4.pid socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 debug = 7 output = /var/log/stunnel4/stunnel.log client = no [https] accept = 443 connect = 80 TIMEOUTclose = 0 Everything works perfectly, except for one minor detail: on the server, my PHP scripts do not have access to the real IP address of the client, and they always see this value as 127.0.0.1. I am aware the manual says that, if you use -l or -L, there will be an additional REMOTE_HOST environment variable with the desired IP address, but I am not sure how to make this work from a setup like mine, where the http server process is already running. Any help or hints are greatly appreciated. Best regards, -- Gonzalo Diethelm gonzalo.diethelm(a)aditiva.com

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4.16 compilation fails for openssl without engine
by Hans Werner Strube 01 Sep '06

01 Sep '06

When openssl was compiled without engine support, compilation of src/ssl.c in stunnel-4.16 fails because of a misplaced #endif. Patch: --- src/ssl.c.ORI Thu Jun 29 23:12:03 2006 +++ src/ssl.c Fri Sep 1 11:30:25 2006 @@ -286,8 +286,6 @@ s_log(LOG_DEBUG, "Engine %d initialized", current_engine+1); } -#endif - ENGINE *get_engine(int i) { if(i<1 || i>current_engine) return NULL; @@ -294,4 +292,6 @@ return engines[i-1]; } +#endif + /* End of ssl.c */

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Duplicate 220 in protocol.c, smtp_server
by Hans Werner Strube 01 Sep '06

01 Sep '06

At least since stunnel 4.15 - but not yet in 4.09 (don't know about the intermediate versions) - there is a (cosmetic only?) bug in the "welcome" forwarding of the smtp_server in protocol.c (lines 177-187 in 4.16): fdgetline(c, c->remote_fd.fd, line); if(!isprefix(line, "220")) { s_log(LOG_ERR, "Unknown server welcome"); longjmp(c->err, 1); } fdprintf(c, c->local_wfd.fd, "220%s + stunnel", line); fdgetline(c, c->local_rfd.fd, line); if(!isprefix(line, "EHLO ")) { s_log(LOG_ERR, "Unknown client EHLO"); longjmp(c->err, 1); } Although the line read from remote_fd.fd already starts with "220", another 220 is prepended in forwarding to local_wfd.fd, line 182. This seems to haveno adverse effects, but this line should better be changed to: fdprintf(c, c->local_wfd.fd, "%s + stunnel", line);

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stunnel 4.16 released
by Michal Trojnara 01 Sep '06

01 Sep '06

A new version of stunnel has been released. Version 4.16, 2006.08.31, urgency: MEDIUM: * New features sponsored by Hewlett-Packard - A new global option to control engine: engineCtrl = <command>[:<parameter>] - A new service-level option to select engine to read private key: engineNum = <engine number> - OCSP support: ocsp = <URL> * New features - A new option to select version of SSL protocol: sslVersion = all|SSLv2|SSLv3|TLSv1 - Visual Studio vc.mak by David Gillingham <dgillingham(a)gmail.com>. - OS2 support by Paul Smedley (http://smedley.info) * Bugfixes - An ordinary user can install stunnel again. - Compilation problem with --enable-dh fixed. - Some minor compilation warnings fixed. - Service-level CRL cert store implemented. - GPF on protocol negotiations fixed. - Problem detecting addrinfo() on Tru64 fixed. - Default group is now detected by configure script. - Check for maximum number of defined services added. - OpenSSL_add_all_algorithms() added to SSL initialization. - configure script sections reordered to detect pthread library funcions. - RFC 2487 autodetection improved (thx to Hans Werner Strube). High resolution s_poll_wait() not currently supported by UCONTEXT threading. - More precise description of cert directory file names (thx to Muhammad Muquit). * Other changes - Maximum number of services increased from 64 to 256 when poll() is used. Homepage: http://stunnel.mirt.net/ Download: ftp://stunnel.mirt.net/stunnel/ sha1 hash for stunnel-4.16.tar.gz file: 6772e0c7f26c2596564ba66978597db8cd229a72 Best regards, Mike

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stunnel-users September 2006