- stunnel-users - stunnel.org

stunnel 5.21 released
by Michal Trojnara 27 Jul '15

27 Jul '15

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dear Users, I have released version 5.21 of stunnel. The ChangeLog entry: Version 5.21, 2015.07.27, urgency: MEDIUM * New features - Signal names are displayed instead of numbers. - First resolve IPv4 addresses on passive resolver requests. This speeds up stunnel startup on Win32 with a slow/defunct DNS service. - The "make check" target was modified to only build Win32 executables when stunnel is built from a git repository (thx to Peter Pentchev). - More elaborate descriptions were added to the warning about using "verify = 2" without "checkHost" or "checkIP". - Performance optimization was performed on the debug code. * Bugfixes - Fixed the FORK and UCONTEXT threading support. - Fixed "failover=prio" (broken since stunnel 5.15). - Added a retry when sleep(3) was interrupted by a signal in the cron thread scheduler. Home page: https://www.stunnel.org/ Download: https://www.stunnel.org/downloads.html SHA-256 hashes: 2aef568b1955f5e233f6a8e17ebce3d30755f1be44c813f5a48e621f785596e3 stunnel-5.21.tar.gz d5ec83140060af2b373a82abab0f7fd34c76a68c4f2990d46be460526b325de6 stunnel-5.21-installer.exe 2788d9e11b65dd4b111616bab1d7f09943916c924ba023cc3ad4260ac1f6f6d7 stunnel-5.21-android.zip Best regards, Mike -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJVtfz2AAoJEC78f/DUFuAUey4P/0tQ8yj3Yt7K5yLIorDGu9lI w95Vs2MtyOvFQyoX24dPKrDULKmxE28Dg8RJt51ZuT9q8mIfPdBA+jphyfjbpzl0 BeNQNbzEfN36dhOa2+dvr4+fcna/lnRpNMQg6sP/z4KHDLoI72lAg9vVwv5VX/4X JAMAaTxbrOXuXOmVPLSdHBeug7Y/0Q/+jPg9tSEslMtBaJvMd4CcHs4q8dCW9OQv AUWLtOiSsubfCvQ9rwGODObFJCA3BINrmh3a9EyhKJTov+8JKHlJY02r4zGJYMC4 PIVAVZWit9mEFefG6BuEWwOw4gohAInDXpsN2X9BNNDfUAVlUtp6OoxATcGv/H45 Uf25Dz2Bu8WtKIuuCIhN79PBfqSG8f2mSwNsec8OcYNOTzkAHKoFQQfKbJ1FUD5+ lTBhOFfo/B5haQA1EHNf0z8JxDulnsL7JsQQo4hF3ShSiCZpEAVvSkixpwCjm2kR WCtQ0w5eLccD/CnfjNrcOp3QKGLacZ+PCm9MH+cQDQvnmhAaelWK+OL67L9FKwBf hbJMA2RwwjN7efwEeUlnzVTBiJS9fsPTJghh8CzYuDWlnhEEnB9WX2FI1yVZVxM+ 8tGifpdOkRCFhpQSQkj0pWy/qf/cU8mL2uM31hBNcsRjCt6PfjQfKQ7jyMFvicmc rWJhvWvAfLAJXl+rgn5r =WvhQ -----END PGP SIGNATURE-----

1 0

Disable TLSv1
by Smith, Michael 23 Jul '15

23 Jul '15

I am running stunnel version 5.20. How do I disable TLSv1 and leave only TLSv1.2 and TSLv2 enabled? Michael Smith System Specialist II 281-283-2930

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Question about behavior with "failover = prio"
by Michael Gebis 22 Jul '15

22 Jul '15

Hello again. We recently noticed a behavior in stunnel that surprised us, and seems to be inconsistent with the man page description. We use "failover = prio" in our configuration file. To refresh everyone's memory, the man page describes this option here: failover = rr | prio Failover strategy for multiple "connect" targets. rr (round robin) - fair load distribution prio (priority) - use the order specified in config file default: rr Our config file contains a list of connect targets, like this: [...] connect = h1.example.com connect = h2.example.com connect = h3.example.com connect = h4.example.com [...] Based on the description, we expect the connection to try h1 first, and if h1 fails, failover through the remainder of the list, in-order. However, what we observe is that the connections start at a seemingly random place in the list. It does appear to proceed in-order...it's just the starting place that seems incorrect. For example, we might get a sequence that proceeds "h3->h4->h1->h2". Please let me know if I am misunderstanding the intended behavior of the 'prio' failover strategy. Here is a trial patch that hard-codes the starting place for the failover to the beginning of the list. I am not sure if this change has any unintended consequences for other configurations. But as a proof-of-concept, it does seem to fix the behavior to be consistent with our reading of the man page. This patch is against 5.20 but it appears that 5.21b2 acts the same way. Thanks! Michael diff -ru stunnel-5.20.orig/src/client.c stunnel-5.20-prio-fix/src/client.c --- stunnel-5.20.orig/src/client.c 2015-07-16 15:55:52.213064746 -0700 +++ stunnel-5.20-prio-fix/src/client.c 2015-07-17 16:13:12.129184507 -0700 @@ -1285,7 +1285,8 @@ *c->connect_addr.rr_ptr=(i+1)%c->connect_addr.num; s_log(LOG_INFO, "failover: round-robin"); } else { - s_log(LOG_INFO, "failover: priority"); + s_log(LOG_INFO, "failover: priority, starting at first entry"); + i=0; } return i; }

2 1

stunnel 5.20 issue using "--with-threads=ucontext"
by Michael Gebis 21 Jul '15

21 Jul '15

Hello. We recently upgraded from stunnel 5.10 to 5.20. We compile using "--with-threads=ucontext" and with this flag, compilation of 5.20 fails in two places. Both failures seem like minor oversights. Here is a proposed patch to fix the two failures. This patch is against 5.20, but I just checked the most recent 5.21b2 and it appears to require the same changes. Thanks! Michael diff -ru stunnel-5.20.orig/src/cron.c stunnel-5.20-ucontext-fix/src/cron.c --- stunnel-5.20.orig/src/cron.c 2015-07-16 15:55:52.214064748 -0700 +++ stunnel-5.20-ucontext-fix/src/cron.c 2015-07-16 16:15:56.593107354 -0700 @@ -47,7 +47,9 @@ #if defined(USE_PTHREAD) || defined(USE_WIN32) NOEXPORT void cron_worker(void); NOEXPORT void cron_dh_param(void); -#endif +#elif !defined(OPENSSL_NO_DH) +NOEXPORT void cron_dh_param(void); +#endif #if defined(USE_PTHREAD) diff -ru stunnel-5.20.orig/src/tls.c stunnel-5.20-ucontext-fix/src/tls.c --- stunnel-5.20.orig/src/tls.c 2015-07-16 15:55:52.180064660 -0700 +++ stunnel-5.20-ucontext-fix/src/tls.c 2015-07-16 15:56:30.520164252 -0700 @@ -110,7 +110,7 @@ if(ready_head) ready_head->tls=tls_data; else /* ucontext threads not initialized */ - global_tls=tls; + global_tls=tls_data; } TLS_DATA *tls_get() {

2 1

Unable to open log file
by Matt brancato 16 Jul '15

16 Jul '15

Hi all, Did a search but didn't see an answer so i figured i'd ask. I'm trying to runstunnel but am having some issues. I attempt to run stunnel but i run into an issue where it can't read the log file and then closes up. Any ideas? sudo stunnel stunnel.conf [ ] Clients allowed=500 [.] stunnel 5.19 on x86_64-unknown-linux-gnu platform [.] Compiled/running with OpenSSL 1.0.1 14 Mar 2012 [.] Threading:PTHREAD Sockets:POLL,IPv6 TLS:ENGINE,FIPS,OCSP,PSK,SNI [ ] errno: (*__errno_location ()) [.] Reading configuration from file stunnel.conf [.] UTF-8 byte order mark not detected [.] FIPS mode disabled [ ] Compression disabled [ ] Snagged 64 random bytes from /root/.rnd [ ] Wrote 1024 new random bytes to /root/.rnd [ ] PRNG seeded successfully [ ] Initializing service [<service>] [ ] Loading certificate from file: /etc/stunnel/server.pem [ ] Loading key from file: /etc/stunnel/server.pem [ ] Private key check succeeded [ ] DH initialization [ ] Could not load DH parameters from /etc/stunnel/server.pem [ ] DH parameters will be generated [ ] Cron started [ ] ECDH initialization [ ] ECDH initialized with curve prime256v1 [ ] SSL options: 0x03004004 (+0x03004000, -0x00000000) [.] Configuration successful [ ] Listening file descriptor created (FD=7) [ ] Service [<service>] (FD=7) bound to 127.0.0.1:9999 [ ] Executing cron jobs [.] Updating DH parameters [!] Cannot open log file: /home/tim/Desktop/stunnel.log [ ] Closing service [<service>] [ ] Service [<service>] closed (FD=7) [ ] Service [<service>] closed -- *CONFIDENTIALITY NOTICE* THE INFORMATION CONTAINED IN THIS COMMUNICATION IS INTENDED FOR THE NAMED RECEIVER ONLY. THE TRANSMISSION MAY CONTAIN PRIVILEGED AND CONFIDENTIAL MATERIAL. IF YOU ARE NOT THE NAMED RECIPIENT, PLEASE BE ADVISED THAT ANY USE, DISSEMINATION OR UNAUTHORIZED COPYING OF THE MATERIAL IS STRICTLY PROHIBITED. IF YOU HAVE RECEIVED THIS TRANSMISSION IN ERROR, PLEASE NOTIFY SUPPORT(a)TRUEEX.COM AND DESTROY THE RECEIVED COPY. THANK YOU.

1 0

stunnel 5.20 released
by Michal Trojnara 15 Jul '15

15 Jul '15

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dear Users, I have released version 5.20 of stunnel. The ChangeLog entry: Version 5.20, 2015.07.09, urgency: HIGH * Security bugfixes - OpenSSL DLLs updated to version 1.0.2d. https://www.openssl.org/news/secadv_20150709.txt * New features - poll(2) re-enabled on MacOS X 10.5 and later. - Xcode SDK is automatically used on MacOS X if no other locally installed OpenSSL directory is found. - The SSL library detection algorithm was made a bit smarter. - Warnings about insecure authentication were modified to include the name of the affected service section. - A warning was added to stunnel.init if no pid file was specified in the configuration file (thx to Peter Pentchev). - Optional debugging symbols are included in the Win32 installer. - Documentation updates (closes Debian bug #781669). * Bugfixes - Signal pipe reinitialization added to prevent turning the main accepting thread into a busy wait loop when an external condition breaks the signal pipe. This bug was found to surface on Win32, but other platforms may also be affected. - Fixed removing the disabled taskbar icon. - Generated temporary DH parameters are used for configuration reload instead of the static defaults. - LSB compatibility fixes added to the stunnel.init script (thx to Peter Pentchev). - Fixed the manual page headers (thx to Gleydson Soares). Home page: https://www.stunnel.org/ Download: https://www.stunnel.org/downloads.html SHA-256 hashes: 4a36a3729a7287d9d82c4b38bf72c4d3496346cb969b86129c5deac22b20292b stunnel-5.20.tar.gz 9d9d38241e972713cd0937e2cf66fdacf3adcb357fbea82d8e46648de4e26fa4 stunnel-5.20-installer.exe cfc1e94cb7c7bf14c832ac8799db4a3438ae7542aa04ec5e9c6695a1a3c3843d stunnel-5.20-android.zip Best regards, Mike -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJVnoXOAAoJEC78f/DUFuAUGvoP/1WQ2DliVyQQNGDYPkE2Rbqk BJ7lMEseYdPLjZVtkNPQIuH9PCc/qbWMrDFK1sJg+R7d0yyp+Ip+ucH4i5GCfW6o xIZQ00WVa/qV52AcEDGTZ+43EBPBIFNMkSeJlkwyj81ISZ+my0YpqPNSF77fZFdN IqGln9e+1n4gM+8SOgPnJs2XiR2EsbQzmwaZcTCOoKp56j6q2bLXlYC802B9KezJ ex2dmbGV2JEHmNarSUxWO45VnFdqhjhz4qHySm6KnLD2hoyS9Ex2XyynuuyIiIVx yU9M1zliZvgQSQ4RTpO3Ko2b9Qy2cYDECrFwk7i5rlwmiCw1zH5zWGh1rnAsLJHn 7SAxc5BfiB3VQl16CgoLM65no2mJ60f499ab3LA0uTNbt03PrPkc5cK8w+ec3YNU 6E59R4FXC6ae5T4iR7b9mBGifUHWtg53I1H7qbD6Pye/EH5QciSSPizEHeORYlPy fC3jOMEIUDlXjqI7k/XMGVPJ7SSKFkBNiqHKTKoM12QhiZXLLh4Ig3aQJgqX5IBQ VdML1/W9MdBlZNAHYaUBrkSls99aVbIsHJ5yAE0gsF5Lgi6hK6zDkXiKoVEozN5A N6MtfQHs/JS2nvlmCbtGWrK66EXKxW409f0JS3AJG6tjOquuSZYmR944EPzQD+zA WPivIUH2TVk63kULw/ui =Uw+D -----END PGP SIGNATURE-----

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keyfile is not encrypted
by Madhava Gaikwad (madgaikw) 15 Jul '15

15 Jul '15

Hello, I am asking too much, but keyfile with stunnel is required to be stored on disk (I am aware about file permission applied) and is in plain text. Is there any way we can encrypt the keyfile and then store, and then subsequently ask stunnel to obtain the decryption key somehow and then use it. For encryption/decryption of the key, stunnel (or some other program) can give network based ability(service over socket) to provide the key so key can be encrypted by the third party(who generates the config for stunnel). Stunnel config option will specify key is encrypted and therefore stunnel knows why and how to decrypt it. Of course you will ask me to implement my own custom algo for this, but I am checking if anybody has thought about it or in such case, how they have worked on it. I was told, there is also basic level of FIPS compliance requirement that requires key not to be stored on disk in plain text irrespective of file permission. Thank you. Madhava

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please remove me from the mailing list
by Kjell Osness 14 Jul '15

14 Jul '15

Thank you. Kjell Osness IT Technician American Home Entertainment cell (619) 520-9417 office (858) 430-1701 fax (858) 430-1702

1 0

help on options and sslversion
by Madhava Gaikwad (madgaikw) 13 Jul '15

13 Jul '15

Hi, I am using stunnel 5.03 version. I want to understand how the config option "sslVersion " and "options " works. The problem I am trying to solve is: I want to enable say only particular ssl connect methods, for example sslv3 and TLs1.2. I am not able to do it. For me if I do below setting: Options = all Option = NO_SSLv2 Option = NO_SSLv3 Option = NO_TLSv1 Option = NO_TLSv1.1 Option = NO_TLSv1.2 Still I see all methods are being enabled. I removed Option = all, but no effect. What is expected behavior? Also, The sslVersion seems enables either particular sslversion, or else all the versions. So wondering what can be the escape mechanism. Any help will be highly appreciated. Thank you. Madhava

2 2

"make check" tries to build Windows binary on Unix
by Dagobert Michelsen 13 Jul '15

13 Jul '15

Hi, I just tries to build stunnel 5.20 on Solaris 10 Sparc and noticed a strange behaviour during „make check“ which yields in a try to build Windows executables: > dam@unstable10s [unstable10s]:/home/dam/mgar/pkg/stunnel/trunk/work/solaris10-sparc/build-isa-sparcv8plus/stunnel-5.20 > gmake check > Making check in src > gmake[1]: Entering directory '/home/dam/mgar/pkg/stunnel/trunk/work/solaris10-sparc/build-isa-sparcv8plus/stunnel-5.20/src' > gmake stunnel.exe tstunnel.exe > gmake[2]: Entering directory '/home/dam/mgar/pkg/stunnel/trunk/work/solaris10-sparc/build-isa-sparcv8plus/stunnel-5.20/src' > i686-w64-mingw32-gcc -c -I/usr/src/openssl-1.0.2d-i686/include -mthreads -fstack-protector -O2 -Wall -Wextra -Wpedantic -Wformat=2 -Wconversion -Wno-long-long -D_FORTIFY_SOURCE=2 -DUNICODE -D_UNICODE -o tls.obj tls.c > /bin/bash: i686-w64-mingw32-gcc: command not found > Makefile:1206: recipe for target 'tls.obj' failed > gmake[2]: *** [tls.obj] Error 127 > gmake[2]: Leaving directory '/home/dam/mgar/pkg/stunnel/trunk/work/solaris10-sparc/build-isa-sparcv8plus/stunnel-5.20/src' > Makefile:1054: recipe for target 'check-am' failed I think this comes from these lines in src/Makefile.am: > # Just check if the programs can be built, don't perform any actual tests > check_PROGRAMS = stunnel.exe tstunnel.exe Essentially the „check“ phase could just not be called during build, but it would be cleaner to not bail out on Unix. Best regards — Dago -- "You don't become great by trying to be great, you become great by wanting to do something, and then doing it so hard that you become great in the process." - xkcd #896

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Re: [stunnel-users] problem with buffering data on stunnel
by Michal Trojnara 10 Jul '15

10 Jul '15

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 10.07.2015 20:17, wujot/Adalbert wrote: > But unencrypted session on path between Stunnel server and hi-speed > end server (both in LAN) is using TcpWindowSize on level 64KB - > 131KB Did you consider also tuning SO_SNDBUF of the sending application? > (in Windows 2008 or newer it is calculated automatically). So I > steel have at least 64KB buffer in stunnel. IMHO Windows is probably not the best server platform... > Is there any possibility to force stunnel to use on faster part of > connection (LAN side) the value of TcpWindowSize similar to > calculated on slower part (on WAN side)? I don't think such tricks are possible with BSD sockets. BTW: You can also change BUFFSIZE in common.h and rebuild stunnel. Best regards, Mike -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBAgAGBQJVoDm6AAoJEC78f/DUFuAURJQQAM1ix6ZkSqOCa9iLiBDIFvrS DajgeGDGeSE75WkyI+IQrPYjWJGNielOeXhCPjYdQh+5o/bddYPaRlQRsu0HlY6F Nncj1kP8Xy0WNO4uxz1YWpnnJtE/Ph9VUVLqS/63tJgkrhmvXF1HODeu677JLzEb wjOn0kv6SmPnzkFMpjbBmkRPt5GeSRc43POGoHcuqFKijeaTDGoqhBLo+tGLhtNV ezYN+QFvyyzMVPe8tscWa+vyXYdbMzgLBXXCHFMbFmlpu6QKHKb0823Q7g7OgMCb DYkVbw0a0ys6hdreBHejvAbgfG8fTKOtYfdOa7lnjCuivGpVKLa018yTk/1qjUbs dmr08MFPGkkMSfV/sQ+PMgZ0Dxaoczt1yXanzURNDXC4eiUlgEXfs4S5J2NYxTOe g4ZG7ZXQIHrux1AcQD9TQF+G9h7YxXeRMt0K29qA54dH+x+Xie920OJMXohMAZJ0 ddkblmt7SHO2XiEV6C2ie1VvB/roZ+aeqKQME4T8oZliy/kaDgXgs/eFLT2Kxw9B WwlWt4r4pLHFkJfExJF/nMWe0qRt/tlVoqyvOFE1hnTxOGr5pGLnY0XOoHX13kr/ ow1TC0N0UPWV++Uydm2oJwXA+o7a/TRs8O+PEhhHTqLDi4O/apC7kL9fM6DjESGr Zj+br1nUiaF+LscAiC/D =kA2M -----END PGP SIGNATURE-----

1 0

Cannot open log file
by Matt brancato 10 Jul '15

10 Jul '15

Hi all, Did a search but didn't see an answer so i figured i'd ask. I'm trying to run stunnel but am having some issues. I attempt to run stunnel but i run into an issue where it can't read the log file and then closes up. Any ideas? sudo stunnel stunnel.conf [ ] Clients allowed=500 [.] stunnel 5.19 on x86_64-unknown-linux-gnu platform [.] Compiled/running with OpenSSL 1.0.1 14 Mar 2012 [.] Threading:PTHREAD Sockets:POLL,IPv6 TLS:ENGINE,FIPS,OCSP,PSK,SNI [ ] errno: (*__errno_location ()) [.] Reading configuration from file stunnel.conf [.] UTF-8 byte order mark not detected [.] FIPS mode disabled [ ] Compression disabled [ ] Snagged 64 random bytes from /root/.rnd [ ] Wrote 1024 new random bytes to /root/.rnd [ ] PRNG seeded successfully [ ] Initializing service [<service>] [ ] Loading certificate from file: /etc/stunnel/server.pem [ ] Loading key from file: /etc/stunnel/server.pem [ ] Private key check succeeded [ ] DH initialization [ ] Could not load DH parameters from /etc/stunnel/server.pem [ ] DH parameters will be generated [ ] Cron started [ ] ECDH initialization [ ] ECDH initialized with curve prime256v1 [ ] SSL options: 0x03004004 (+0x03004000, -0x00000000) [.] Configuration successful [ ] Listening file descriptor created (FD=7) [ ] Service [<service>] (FD=7) bound to 127.0.0.1:9999 [ ] Executing cron jobs [.] Updating DH parameters [!] Cannot open log file: /home/tim/Desktop/stunnel.log [ ] Closing service [<service>] [ ] Service [<service>] closed (FD=7) [ ] Service [<service>] closed -- *CONFIDENTIALITY NOTICE* THE INFORMATION CONTAINED IN THIS COMMUNICATION IS INTENDED FOR THE NAMED RECEIVER ONLY. THE TRANSMISSION MAY CONTAIN PRIVILEGED AND CONFIDENTIAL MATERIAL. IF YOU ARE NOT THE NAMED RECIPIENT, PLEASE BE ADVISED THAT ANY USE, DISSEMINATION OR UNAUTHORIZED COPYING OF THE MATERIAL IS STRICTLY PROHIBITED. IF YOU HAVE RECEIVED THIS TRANSMISSION IN ERROR, PLEASE NOTIFY SUPPORT(a)TRUEEX.COM AND DESTROY THE RECEIVED COPY. THANK YOU.

1 0

Support for SHA-2 256
by Deepak Subbanarasimha 10 Jul '15

10 Jul '15

Does Stunnel support VeriSign SHA-2 256 certificate? If so, which version was this added in? Thanks, Deepak IMPORTANT NOTICE: This email is intended solely for the use of the individual to whom it is addressed and may contain information that is privileged, confidential or otherwise exempt from disclosure under applicable law. If the reader of this email is not the intended recipient or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately return the original message to the sender at the listed email address. In accordance with Kewill policy, emails sent and received may be monitored. Although Kewill takes reasonable precautions to minimize the risk, Kewill accepts no responsibility for any loss or damage should this email contain any virus, or similar destructive or mischievous code.

2 1

problem with buffering data on stunnel
by wujot 09 Jul '15

09 Jul '15

I have a problem with transmission from LAN server, which use another server on LAN with running stunnel, to pass encrypted data to remote SSL clients if they are on very slow GPRS network. If server in LAN starts to transfer big amount of data to such slow remote client, stunnel is buffering data and slowly transmits them to the GPRS client. TCP Window on connection from LAN server to stunnel is big (64 - 131kB), and TCP Window on connection from stunnel to slow client is small (about 5kB). And additionally stunnel is buffering data. So, server is finishing transmission in seconds, but in fact most of data are still in buffers of stunnel. And it makes a timeout problem (server is waiting for the confirmation from client if it received all data, but time between last byte sent from server and confirmation from client could be even several minutes). So, stunnel is working in "store and forward" model. Is it possible to switch it to something like "cut through"? Or how to force stunnel to more synchronized transmission between client and server? Regards, Adalbert

2 1

password protected key in client certificate
by Giona Il Profeta 03 Jul '15

03 Jul '15

Hi all, I have inherited an old stunnel installation, configured for mutual authentication (verify=3) and I'm trying to figure out some of the choices of the old sysadmin. One of the client certificates in the CApath directory has its private key encrypted with a password. Is the client supposed to provide the password to decrypt the key when it connects? Thank you G

2 2

Older versions of stunnel
by daninho dj 03 Jul '15

03 Jul '15

Hi guys, Where can I find some older versions of stunnel? I would like to get 5.17 version. Thanks, Daninho

2 1

Problem with read and unreald mails via POP3 SSL
by David Tedjo 30 Jun '15

30 Jun '15

Hi everybody, i bought an Logitech keyboard with display. I use now stunnel to bring my email account to my display. Logitech got a applet for this. Now i can use it but i got a problem with the unread mails. My display shows me 6 unread messages, but thats all my messages in my in-box and i read it already. Is this a problem of stunnel or a problem in the software of the keyboard? Best Regards David

2 1

automation of installation of loopback adapter
by Saurabh Beriwal 29 Jun '15

29 Jun '15

Hi All, I'd like to programmatically install the MS loopback adapter to automate tunneling of SMB over SSH. All the code which i found on net uses MS devcon utility. Please let us know if there is any simple way to automate the installation of MS loopback adapter. Thank you. Regards, Saurabh Beriwal

2 1

Re: [stunnel-users] installing stunnel on Mac Machine
by William Dockery 26 Jun '15

26 Jun '15

1. I’m an stunnel newbie. 2. I thought I would give the Mac install script a try: downloaded it to ~/Documents, did the chmod, and ran script; looks like it can’t create/find the config file? Is that something I need to do manually? WDDMBPW80336XHAGV:Documents williamdockery$ ./stunnel-5.20b8-osx [ ] Cron started [ ] Clients allowed=125 [.] stunnel 5.20 on x86_64-apple-darwin14.3.0 platform [.] Compiled/running with OpenSSL 0.9.8zd 8 Jan 2015 [.] Threading:PTHREAD Sockets:SELECT,IPv6 TLS:ENGINE,OCSP [ ] errno: (*__error()) [.] Reading configuration from file /etc/stunnel/stunnel.conf [!] Cannot open configuration file [.] [.] Syntax: [.] stunnel [<filename>] ] -fd <n> | -help | -version | -sockets [.] <filename> - use specified config file [.] -fd <n> - read the config file from a file descriptor [.] -help - get config file help [.] -version - display version and defaults [.] -sockets - display default socket options Thoughts? Thanks, William > > Message: 1 > Date: Thu, 25 Jun 2015 12:48:02 +0200 > From: Michal Trojnara <Michal.Trojnara(a)mirt.net> > Cc: stunnel-users(a)stunnel.org > Subject: Re: [stunnel-users] installing stunnel on Mac Machine > Message-ID: <558BDC62.9080606(a)mirt.net> > Content-Type: text/plain; charset=utf-8 > > Signed PGP part > On 25.06.2015 08:04, Saurabh Beriwal wrote: > > Is it possible to automate the installation on Mac machine? > > I built an executable for you: > ftp://ftp.stunnel.org/stunnel/stunnel-5.20b8-osx > Just copy to a directory, chmod a+x, and run it. > > Mike > >

1 0

installing stunnel on Mac Machine
by Saurabh Beriwal 25 Jun '15

25 Jun '15

Hi All, I need to install stunnel on Mac machine. If someone has already done this in past , then please share the installation steps with me. Do we need to install anything like loopback adopter in Mac Machine. Regards, Saurabh Beriwal

4 5

How to upgrade OpenSSL version that comes with Stunnel
by Paul Randall 24 Jun '15

24 Jun '15

Hi folks, Can you please tell me the process for swapping out the version of OpenSSL that comes with Stunnel for a newer version of OpenSSL? Is there a quick way to do this or does it require recompiling Stunnel? Thanks. Paul

1 0

Stunnel windows installer
by Deepak Subbanarasimha 22 Jun '15

22 Jun '15

Hi, Is there an MSI installer available for Stunnel version 5.19 ? If so, has anyone tried to call the stunnel MSI installer from an Install shield installer? Thanks, DEEPAK SUBBANARASIMHA Kewill DDI: +00 (1) 978 482 2625 Email: deepak.subbanarasimha(a)kewill.com<mailto:[email protected]> www.kewill.com<http://www.kewill.com/> Tel: +00 (1) 978 482 2500 | Fax: +00 (1) 978 482 2501 1 Executive Drive, Chelmsford, MA 01824, USA IMPORTANT NOTICE: This email is intended solely for the use of the individual to whom it is addressed and may contain information that is privileged, confidential or otherwise exempt from disclosure under applicable law. If the reader of this email is not the intended recipient or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately notify us by telephone at (978) 482-2500 and return the original message to us at the listed email address. In accordance with Kewill policy, emails sent and received may be monitored. Kewill accepts no responsibility for any loss or damage should this email contain any virus, or similar destructive or mischievous code. Thank You. Copyright (c) 2013 by Kewill Inc IMPORTANT NOTICE: This email is intended solely for the use of the individual to whom it is addressed and may contain information that is privileged, confidential or otherwise exempt from disclosure under applicable law. If the reader of this email is not the intended recipient or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately return the original message to the sender at the listed email address. In accordance with Kewill policy, emails sent and received may be monitored. Although Kewill takes reasonable precautions to minimize the risk, Kewill accepts no responsibility for any loss or damage should this email contain any virus, or similar destructive or mischievous code.

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Re: [stunnel-users] stunnel 5.18 may keep high CPU usage
by Dod 22 Jun '15

22 Jun '15

Hello Michal, Same problem with 5.19b4 and nothing special in the logs. Now I know how to reproduce the problem instantly, I just have to put my computer in StanBy mode and Awake it. Using Process Explorer from Sysinternals I see that stunnel produce a permanent "Other I/O" flow when problem appear. I/O Other : "The rate at which the process is issuing bytes to I/O operations that do not involve data such as control operations. This counter counts all I/O activity generated by the process to include file, network and device I/Os." OtherI/O is confirmed by Process Monitor that trace no File nor Registry nor Network activity. But as stunnel still respond correctly to a Quit menu or any other menus and SSL requests I assumed that it may be some Thread going crazy so I compared running thread between normal stunnel behavior with the 25% CPU behavior and found that in fact there is a thread that do no terminate correctly. Here is the Thread's stack : MSVCR90.dll!_endThread+0x7d ntoskrnl.exe!memset+0x61a ntoskrnl.exe!KeWaitForMultipleObjects+0xd52 ntoskrnl.exe!KeWaitForSingleObject+0x19f ntoskrnl.exe!PoStartNextPowerIrp+0xba4 ntoskrnl.exe!PoStartNextPowerIrp+0x1821 ntoskrnl.exe!PoStartNextPowerIrp+0x1a97 ntoskrnl.exe!KeReleaseInStackQueuedSpinLock+0x5a afd.sys+0x61c1c afd.sys+0x51d3b ntoskrnl.exe!NtMapViewOfSection+0x15b7 ntoskrnl.exe!NtDeviceIoControlFile+0x56 ntoskrnl.exe!KeSynchronizeExecution+0x3a23 wow64cpu.dll!TurboDispatchJumpAddressEnd+0x6c0 wow64cpu.dll!TurboDispatchJumpAddressEnd+0x1fb wow64.dll!Wow64SystemServiceEx+0x1ce wow64.dll!Wow64LdrpInitialize+0x42a ntdll.dll!RtlIsDosDeviceName_U+0x1f5c4 ntdll.dll!LdrInitializeThunk+0xe ntdll.dll!NtDeviceIoControlFile+0x15 WS2_32.dll!select+0x9f stunnel.exe!OPENSSL_Applink+0xd3ec stunnel.exe!OPENSSL_Applink+0x961 Hope it help... regards. MT> Please try stunnel 5.19b4: MT> https://www.stunnel.org/downloads.html

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Fwd: Disabling window server service
by Saurabh Beriwal 22 Jun '15

22 Jun '15

Hi All, I am using stunnel to connect with SAMBA server and getting error in binding with server. Please let me know if it is mandatory to disable window server service for using stunnel. Also i would appreciate if some one can share knowledge\articles on window to SAMBA server connectivity through stunnel. Thank you. Regards, Saurabh Beriwal

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Generate CONNECT
by reiner otto 22 Jun '15

22 Jun '15

I have following problem: I want to avoid the user to explicitly specify a https-proxy in his browser. Let me explain: For http, a transparent proxy can be interfaced via iptables DNAT, for example.Same for https will not work, without certificates installed etc.However, I only want some basic info about the https-session, like traffic volume or destination domain. In case, there is an explicit https-proxy defined in the browser, I can get this info from the connect request, preceding the secure data exchange.But I want to avoid this explicit declararion. Most likely I will need some custom programming for this, but may be there is a specialist here to give some direction.

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