- stunnel-users - stunnel.org

Re: [stunnel-users] help with stunnell
by Ludolf Holzheid 28 Jul '08

28 Jul '08

On Thu, 2008-07-24 23:37:22 -0700, vinodsreehari(a)yahoo.com wrote: > [..] > > I configured stnnel in one server as server mode ,for accepting > connection on 8070 ,and connect to 80 . It works only if i specify > https://ipaddress:8070 This is because the default port for https is 443. If you'd configure stunnel to accept on port 443, `https://ipaddress' would work. > I have configured one client server also to accept connection on 80 > and redirect to teh 8070 of server. I want to know that is that teh > way its working . If there is a stunnel instance on the client machine accepting connections on port 80 and connecting to the web server at the https port (default or not), a user could specify `http://localhost' to connect to the web server (and the traffic between the client machine and the server would be secured). > And is it possible to implement the same in a live enviroment ,in > which teh webserver will run on different port ,but users dont need > to specify the port number . Yes. As soon as the destination port for the 'first hop' of a redirected/tunneled connection is the default port for the protocol in question, there is no need to specify the port number. The port numbers of 'intermediate hops' are configuration options for the two stunnel instances (in this case), so the user dosn't have to care about them. HTH, Ludolf -- --------------------------------------------------------------- Ludolf Holzheid Tel: +49 621 339960 Bihl+Wiedemann GmbH Fax: +49 621 3392239 Floßwörthstraße 41 e-mail: lholzheid(a)bihl-wiedemann.de D-68199 Mannheim, Germany ---------------------------------------------------------------

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Re: [stunnel-users] Wrong documentation
by Sandeep Kumar 25 Jul '08

25 Jul '08

On Thu, Jul 24, 2008 at 9:39 PM, Brian Hatch <bri(a)stunnel.org> wrote: > In the neigborhood of 2008-07-24 09:40 +0530, Sandeep Kumar mentioned: > > > Look at this page > http://www.stunnel.org/faq/stunnel.html#configuration_file > > In service level options section, under the explanation of "CRLpath" it > is > > said that all files in it should be of the form XXXXXXXX.0. But my > stunnnel > > setup worked only when i names as XXXXXXXX.r0 instead of XXXXXXXX.0. > > What version of openssl are you running? stunnel 4.15 with OpenSSL 0.9.8b > > > > -- > Brian Hatch "Have you asked Kirk if > Systems and he'd like the job?" > Security Engineer "You can't hide from me! > http://www.ifokr.org/bri/ I will find you. > > Every message PGP signed > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.2.1 (GNU/Linux) > > iD8DBQFIiKlFVkMj8/ymYEsRAmKxAJ9CTLp0Xi8n1VxdFup/kBUuZe6scwCfcvyu > WQG8BlfrUV8RcP31/ZUEbJk= > =EBgc > -----END PGP SIGNATURE----- > > -- Sandeep Kumar http://students.iiit.ac.in/~sandeep_kr

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Help on configuring Stunnel
by Patel Dippen-CDP054 24 Jul '08

24 Jul '08

I downloaded the pre-compiled Windows version of Stunnel (stunnel-4.25-installer.exe). We need to deploy this on 2 machines A and B. The way it works is: - B connects to A - then A connects to B How should I configure Stunnel on machine A, since, in the first case A is the Server and in the 2nd scenario A becomes the Client. Questions on deploying Stunnel on machine A: - Can I run just 1 instance of Stunnel on machine A? It seems I cannot since I have to set the "client = yes" in the 2nd scenario - Do I need to run multiple instances, 1 running as the Server and the 2nd as the Client? Here is the config file I used on the machine A: **************************** cert = stunnel.pem socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 [iPerfS] accept = 5010 connect = 127.0.0.1:5001 [iPerfS] accept = 5002 connect = 12.50.0.25:5020 **************************** Here is the config file I used on the machine B: **************************** cert = stunnel.pem socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 [iPerfC] accept = 5001 connect = 12.50.0.26:5010 [iPerfS] accept = 5020 connect = 127.0.0.1:5002 **************************** Regards, Dippen

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Stunnel 4.24 patch to allow stunnel to search for the OCSP responder within an X.509 certificate's AIA extension.
by Bruce Keats 24 Jul '08

24 Jul '08

Hi all, This patch also fixes a problem with stunnel accepting an "unknown" response as "good" and allows the connection to be setup. An OCSP responder can return one of three responses (good, revoked, unknown), however the code would accept "unknown" as good. This patch fixes that problem and treats an "unknown" response as a failure. Stunnel can query an OCSP responder to determine the revocation status of a certificate when stunnel is verifying the certificate. The code works great, however it is uses a preconfigured OCSP responder. The OCSP responder's IP/hostname is specified in the stunnel configuration file as a URI. I found this rather restrictive, so I added code to extract the OCSP responder's URI from the certificate. As per RFC 3280, one of the valid extensions for X.509 certificate is the Authority Information Access (AIA) where the "accessMethod" can be "is-ad-ocsp" to identify the OCSP responders location as per RFC2560. There can be more than one OCSP responder listed in the AIA because it is a sequence. Each location is queried in the order they appear within the certificate until either a "good" or "revoked" response is received. If an "known" response or a failure then the next OCSP responder is checked. If all OCSP responder queries result in failure then the validation also fails.. A new configuration option "OCSPaia" was added. If the "OCSPaia=yes" then the stunnel will look for the OCSP responder(s) within the certificate's AIA. The locally configured "OCSP=<url>" overrides the OCSPaia option. Bruce

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Wrong documentation
by Sandeep Kumar 24 Jul '08

24 Jul '08

Look at this page http://www.stunnel.org/faq/stunnel.html#configuration_file In service level options section, under the explanation of "CRLpath" it is said that all files in it should be of the form XXXXXXXX.0. But my stunnnel setup worked only when i names as XXXXXXXX.r0 instead of XXXXXXXX.0. -- Sandeep Kumar http://students.iiit.ac.in/~sandeep_kr

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help with stunnel port forwarding
by vinod bhasi 23 Jul '08

23 Jul '08

Hi, Please help me with stunnel port forwarding . My apache is running at port 8000 .I want this to be forwarded to 80 so that normal users dont need to specify the port number . Can anyone help me with the configuration in both client and server side .Im confused as stunnel wont run with same port used by apache. Any help will be appreciated Thanks in advancve Vinod Bhasi Did you know? You can CHAT without downloading messenger. Go to http://in.webmessenger.yahoo.com/

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Re: [stunnel-users] stunnel-users Digest, Vol 48, Issue 13
by Patrick Dung 21 Jul '08

21 Jul '08

Message: 3 Date: Mon, 21 Jul 2008 11:34:22 +0200 From: Micha? Trojnara <Michal.Trojnara(a)mobi-com.net> Subject: Re: [stunnel-users] Problem with Solaris 10u5 x86 and Stunnel 4.25 To: stunnel-users(a)mirt.net Message-ID: <2a3f79f5f6dd65f2ced02b2e9929368b(a)mirt.net> Content-Type: text/plain; charset="UTF-8" http://stunnel.mirt.net/pipermail/stunnel-users/2008-June/002021.html Mike On Sat, 19 Jul 2008 01:53:17 -0700 (PDT), Patrick Dung <patrick_dkt(a)yahoo.com.hk> wrote: > Hi > > I use this to compile stunnel: > The gcc and openssl is from Solaris SFW. > > # export CC=/usr/sfw/bin/gcc > # ./configure --with-threads=pthread --with-ssl=/usr/sfw > --localstatedir=/var > > After installing and starting stunnel, I found there are mutiple stunnel > processes. > There is a PID file which store one of the stunnel process. > I have tried to kill that PID, stunnel is bring down. > But there other stunnel processes running. > > Any ideas? > > Regards > Patrick > > > > > _______________________________________________ > stunnel-users mailing list > stunnel-users(a)mirt.net > http://stunnel.mirt.net/mailman/listinfo/stunnel-users I see. Thanks for reply. Yesterday, I have tried to compile stunnel with Sun Studio. It got problem linking with libwrap, so I turned off libwrap support. And it compile (without knowing there is a libwrap patch) and there is only one single running stunnel process. Regards Patrick

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stunnel exits silently on startup
by Luis López de Quintana 21 Jul '08

21 Jul '08

Problem: stunnel doesn't run: ldq@ldq:~$ stunnel4 /etc/stunnel.cnf ldq@ldq:~$ ps aux | grep stunnel ldq 15683 0.0 0.0 2332 1392 pts/0 S+ 11:08 0:00 man stunnel ldq 25289 0.0 0.0 1776 608 pts/1 S+ 11:59 0:00 grep stunnel stunnel.cnf: ldq@ldq:~$ cat /etc/stunnel.cnf client = yes debug = debug [nntps] accept = 127.0.0.1:1109 connect = news.giganews.com:443 Version: stunnel 4.140-5ubuntu1 libc6 ldq@ldq:~$ uname -a Linux ldq 2.6.18.5 SMP Thu May 8 01:31:23 UTC 2008 x86_64 GNU/Linux -- LdQ

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Problem with Solaris 10u5 x86 and Stunnel 4.25
by Patrick Dung 19 Jul '08

19 Jul '08

Hi I use this to compile stunnel: The gcc and openssl is from Solaris SFW. # export CC=/usr/sfw/bin/gcc # ./configure --with-threads=pthread --with-ssl=/usr/sfw --localstatedir=/var After installing and starting stunnel, I found there are mutiple stunnel processes. There is a PID file which store one of the stunnel process. I have tried to kill that PID, stunnel is bring down. But there other stunnel processes running. Any ideas? Regards Patrick

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Config Sanity Check
by Caplan, Michael 19 Jul '08

19 Jul '08

Hi There, I am working through an issue with a script that builds a socket connection to stunnel. Stunnel is being used to relay to an Apache web server. I'm building a localhost TCP connection on port 54322, and writing my HTTP data. When reading data back from the socket connection in my script I'm sometimes getting nothing, and other times getting the proper result. I can confirm that the web server is always receiving the request and returning a proper response. Wireshark shows SSL data being transmitted and received, so stunnel is doing its thing. However, the response does not seem to be relayed to my script on the other side of stunnel *sometimes*. My hunch is that I am doing something wrong with my script, but I am hoping that an stunnel guru can rule out any oddities with my stunnel setup. My config is below as well as the output of my log file. Any thoughts? Thanks! Mike cert = connector.pem debug = 7 output = c:\ssl.log ; Some performance tunings socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 [registerserver] client = yes accept =54321 connect =www.int.ddx.com:443 [connector2server] client = yes accept =54322 connect =asd.int.ddx.com:443 [server2connector] accept = 54323 connect = 9000 2008.07.18 21:41:41 LOG7[13648:13748]: Snagged 64 random bytes from C:/.rnd 2008.07.18 21:41:41 LOG7[13648:13748]: Wrote 1024 new random bytes to C:/.rnd 2008.07.18 21:41:41 LOG7[13648:13748]: RAND_status claims sufficient entropy for the PRNG 2008.07.18 21:41:41 LOG7[13648:13748]: PRNG seeded successfully 2008.07.18 21:41:41 LOG7[13648:13748]: Certificate: connector.pem 2008.07.18 21:41:41 LOG7[13648:13748]: Certificate loaded 2008.07.18 21:41:41 LOG7[13648:13748]: Key file: connector.pem 2008.07.18 21:41:41 LOG7[13648:13748]: Private key loaded 2008.07.18 21:41:41 LOG7[13648:13748]: SSL context initialized for service registerserver 2008.07.18 21:41:41 LOG7[13648:13748]: Certificate: connector.pem 2008.07.18 21:41:41 LOG7[13648:13748]: Certificate loaded 2008.07.18 21:41:41 LOG7[13648:13748]: Key file: connector.pem 2008.07.18 21:41:41 LOG7[13648:13748]: Private key loaded 2008.07.18 21:41:41 LOG7[13648:13748]: SSL context initialized for service connector2server 2008.07.18 21:41:41 LOG7[13648:13748]: Certificate: connector.pem 2008.07.18 21:41:41 LOG7[13648:13748]: Certificate loaded 2008.07.18 21:41:41 LOG7[13648:13748]: Key file: connector.pem 2008.07.18 21:41:41 LOG7[13648:13748]: Private key loaded 2008.07.18 21:41:41 LOG7[13648:13748]: SSL context initialized for service server2connector 2008.07.18 21:41:41 LOG7[13648:13748]: Certificate: connector.pem 2008.07.18 21:41:41 LOG7[13648:13748]: Certificate loaded 2008.07.18 21:41:41 LOG7[13648:13748]: Key file: connector.pem 2008.07.18 21:41:41 LOG7[13648:13748]: Private key loaded 2008.07.18 21:41:41 LOG7[13648:13748]: SSL context initialized for service test 2008.07.18 21:41:41 LOG5[13648:13748]: stunnel 4.25 on x86-pc-mingw32-gnu with OpenSSL 0.9.8h 28 May 2008 2008.07.18 21:41:41 LOG5[13648:13748]: Threading:WIN32 SSL:ENGINE Sockets:SELECT,IPv6 2008.07.18 21:41:46 LOG7[13476:13096]: Snagged 64 random bytes from C:/.rnd 2008.07.18 21:41:47 LOG7[13476:13096]: Wrote 1024 new random bytes to C:/.rnd 2008.07.18 21:41:47 LOG7[13476:13096]: RAND_status claims sufficient entropy for the PRNG 2008.07.18 21:41:47 LOG7[13476:13096]: PRNG seeded successfully 2008.07.18 21:41:47 LOG7[13476:13096]: Certificate: connector.pem 2008.07.18 21:41:47 LOG7[13476:13096]: Certificate loaded 2008.07.18 21:41:47 LOG7[13476:13096]: Key file: connector.pem 2008.07.18 21:41:47 LOG7[13476:13096]: Private key loaded 2008.07.18 21:41:47 LOG7[13476:13096]: SSL context initialized for service registerserver 2008.07.18 21:41:47 LOG7[13476:13096]: Certificate: connector.pem 2008.07.18 21:41:47 LOG7[13476:13096]: Certificate loaded 2008.07.18 21:41:47 LOG7[13476:13096]: Key file: connector.pem 2008.07.18 21:41:47 LOG7[13476:13096]: Private key loaded 2008.07.18 21:41:47 LOG7[13476:13096]: SSL context initialized for service connector2server 2008.07.18 21:41:47 LOG7[13476:13096]: Certificate: connector.pem 2008.07.18 21:41:47 LOG7[13476:13096]: Certificate loaded 2008.07.18 21:41:47 LOG7[13476:13096]: Key file: connector.pem 2008.07.18 21:41:47 LOG7[13476:13096]: Private key loaded 2008.07.18 21:41:47 LOG7[13476:13096]: SSL context initialized for service server2connector 2008.07.18 21:41:47 LOG7[13476:13096]: Certificate: connector.pem 2008.07.18 21:41:47 LOG7[13476:13096]: Certificate loaded 2008.07.18 21:41:47 LOG7[13476:13096]: Key file: connector.pem 2008.07.18 21:41:47 LOG7[13476:13096]: Private key loaded 2008.07.18 21:41:47 LOG7[13476:13096]: SSL context initialized for service test 2008.07.18 21:41:47 LOG5[13476:13096]: stunnel 4.25 on x86-pc-mingw32-gnu with OpenSSL 0.9.8h 28 May 2008 2008.07.18 21:41:47 LOG5[13476:13096]: Threading:WIN32 SSL:ENGINE Sockets:SELECT,IPv6 Please consider the environment before printing this email. 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Difference between verify level 2 and 3
by Sandeep Kumar 16 Jul '08

16 Jul '08

Hi, I searched a lot on google, in the archives, and in the FAQ page, but could not find the differences between verify levels 2 and 3, other than the one line explanation given on the FAQ/man page. Specifically, I want to ask: 1. Is verify level 3 same as 2, but asks for client certificates as well? (Seems unlikely but still..) 2. Since verify level 2 also demands CApath/CAfile to be present, then it also is ultimately verifying against locally installed certs, which is supposed to be level 3's behaviour? Thanks & regards, Sandeep Kumar http://web.iiit.ac.in/~sandeep_kr

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stunnel-portforwarding
by vinod bhasi 16 Jul '08

16 Jul '08

Hi All, I am a newbie as far as stunnel is concerned. I need help urgently on how to do port forwarding with Stunnel. Any help is appreciated. Thanks and Regards, Vinod Bhasi Save all your chat conversations. Find them online at http://in.messenger.yahoo.com/webmessengerpromo.php

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SSL with SMTP problem - sTunnel 4.25 Windows
by dscycler 14 Jul '08

14 Jul '08

I am using sTunnel 4.25 for Windows to send and receive e-mail from a GoldMine client. sTunnel has worked well over the years but am having an issue with a particular mail host, Live Office. They have implemented SMTP SSL on port 25. The debug log is as follows: 2008.07.14 13:45:11 LOG7[2136:5356]: smtp accepted FD=224 from 127.0.0.1:1907 2008.07.14 13:45:11 LOG7[2136:5356]: Creating a new thread 2008.07.14 13:45:11 LOG7[2136:5356]: New thread created 2008.07.14 13:45:11 LOG7[2136:4944]: smtp started 2008.07.14 13:45:11 LOG7[2136:4944]: FD 224 in non-blocking mode 2008.07.14 13:45:11 LOG5[2136:4944]: smtp accepted connection from 127.0.0.1:1907 2008.07.14 13:45:11 LOG7[2136:4944]: FD 232 in non-blocking mode 2008.07.14 13:45:11 LOG7[2136:4944]: smtp connecting 64.70.94.196:25 2008.07.14 13:45:11 LOG7[2136:4944]: connect_wait: waiting 10 seconds 2008.07.14 13:45:11 LOG7[2136:4944]: connect_wait: connected 2008.07.14 13:45:11 LOG5[2136:4944]: smtp connected remote server from 127.0.0.1:1908 2008.07.14 13:45:11 LOG7[2136:4944]: Remote FD=232 initialized 2008.07.14 13:45:11 LOG7[2136:4944]: SSL state (connect): before/connect initialization 2008.07.14 13:45:11 LOG7[2136:4944]: SSL state (connect): SSLv3 write client hello A 2008.07.14 13:45:11 LOG7[2136:4944]: SSL alert (write): fatal: handshake failure 2008.07.14 13:45:11 LOG3[2136:4944]: SSL_connect: 1408F10B: error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number 2008.07.14 13:45:11 LOG5[2136:4944]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2008.07.14 13:45:11 LOG7[2136:4944]: smtp finished (0 left) I am looking for help to troubleshoot the connection problem. Is this an sTunnel issue or a mail server issue? Are there conf file settings to address the issue? Thanks, DavidS

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Re: [stunnel-users] stunnel-users Digest, Vol 48, Issue 8
by Pietro Di Primo 10 Jul '08

10 Jul '08

Thank you for reply. I tryied it but it doesn't work because my client run some separated subprocesses and are them that contact the server so, if an extern process try to connect to 127.0.0.1:<the_found_port> while one of that subprocess has finished and the next is not yet started, it will be able to do it and also my subprocess will be pending (i tryed it). Hope i was able to explain the situation. Any suggestion? Thanks in advace > ---------------------------------------------------------------------- > > Message: 1 > Date: Wed, 9 Jul 2008 13:26:03 +0200 (CEST) > From: "Pietro Di Primo" <pietro.diprimo(a)ct.infn.it> > Subject: [stunnel-users] client-server tunnelling > To: stunnel-users(a)mirt.net > Message-ID: > <2553.193.206.208.201.1215602763.squirrel(a)imapfis.ct.infn.it> > Content-Type: text/plain;charset=utf-8 > > Hi, I have a client server application, and want to tunnel it in this way: > a script select a free port in a random way, write the stunnel.conf file. > with "accept=<the_found_port>" and "connect=<my_server>" and run my client > application passing to 127.0.0.1:<the_found_port> as server address. > The problem is that i need to be sure that no other client or user can > access <the_found_port> while the application is running. > I guess that it should be possible to do it, but i wasn't able to. > > Can anybody help me? > > Thanks > > > -- > --- > > Ing. Pietro Di Primo > INFN - Istituto Nazionale di Fisica Nucleare > Grid Computing Research Area > Via S. Sofia 78 95123 CATANIA (Italy) > Voice : +39 095 378-5446/5517 > Fax. : +39 095 378 5518 > Mobile : +39 320 8591527 > E-mail : pietro.diprimo(a)ct.infn.it > Skype : pietrodiprimo > > > > ------------------------------ > > Message: 2 > Date: Wed, 9 Jul 2008 14:08:23 +0200 > From: Micha? Trojnara <Michal.Trojnara(a)mobi-com.net> > Subject: Re: [stunnel-users] client-server tunnelling > To: stunnel-users(a)mirt.net > Message-ID: <6ba9f1b703149916bb1a61fb68a1e377(a)mirt.net> > Content-Type: text/plain; charset="UTF-8" > > > Pietro Di Primo wrote: >> Hi, I have a client server application, and want to tunnel it in this > way: >> a script select a free port in a random way, write the stunnel.conf >> file. >> with "accept=<the_found_port>" and "connect=<my_server>" and run my > client >> application passing to 127.0.0.1:<the_found_port> as server address. >> The problem is that i need to be sure that no other client or user can >> access <the_found_port> while the application is running. >> I guess that it should be possible to do it, but i wasn't able to. > > Simply bind the specific network interface with: > accept=127.0.0.1:<the_found_port> > > Best regards, > Mike > > > > ------------------------------ > > _______________________________________________ > stunnel-users mailing list > stunnel-users(a)mirt.net > http://stunnel.mirt.net/mailman/listinfo/stunnel-users > > > End of stunnel-users Digest, Vol 48, Issue 8 > ******************************************** > -- --- Ing. Pietro Di Primo INFN - Istituto Nazionale di Fisica Nucleare Grid Computing Research Area Via S. Sofia 78 95123 CATANIA (Italy) Voice : +39 095 378-5446/5517 Fax. : +39 095 378 5518 Mobile : +39 320 8591527 E-mail : pietro.diprimo(a)ct.infn.it Skype : pietrodiprimo

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client-server tunnelling
by Pietro Di Primo 09 Jul '08

09 Jul '08

Hi, I have a client server application, and want to tunnel it in this way: a script select a free port in a random way, write the stunnel.conf file. with "accept=<the_found_port>" and "connect=<my_server>" and run my client application passing to 127.0.0.1:<the_found_port> as server address. The problem is that i need to be sure that no other client or user can access <the_found_port> while the application is running. I guess that it should be possible to do it, but i wasn't able to. Can anybody help me? Thanks -- --- Ing. Pietro Di Primo INFN - Istituto Nazionale di Fisica Nucleare Grid Computing Research Area Via S. Sofia 78 95123 CATANIA (Italy) Voice : +39 095 378-5446/5517 Fax. : +39 095 378 5518 Mobile : +39 320 8591527 E-mail : pietro.diprimo(a)ct.infn.it Skype : pietrodiprimo

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FW: how to start ??
by dominique 07 Jul '08

07 Jul '08

Hello, First time I am using stunnel. 1. The issue I had is with Altiris and Exchange. All our Exchange Servers are SSL now and Altiris is not-SSL. Altiris is reading an exchange mailbox and gives back an error : "Error receiving data from socket". So the infrastructure is composed of two servers one Altiris Server not-SSL which is attempting to communicate to an Exchange Server with SSL. The Altiris Server is trying to read the email in one mailbox hosted by an Exchange SSL Server 2. Stunnel 4.25 x86-pc-mingw32-gnu with openssl 0.9.8h 28 May 2008 3. Windows 2003 Server environment 4. stunnel -d -r 5. 2008.07.07 13:34:41 LOG7[4748:1676]: RAND_status claims sufficient entropy for the PRNG 2008.07.07 13:34:41 LOG7[4748:1676]: PRNG seeded successfully 2008.07.07 13:34:41 LOG7[4748:1676]: Certificate: stunnel.pem 2008.07.07 13:34:41 LOG7[4748:1676]: Certificate loaded 2008.07.07 13:34:41 LOG7[4748:1676]: Key file: stunnel.pem 2008.07.07 13:34:41 LOG7[4748:1676]: Private key loaded 2008.07.07 13:34:41 LOG7[4748:1676]: SSL context initialized for service pop3 2008.07.07 13:34:41 LOG5[4748:1676]: stunnel 4.25 on x86-pc-mingw32-gnu with OpenSSL 0.9.8h 28 May 2008 2008.07.07 13:34:41 LOG5[4748:1676]: Threading:WIN32 SSL:ENGINE Sockets:SELECT,IPv6 2008.07.07 13:34:41 LOG5[4748:3596]: No limit detected for the number of clients 2008.07.07 13:34:41 LOG7[4748:3596]: FD 284 in non-blocking mode 2008.07.07 13:34:41 LOG7[4748:3596]: SO_REUSEADDR option set on accept socket 2008.07.07 13:34:41 LOG3[4748:3596]: Error binding pop3 to 149.142.194.230:995 2008.07.07 13:34:41 LOG3[4748:3596]: bind: Can't assign requested address (WSAEADDRNOTAVAIL) (10049) 2008.07.07 13:34:41 LOG3[4748:3596]: Server is down 6. no file gcc. Thanks, Dominique Dominique_duchemin(a)hotmail.com

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Using externally signed certificate with stunnel 4
by Tim Skirvin 07 Jul '08

07 Jul '08

I've got a comodo signed SSL certificate that I'm trying to use with stunnel4 to allow secure NNTP connections from a wide variety of clients. The certificate at least partially works; if I leave 'verify' off in the stunnel.conf file, then the service runs and users can connect, albeit while still having to verify the cert. But if I turn 'verify' on, then it doesn't work on *either* side. I've tried playing with CAfile and CApath without much luck. I'll attach my configuration files, the relevant pems, and some debugging information; is there something else I'm missing? I've already contacted comodo, and after several rounds of conversation they suggest I contact the list. Errors from the client side (note that I'm using a debug port here): + openssl s_client -connect news:565 -verify -debug verify depth is 0 CONNECTED(00000003) depth=2 /C=US/O=Entrust.net/OU=www.entrust.net/CPS incorp. by ref. (limits liab.)/OU=(c) 1999 Entrust.net Limited/CN=Entrust.net Secure Server Certification Authority verify error:num=19:self signed certificate in certificate chain verify return:0 6976:error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed:s3_clnt.c:951: ...and on the server, I get this: 2008.06.30 14:08:38 LOG7[10039:47679267941088]: nntps accepted FD=7 from 171.64.19.111:56122 2008.06.30 14:08:38 LOG7[10039:1073809760]: nntps started 2008.06.30 14:08:38 LOG7[10039:1073809760]: FD 7 in non-blocking mode 2008.06.30 14:08:38 LOG7[10039:1073809760]: FD 8 in non-blocking mode 2008.06.30 14:08:38 LOG7[10039:1073809760]: FD 9 in non-blocking mode 2008.06.30 14:08:38 LOG7[10039:47679267941088]: Cleaning up the signal pipe 2008.06.30 14:08:38 LOG6[10039:47679267941088]: Child process 10247 finished with code 0 2008.06.30 14:08:38 LOG7[10039:1073809760]: Connection from 171.64.19.111:56122 permitted by libwrap 2008.06.30 14:08:38 LOG5[10039:1073809760]: nntps connected from 171.64.19.111:56122 2008.06.30 14:08:38 LOG7[10039:1073809760]: SSL state (accept): before/accept initialization 2008.06.30 14:08:38 LOG7[10039:1073809760]: SSL state (accept): SSLv3 read client hello A 2008.06.30 14:08:38 LOG7[10039:1073809760]: SSL state (accept): SSLv3 write server hello A 2008.06.30 14:08:38 LOG7[10039:1073809760]: SSL state (accept): SSLv3 write certificate A 2008.06.30 14:08:38 LOG7[10039:1073809760]: SSL state (accept): SSLv3 write certificate request A 2008.06.30 14:08:38 LOG7[10039:1073809760]: SSL state (accept): SSLv3 flush data 2008.06.30 14:08:38 LOG7[10039:1073809760]: SSL alert (read): fatal: unknown CA 2008.06.30 14:08:38 LOG3[10039:1073809760]: SSL_accept: 14094418: error:14094418:SSL routines:SSL3_READ_BYTES:tlsv1 alert unknown ca 2008.06.30 14:08:38 LOG5[10039:1073809760]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2008.06.30 14:08:38 LOG7[10039:1073809760]: nntps finished (0 left) Basic Requested Information that wasn't supplied above: * stunnel 4.18-2 on Debian etch (2.6.18-6-686 #1 SMP) * Running standalone with '/usr/bin/stunnel4 /etc/news/stunnel.conf' * libc6, no gcc, OpenSSL 0.9.8c-4etch3 * The log on startup: 2008.06.30 14:00:15 LOG7[26276:3083523776]: Snagged 64 random bytes from /root/.rnd 2008.06.30 14:00:15 LOG7[26276:3083523776]: Wrote 1024 new random bytes to /root/.rnd 2008.06.30 14:00:15 LOG7[26276:3083523776]: RAND_status claims sufficient entropy for the PRNG 2008.06.30 14:00:15 LOG7[26276:3083523776]: PRNG seeded successfully 2008.06.30 14:00:15 LOG7[26276:3083523776]: Configuration SSL options: 0x01000000 2008.06.30 14:00:15 LOG7[26276:3083523776]: SSL options set: 0x01000000 2008.06.30 14:00:15 LOG7[26276:3083523776]: Certificate: /etc/ssl/certs/news-stunnel.pem 2008.06.30 14:00:15 LOG7[26276:3083523776]: Certificate loaded 2008.06.30 14:00:15 LOG7[26276:3083523776]: Key file: /etc/ssl/private/news-stunnel.key 2008.06.30 14:00:15 LOG7[26276:3083523776]: Private key loaded 2008.06.30 14:00:15 LOG7[26276:3083523776]: Loaded verify certificates from /etc/ssl/certs/comodo.cert 2008.06.30 14:00:15 LOG7[26276:3083523776]: SSL context initialized for service nntps - Tim Skirvin (tskirvin(a)stanford.edu) -- Information Technology Services http://www.stanford.edu/~tskirvin/ System Software Developer, Unix Team Stanford University

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Windows setup
by Koenraad Lelong 04 Jul '08

04 Jul '08

Hello, I would like to know if it is possible to run a silent setup of the Windows-setup of stunnel. I'm including it in my own setup of my own application so I would like to avoid the interaction of the stunnel-setup. Second question is if it is bad to "install" stunnel more than once on a computer. Until now I had a setup for new installations and an update for updates of my application. This seems not to work because some users use the setup to update an existing installation and with this they run the install of stunnel for the second time. If it is bad, how do I detect the existance of stunnel, and what version it is, so I could update stunnel if it's outdated. Regards, Koenraad Lelong. P.S. If this is the wrong list for such questions I apologize. I would like to know the right list.

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Re: [stunnel-users] Stunnel 4.21 99% cpu ultilization
by Fat Wallet 03 Jul '08

03 Jul '08

Hi, If anyone have a clue on what I should do to fix this issue, I would really appreciated: One of the stunnel process is running at 99% and in R state and the time just keep incrementing. [root@root]# ps auxw|grep stunnel root 781 0.0 0.0 6520 2684 ? T 11:01 0:00 /usr/sbin/stunnel /etc/stunnel/stunnel.conf root 2853 0.0 0.0 3940 604 ttyp2 S+ 11:37 0:00 grep stunnel root 16554 0.0 0.0 3992 788 ? S Jul01 0:00 /usr/sbin/stunnel /etc/stunnel/stunnel.conf root 16555 0.0 0.0 3992 788 ? S Jul01 0:00 /usr/sbin/stunnel /etc/stunnel/stunnel.conf root 16556 0.0 0.0 3992 788 ? S Jul01 0:00 /usr/sbin/stunnel /etc/stunnel/stunnel.conf root 16557 0.0 0.0 3992 788 ? S Jul01 0:00 /usr/sbin/stunnel /etc/stunnel/stunnel.conf root 16558 0.0 0.0 3992 788 ? S Jul01 0:00 /usr/sbin/stunnel /etc/stunnel/stunnel.conf root 16561 0.0 0.0 6520 2684 ? Ts Jul01 0:00 /usr/sbin/stunnel /etc/stunnel/stunnel.conf root 16656 0.0 0.0 6520 2684 ? S Jul01 0:00 /usr/sbin/stunnel /etc/stunnel/stunnel.conf root 23954 0.0 0.0 6520 2684 ? S 08:00 0:00 /usr/sbin/stunnel /etc/stunnel/stunnel.conf root 23955 99.0 0.0 6520 2684 ? R 08:00 189:52 /usr/sbin/stunnel /etc/stunnel/stunnel.conf root 31521 0.0 0.0 6520 2684 ? S 10:30 0:00 /usr/sbin/stunnel /etc/stunnel/stunnel.conf Thanks, Mike ----- Original Message ---- From: Aron Griffis <agriffis(a)n01se.net> To: Fat Wallet <fat8wallet(a)yahoo.com> Cc: stunnel-users(a)mirt.net Sent: Monday, June 30, 2008 11:04:44 AM Subject: Re: [stunnel-users] Stunnel 4.21 99% cpu ultilization Fat Wallet wrote: [Mon Jun 30 2008, 01:28:11PM EDT] > Can someone please help with this issue? This 100% cpu > utilization issue happens randomly on multiprocess cpu. strace, ltrace, build stunnel with debugging symbols and attach gdb to the spinning process, etc. Is your name really Fat Wallet?

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protect the private key, while running stunnel in server mode as a windows service
by sandeep siroya 03 Jul '08

03 Jul '08

Hi, I have stunnel in server mode running as a windows service on a Win2003 Server system. I need to give this system to a different company for testing their client against our server. How do I protect my private key on stunnel, while letting the 3rd company being able to login as administrator on stunnel's win2003 system and start/stop stunnel service? I know one can protect the private key with a passphrase in stunnel, but that does not serve my purpose as stunnel in this case should be able to start/stop without any user-intervention and I cannot store the passphrase in cleartext. thanks , ss

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Peer suddenly disconnected
by victor.harutyunyan＠arca.am 02 Jul '08

02 Jul '08

Hello there, I have installed stunnel server on FreeBSD. I configure it like this cert=server_cert.pem key=private\server_key.pem socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 debug = 7 verify=2 CAfile=test_cert.pem [ssl_host_proxy] accept=172.24.150.15:1234 connect=192.168.1.1:10500 TIMEOUTidle=120 Client side is not a computer it's small device. I generate client certificates in this manor: echo off del test_ck.pem /q # delete previous test.ck.pem file echo Starting New test_ck file Generation C:\OpenSSL\bin\openssl.exe req -new -x509 -newkey rsa:2048 -sha1 -out test_cert.pem -keyout test_key.pem -nodes -config sample_ck.cnf -days 1825 -batch C:\OpenSSL\bin\openssl.exe pkcs8 -in test_key.pem -topk8 -out test_pk8.pem -passout pass:"TestPassword0001" -noiter -v1 PBE-SHA1-3DES del test_key.pem /q copy test_cert.pem+test_pk8.pem test_ck.pem /y del test_pk8.pem /q Echo New test_ck.pem file has the following sections: findstr "BEGIN END" test_ck.pem pause test_cert.pem is on a stunnel server as CAfile and test_ck.pem is on my small device which is capable to connect via stunnel. And I generate other self-signed CA, and generate one certificate request and sign it via this CA, and install that key and certificate on server. cert=server_cert.pem key=private\server_key.pem All is working fine, but after one year my server certificate has expired, when I regenerate new server certificate and try to connect, I see in server log this: Child process 6094 finished with code 0 SSL state (accept): before accept initialization SSL state (accept): SSLv3 read client hello A SSL state (accept): SSLv3 write server hello A SSL state (accept): SSLv3 write certificate A SSL state (accept): SSLv3 write server done A SSL state (accept): SSLv3 flush data SSL_accept: Peer suddenly disconnected And my device can't connect to the server, I haven't any client side logs and error messages, only NOT DELIVERED in my device. :( Can you please help me to solve this problem, I am trying many many times, I was very angry.. Thank you very much. Victor Harutyunyan. P.S. Sorry for my bad english.

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Peer suddenly disconnected
by victor.harutyunyan＠arca.am 02 Jul '08

02 Jul '08

Hello there, I have installed stunnel server on FreeBSD. I configure it like this cert=server_cert.pem key=private\server_key.pem socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 debug = 7 verify=2 CAfile=test_cert.pem [ssl_host_proxy] accept=172.24.150.15:1234 connect=192.168.1.1:10500 TIMEOUTidle=120 Client side is not a computer it's small device. I generate client certificates in this manor: echo off del test_ck.pem /q # delete previous test.ck.pem file echo Starting New test_ck file Generation C:\OpenSSL\bin\openssl.exe req -new -x509 -newkey rsa:2048 -sha1 -out test_cert.pem -keyout test_key.pem -nodes -config sample_ck.cnf -days 1825 -batch C:\OpenSSL\bin\openssl.exe pkcs8 -in test_key.pem -topk8 -out test_pk8.pem -passout pass:"TestPassword0001" -noiter -v1 PBE-SHA1-3DES del test_key.pem /q copy test_cert.pem+test_pk8.pem test_ck.pem /y del test_pk8.pem /q Echo New test_ck.pem file has the following sections: findstr "BEGIN END" test_ck.pem pause test_cert.pem is on a stunnel server as CAfile and test_ck.pem is on my small device which is capable to connect via stunnel. And I generate other self-signed CA, and generate one certificate request and sign it via this CA, and install that key and certificate on server. cert=server_cert.pem key=private\server_key.pem All is working fine, but after one year my server certificate has expired, when I regenerate new server certificate and try to connect, I see in server log this: Child process 6094 finished with code 0 SSL state (accept): before accept initialization SSL state (accept): SSLv3 read client hello A SSL state (accept): SSLv3 write server hello A SSL state (accept): SSLv3 write certificate A SSL state (accept): SSLv3 write server done A SSL state (accept): SSLv3 flush data SSL_accept: Peer suddenly disconnected And my device can't connect to the server, I haven't any client side logs and error messages, only NOT DELIVERED in my device. :( Can you please help me to solve this problem, I am trying many many times, I was very angry.. Thank you very much. Victor Harutyunyan. P.S. Sorry for my bad english.

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socket not getting closed
by Manjunath S Karikatti 02 Jul '08

02 Jul '08

Hello, We are using stunnel to wrap the tcp connetion between the our client session used by users and the server process. Due to some reason when client session terminates abruptly (either due to user's PC crash or network outage) the stunnel process does not terminate. We see that the socket on client PC is closed but stunnel process is still alive with socket for that PC in established state. This is on AIX platform. Do not know this is issue with stunnel process or something on AIX needs to be tuned (like the tcp_keepidle value). Thanks for any info and help. Thanks and Regards, Manjunath

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Re: [stunnel-users] Stunnel 4.21 99% cpu ultilization
by Fat Wallet 01 Jul '08

01 Jul '08

Thanks for your reply. I was hoping to see if someone have a similar issue since there was an issue with stunnel 4.20 version. Thanks, Mike ----- Original Message ---- From: Aron Griffis <agriffis(a)n01se.net> To: Fat Wallet <fat8wallet(a)yahoo.com> Cc: stunnel-users(a)mirt.net Sent: Monday, June 30, 2008 11:04:44 AM Subject: Re: [stunnel-users] Stunnel 4.21 99% cpu ultilization Fat Wallet wrote: [Mon Jun 30 2008, 01:28:11PM EDT] > Can someone please help with this issue? This 100% cpu > utilization issue happens randomly on multiprocess cpu. strace, ltrace, build stunnel with debugging symbols and attach gdb to the spinning process, etc. Is your name really Fat Wallet?

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Stunnel v4.25 vs v4.20
by James Moe 30 Jun '08

30 Jun '08

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, I upgraded to v4.25 and stunnel aborts right away. v4.20 works just fine. What is protocol family 47? ====[ log file ]==== 2008.06.26 11:31:01 LOG5[282:8553]: stunnel 4.25 on i386-pc-os2-emx with OpenSSL 0.9.8h 28 May 2008 2008.06.26 11:31:01 LOG5[282:8553]: Threading: SSL:ENGINE Sockets:SELECT,IPv4 2008.06.26 11:31:01 LOG3[282:8553]: Error binding pop3.sma.com_L110-R995 to 127.0.0.1:110 2008.06.26 11:31:01 LOG3[282:8553]: bind: Address family not supported by protocol family (47) ====[ conf file ]==== socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 client = yes output = G:/c/voice/pmmdev/testcase/bin/stunnel.log verify = 0 debug = 5 cert = g:/c/voice/pmmdev/testcase/bin/sma-test.pem [pop3.sma.com_L110-R995] accept = localhost:110 connect = pop3.sma.com:995 ;# protocol = pop3 [smtpauth.earthlink.net_L6025-R587] accept = localhost:6025 connect = smtpauth.earthlink.net:587 protocol = smtp [sohnen-moe.com:L6125:R587] accept = localhost:6125 connect = sohnen-moe.com:587 protocol = smtp [smtp.sma.com_L25-R587] accept = localhost:25 connect = smtp.sma.com:587 protocol = smtp - -- jimoe (at) sohnen-moe (dot) com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (OS/2) iD8DBQFIY+DkzTcr8Prq0ZMRArW+AJ4uOJFOGyluIj52DG4cM62jMPs8NACfbug2 oVsLAXJ+fH1Raj568dGn2mM= =JSCM -----END PGP SIGNATURE-----

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