- stunnel-users - stunnel.org

1 tunnel client to few different servers
by Shalvi Ziv 26 Dec '07

26 Dec '07

All, As my PROXY server gets requests from end-users to be proxied to several different content providers (SMS servers), I was wondering how can encrypt the traffic between the PROXY to the SMS using stunnel, but still handle the differentiation to the various content providers. Meaning, my PROXY listens on port 9090 for all incoming SMS requests and each request should be addressed to different SMS server (i.e. different content provider) based on the number the message was sent to. See following example: Client = yes [SMPP] accept = 9090 (should always be this port) connect = <SMS IP>:442 Now, how can I do it with stunnel configuration (having the <SMS IP> flexibly assigned according to other parameters in the packet)? Thanks! zivs

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Can stunnel be configured to listen for multiple IP addresses and access different email hosts?
by David Goldstein 21 Dec '07

21 Dec '07

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Using stunnel as a non-root user
by T. S. Ferreira 20 Dec '07

20 Dec '07

I have a small web application running as a regular (non root) user on my port 6666. I would like to make it accessible through SSL on port 7777. In order to test it I used (as the same non root user) the following command: stunnel -D 7 -p mypemfile.pem -d 7777 -r localhost:6666 but it does not work. When I check with "ps aux | fgrep stunnel", no such program is running. However if I run it as root, it does work. I did not find in the documentation any restriction with this regard. Since my final application will run on a machine to whose root I do not have access, I would like to find a way to solve this problem. Any hint will be appreciated. -- tsf ----------------------------------------- My system data are: (1) Linux/Ubuntu 7.10, kernel 2.6.22-14-generic, (2) Output of "/usr/bin/stunnel4 -version": stunnel 4.20 on i486-pc-linux-gnu with OpenSSL 0.9.8e 23 Feb 2007 Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv6 Auth:LIBWRAP Global options debug = 5 pid = /var/run/stunnel4.pid RNDbytes = 64 RNDfile = /dev/urandom RNDoverwrite = yes Service-level options cert = /etc/stunnel/stunnel.pem ciphers = ALL:!ADH:+RC4:@STRENGTH key = /etc/stunnel/stunnel.pem session = 300 seconds sslVersion = SSLv3 for client, all for server TIMEOUTbusy = 300 seconds TIMEOUTclose = 60 seconds TIMEOUTconnect = 10 seconds TIMEOUTidle = 43200 seconds verify = none (3) Output due to '-D 7' option: 2007.12.20 10:00:45 LOG7[14820:3082589872]: Snagged 64 random bytes from /home/tomasz/.rnd 2007.12.20 10:00:45 LOG7[14820:3082589872]: Wrote 1024 new random bytes to /home/tomasz/.rnd 2007.12.20 10:00:45 LOG7[14820:3082589872]: RAND_status claims sufficient entropy for the PRNG 2007.12.20 10:00:45 LOG7[14820:3082589872]: PRNG seeded successfully 2007.12.20 10:00:45 LOG7[14820:3082589872]: Certificate: jai_ssl.pem 2007.12.20 10:00:45 LOG7[14820:3082589872]: Certificate loaded 2007.12.20 10:00:45 LOG7[14820:3082589872]: Key file: jai_ssl.pem 2007.12.20 10:00:45 LOG7[14820:3082589872]: Private key loaded 2007.12.20 10:00:45 LOG7[14820:3082589872]: SSL context initialized for service stunnel3 (4)"/usr/bin/stunnel" is a Perl script whose comments say " ... wrapper to use stunnel 3.x syntax in stunnel >=4.05 ..."; it is version 2.00 (2005.04.2).

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Stunnel never really connects
by Pat Riehecky 20 Dec '07

20 Dec '07

I am trying to send email over stunnel from a client that doesn't support encryption to a server that does. The local socket opens just fine, but it never really seems to connect to the remote server. A tcpdump shows only three packets exchanged between the two systems (Syn, Syn/Ack, Ack). The behavior is the same regardless of which tls enabled port I point stunnel at. I am able to connect to these ports via telnet and send email so I know the connection can be negotiated. I am using the 4.21 build for windows (XP SP2) found on the main webpage. Help! --- stunnel.conf --- ; Some performance tunings socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ; Workaround for Eudora bug ; my email client isn't eudora, but given how ; it doesn't support standards like encrypted ; transport..... options = DONT_INSERT_EMPTY_FRAGMENTS ; Some debugging stuff useful for troubleshooting debug = 7 ; Use it for client mode client = yes [smtp] accept = 127.0.0.1:25 connect = mailserver.mydomain.tld:587 ;connect = mailserver.mydomain.tld:465 ;connect = mailserver.mydomain.tld:25 protocol = smtp

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'PIN' engine control command
by Ludolf Holzheid 14 Dec '07

14 Dec '07

Dear list, I'm trying to use stunnel on Windows with an USB token (`CryptoMate' from ACS). However, I can't manage to make stunnel ask for the token PIN: o Loading the private key works if I specify the PIN in the configuration file (`engineCtrl = PIN:...'). o If there is no `PIN' engine control option in the configuration file, loading the private key fails. The log message are: error stack: 26096080 : error:26096080:engine routines:ENGINE_load_private_key:failed loading private key error stack: 800050A0 : error:800050A0:Vendor defined:PKCS11_login:PIN incorrect Do I have to add a special engine control option to the configuration file in order to get asked for the PIN or is it intended to `just work'? 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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rtmps with stunnel on linux
by David Schulberg 14 Dec '07

14 Dec '07

Hi, Cannot get rtmps working with Firefox (IceWeasel) on Linux. I have rtmps working fine with Firefox and IE on Windows XP. The error I see in stunnel (see below) when I try rtmps through a Linux browser is "peer suddenly disconnected". Also curious that there are 2 attempts made. 2007.12.13 16:31:41 LOG7[2624:1192]: https accepted FD=212 from 124.190.241.7:59728 2007.12.13 16:31:41 LOG7[2624:1192]: Creating a new thread 2007.12.13 16:31:41 LOG7[2624:1192]: New thread created 2007.12.13 16:31:41 LOG7[2624:2576]: https started 2007.12.13 16:31:41 LOG7[2624:2576]: FD 212 in non-blocking mode 2007.12.13 16:31:41 LOG7[2624:2576]: TCP_NODELAY option set on local socket 2007.12.13 16:31:41 LOG5[2624:2576]: https accepted connection from 124.190.241.7:59728 2007.12.13 16:31:41 LOG7[2624:2576]: SSL state (accept): before/accept initialization 2007.12.13 16:31:41 LOG3[2624:2576]: SSL_accept: Peer suddenly disconnected 2007.12.13 16:31:41 LOG5[2624:2576]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2007.12.13 16:31:41 LOG7[2624:2576]: https finished (0 left) 2007.12.13 16:31:41 LOG7[2624:1192]: https accepted FD=236 from 124.190.241.7:59729 2007.12.13 16:31:41 LOG7[2624:1192]: Creating a new thread 2007.12.13 16:31:41 LOG7[2624:1192]: New thread created 2007.12.13 16:31:41 LOG7[2624:2572]: https started 2007.12.13 16:31:41 LOG7[2624:2572]: FD 236 in non-blocking mode 2007.12.13 16:31:41 LOG7[2624:2572]: TCP_NODELAY option set on local socket 2007.12.13 16:31:41 LOG5[2624:2572]: https accepted connection from 124.190.241.7:59729 2007.12.13 16:31:41 LOG7[2624:2572]: SSL state (accept): before/accept initialization 2007.12.13 16:31:41 LOG3[2624:2572]: SSL_accept: Peer suddenly disconnected 2007.12.13 16:31:41 LOG5[2624:2572]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket 2007.12.13 16:31:41 LOG7[2624:2572]: https finished (0 left) Regards, David Schulberg

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Re: [stunnel-users] * lencoboy Stunnel client and Centos 5 Apache
by Luis Rodrigo Gallardo Cruz 12 Dec '07

12 Dec '07

[Again, please send your responses to the list.] On Wed, Dec 12, 2007 at 06:18:58PM +0000, Mario Neè wrote: > > On Wed, Dec 12, 2007 at 05:00:08PM +0000, Mario Neè wrote: > > > > From: rodrigo(a)nul-unu.com > > > > This takes what is sent to local port 1443, encrypts it, and sends it > > > > like that to the remote 192.168.x.x:443 This means that the remote > > > > Apache needs to be listening on port 443 with ssl enabled there. Is > > > > this what you wanted? > > > > > > yes it's what i want. > > > > > > > Ok. Then I'd guess the problem is that apache is not expecting SSL on > > port 443. Read up on how to enable it. I'd guess a good start is > > http://httpd.apache.org/docs/2.0/mod/mod_ssl.html > > > if i try to connect to 192.168.x.x:443 with firefox everything > works, only with stunnel i get that error Do you try to connect with http://192.168.x.x:443 or with https://192.168.x.x:443 (note the 's')? -- Rodrigo Gallardo GPG-Fingerprint: 7C81 E60C 442E 8FBC D975 2F49 0199 8318 ADC9 BC28

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Re: [stunnel-users] * lencoboy Stunnel client and Centos 5 Apache
by Luis Rodrigo Gallardo Cruz 12 Dec '07

12 Dec '07

[Please, respond to the list, not to the private mail of whoever answers you.] On Wed, Dec 12, 2007 at 05:00:08PM +0000, Mario Neè wrote: > > From: rodrigo(a)nul-unu.com > > On Wed, Dec 12, 2007 at 09:36:35AM +0000, Mario Neè wrote: > > > i'm trying to connect a stunnel client to the welcome page of Apache > > > in Centos 5 (Fresh install with no changes to Apache conf). > > > > > > command to create a client (on Feisty Fawn Ubuntu): > > > sudo stunnel -c -d 1443 -r 192.168.x.x:443 > > > > This takes what is sent to local port 1443, encrypts it, and sends it > > like that to the remote 192.168.x.x:443 This means that the remote > > Apache needs to be listening on port 443 with ssl enabled there. Is > > this what you wanted? > > yes it's what i want. > Ok. Then I'd guess the problem is that apache is not expecting SSL on port 443. Read up on how to enable it. I'd guess a good start is http://httpd.apache.org/docs/2.0/mod/mod_ssl.html -- Rodrigo Gallardo GPG-Fingerprint: 7C81 E60C 442E 8FBC D975 2F49 0199 8318 ADC9 BC28

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newbie config not running
by fuzzy_4711 12 Dec '07

12 Dec '07

Hello list. I am new to stunnel and do have some problems to get it running. The server is a WinXPSP2 behind a router. The router has port forwarding enabled for port 9999 to the stunnel server (4.21). On the same box a vnc server is running on port 5900 which I like to tunnel. Firewall is opened. The netstat -a -n shows the server listening on the desired port (9999). My server config looks like that: cert = stunnel.pem ;key = stunnel.pem ; Some performance tunings socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 ; Workaround for Eudora bug ;options = DONT_INSERT_EMPTY_FRAGMENTS ; Authentication stuff ;verify = 2 ; Don't forget to c_rehash CApath ;CApath = certs ; It's often easier to use CAfile ;CAfile = certs.pem ; Don't forget to c_rehash CRLpath ;CRLpath = crls ; Alternatively you can use CRLfile ;CRLfile = crls.pem ; Some debugging stuff useful for troubleshooting ;debug = 7 ;output = stunnel.log ; Use it for client mode ;client = yes [pop3s] accept = 995 connect = 110 [imaps] accept = 993 connect = 143 [ssmtp] accept = 465 connect = 25 [VNC Server] accept = 9999 connect = 5900 The client side is a linux box with config setting: client = yes [VNC Server] accept = 5900 connect = 9999 I turned on debugging and stunnel.log seems to be okay - no error messages. But I am not able to get an connection. What am I doing wrong? Stefan

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* lencoboy Stunnel client and Centos 5 Apache
by Mario Neè 12 Dec '07

12 Dec '07

Hello, i'm trying to connect a stunnel client to the welcome page of Apache in Centos 5 (Fresh install with no changes to Apache conf). command to create a client (on Feisty Fawn Ubuntu): sudo stunnel -c -d 1443 -r 192.168.x.x:443 if i try to connect to http://localhost:1443 and a look in /var/log/syslog i see this error: SSL_connect: error:1408F06B:SSL routines:SSL3_GET_RECORD:bad decompression. _________________________________________________________________ Ti piace giocare con le lettere? Prova ABCLive! http://messengergiochi.it.msn.com/

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