- stunnel-users - stunnel.org

Session resumption
by Rick Cone, Secure Payment Systems 27 Oct '04

27 Oct '04

I use Stunnel 4.03 I have been working on a project with some slow POS equipment trying to do SSL connections. Because of the slow processors on these devices, we are trying to speed up the connection and transaction. The concept of "session resumption" came up. What is the best way to setup Stunnel to make subsequent connections faster with session resumption. Thanks, Rick Cone Secure Payment Systems 801 8th St. #150-D Greeley, CO 80631 970-352-9434 (office) 970-352-0122 (fax, call office first) rcone(a)securepaymentsystems.com Note: This electronic message and attachments, if any, contain information which is intended solely for the designated recipients. Unauthorized disclosure, copying, distribution, or other use of the contents of this message or attachments, in whole or in part, is prohibited without express authorization of the author of this message.

2 1

Connection crypted with pppd
by angelo.raspanti 27 Oct '04

27 Oct '04

Mike wrote >Using chroot with exec is not trivial. Please make sure you know what >your're trying to do. 8-) OK, i have skip this argument, now i study better it and retry with a new configuration. Thanks

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Outlook has problems with sending email
by Kenneth Simpson 27 Oct '04

27 Oct '04

Hi - I'm having problems with Stunnel 4.05 and Outlook - but not with Mozilla/Thunderbird. Unfortantely, most of our users use Outlook from Office 2000 and Office XP. The problem is Outlook can't send email when using SIMAP/SSMTP. If the remote users set their SMTP server to be their ISP, then Outlook doesn't have a problem. It suggests a sendmail issue except Mozilla/Thunderbird work fine. How do most people configure stunnel for Outlook? We're behind a screening router and port 587 - the so-called sendmail "submission" port - is currently closed. All ICMP is administratively disabled for this host at the router. But sendmail on this particular host is configured for port 587 behind the firewall. Is there a need to configure stunnel for port 587 too? We're using OpenSSL 0.9.7d Sendmail 8.12.10 Stunnel 4.0.5 SPARC Solaris 5.8 Enclosed is the stunnel.conf file. Under version 3.x roughly year ago things appeared to be working correctly - but we've upgraded both sendmail and SSL since then - and our users where migrating from Outlook Express to Outlook. Any ideas? I've added the options options = DONT_INSERT_EMPTY_FRAGMENTS TIMEOUTbusy = 300 TIMEOUTclose = 60 TIMEOUTidle = 43200 but no help. Any help would greatly appreciated! -- Ken

2 1

Stunnel process die-off halfway
by PinLee_Su＠azuretech.com.sg 27 Oct '04

27 Oct '04

I have downloaded and installed the stunnel-4.05.exe together with the libssl32.dll and libeay32.dll from stunnel.org. I am able to start the stunnel without problem. however after the a while the process die-off automatically. check the event log in the windows (using Windows XP), it gives error msg as "Faulting application stunnel-4-05.exe, version 0.0.0.0, faulting module libssl32.dll, version 0.0.0.0, fault address 0x00006cd8." I would appreciate if anyone can help me on this? many thanks in advance!

1 0

(no subject)
by PinLee_Su＠azuretech.com.sg 27 Oct '04

27 Oct '04

I have downloaded and installed the stunnel-4.05.exe together with the libssl32.dll and libeay32.dll from stunnel.org. I am able to start the stunnel without problem. however after the a while the process die-off automatically. check the event log in the windows (using Windows XP), it gives error msg as "Faulting application stunnel-4-05.exe, version 0.0.0.0, faulting module libssl32.dll, version 0.0.0.0, fault address 0x00006cd8." I would appreciate if anyone can help me on this? many thanks in advance!

1 0

Connection crypted with pppd
by angelo.raspanti 27 Oct '04

27 Oct '04

I have a problem using stunnel v 4.05 under Linux with kernel 2.4.27. My target is using two PC connected via serial port with trafic crypted. I have achieved this schema: +-------+ +-------+ | | | | | PC1 |------------rs232---------| PC2 | | |10.0.0.1 10.0.0.2| | | | | | +-------+ +-------+ I have started pppd in raw mode in PC1 and PC2 and i have verified (with ping)that the link is OK for trafic without criptyng. Below i have tried to "mount" a tunnel cripted between PC1 and PC2 but stunnel server side return an error in openpty function. The stunnel.conf server side (PC1) is: -------------------------------------- cert = /usr/local/etc/stunnel/stunnel.pem chroot = /var/run/stunnel/ pid = setuid = nobody setgid = nobody # Some debugging stuff debug = 7 output = /var/log/stunnel.log foreground=no # Service-level configuration [ppp] accept = 2020 exec = /usr/sbin/pppd execargs = pppd local pty = yes The stunnel.conf client side (PC2) is: -------------------------------------- cert = /usr/local/etc/stunnel/stunnel.pem chroot = /var/run/stunnel/ pid = setuid = nobody setgid = nobody # Some debugging stuff debug = 7 output = /var/log/stunnel.log # Use it for client mode client = yes connect = 10.0.0.1:2020 exec = /usr/sbin/pppd execargs = pppd local The log file server side (PC1) is: ---------------------------------- 2004.10.27 07:25:19 LOG5[5246:16384]: stunnel 4.05 on i686-pc-linux-gnu PTHREAD+LIBWRAP with OpenSSL 0.9.7a Feb 19 2003 2004.10.27 07:25:19 LOG7[5246:16384]: RAND_status claims sufficient entropy for the PRNG 2004.10.27 07:25:19 LOG6[5246:16384]: PRNG seeded successfully 2004.10.27 07:25:19 LOG7[5246:16384]: Certificate: /usr/local/etc/stunnel/stunnel.pem 2004.10.27 07:25:19 LOG7[5246:16384]: Key file: /usr/local/etc/stunnel/stunnel.pem 2004.10.27 07:25:19 LOG5[5246:16384]: FD_SETSIZE=1024, file ulimit=1024 -> 500 clients allowed 2004.10.27 07:25:19 LOG7[5246:16384]: FD 4 in non-blocking mode 2004.10.27 07:25:19 LOG7[5246:16384]: SO_REUSEADDR option set on accept socket 2004.10.27 07:25:19 LOG7[5246:16384]: ppp bound to 0.0.0.0:2020 2004.10.27 07:25:19 LOG7[5246:16384]: FD 5 in non-blocking mode 2004.10.27 07:25:19 LOG7[5246:16384]: FD 6 in non-blocking mode 2004.10.27 07:25:19 LOG7[5247:16384]: No pid file being created 2004.10.27 07:25:59 LOG7[5247:16384]: ppp accepted FD=7 from 10.0.0.2:39791 2004.10.27 07:25:59 LOG7[5247:16384]: FD 7 in non-blocking mode 2004.10.27 07:25:59 LOG7[5251:16386]: ppp started 2004.10.27 07:25:59 LOG5[5251:16386]: ppp connected from 10.0.0.2:39791 2004.10.27 07:25:59 LOG7[5251:16386]: SSL state (accept): before/accept initialization 2004.10.27 07:25:59 LOG7[5251:16386]: waitforsocket: FD=7, DIR=read 2004.10.27 07:25:59 LOG7[5251:16386]: waitforsocket: ok 2004.10.27 07:25:59 LOG7[5251:16386]: SSL state (accept): SSLv3 read client hello A 2004.10.27 07:25:59 LOG7[5251:16386]: SSL state (accept): SSLv3 write server hello A 2004.10.27 07:25:59 LOG7[5251:16386]: SSL state (accept): SSLv3 write certificate A 2004.10.27 07:25:59 LOG7[5251:16386]: SSL state (accept): SSLv3 write server done A 2004.10.27 07:25:59 LOG7[5251:16386]: SSL state (accept): SSLv3 flush data 2004.10.27 07:25:59 LOG7[5251:16386]: waitforsocket: FD=7, DIR=read 2004.10.27 07:26:00 LOG7[5251:16386]: waitforsocket: ok 2004.10.27 07:26:00 LOG7[5251:16386]: SSL state (accept): SSLv3 read client key exchange A 2004.10.27 07:26:00 LOG7[5251:16386]: SSL state (accept): SSLv3 read finished A 2004.10.27 07:26:00 LOG7[5251:16386]: SSL state (accept): SSLv3 write change cipher spec A 2004.10.27 07:26:00 LOG7[5251:16386]: SSL state (accept): SSLv3 write finished A 2004.10.27 07:26:00 LOG7[5251:16386]: SSL state (accept): SSLv3 flush data 2004.10.27 07:26:00 LOG7[5251:16386]: 1 items in the session cache 2004.10.27 07:26:00 LOG7[5251:16386]: 0 client connects (SSL_connect()) 2004.10.27 07:26:00 LOG7[5251:16386]: 0 client connects that finished 2004.10.27 07:26:00 LOG7[5251:16386]: 0 client renegotiatations requested 2004.10.27 07:26:00 LOG7[5251:16386]: 1 server connects (SSL_accept()) 2004.10.27 07:26:00 LOG7[5251:16386]: 1 server connects that finished 2004.10.27 07:26:00 LOG7[5251:16386]: 0 server renegotiatiations requested 2004.10.27 07:26:00 LOG7[5251:16386]: 0 session cache hits 2004.10.27 07:26:00 LOG7[5251:16386]: 0 session cache misses 2004.10.27 07:26:00 LOG7[5251:16386]: 0 session cache timeouts 2004.10.27 07:26:00 LOG6[5251:16386]: Negotiated ciphers: AES256-SHA SSLv3 Kx=RSA Au=RSA Enc=AES(256) Mac=SHA1 2004.10.27 07:26:00 LOG7[5251:16386]: pty_allocate:namebuf=, namebuflen=1024 : Success (0) 2004.10.27 07:26:00 LOG3[5251:16386]: openpty: No such file or directory (2) 2004.10.27 07:26:00 LOG3[5251:16386]: Failed to initialize remote connection 2004.10.27 07:26:00 LOG7[5251:16386]: ppp finished (0 left) The log file client side (PC2) is: ---------------------------------- 2004.10.27 07:20:16 LOG5[4460:16384]: stunnel 4.05 on i686-pc-linux-gnu PTHREAD+LIBWRAP with OpenSSL 0.9.7a Feb 19 2003 2004.10.27 07:20:16 LOG7[4460:16384]: RAND_status claims sufficient entropy for the PRNG 2004.10.27 07:20:16 LOG6[4460:16384]: PRNG seeded successfully 2004.10.27 07:20:16 LOG7[4460:16384]: Certificate: /usr/local/etc/stunnel/stunnel.pem 2004.10.27 07:20:16 LOG7[4460:16384]: Key file: /usr/local/etc/stunnel/stunnel.pem 2004.10.27 07:20:16 LOG7[4460:16384]: stunnel started 2004.10.27 07:20:16 LOG6[4460:16384]: Local mode child started (PID=4461) 2004.10.27 07:20:16 LOG5[4460:16384]: stunnel connected from 127.0.0.1:39790 2004.10.27 07:20:16 LOG7[4460:16384]: FD 4 in non-blocking mode 2004.10.27 07:20:16 LOG7[4460:16384]: stunnel connecting 10.0.0.1:2020 2004.10.27 07:20:16 LOG7[4460:16384]: remote connect #1: EINPROGRESS: retrying 2004.10.27 07:20:16 LOG7[4460:16384]: waitforsocket: FD=4, DIR=write 2004.10.27 07:20:16 LOG3[4461:16384]: /usr/sbin/pppd: No such file or directory (2) 2004.10.27 07:20:16 LOG7[4460:16384]: waitforsocket: ok 2004.10.27 07:20:16 LOG7[4460:16384]: Remote FD=4 initialized 2004.10.27 07:20:16 LOG7[4460:16384]: SSL state (connect): before/connect initialization 2004.10.27 07:20:16 LOG7[4460:16384]: SSL state (connect): SSLv3 write client hello A 2004.10.27 07:20:16 LOG7[4460:16384]: waitforsocket: FD=4, DIR=read 2004.10.27 07:20:17 LOG7[4460:16384]: waitforsocket: ok 2004.10.27 07:20:17 LOG7[4460:16384]: SSL state (connect): SSLv3 read server hello A 2004.10.27 07:20:17 LOG7[4460:16384]: SSL state (connect): SSLv3 read server certificate A 2004.10.27 07:20:17 LOG7[4460:16384]: SSL state (connect): SSLv3 read server done A 2004.10.27 07:20:17 LOG7[4460:16384]: SSL state (connect): SSLv3 write client key exchange A 2004.10.27 07:20:17 LOG7[4460:16384]: SSL state (connect): SSLv3 write change cipher spec A 2004.10.27 07:20:17 LOG7[4460:16384]: SSL state (connect): SSLv3 write finished A 2004.10.27 07:20:17 LOG7[4460:16384]: SSL state (connect): SSLv3 flush data 2004.10.27 07:20:17 LOG7[4460:16384]: waitforsocket: FD=4, DIR=read 2004.10.27 07:20:17 LOG7[4460:16384]: waitforsocket: ok 2004.10.27 07:20:17 LOG7[4460:16384]: SSL state (connect): SSLv3 read finished A 2004.10.27 07:20:17 LOG7[4460:16384]: 1 items in the session cache 2004.10.27 07:20:17 LOG7[4460:16384]: 1 client connects (SSL_connect()) 2004.10.27 07:20:17 LOG7[4460:16384]: 1 client connects that finished 2004.10.27 07:20:17 LOG7[4460:16384]: 0 client renegotiatations requested 2004.10.27 07:20:17 LOG7[4460:16384]: 0 server connects (SSL_accept()) 2004.10.27 07:20:17 LOG7[4460:16384]: 0 server connects that finished 2004.10.27 07:20:17 LOG7[4460:16384]: 0 server renegotiatiations requested 2004.10.27 07:20:17 LOG7[4460:16384]: 0 session cache hits 2004.10.27 07:20:17 LOG7[4460:16384]: 0 session cache misses 2004.10.27 07:20:17 LOG7[4460:16384]: 0 session cache timeouts 2004.10.27 07:20:17 LOG6[4460:16384]: Negotiated ciphers: AES256-SHA SSLv3 Kx=RSA Au=RSA Enc=AES(256) Mac=SHA1 2004.10.27 07:20:17 LOG7[4460:16384]: Socket closed on read 2004.10.27 07:20:17 LOG7[4460:16384]: SSL write shutdown (output buffer empty) 2004.10.27 07:20:17 LOG7[4460:16384]: SSL alert (write): warning: close notify 2004.10.27 07:20:17 LOG7[4460:16384]: SSL_shutdown retrying 2004.10.27 07:20:17 LOG3[4460:16384]: SSL_read (ERROR_SYSCALL): Connection reset by peer (104) 2004.10.27 07:20:17 LOG5[4460:16384]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2004.10.27 07:20:17 LOG7[4460:16384]: stunnel finished (0 left) Any suggestion ? Thanks in advance.. Angelo Raspanti

2 1

Stunnel process die-off halfway
by PinLee_Su＠azuretech.com.sg 25 Oct '04

25 Oct '04

I have downloaded and installed the stunnel-4.05.exe together with the libssl32.dll and libeay32.dll from stunnel.org. I am able to start the stunnel without problem. however after the a while the process die-off automatically. check the event log in the windows (using Windows XP), it gives error msg as "Faulting application stunnel-4-05.exe, version 0.0.0.0, faulting module libssl32.dll, version 0.0.0.0, fault address 0x00006cd8." I would appreciate if anyone can help me on this? many thanks in advance! "Azure Technologies is the IT solutions provider of Hutchison Whampoa Limited and a member of Hutchison Global Communications Holdings Limited." The message is for information purposes only and is not intended to create legally binding relations. The shareholders, directors and management of Azure Technologies and any of its group companies accept no responsibility and accordingly shall have no liability to any party whatsoever with respect to the contents of this message. This message (including any attachments) is intended only for the use of the addressee(s) named above. It may contain information that is PRIVILEGED and CONFIDENTIAL and should not be read, copied or otherwise used by any other person. If you are not the intended recipient, please erase all copies of the message (including attachments) and notify us immediately.

1 0

Compiling v4.05 from source
by Ed Vazquez 23 Oct '04

23 Oct '04

On an up-to-date version of Linux, I get this error following a successful config: $ make Making all in src make[1]: Entering directory `/g/vs-build/stunnel-4.05/src' Makefile:404: warning: overriding commands for target `stunnel.exe' Makefile:265: warning: ignoring old commands for target `stunnel.exe' cd .. && automake --gnu --include-deps src/Makefile configure.ac:5: your implementation of AM_INIT_AUTOMAKE comes from an configure.ac:5: old Automake version. You should recreate aclocal.m4 configure.ac:5: with aclocal and run automake again. src/Makefile.am: required file `auto/depcomp' not found /usr/share/automake-1.9/am/depend2.am: am__fastdepCC does not appear in AM_CONDITIONAL /usr/share/automake-1.9/am/depend2.am: AMDEP does not appear in AM_CONDITIONAL make[1]: *** [Makefile.in] Error 63 make[1]: Leaving directory `/g/vs-build/stunnel-4.05/src' make: *** [all-recursive] Error 1 After running aclocal (completes with no errors), I re-run configure and try to make again: $ make Making all in src make[1]: Entering directory `/g/vs-build/stunnel-4.05/src' Makefile:404: warning: overriding commands for target `stunnel' Makefile:265: warning: ignoring old commands for target `stunnel' cd .. && automake-1.9 --gnu --include-deps src/Makefile src/Makefile.am: required file `auto/depcomp' not found make[1]: *** [Makefile.in] Error 1 make[1]: Leaving directory `/g/vs-build/stunnel-4.05/src' make: *** [all-recursive] Error 1 Ideas? Suggestions? Did I screw something up? Ed Vazquez To speak ill of others is a dishonest way of praising ourselves. . . let us be above such transparent egotism. - Will Durant

2 1

stunnel with SHOUTcast
by grimholtz＠mailbolt.com 20 Oct '04

20 Oct '04

Anyone gotten stunel to work with SHOUTcast or another streaming audio server? Regards, Eric Jung

3 2

stunnel with netcat.
by Graeme Stewart 19 Oct '04

19 Oct '04

I'm hoping someone on this list will take the time to help me. I apologize for the newbie nature of this question. I'm trying to create an SSL stunnel connection to an https URL then utilize netcat to send requests through that previously established link. I believe this should be possible. My configuration file includes: verify=0 client=yes [https] accept=localhost:8080 connect=www.remotesite.com:443 TIMEOUTEclose=0 transparent=yes Whenever I run: # stunnel stunnel.config # nc -vv localhost 8080 I receive a connection refused error from netcat. Could someone point me in the right direction? I did review the examples on stunnel.org but they all seem to reference an earlier version of stunnel. Thanks, Graeme

2 5

any way to search the archives?
by grimholtz＠mailbolt.com 19 Oct '04

19 Oct '04

Hi, Is there any way to search the archives at http://mirt.net/pipermail/stunnel-users/ or do I just have to go through them manually? Thank you for any reply, Eric Jung

2 1

Stunnel and streaming audio
by grimholtz＠mailbolt.com 19 Oct '04

19 Oct '04

Hi, I'm using stunnel 4.05 on Windows 2000 for both client and server. I have VNC working just fine over port 443. Now I want to stream audio from the server to the client over port 21 with stunnel and any streaming audio server. I can't get this to work. I'm currently using Windows Media Encoder for streaming because it is simple and free, but I don't mind switching to SHOUTcast or something else. This is the stunnel server configuration: CAfile = CAcert.pem CApath = certificates cert = server.pem client = no verify = 3 [vnc] accept = 443 connect = 127.0.0.1:15351 [audiostream] accept = 21 connect = 127.0.0.1:80 On the client-side, I have this configuration: CAfile = CAcert.pem CApath = certificates cert = client.pem client = yes verify = 3 [vnc] accept = 127.0.0.1:15351 connect = someurl.com:443 [audiostream] accept = 127.0.0.1:80 connect = someurl.com:21 VNC works fine but streaming audio does not. It doesn't matter if I change port 21 to something else; I get the same error. The output on the server-side stunnel console is: 2004.10.18 13:16:02 LOG5[2036:1732]: audiostream connected from xxx.xxx.xxx.xxx:59090 The output on the client-side stunnel console is: 2004.10.18 13:21:07 LOG5[1088:1300]: audiostream connected from 127.0.0.1:1467 2004.10.18 13:21:07 LOG3[1088:1300]: SSL_connect: Peer suddenly disconnected stunnel -version on the server-side displays this info: stunnel 4.05 on x86-pc-mingw32-gnu WIN32 with OpenSSL 0.9.7d 17 Mar 2004 Global options cert = stunnel.pem ciphers = ALL:!ADH:+RC4:@STRENGTH debug = 5 key = stunnel.pem RNDbytes = 64 RNDoverwrite = yes service = stunnel session = 300 seconds taskbar = yes verify = none Service-level options TIMEOUTbusy = 300 seconds TIMEOUTclose = 60 seconds TIMEOUTidle = 43200 seconds 2004.10.18 20:47:05 LOG3[1316:2092]: Server is down openssl version on the server-side displays this info: OpenSSL 0.9.7d 17 Mar 2004 Anyone have ideas? Thank you in advance for any advice, Eric Jung

1 0

Client certificates still valid after removal with verify = 3
by Michael Brown 18 Oct '04

18 Oct '04

I'm having a problem with my stunnel 4.05 setup: We are using a setup where each client that connects has to have a valid certificate present on the filesystem (verify = 3). After the client connects once, it seems that the certificate is cached by either the SSL libraries or stunnel: stunnel.conf: <<< cert = /etc/stunnel/servercert.pem CAfile = /usr/share/ssl/CA/cacert.pem CApath = /etc/stunnel/clientdb verify = 3 [https] accept = 443 connect = remote.server.name:443 local = 192.168.0.6 >>> Some output: Oct 15 19:36:34 machine stunnel[14139]: VERIFY OK: depth=1, /C=CA/ST=Ontario/L=Here/O=Us/OU=Bigwigs/CN=CA Cert/emailAddress=certainly(a)here.com Oct 15 19:36:34 fruitfly stunnel[14139]: VERIFY OK: depth=0, /C=CA/ST=Ontario/O=Us/OU=slackers anonymous/CN=Daniel Unceman/emailAddress=dunce(a)here.com ... and the same thing after I remove the hash link in /etc/stunnel/clientdb. But only after I restart does it to the right thing: Oct 15 19:40:24 fruitfly stunnel[15247]: VERIFY OK: depth=1, /C=CA/ST=Ontario/L=Here/O=Us/OU=Bigwigs/CN=CA Cert/emailAddress=certainly(a)here.com Oct 15 19:40:24 fruitfly stunnel[15247]: VERIFY ERROR ONLY MY: no cert for /C=CA/ST=Ontario/O=Us/OU=slackers anonymous/CN=Daniel Unceman/emailAddress=dunce(a)here.com Help! We don't want to have to restart stunnel every time we remove a user. Thanks, Michael Brown -- Michael Brown {0x527670C0} | `One of the main causes of the fall of Systems Administrator | the Roman Empire was that, lacking zero, +1 519 888 7111 x2339 | they had no way to indicate successful michaelb(a)opentext.com | termination of their C programs.' - Firth

2 1

New feature
by Michal Trojnara 18 Oct '04

18 Oct '04

Dear Users, New line in stunnel 4.06 ChangeLog: - Multiple connect=host:port options are allowed in a single service section. Remote hosts are connected using round-robin algorithm. What do you think? Best regards, Mike

7 9

Using stunnel with HTTP as server and client
by Wayne A Collins 14 Oct '04

14 Oct '04

I am new to the product and encryption as well, but am looking for some unix examples using with an HTTP client and a server to communicate with HTTP/S applications. I have looked through the archives, but they only go back 3 months. I know this has had to have been done many times but am missing something. Thanks, Wayne A. Collins IBM Global Services IT Architect, eBI - Communications & Public Sectors wacollin(a)us.ibm.com 941-792-0448 Office 800-759-8888 Pin # 1019403 Pager

3 2

Re: Problem running Stunnel
by Olivier Kaloudoff 13 Oct '04

13 Oct '04

Hi Robert, > When I run stunnel nothing seems to be happening. The terminal > accepts the command but does nothing. The log file doesn't produce any > output either nor does running stunnel in the foreground. (...) > What is meant to happen when I run stunnel, is there a way that I > can test if it is working. I previously tested imapd using telnet 0 143. > I'm using this > http://www.stepwise.com/Articles/Workbench/eart.4.0.html > article but its out of date, uses 3.x command line inputs, so I've tried > to convert those to the config file. put the following in your stunnel.conf to have useful debugging informations for 4.x: # Some debugging stuff debug = 7 output = /tmp/stunnel.log # comment out pid = line, that causes problems. # (to be re-enabled later if you need) # pid = /tmp/stunnel.pid launch your stunnel process with the following: stunnel stunnel.conf and watch your logfile at the same time: tail -f /tmp/stunnel.log Regards, Olivier

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Stunnel V4.05 error with rsync
by craig hobbs 12 Oct '04

12 Oct '04

Hello, I am using stunnel v4.05 with rsync v2.6.0 and solaris9 as both my client and server machine. I am running rsync in daemon mode on the server and starting an rsync transfer on the client. I am getting a frequent error where my rsync client process just appears to hang. On the client side I will receive several 'SSL_read returned WANT_: retrying/SSL_write returned WANT_: retrying' messages back-to-back and then finally the message is always 'Socket closed on read'. Some data does get transferred but it appears from the messages that the socket looses its connection, and the the rsync process just hangs until time-out. Currently in no-blocking mode with the following limits: FD_SETSIZE=1024, file ulimit=2147483647 -> 500 clients allowed Is there any stunnel bug or system resource limit that could be the problem ?? Thanks for the help. ~Craig stunnel.conf file example from client: # Sample stunnel configuration file # Copyright by Michal Trojnara 2002 # Comment it out on Win32 cert = /usr/local/etc/stunnel/stunnel.pem #chroot = /usr/local/var/run/stunnel/ # PID is created inside chroot jail pid = /var/tmp/stunnel.pid #setuid = nobody #setgid = nogroup # Some debugging stuff debug = 7 output = /var/tmp/stunnel.log foreground = yes # Use it for client mode client = yes # Service-level configuration [rsync] accept = 8000 connect = some_host.com:20000 stunnel log file example from client: 2004.10.11 14:44:32 LOG7[26651:7]: rsync started 2004.10.11 14:44:32 LOG5[26651:7]: rsync connected local_host_ip:43586 2004.10.11 14:44:32 LOG7[26651:7]: FD 9 in non-blocking mode 2004.10.11 14:44:32 LOG7[26651:7]: rsync connecting remote_host_ip:20000 2004.10.11 14:44:32 LOG7[26651:7]: remote connect #1: EINPROGRESS: retrying 2004.10.11 14:44:32 LOG7[26651:7]: waitforsocket: FD=9, DIR=write 2004.10.11 14:44:32 LOG7[26651:7]: waitforsocket: ok 2004.10.11 14:44:32 LOG7[26651:7]: Remote FD=9 initialized 2004.10.11 14:44:32 LOG7[26651:7]: SSL state (connect): before/connect initialization 2004.10.11 14:44:32 LOG7[26651:7]: SSL state (connect): SSLv3 write client hello A 2004.10.11 14:44:32 LOG7[26651:7]: waitforsocket: FD=9, DIR=read 2004.10.11 14:44:32 LOG7[26651:7]: waitforsocket: ok 2004.10.11 14:44:32 LOG7[26651:7]: SSL state (connect): SSLv3 read server hello A 2004.10.11 14:44:32 LOG7[26651:7]: SSL state (connect): SSLv3 read finished A 2004.10.11 14:44:32 LOG7[26651:7]: SSL state (connect): SSLv3 write change cipher spec A 2004.10.11 14:44:32 LOG7[26651:7]: SSL state (connect): SSLv3 write finished A 2004.10.11 14:44:32 LOG7[26651:7]: SSL state (connect): SSLv3 flush data 2004.10.11 14:44:32 LOG7[26651:7]: 3 items in the session cache 2004.10.11 14:44:32 LOG7[26651:7]: 6 client connects (SSL_connect()) 2004.10.11 14:44:32 LOG7[26651:7]: 6 client connects that finished 2004.10.11 14:44:32 LOG7[26651:7]: 0 client renegotiatations requested 2004.10.11 14:44:32 LOG7[26651:7]: 0 server connects (SSL_accept()) 2004.10.11 14:44:32 LOG7[26651:7]: 0 server connects that finished 2004.10.11 14:44:32 LOG7[26651:7]: 0 server renegotiatiations requested 2004.10.11 14:44:32 LOG7[26651:7]: 3 session cache hits 2004.10.11 14:44:32 LOG7[26651:7]: 0 session cache misses 2004.10.11 14:44:32 LOG7[26651:7]: 0 session cache timeouts 2004.10.11 14:44:32 LOG6[26651:7]: Negotiated ciphers: AES256-SHA SSLv3 Kx=RSA Au=RSA Enc =AES(256) Mac=SHA1 2004.10.11 14:44:59 LOG7[26651:7]: SSL_write returned WANT_: retrying 2004.10.11 14:44:59 LOG7[26651:7]: SSL_read returned WANT_: retrying 2004.10.11 14:45:06 LOG7[26651:7]: SSL_write returned WANT_: retrying 2004.10.11 14:45:06 LOG7[26651:7]: SSL_read returned WANT_: retrying 2004.10.11 14:45:10 LOG7[26651:7]: SSL_write returned WANT_: retrying 2004.10.11 14:45:10 LOG7[26651:7]: SSL_read returned WANT_: retrying 2004.10.11 14:46:32 LOG7[26651:7]: SSL_write returned WANT_: retrying 2004.10.11 14:46:32 LOG7[26651:7]: SSL socket closed on SSL_read

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connection timeout
by SqM 10 Oct '04

10 Oct '04

Hi! I have an application that itself has the possibility to use a backup server. I.e config of primary and secondary server. I have set up the application to connect to localhost on 2 different ports ( 1000 and 1001 ) and each of the ports are forwarded to a primary and secondary server. When testing this setup i find that if i route packets to the primary server to /dev/null in order for the application to select the secondary server the application seems to be happy since stunnel answers. After aproxx 300 seconds i can see in the log that stunnel gives up and that the application sees this. The appliation then happily selects the secondary server. The question then is if it is possible to make stunnel a little bit faster in giving up.. I.e. perhaps 30 sec instead of 300 sec. I found one setting in the client config that seems to do this but the question is.. Is this the correct way to do it.. I.e. setting "TIMEOUTbusy = 30 seconds" seems to fix my problem but is this the rigth way or is there a better way? /Sqm

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RE: [stunnel-users] RE: stunnel on Solaris 2.6 or 7?
by Garg, Jai V (Jai) 10 Oct '04

10 Oct '04

I have more information. I commented out chroot in the config file and it works. #chroot = /usr/local/var/run/stunnel/ -----Original Message----- From: stunnel-users-bounces(a)mirt.net [mailto:stunnel-users-bounces@mirt.net]On Behalf Of Garg, Jai V (Jai) Sent: Friday, October 08, 2004 6:04 PM To: stunnel-users(a)mirt.net Subject: [stunnel-users] RE: stunnel on Solaris 2.6 or 7? I have more informaton on the problem. It is giving the following error when doing pthread_create() in create_client() open(/dev/zero): No such file or directory libthread panic: alloc_chunk (PID: 8605 LWP 1) stacktrace: ef3c9938 ef3c83e8 ef3c8184 ef3cebf0 ef3cbdf8 ef3cfe80 1ad24 1ba28 1bbb8 13e68 0 -----Original Message----- From: Garg, Jai V (Jai) Sent: Friday, October 08, 2004 3:42 PM To: stunnel-users(a)mirt.net Subject: stunnel on Solaris 2.6 or 7? Hello, Has anyone successfully used stunnel on Solaris 2.6 or Solaris 7? I would appreciate if you can provide the binary. I am using gcc (tried both 3.3.2 and 3.4.2) on 2.6. It compiles, but it seems to hang somewhere after accepting a connection. Here's the log: 2004.10.08 13:05:20 LOG5[21833:1]: stunnel 4.05 on sparc-sun-solaris2.6 PTHREAD with OpenSSL 0.9.7d 17 Mar 20 04 2004.10.08 13:05:20 LOG7[21833:1]: RAND_status claims sufficient entropy for the PRNG 2004.10.08 13:05:20 LOG6[21833:1]: PRNG seeded successfully 2004.10.08 13:05:20 LOG5[21833:1]: FD_SETSIZE=1024, file ulimit=64 -> 29 clients allowed 2004.10.08 13:05:20 LOG7[21833:1]: FD 4 in non-blocking mode 2004.10.08 13:05:20 LOG7[21833:1]: SO_REUSEADDR option set on accept socket 2004.10.08 13:05:20 LOG7[21833:1]: SeS_SOCKS_NJ bound to 0.0.0.0:1373 2004.10.08 13:05:20 LOG7[21833:1]: FD 5 in non-blocking mode 2004.10.08 13:05:20 LOG7[21833:1]: FD 6 in non-blocking mode 2004.10.08 13:05:20 LOG7[21834:1]: Created pid file /stunnel-client.pid 2004.10.08 13:05:25 LOG7[21834:1]: SeS_SOCKS_NJ accepted FD=0 from 155.184.22.17:62844 2004.10.08 13:05:25 LOG7[21834:1]: FD 0 in non-blocking mode I appreciate all help with this. Jai

2 2

NFS over Stunnel
by E SA 09 Oct '04

09 Oct '04

Hi, Is there anbody running NFS over Srunnel? I need to do so for Solaris. Can this be done? Has anybody done it? Any pointers? Beforehand, thank you for your help. Best regards, Erick Sanz _______________________________ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com

3 2

RE: stunnel on Solaris 2.6 or 7?
by Garg, Jai V (Jai) 08 Oct '04

08 Oct '04

I have more informaton on the problem. It is giving the following error when doing pthread_create() in create_client() open(/dev/zero): No such file or directory libthread panic: alloc_chunk (PID: 8605 LWP 1) stacktrace: ef3c9938 ef3c83e8 ef3c8184 ef3cebf0 ef3cbdf8 ef3cfe80 1ad24 1ba28 1bbb8 13e68 0 > -----Original Message----- > From: Garg, Jai V (Jai) > Sent: Friday, October 08, 2004 3:42 PM > To: stunnel-users(a)mirt.net > Subject: stunnel on Solaris 2.6 or 7? > > Hello, > Has anyone successfully used stunnel on Solaris 2.6 or Solaris 7? I would appreciate if you can provide the binary. > I am using gcc (tried both 3.3.2 and 3.4.2) on 2.6. It compiles, but it seems to hang somewhere after accepting a connection. Here's the log: > > 2004.10.08 13:05:20 LOG5[21833:1]: stunnel 4.05 on sparc-sun-solaris2.6 PTHREAD with OpenSSL 0.9.7d 17 Mar 20 > 04 > 2004.10.08 13:05:20 LOG7[21833:1]: RAND_status claims sufficient entropy for the PRNG > 2004.10.08 13:05:20 LOG6[21833:1]: PRNG seeded successfully > 2004.10.08 13:05:20 LOG5[21833:1]: FD_SETSIZE=1024, file ulimit=64 -> 29 clients allowed > 2004.10.08 13:05:20 LOG7[21833:1]: FD 4 in non-blocking mode > 2004.10.08 13:05:20 LOG7[21833:1]: SO_REUSEADDR option set on accept socket > 2004.10.08 13:05:20 LOG7[21833:1]: SeS_SOCKS_NJ bound to 0.0.0.0:1373 > 2004.10.08 13:05:20 LOG7[21833:1]: FD 5 in non-blocking mode > 2004.10.08 13:05:20 LOG7[21833:1]: FD 6 in non-blocking mode > 2004.10.08 13:05:20 LOG7[21834:1]: Created pid file /stunnel-client.pid > 2004.10.08 13:05:25 LOG7[21834:1]: SeS_SOCKS_NJ accepted FD=0 from 155.184.22.17:62844 > 2004.10.08 13:05:25 LOG7[21834:1]: FD 0 in non-blocking mode > > I appreciate all help with this. > > Jai

1 0

stunnel on Solaris 2.6 or 7?
by Garg, Jai V (Jai) 08 Oct '04

08 Oct '04

Hello, Has anyone successfully used stunnel on Solaris 2.6 or Solaris 7? I would appreciate if you can provide the binary. I am using gcc (tried both 3.3.2 and 3.4.2) on 2.6. It compiles, but it seems to hang somewhere after accepting a connection. Here's the log: 2004.10.08 13:05:20 LOG5[21833:1]: stunnel 4.05 on sparc-sun-solaris2.6 PTHREAD with OpenSSL 0.9.7d 17 Mar 20 04 2004.10.08 13:05:20 LOG7[21833:1]: RAND_status claims sufficient entropy for the PRNG 2004.10.08 13:05:20 LOG6[21833:1]: PRNG seeded successfully 2004.10.08 13:05:20 LOG5[21833:1]: FD_SETSIZE=1024, file ulimit=64 -> 29 clients allowed 2004.10.08 13:05:20 LOG7[21833:1]: FD 4 in non-blocking mode 2004.10.08 13:05:20 LOG7[21833:1]: SO_REUSEADDR option set on accept socket 2004.10.08 13:05:20 LOG7[21833:1]: SeS_SOCKS_NJ bound to 0.0.0.0:1373 2004.10.08 13:05:20 LOG7[21833:1]: FD 5 in non-blocking mode 2004.10.08 13:05:20 LOG7[21833:1]: FD 6 in non-blocking mode 2004.10.08 13:05:20 LOG7[21834:1]: Created pid file /stunnel-client.pid 2004.10.08 13:05:25 LOG7[21834:1]: SeS_SOCKS_NJ accepted FD=0 from 155.184.22.17:62844 2004.10.08 13:05:25 LOG7[21834:1]: FD 0 in non-blocking mode I appreciate all help with this. Jai

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Compilation problem of stunnel-4.05 on solaris 9
by Nada Machkova CEI-OI Banska Bystrica 08 Oct '04

08 Oct '04

Hi Didier try to find and set direct path to the ssl/lib before ./configure setenv LD_LIBRARY_PATH /usr/openwin/lib:/usr/dt/lib:/usr/local/lib:/usr/local/ssl/lib ./configure ... Nada

1 0

Stunnel question
by Rick Cone, Secure Payment Systems 06 Oct '04

06 Oct '04

I use Stunnel as a server that connects locally to a port with an application running (called Mlink). The software on that port will only allow 1 connection on the port at a time, not achieving a (true) socket server environment. Does anyone know of a piece of software (like a load balancer) that would accept connections on a specific port (from Stunnel in this case...), and then round-robin connections (or something thereof) to a set of ports? Thanks, Rick Cone Secure Payment Systems 801 8th St. #150-D Greeley, CO 80631 970-352-9434 (office) 970-352-0122 (fax, call office first) rcone(a)securepaymentsystems.com Note: This electronic message and attachments, if any, contain information which is intended solely for the designated recipients. Unauthorized disclosure, copying, distribution, or other use of the contents of this message or attachments, in whole or in part, is prohibited without express authorization of the author of this message.

2 1

Problem running Stunnel
by Robin Martin 06 Oct '04

06 Oct '04

When I run stunnel nothing seems to be happening. The terminal accepts = the command but does nothing. The log file doesn't produce any output = either nor does running stunnel in the foreground. As I understand it, I am trying to wrap my imapd server using stunnel. = Obviously installed imapd, and openssl.=20 In my config file I've got [imaps] accept =3D 993 exec =3D /usr/local/libexec/imapd execargs =3D imapd What is meant to happen when I run stunnel, is there a way that I can = test if it is working. I previously tested imapd using telnet 0 143. I'm = using this=20 http://www.stepwise.com/Articles/Workbench/eart.4.0.html article but its out of date, uses 3.x command line inputs, so I've tried = to convert those to the config file. Thanks, your help is greatly appreciated. Regards, ---- Robin Martin Email: robmar(a)gmail.com

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