stunnel-users

2 participants
3307 discussions

Setting up Stunnel on Server AND Clients
by Peter Pentes 14 Jun '05

14 Jun '05

G'Day all, I'm having trouble understanding how to incorporate Stunnel into a client/server environment. There is a application running on the server which receives and sends data to various clients. The clients also have a communications application running. None of the apps (on both server and clients) support any form of encryption. So I want to use Stunnel for this. How would I set Stunnel up on the server and also the clients? I can't find an example on stunnel.org that discusses such a scenario. Any help would be great. Cheers. Peter __________________________________ Yahoo! Mail Stay connected, organized, and protected. Take the tour: http://tour.mail.yahoo.com/mailtour.html

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Registering other dlls after running Stunnel
by andym＠rhotrading.com 13 Jun '05

13 Jun '05

I'm having a problem registering other dlls that depend on tibco and ws2_32. I could register them fine prior to putting stunnel on and now they are problematic. Trying regsvr32 returns nothing; not an error or a success. I can successfully install and uninstall this same dll on a different system that does not have Stunnel on it. Windows platform (XP). Has anyone else run into behavior like this and/or does anyone have any suggestions to troubleshoot. I've verified that the dll is not being registered silently by searching the registry. I spoke with a developer who said that Stunnel might be hooking in on my dlls registry attempt and causing it to blow up. Any thoughts? Thank you, Andy

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How to Remove Stunnel From Start-Up?
by mhrtmhd94＠att.net 13 Jun '05

13 Jun '05

I have finally been able to delete and successfully re-install Stunnel, which I am using in conjunction with Agent. There are still some problems, which I think are more related to Agent, and I am consulting with Agent tech support. However, there is one problem with Stunnel. It starts when I boot into Windows (XP SP2). I did not intend for Stunnel to run except when I launch it along with Agent. How can I remove it from Start-Up? Stunnel DOES NOT appear under the Start-up tab when I run msconfig. If it is necessary to uninstall Stunnel and reinstall it, is there a convenient way of doing so? I had a helluva time doing this and eventually was able to accomplish it by deleting as many Stunnel entries as I could from the registry. Thanks. Mort Middleman

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Stunnel and Gmail: 'Server is down' error
by John Latter 12 Jun '05

12 Jun '05

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RE: [stunnel-users] stunnel on HP-UX
by Stephen Tanner 12 Jun '05

12 Jun '05

The PRNG in HP-UX does not start until rc3. The normal place for syslog to start is in rc2, so I had placed stunnel and syslog-ng in rc2 for startup. I simply moved the startup script for PRNG to rc2. -----Original Message----- From: Dan Langille [mailto:[email protected]] Sent: Friday, June 10, 2005 10:08 AM To: Stephen Tanner Cc: stunnel-users(a)mirt.net Subject: RE: [stunnel-users] stunnel on HP-UX On 10 Jun 2005 at 10:04, Stephen Tanner wrote: > Please disregard, I have located the issue. And it was solved how? -- Dan Langille : http://www.langille.org/ BSDCan - The Technical BSD Conference - http://www.bsdcan.org/

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Stunnel --- communication + encryption in both directions
by Paul Jones 12 Jun '05

12 Jun '05

Hi, I am interested in using Stunnel, but I am a little confused currently. The "Forwarding an insecure port securely from one machine to another" (http://www.stunnel.org/examples/generic_tunnel.html) example only discusses the situation for sending data from the server to the client (i.e. a single direction). How would stunnel have to be set up so that encrypted communication is achieve in both directions? That is, from server to client and also from client to server? Imagine that there is an application running on one end, and an identical app running on the other end and neither supports encryption. So I want to bring stunnel into the picture, so that communication is encrypted/decrypted on both ends. Cheers. Paul _________________________________________________________________ Free wallpapers on Level 9 http://level9.ninemsn.com.au/default.aspx

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configure fails when cross compiling
by Paul Kramer 10 Jun '05

10 Jun '05

Hi Folks, I'm trying to run configure to cross compile, my host machine is linux and my target is mips hardard (mvista) I get the following configure errors: checking for /dev/ptmx and /dev/ptc cannnot check for file existence when cross compiling I poked around in the configure.ac and see there these are defined. What is the purpose for checking for the existence of this files? And... what flags should I be providing to configure? Thanks! Kramer

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RE: [stunnel-users] stunnel on HP-UX
by Stephen Tanner 10 Jun '05

10 Jun '05

Please disregard, I have located the issue. -----Original Message----- From: stunnel-users-bounces(a)mirt.net [mailto:[email protected]] On Behalf Of Stephen Tanner Sent: Friday, June 10, 2005 9:50 AM To: stunnel-users(a)mirt.net Subject: RE: [stunnel-users] stunnel on HP-UX This is what I am getting from stunnel when it starts: 2005.06.09 16:14:36 LOG5[1409:1]: stunnel 4.08 on hppa2.0w-hp-hpux11.11 PTHREAD+POLL+IPv4 with OpenSSL 0.9.7e 25 Oct 2004 2005.06.09 16:14:37 LOG4[1409:1]: PRNG may not have been seeded with enough random bytes 2005.06.09 16:14:37 LOG5[1409:1]: 27 clients allowed 2005.06.09 16:14:37 LOG5[1410:2]: 5140 connected from 127.0.0.1:49153 2005.06.09 16:14:37 LOG3[1410:2]: SSL_connect: Peer suddenly disconnected 2005.06.09 16:14:47 LOG5[1410:3]: 5140 connected from 127.0.0.1:49156 2005.06.09 16:14:47 LOG3[1410:3]: SSL_connect: Peer suddenly disconnected If I restart stunnel it establishes the connection fine, and does not receive the PRNG error. What can I do to generate enough random bytes to get this running properly, without starting stunnel later in the boot process? -----Original Message----- From: Stephen Tanner Sent: Tuesday, June 07, 2005 8:36 AM To: 'Jan Meijer' Subject: RE: [stunnel-users] stunnel on HP-UX Negative, the private key is not protected with a passphrase. If I use the startup script to start stunnel and syslog-ng manually, everything works. But on boot stunnel does not seem to properly establish a connection, and I must stop it and restart it to resolve the issue. Stephen -----Original Message----- From: Jan Meijer [mailto:[email protected]] Sent: Tuesday, June 07, 2005 3:08 AM To: Stephen Tanner Cc: stunnel-users(a)mirt.net Subject: Re: [stunnel-users] stunnel on HP-UX On Tue, 31 May 2005, Stephen Tanner wrote: > I'm running stunnel on a HP-UX 11.11 system so that I can securely > transfer logs with syslog-ng. I have stunnel and syslog-ng both > starting in rc2.d at S537. Every time I have rebooted the server I get > a broken pipe as if stunnel is having an issue establishing a tunnel, > and I am forced to restart stunnel and syslog-ng. Are there any > specific daemons that need to be running before stunnel starts? I'm > trying to avoid having this start too late, so that I don't miss logs on > some daemons. There are no specific daemons that need to run. Network is practical for DNS resolving if that's needed. To rule out the obvious: you would not have protected your stunnel private key with a passphrase would you? Jan -- http://www.surfnet.nl/organisatie/jame _______________________________________________ stunnel-users mailing list stunnel-users(a)mirt.net http://stunnel.mirt.net/mailman/listinfo/stunnel-users _______________________________________________ stunnel-users mailing list stunnel-users(a)mirt.net http://stunnel.mirt.net/mailman/listinfo/stunnel-users

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RE: [stunnel-users] stunnel on HP-UX
by Stephen Tanner 10 Jun '05

10 Jun '05

This is what I am getting from stunnel when it starts: 2005.06.09 16:14:36 LOG5[1409:1]: stunnel 4.08 on hppa2.0w-hp-hpux11.11 PTHREAD+POLL+IPv4 with OpenSSL 0.9.7e 25 Oct 2004 2005.06.09 16:14:37 LOG4[1409:1]: PRNG may not have been seeded with enough random bytes 2005.06.09 16:14:37 LOG5[1409:1]: 27 clients allowed 2005.06.09 16:14:37 LOG5[1410:2]: 5140 connected from 127.0.0.1:49153 2005.06.09 16:14:37 LOG3[1410:2]: SSL_connect: Peer suddenly disconnected 2005.06.09 16:14:47 LOG5[1410:3]: 5140 connected from 127.0.0.1:49156 2005.06.09 16:14:47 LOG3[1410:3]: SSL_connect: Peer suddenly disconnected If I restart stunnel it establishes the connection fine, and does not receive the PRNG error. What can I do to generate enough random bytes to get this running properly, without starting stunnel later in the boot process? -----Original Message----- From: Stephen Tanner Sent: Tuesday, June 07, 2005 8:36 AM To: 'Jan Meijer' Subject: RE: [stunnel-users] stunnel on HP-UX Negative, the private key is not protected with a passphrase. If I use the startup script to start stunnel and syslog-ng manually, everything works. But on boot stunnel does not seem to properly establish a connection, and I must stop it and restart it to resolve the issue. Stephen -----Original Message----- From: Jan Meijer [mailto:[email protected]] Sent: Tuesday, June 07, 2005 3:08 AM To: Stephen Tanner Cc: stunnel-users(a)mirt.net Subject: Re: [stunnel-users] stunnel on HP-UX On Tue, 31 May 2005, Stephen Tanner wrote: > I'm running stunnel on a HP-UX 11.11 system so that I can securely > transfer logs with syslog-ng. I have stunnel and syslog-ng both > starting in rc2.d at S537. Every time I have rebooted the server I get > a broken pipe as if stunnel is having an issue establishing a tunnel, > and I am forced to restart stunnel and syslog-ng. Are there any > specific daemons that need to be running before stunnel starts? I'm > trying to avoid having this start too late, so that I don't miss logs on > some daemons. There are no specific daemons that need to run. Network is practical for DNS resolving if that's needed. To rule out the obvious: you would not have protected your stunnel private key with a passphrase would you? Jan -- http://www.surfnet.nl/organisatie/jame _______________________________________________ stunnel-users mailing list stunnel-users(a)mirt.net http://stunnel.mirt.net/mailman/listinfo/stunnel-users

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Compression (zlib) does not work under windows
by Ben 09 Jun '05

09 Jun '05

Hello, Enabling zlib compression in stunnel (versions 4.06 - 4.10) does not work under windows. I have tried a combination of the following, all of which have failed in either two ways. The first way being disconnection with the following messages in the stunnel console: 2005.06.09 11:43:10 LOG7[4072:3088]: SSL alert (write): fatal: decompression failure 2005.06.09 11:43:10 LOG3[4072:3088]: SSL_read: 1408F06B: error:1408F06B:SSL routines:SSL3_GET_RECORD:bad decompression Or stunnel crashes all together. Here are the following combinations I've used with stunnel and openssl. stunnel 4.06 w/ all zlib binary openssl libraries stunnel 4.07 w/ all zlib binary enabled openssl libraries stunnel 4.08 w/ all zlib binary enabled openssl libraries stunnel 4.09 w/ all zlib enabled openssl libraries stunnel 4.10 w/ all zlib enabled openssl libraries stunnel 4.06 w/ custom compiled openssl 0.9.7g w/ zlib library under vc++ stunnel 4.07 w/ custom compiled openssl 0.9.7g w/ zlib library under vc++ stunnel 4.08 w/ custom compiled openssl 0.9.7g w/ zlib library under vc++ stunnel 4.09 w/ custom compiled openssl 0.9.7g w/ zlib library under vc++ stunnel 4.10 w/ custom compiled openssl 0.9.7g w/ zlib library under vc++ Under linux, using stunnel as a client, compression works correctly. On the server I have tried stunnel versions: stunnel 4.06 w/ zlib openssl 0.9.7g and openssl 0.9.7f stunnel 4.09 w/ zlib openssl 0.9.7g and openssl 0.9.7f stunnel 4.10 w/ zlib openssl 0.9.7g and openssl 0.9.7f Any help would be appreciated. We offer stunnel connections as a service to our clients to reduce the overhead of NNTP traffic and we would very much like to get compression working. Thanks for your time, Ben

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