[stunnel-users] Help in setting stunnel in server mode to over come TLSV2 compatibility

Josealf.rm josealf at rocketmail.com
Thu Nov 24 10:17:37 CET 2016


Jothish,

Stunnel in server mode is what you need, with 99.9% confidence.

When you write:

[https]
Accept=443
Connect=local host:80
Client=no

Stunnnel will expect TLS connections on port 443 and will forward then to your normal web server running on loopback port 80.

Is that clear?

Regards,
Jose

> El 24/11/2016, a las 2:29 a.m., <jothish.chokkalingam at accenture.com> <jothish.chokkalingam at accenture.com> escribió:
> 
>  
> Is there a way to forward a Secure connection from one port to non secure port using stunnel. I am googling but unable to find. If you have can you let me know
>  
> Thanks and Regards,
> Jothish
> TIBCO TSD
> Ph. : +91 44 39263958
> Mobile : +91 9884040171
> Support : +91 9962007110
> OC : jothish.chokkalingam
> Group mail:- Telstra.psm.tsd.tibco at accenture.com
>  
> From: stunnel-users [mailto:stunnel-users-bounces at stunnel.org] On Behalf Of Carter Browne
> Sent: Wednesday, November 23, 2016 9:30 PM
> To: stunnel-users at stunnel.org
> Subject: Re: [stunnel-users] Help in setting stunnel in server mode to over come TLSV2 compatibility
>  
> There are other tools for performing port forwarding with less overhead (I believe tappipe is one), although I make use stunnel to do this extensively.
> 
> In order forward a secure connection from one port to another is a two step process with stunnel:
> 
> A sample configuration segment would be:
> 
> [SFDC reverse in]
> 
> client = no
> 
> accept = 8008
> 
> connect = localhost:48008
> 
> 
> [SFDC reverse out]
> client = yes
> accept = localhost:48008
> connect = localhost:8009
> 
> On 11/23/2016 10:18 AM, Rodney Lott wrote:
> Hi, there.
> 
> I'm no stunnel expert, but here's my $0.05 (we have no pennies in Canada anymore ;-) ):
> - I would try including the key as well as the cert in your stunnel config
> - I would enable debug on the openssl s_client call to see if it will indicate why it is reseting. Same with your SFDC client to get more info.
> - Question: is the "WARNING: can't open config file" message below indicative of a permissions or path problem? 
> - Question: Is the stunnel cert and key compatible with the TIBCO server's certificate? They need to be using certs generated from the same key source, don't they? 
> - You might want to fix the SSL version in the stunnel config file (i.e. sslVersion = TLSv1.2)
> 
> Good luck with your debugging. 
> 
> Rodney
> 
> On 2016-11-22 07:43 PM, jothish.chokkalingam at accenture.com wrote:
> HI all,
>  
> There is a problem we have currently connecting tibco client to SFDC sever via TLS v1.2 and that’s solved by using stunnel in client mode. And the communication from SFDC client to tibco server applications w.r.t TLS V1.2 I am unable to solve using stunnel. Below is the configuration in stunnel in server end to divert the traffic from 8008 to 8009, can you help here with the logs is the stunnel configuration is correct or there any missed/need to alter.
>  
> [SFDC reverse proxy test]
> debug=7
> ;client = yes
> accept = 8008àport used by sfdc client to connect to TIBCO server
> connect = localhost:8009 àTibco server that’s running
> cert = stunnel.pem
> 2016.11.23 08:31:56 LOG7[118]: Service [SFDC reverse proxy test] started
> 2016.11.23 08:31:56 LOG7[118]: Option TCP_NODELAY set on local socket
> 2016.11.23 08:31:56 LOG5[118]: Service [SFDC reverse proxy test] accepted connection from 101.167.198.14:54477
> 2016.11.23 08:31:56 LOG6[118]: Peer certificate not required
> 2016.11.23 08:31:56 LOG7[118]: SSL state (accept): before/accept initialization
> 2016.11.23 08:31:56 LOG3[118]: SSL_accept: Peer suddenly disconnected
> 2016.11.23 08:31:56 LOG5[118]: Connection reset: 0 byte(s) sent to SSL, 0 byte(s) sent to socket
> 2016.11.23 08:31:56 LOG7[118]: Local descriptor (FD=696) closed
> 2016.11.23 08:31:56 LOG7[118]: Service [SFDC reverse proxy test] finished (0 left)
>  
> PFB the openssl snap shot looks odd
> C:\Program Files (x86)\stunnel\bin>openssl s_client -connect localhost:8008 -prexit -showcerts
> WARNING: can't open config file: /devel/win32/openssl/openssl.cnf
> CONNECTED(0000016C)
>  
> Thanks and Regards,
> Jothish
> TIBCO TSD
> Ph. : +91 44 39263958
> Mobile : +91 9884040171
> Support : +91 9962007110
> OC : jothish.chokkalingam
> Group mail:- Telstra.psm.tsd.tibco at accenture.com
>  
>  
> 
> This message is for the designated recipient only and may contain privileged, proprietary, or otherwise confidential information. If you have received it in error, please notify the sender immediately and delete the original. Any other use of the e-mail by you is prohibited. Where allowed by local law, electronic communications with Accenture and its affiliates, including e-mail and instant messaging (including content), may be scanned by our systems for the purposes of information security and assessment of internal compliance with Accenture policy. 
> ______________________________________________________________________________________
> 
> www.accenture.com
> 
> 
> 
> _______________________________________________
> stunnel-users mailing list
> stunnel-users at stunnel.org
> https://www.stunnel.org/cgi-bin/mailman/listinfo/stunnel-users
> 
> 
> 
> 
> _______________________________________________
> stunnel-users mailing list
> stunnel-users at stunnel.org
> https://www.stunnel.org/cgi-bin/mailman/listinfo/stunnel-users
>  
> _______________________________________________
> stunnel-users mailing list
> stunnel-users at stunnel.org
> https://www.stunnel.org/cgi-bin/mailman/listinfo/stunnel-users
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.stunnel.org/pipermail/stunnel-users/attachments/20161124/a063f3de/attachment.html>


More information about the stunnel-users mailing list