Redirecting communication to a server over a tunnel?

Wcool · 27-08-2012 02:12PM #1

Hi all,

At my work all main ports are blocked, both incoming and outgoing.
I have a fat client windows program that communicates to its server on port 9999, but this port is blocked. I am able to create a secure tunnel over SSH to my home server and for instance redirect my HTTP traffic.

But is there a way I can route the traffic for port 9999 for a specific IP address over the tunnel?

Presumeably the windows application internally will do a DNS lookup to retrieve the current IP address of the server i.e. the ip address of the server is not hard coded.

Will creating a tunnel for port 9999 and adding the DNS name as 127.0.0.1 in the hosts file work? Or should I just redirect all 9999 traffic (not a problem now I come to think about it)

In short: how do I redirect traffic for address [url]www.servername.com:9999[/url] to my SSH tunnel?

Thanks

wandererz · 28-08-2012 04:31PM

http://www.cs.uu.nl/technical/services/ssh/putty/puttyfw.html

Wcool · 28-08-2012 04:39PM

I use SSH already for instance to route VNC. But I think I now know what I do wrong. The proxy that I use is Polipo which is a web proxy, not a universal proxy. I need to setup another proxy program on my home server.

wandererz · 28-08-2012 05:05PM

aha, i think i see the problem now.

The destination server is not on your home network. Yet you want to tunnel via your home network to the far end server?

Wcool · 29-08-2012 07:33AM

Yes that is it. I think it might not work altogether, how do I convince the client to look for data over the tunnel instead of going direct to the internet.

if i change the host entry to 127.0.0.1 for the ip that it is looking for, it won't know the server at the end of the tunnel?

Redirecting communication to a server over a tunnel?

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