stunnel-users

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3308 discussions

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:[email protected]]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

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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

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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

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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

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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.

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Problem running Stunnel
by Robin Martin 05 Oct '04

05 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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stunnel dies on win32 - Try again with out HTML
by Richard Whiffen 05 Oct '04

05 Oct '04

We have a problem where stunnel dies on our Win32 boxes when we attempt load tests: 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 When we had one stunnel.cnf for all services it would crash almost imediately (less than a minute after starting the load). When we created separate processes for each target server it lasts longer, 5 to 10 minutes, but still dies. The frustrating part is we get no indications in the log files of what's going on. It dies in seemingly random spots. The last log entry is never the same and there's nothing in the cmd window that launched it to indicate what happened. The conf is fairly simple: #script test conf cert = \stunnel\ohetestisg1.pem Cafile = \stunnel\css-ca-cert.pem CApath = \stunnel\certs output = \stunnel\stunnel-media.log #verify = 3 client = yes debug = 7 [**mediaserver] accept = 127.0.0.3:80 connect = 10.162.130.26:444 TIMEOUTclose = 0 We're connecting to a Cisco Content Server Switch if that helps. So I'm wondering where to go next. Any ideas on how to troubleshoot this? Rich Whiffen _________________________________________________________________ Check out Election 2004 for up-to-date election news, plus voter tools and more! http://special.msn.com/msn/election2004.armx

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