stunnel-users

stunnel-users@stunnel.org

6 participants
3294 discussions

Re: [stunnel-users] openssl cross compiling for windows
by Jon Daley 27 Oct '10

27 Oct '10

On Wed, 27 Oct 2010, Michal Trojnara wrote: > 1. Install mingw32 tools: > apt-get install mingw32 Yes, I did that. > 2. Cross-compile and install zlib > (see the zlib documentation for details) Yes, I was doing that, but then was leaving it out since I don't need it (AFAIK). > 3. Cross-compile OpenSSL: > ./Configure --cross-compile-prefix=i586-mingw32msvc- mingw shared > zlib-dynamic > make And you end up with 3 dlls in the openssl directory? > 4. Cross-compile stunnel: > cd src > make stunnel.exe I can compile stunnel.exe fine, I just can't run it, because I don't have all three of the dlls. -- Jon Daley http://jon.limedaley.com ~~ If you do a job too well, you will get stuck with it. -- Slous

2 1

openssl cross compiling for windows
by Jon Daley 27 Oct '10

27 Oct '10

I am trying to compile openssl and stunnel for Win32, using my Debian host. openssl compilation: ./Configure --cross-compile-prefix=i586-mingw32msvc- mingw shared no-zlib && make The only problem I'm having is that libssl32.dll is not being created. I have the other libssl* files: libssl.a libssl.dll.a libssl.pc So, then I download the precompiled dlls of openssl from here: http://www.slproweb.com/products/Win32OpenSSL.html But, they require an additional vc redistributable, and since it seems like I'm so close, it'd be nice to finish it off the rest of the way. stunnel compiles fine pointing it at the openssl directory, but on run-time, it complains that libssl32.dll can't be found. Thanks. -- Jon Daley http://jon.limedaley.com ~~ There are no traffic jams when you go the extra mile. -- Anonymous

2 1

Stunnel dropping data on binary uploads from most browsers.
by Bill Crowell 16 Oct '10

16 Oct '10

All, I'm hoping that someone can assist with this. I'm using Stunnel on 2 different systems: Mac and FC 13 to front-end my web server for a custom database system. It works flawlessly except for uploading large binary files. The problem comes when trying to upload say a 2.5MB image file. The number of bytes actually transferred to the exec program is usually under 1K or right at about 33K. Using Firefox on Windows works all the time. I can observe the transfer by watching the stunnel.log file. When the data is piped into the openSSL engine, the number of bytes written to socket is being picked up by the exec program and processed so the loss is between the browser and the output side of Stunnel. The message itself is a multi-part message that is not mime-encoded. The part with the image is set in the boundary properly and contains the JPEG binary. (Thanks to HTTPwatch!) My Stunnel Version is: [root@linux log]# stunnel -version stunnel 4.33 on i386-redhat-linux-gnu with OpenSSL 1.0.0a-fips 1 Jun 2010 Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv6 Auth:LIBWRAP Global options debug = daemon.notice pid = /var/run/stunnel.pid RNDbytes = 64 RNDfile = /dev/urandom RNDoverwrite = yes Service-level options cert = /etc/stunnel/stunnel.pem ciphers = ALL:!aNULL:!eNULL:!SSLv2 session = 300 seconds stack = 65536 bytes sslVersion = SSLv3 for client, all for server TIMEOUTbusy = 300 seconds TIMEOUTclose = 60 seconds TIMEOUTconnect = 10 seconds TIMEOUTidle = 43200 seconds verify = none My configuration file on the Linux box is: cert = /etc/stunnel/server.crt key = /etc/stunnel/server.key debug = 7 output = /var/log/stunnel.log ;socket = l:SO_LINGER=1:60 ;socket = r:TCP_NODELAY=1 client = no sslVersion = SSLv3 [https] libwrap = no accept = 443 exec = /usr/qmsys/bin/qm execargs = /usr/qmsys/bin/qm -b7 -quiet -aPAVUK "P.HTTP" options = DONT_INSERT_EMPTY_FRAGMENTS TIMEOUTidle = 30 TIMEOUTbusy = 5 TIMEOUTclose = 0 *** A RANDOM SUCCESSFUL TRANSFER *** 2010.10.15 10:03:12 LOG7[946:3078133552]: Service https accepted FD=0 from 24.171.161.99:1998 2010.10.15 10:03:12 LOG7[946:3078241136]: Service https started 2010.10.15 10:03:12 LOG7[946:3078241136]: FD=0 in non-blocking mode 2010.10.15 10:03:12 LOG5[946:3078241136]: Service https accepted connection from 24.171.161.99:1998 2010.10.15 10:03:12 LOG7[946:3078241136]: SSL state (accept): before accept initialization 2010.10.15 10:03:12 LOG7[946:3078241136]: SSL state (accept): SSLv3 read client hello A 2010.10.15 10:03:12 LOG7[946:3078241136]: SSL state (accept): SSLv3 write server hello A 2010.10.15 10:03:12 LOG7[946:3078241136]: SSL state (accept): SSLv3 write change cipher spec A 2010.10.15 10:03:12 LOG7[946:3078241136]: SSL state (accept): SSLv3 write finished A 2010.10.15 10:03:12 LOG7[946:3078241136]: SSL state (accept): SSLv3 flush data 2010.10.15 10:03:12 LOG7[946:3078241136]: SSL state (accept): SSLv3 read finished A 2010.10.15 10:03:12 LOG7[946:3078241136]: 8 items in the session cache 2010.10.15 10:03:12 LOG7[946:3078241136]: 0 client connects (SSL_connect()) 2010.10.15 10:03:12 LOG7[946:3078241136]: 0 client connects that finished 2010.10.15 10:03:12 LOG7[946:3078241136]: 0 client renegotiations requested 2010.10.15 10:03:12 LOG7[946:3078241136]: 35 server connects (SSL_accept()) 2010.10.15 10:03:12 LOG7[946:3078241136]: 35 server connects that finished 2010.10.15 10:03:12 LOG7[946:3078241136]: 0 server renegotiations requested 2010.10.15 10:03:12 LOG7[946:3078241136]: 27 session cache hits 2010.10.15 10:03:12 LOG7[946:3078241136]: 0 external session cache hits 2010.10.15 10:03:12 LOG7[946:3078241136]: 0 session cache misses 2010.10.15 10:03:12 LOG7[946:3078241136]: 0 session cache timeouts 2010.10.15 10:03:12 LOG6[946:3078241136]: SSL accepted: previous session reused 2010.10.15 10:03:12 LOG6[946:3078241136]: Local mode child started (PID=1179) 2010.10.15 10:03:12 LOG7[946:3078241136]: Remote FD=13 initialized 2010.10.15 10:03:13 LOG7[946:3078241136]: Socket closed on read 2010.10.15 10:03:13 LOG7[946:3078241136]: SSL write shutdown 2010.10.15 10:03:13 LOG7[946:3078241136]: SSL alert (write): warning: close notify 2010.10.15 10:03:13 LOG6[946:3078241136]: SSL_shutdown successfully sent close_notify 2010.10.15 10:03:13 LOG6[946:3078241136]: s_poll_wait timeout: connection close 2010.10.15 10:03:13 LOG5[946:3078241136]: Connection closed: 2895 bytes sent to SSL, 2469539 bytes sent to socket 2010.10.15 10:03:13 LOG7[946:3078241136]: Service https finished (0 left) 2010.10.15 10:03:13 LOG7[946:3078133552]: Cleaning up the signal pipe 2010.10.15 10:03:13 LOG6[946:3078133552]: Child process 1179 finished with code 0 2010.10.15 10:03:13 LOG7[946:3078133552]: Signal pipe is empty *** MOST OF THE TIME - AN UNSUCCESSFUL TRANSFER *** 2010.10.15 10:05:01 LOG7[946:3078133552]: Service https accepted FD=0 from 24.171.161.99:1985 2010.10.15 10:05:01 LOG7[946:3077921648]: Service https started 2010.10.15 10:05:01 LOG7[946:3077921648]: FD=0 in non-blocking mode 2010.10.15 10:05:01 LOG5[946:3077921648]: Service https accepted connection from 24.171.161.99:1985 2010.10.15 10:05:01 LOG7[946:3077921648]: SSL state (accept): before/ accept initialization 2010.10.15 10:05:01 LOG7[946:3077921648]: SSL state (accept): SSLv3 read client hello A 2010.10.15 10:05:01 LOG7[946:3077921648]: SSL state (accept): SSLv3 write server hello A 2010.10.15 10:05:01 LOG7[946:3077921648]: SSL state (accept): SSLv3 write change cipher spec A 2010.10.15 10:05:01 LOG7[946:3077921648]: SSL state (accept): SSLv3 write finished A 2010.10.15 10:05:01 LOG7[946:3077921648]: SSL state (accept): SSLv3 flush data 2010.10.15 10:05:01 LOG7[946:3077921648]: SSL state (accept): SSLv3 read finished A 2010.10.15 10:05:01 LOG7[946:3077921648]: 9 items in the session cache 2010.10.15 10:05:01 LOG7[946:3077921648]: 0 client connects (SSL_connect()) 2010.10.15 10:05:01 LOG7[946:3077921648]: 0 client connects that finished 2010.10.15 10:05:01 LOG7[946:3077921648]: 0 client renegotiations requested 2010.10.15 10:05:01 LOG7[946:3077921648]: 44 server connects (SSL_accept()) 2010.10.15 10:05:01 LOG7[946:3077921648]: 44 server connects that finished 2010.10.15 10:05:01 LOG7[946:3077921648]: 0 server renegotiations requested 2010.10.15 10:05:01 LOG7[946:3077921648]: 35 session cache hits 2010.10.15 10:05:01 LOG7[946:3077921648]: 0 external session cache hits 2010.10.15 10:05:01 LOG7[946:3077921648]: 0 session cache misses 2010.10.15 10:05:01 LOG7[946:3077921648]: 0 session cache timeouts 2010.10.15 10:05:01 LOG6[946:3077921648]: SSL accepted: previous session reused 2010.10.15 10:05:01 LOG6[946:3077921648]: Local mode child started (PID=1213) 2010.10.15 10:05:01 LOG7[946:3077921648]: Remote FD=13 initialized 2010.10.15 10:05:04 LOG7[946:3077921648]: Socket closed on read 2010.10.15 10:05:04 LOG7[946:3077921648]: SSL write shutdown 2010.10.15 10:05:04 LOG7[946:3077921648]: SSL alert (write): warning: close notify 2010.10.15 10:05:04 LOG6[946:3077921648]: SSL_shutdown successfully sent close_notify 2010.10.15 10:05:04 LOG6[946:3077921648]: s_poll_wait timeout: connection close 2010.10.15 10:05:04 LOG5[946:3077921648]: Connection closed: 2895 bytes sent to SSL, 66703 bytes sent to socket 2010.10.15 10:05:04 LOG7[946:3077921648]: Service https finished (0 left) 2010.10.15 10:05:04 LOG7[946:3078133552]: Cleaning up the signal pipe 2010.10.15 10:05:04 LOG6[946:3078133552]: Child process 1213 finished with code 0 2010.10.15 10:05:04 LOG7[946:3078133552]: Signal pipe is empty *** All test cases are the same upload of the same image file. In all tests the number of bytes sent to socket matches what the exec program is receiving in its pipe. My feeling is that there is a connection issue between the browser and Stunnel. The successful upload of the test occurs sometimes with all browsers and appears to always work with Firefox for Windows. It has a 90% failure rate on Safari for Windows, Safari for Mac, Opera for Windows, Opera for Mac, etc. In all cases of testing, the number of bytes "sent to socket" is received by my exec program and consists of a truncated message from the browser. It appears that the data is simply being truncated somewhere in the Stunnel process. Any help is always appreciated! If there are more tests to be run to track down the problem, please advise and I will run them. Regards, Bill Bill Crowell, President Pavuk Technologies, LLC PO Box 33097 Charlotte, NC 28233-3097 Office +1 704.248.0024 Mobile +1 704.607.6077 Skype pavuk.com

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Recompiling Stunnel at version 4.34 appears to fix dropped data problem
by Bill Crowell 15 Oct '10

15 Oct '10

I reported a consistent data loss from most browsers when transferring large files. Compiling version 4.34 on Mac OS X 10.6.4 with the latest Xcode toolkit has resolved the connection problem for all browsers that I have tested except for Safari 5.0 on both Windows and Mac. It has also fixed a connection problem with IE 6 which was not accepting any connection to Stunnel prior to this installation. *** This problem still persists on my linux box running 4.33 installed from FC13. I will attempt a compile of 4.34 and see if this fixes the problem there as well. Fedora does not yet have a package for 4.34. Bill Bill Crowell, President Pavuk Technologies, LLC PO Box 33097 Charlotte, NC 28233-3097 Office +1 704.248.0024 Mobile +1 704.607.6077 Skype pavuk.com

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Re: [stunnel-users] stunnel daemon mode
by Joe Williams 08 Oct '10

08 Oct '10

> In inetd mode, you get a new Stunnel process for every connection. > Initialization must occur in *each* new process - they don't share > any state, including any session ids. > > In daemon mode, there's one stunnel process (threaded) which can > share state between threads, so it is much better. Ah I see, so running a single process (w/ pthreads) under runit I get the same effect as daemon mode. Correct? -Joe Name: Joseph A. Williams Email: joe(a)joetify.com Blog: http://www.joeandmotorboat.com/ Twitter: http://twitter.com/williamsjoe

1 0

stunnel daemon mode
by Joe Williams 07 Oct '10

07 Oct '10

According to http://www.sans.org/reading_room/whitepapers/vpns/stunnel-ssling-internet-s… In addition, Stunnel performance is improved by running it in daemon mode instead of inetd. Running Stunnel in daemon mode provides the following benefits: no SSL initialization necessary with every connection, and SSL session caching. Is this still the case? Running in the foreground you don't get these? Thanks. -Joe Name: Joseph A. Williams Email: joe(a)joetify.com Blog: http://www.joeandmotorboat.com/ Twitter: http://twitter.com/williamsjoe

1 0

fingerprint does not match
by Nelson 02 Oct '10

02 Oct '10

I have a running machine with stunnel installed for HTTPS services. Now, I want to setup another machine using the same configuration and key from my 1ST machine. I have installed stunnel patch with x-forwarded-for. However, everytime I try to start it up, it shows: Starting universal SSL tunnel: stunnelReading configuration from file /usr/local/etc/stunnel/stunnel.conf FIPS_mode_set: 2D06C06E: error:2D06C06E:FIPS routines:FIPS_mode_set:fingerprint does not match failed. I'm using the same key and cert that my 1ST machine is using. Would there be a problem? I've no problem starting stunnel yesterday. I just encountered this error when I change my ip address. I make sure that my config also listen to this ip address. Would anyone know how to fix this problem? Tried to Google but to no avail.

3 2

pop3 stunnel nmh to gmail
by Joseph Brenner 27 Sep '10

27 Sep '10

I'm an nmh user running ubuntu jaunty, and I want to get my local email working over SSL connections to a gmail account (POP3/SMTP). So I'm trying to get some form of mh to talk over SSL using stunnel4. I'm looking for suggestions on what I might be doing wrong, and hints on how to go about isolating the problems. I've succeeded in using slypheed to get mail from gmail, so I know the gmail account is working and is set-up for pop3 and so on. When I run mh's inc command, though, it just reports: "inc: no servers available" I can see that I've got stunnel running by doing a: ps ax | egrep stun | egrep -v egrep 5937 ? SN 0:00 /usr/bin/stunnel4 /etc/stunnel/stunnel.conf 5938 ? SN 0:00 /usr/bin/stunnel4 /etc/stunnel/stunnel.conf 5939 ? SN 0:00 /usr/bin/stunnel4 /etc/stunnel/stunnel.conf 5940 ? SN 0:00 /usr/bin/stunnel4 /etc/stunnel/stunnel.conf 5941 ? SN 0:00 /usr/bin/stunnel4 /etc/stunnel/stunnel.conf 5942 ? SNs 0:00 /usr/bin/stunnel4 /etc/stunnel/stunnel.conf Google has some instructions up about servers and port numbers (but no examples specific to stunnel): http://mail.google.com/support/bin/answer.py?hl=en&answer=13287 Here's a summary of the kind of configurations I've been trying: /etc/default/stunnel4: ENABLED=1 FILES="/etc/stunnel/*.conf" OPTIONS="" PPP_RESTART=0 /etc/stunnel/stunnel.conf: sslVersion = SSLv3 chroot = /var/lib/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 = yes [pop3s] accept = 127.0.0.1:995 connect = pop.gmail.com:110 [smtps] accept = 127.0.0.1:465 connect = smtp.gmail.com:25 /etc/nmh/mts.conf: mts: smtp hostable: /etc/nmh/hosts localname: smtp.gmail.com # localname: gmail.com masquerade: mmdfldir: /var/mail mmdflfil: # pophost: localhost # pophost: pop.gmail.com:995 pophost: pop.gmail.com:110 # pophost: pop.gmail.com # servers: localhost servers: smtp.gmail.com /var/log/stunnel4/stunnel.log 2010.09.21 11:11:41 LOG7[6528:140533218399984]: Snagged 64 random bytes from /dev/urandom 2010.09.21 11:11:41 LOG7[6528:140533218399984]: RAND_status claims sufficient entropy for the PRNG 2010.09.21 11:11:41 LOG7[6528:140533218399984]: PRNG seeded successfully 2010.09.21 11:11:41 LOG7[6528:140533218399984]: SSL context initialized for service pop3s 2010.09.21 11:11:41 LOG7[6528:140533218399984]: SSL context initialized for service imaps 2010.09.21 11:11:41 LOG7[6528:140533218399984]: SSL context initialized for service smtps 2010.09.21 11:11:41 LOG5[6528:140533218399984]: stunnel 4.22 on x86_64-pc-linux-gnu with OpenSSL 0.9.8g 19 Oct 2007 2010.09.21 11:11:41 LOG5[6528:140533218399984]: Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv6 Auth:LIBWRAP 2010.09.21 11:11:41 LOG6[6528:140533218399984]: file ulimit = 1024 (can be changed with 'ulimit -n') 2010.09.21 11:11:41 LOG6[6528:140533218399984]: poll() used - no FD_SETSIZE limit for file descriptors 2010.09.21 11:11:41 LOG5[6528:140533218399984]: 500 clients allowed 2010.09.21 11:11:41 LOG7[6528:140533218399984]: FD 10 in non-blocking mode 2010.09.21 11:11:41 LOG7[6528:140533218399984]: FD 11 in non-blocking mode 2010.09.21 11:11:41 LOG7[6528:140533218399984]: FD 12 in non-blocking mode 2010.09.21 11:11:41 LOG7[6528:140533218399984]: SO_REUSEADDR option set on accept socket 2010.09.21 11:11:41 LOG7[6528:140533218399984]: pop3s bound to 127.0.0.1:1109 2010.09.21 11:11:41 LOG7[6528:140533218399984]: FD 13 in non-blocking mode 2010.09.21 11:11:41 LOG7[6528:140533218399984]: SO_REUSEADDR option set on accept socket 2010.09.21 11:11:41 LOG7[6528:140533218399984]: imaps bound to 0.0.0.0:993 2010.09.21 11:11:41 LOG7[6528:140533218399984]: FD 14 in non-blocking mode 2010.09.21 11:11:41 LOG7[6528:140533218399984]: SO_REUSEADDR option set on accept socket 2010.09.21 11:11:41 LOG7[6528:140533218399984]: smtps bound to 127.0.0.1:259 2010.09.21 11:11:41 LOG7[6534:140533218399984]: Created pid file /stunnel4.pid /var/log/mail.log Sep 21 13:40:32 fineline gnu-pop3d[15484]: Incoming connection opened Sep 21 13:40:32 fineline gnu-pop3d[15484]: connect from 127.0.0.1 Sep 21 13:40:32 fineline gnu-pop3d[15484]: User `doomvox(a)gmail.com': nonexistent Sep 21 13:40:32 fineline gnu-pop3d[15484]: Session ended for no user I'm using the "stunnel4" package for ubuntu jaunty: /usr/bin/stunnel4 -version stunnel 4.22 on x86_64-pc-linux-gnu with OpenSSL 0.9.8g 19 Oct 2007 Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv6 Auth:LIBWRAP Global options debug = 5 pid = /var/run/stunnel4.pid RNDbytes = 64 RNDfile = /dev/urandom RNDoverwrite = yes Service-level options cert = /etc/stunnel/stunnel.pem ciphers = AES:ALL:!aNULL:!eNULL:+RC4:@STRENGTH key = /etc/stunnel/stunnel.pem session = 300 seconds stack = 65536 bytes sslVersion = SSLv3 for client, all for server TIMEOUTbusy = 300 seconds TIMEOUTclose = 60 seconds TIMEOUTconnect = 10 seconds TIMEOUTidle = 43200 seconds verify = none uname -a Linux fineline 2.6.24-16-generic #1 SMP Thu Apr 10 12:47:45 UTC 2008 x86_64 GNU/Linux gcc -v Using built-in specs. Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Ubuntu 4.3.3-5ubuntu4' --with-bugurl=file:///usr/share/doc/gcc-4.3/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.3 --program-suffix=-4.3 --enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc --enable-mpfr --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu Thread model: posix gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) openssl version OpenSSL 0.9.8g 19 Oct 2007

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Critical error on stunnel 434 for WinCE/Windows Mobile: no service at all, because of failure in thread creation
by Pierre DELAAGE 26 Sep '10

26 Sep '10

Hello Michal, Maybe you remember me, I am the man that refreshed stunnel for winCE up to 4.27 version. Thank you for having included my code to your mainstream at that time. As a win32 regular programmer I always check that my code is as close as possible as that of the main win32 stream for PC. I am writing you today to point out a critical bug that prevent stunnel 4.34 from servicing any service at all . I have fixed that bug and will send you a refresh of all the sources (that needed some after some win32 PC version updates) soon. SO DO NOT DO ANYTHING. the bug is in sthread.c: the wince _beginthread port has been modified (by someone else but me) as this : v434: handle=CreateThread(NULL, stack_size, (LPTHREAD_START_ROUTINE)start_address, arglist, STACK_SIZE_PARAM_IS_A_RESERVATION, &thread_id); the "STACK_SIZE_PARAM_IS_A_RESERVATION" flag is the novelty from 4.27. The problem is that beginthread is being called from gui.c with stacksize=0 SO THAT a stack of 0 size "TRIES to be RESERVED" and then CreateThread FAILS to return a valid handle. That is to say that no thread is created, and thus NO TUNNELING SERVICE at all can be delivered. So stunnel cannot work at all. Solution : the proper call is : handle=CreateThread(NULL, stack_size, (LPTHREAD_START_ROUTINE)start_address, arglist, (stack_size > 0) ? STACK_SIZE_PARAM_IS_A_RESERVATION:0, &thread_id); I repeat and insist : please DO NOT DO anything to the code, as I will send soon a refresh with various other updates (because apart from that critical bug, the code needs other refresh to compile properly), and as I am also working on a refresh of openssl up to 1.0.0a (those gentlemen at openssl never included any wce patch to their mainstream, which is really a pity, but another story). See you soon, Thank you again for all the work you do for the community of people, Pierre

2 4

stunnel v4.32 & mac v10.6.3
by Cherry Ngai 25 Sep '10

25 Sep '10

Hello, I am new to stunnel. My stunnel v4.32 is installed to my mac v10.6.3 using MacPort. I am trying to setup active directory, but there is no process start when i run sudo /opt/local/bin/stunnel /opt/local/etc/stunnel/stunnel.conf There is no error msg after i run the command. I believe it could have something to do with my configuration? Having it running in debug mode, I can't find the created output file. Could someone help me? Or tell me where i can find the output file? Thanks! Stunnel seems successfully installed, as it has returned the following with the command "sudo stunnel -version" stunnel 4.32 on i686-apple-darwin10.3.0 with OpenSSL 1.0.0a 1 Jun 2010 Threading:PTHREAD SSL:ENGINE Sockets:SELECT,IPv6 Auth:LIBWRAP Global options debug = daemon.notice pid = /opt/local/var/run/stunnel/stunnel.pid RNDbytes = 64 RNDfile = /dev/urandom RNDoverwrite = yes Service-level options cert = /opt/local/etc/stunnel/stunnel.pem ciphers = ALL:!aNULL:!eNULL:!SSLv2 session = 300 seconds stack = 65536 bytes sslVersion = SSLv3 for client, all for server TIMEOUTbusy = 300 seconds TIMEOUTclose = 60 seconds TIMEOUTconnect = 10 seconds TIMEOUTidle = 43200 seconds verify = none Here is my config: cert = /opt/local/etc/stunnel/stunnel.pem key = /opt/local/etc/stunnel/stunnel.pem sslVersion = SSLv3 chroot = /opt/local/var/lib/stunnel/ setuid = nobody setgid = nogroup pid = /stunnel.pid socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 debug = 7 output = stunnel.log client = yes [ActiveDirectory1] accept = 391 connect = SOME_IP:636 Cheers, Cherry

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stunnel-users