stunnel-users June 2005

stunnel-users@stunnel.org

36 participants
51 discussions

Fix unexpected stunnel-4.10 exits on FreeBSD
by Vasil Dimov 15 Jun '05

15 Jun '05

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The problem has been reported in the stunnel-users mailing list: http://stunnel.mirt.net/pipermail/stunnel-users/2005-May/000482.html http://stunnel.mirt.net/pipermail/stunnel-users/2005-May/000484.html http://stunnel.mirt.net/pipermail/stunnel-users/2005-May/000490.html on freebsd-ports mailing list: http://lists.FreeBSD.org/pipermail/freebsd-ports/2005-May/023344.html and has several FreeBSD problem reports submitted: http://www.FreeBSD.org/cgi/query-pr.cgi?pr=81001 http://www.FreeBSD.org/cgi/query-pr.cgi?pr=81162 http://www.FreeBSD.org/cgi/query-pr.cgi?pr=81289 Patch that fixes this problem can be found here: http://www.FreeBSD.org/cgi/query-pr.cgi?pr=82202 It does not break anything if applied with Linux stunnel, so it can be considered "universal". It will be good if we see this (or similar) fix in the next version of stunnel. The problem is that we cannot (at least on FreeBSD): 1. create context A (cleanup context) 2. create context B and set B's uc_link to point to A 3. swapcontext(3) to B What happens is that B's function returns, A's function passes control to the main thread of execution 4. create context C and set C's uc_link to point to A What happens is that A is exhausted and this will not work as expected 5. swapcontext(3) to C We expect A's function to be executed after C's function returns, but instead exit(3) is called when A's function returns and the whole program terminates normally after serving its second request. -----BEGIN PGP SIGNATURE----- iD8DBQFCrcgJFw6SP/bBpCARAll9AKCPTyMK23v28h8eGKW0LQw7RjrWFgCfWHjR BQEEDOOx/mGG7S38QhqLIW8= =yB1z -----END PGP SIGNATURE-----

3 8

linuxthreads + ucontext = crash
by Michal Trojnara 15 Jun '05

15 Jun '05

Dear Users, It looks like a well known problem: https://listman.redhat.com/archives/phil-list/2003-January/msg00097.html Nice to know. 8-) Best regards, Mike

1 0

Follow up to stunnel w/ zlib not working under windows.
by comsatcat 14 Jun '05

14 Jun '05

Just curious if anyone has stunnel working with zlib compression under windows? Please see my other post titled "Compression (zlib) does not work under windows" for more information. Thanks, Ben

1 0

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

2 2

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

1 0

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

1 0

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

12 Jun '05

2 1

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:dan@langille.org] 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/

2 1

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

2 1

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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stunnel-users June 2005