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Old 12-11-2006, 09:44 AM   #1
Registered: Jul 2004
Location: Herent, Belgium, Europe, Earth
Distribution: Ubuntu 7.04
Posts: 102

Rep: Reputation: 15
Question Relay server

Hi all,

I am looking for some program (preferably open source ) which can be used on Linux (duh) and which does the following.

I want to open it on some port. Let's say port 80, to some specific host. I will connect from a second station towards this first one. As soon as I open a connection to this host, I want it to open a connection to the external host, on the port I am connecting from (in my example: 80), and sent through everything what I sent it.

<< Internet >> -- DMZ -- My station

My station cannot connect to outside ports, DMZ can. So I want to 'relay' all traffic on a certain port to and from the internet.

Does anyone know if something like that exists somewhere? In this case I specifically need it for connecting to news servers, but I would like to have it more general...

Old 12-11-2006, 10:12 AM   #2
Senior Member
Registered: Oct 2003
Location: UK
Distribution: Kubuntu 12.10 (using awesome wm though)
Posts: 3,530

Rep: Reputation: 65
I'm not 100% sure I understand your requirements, but I think maybe you should check out the port forwarding features of ssh. You want to tunnel through a firewall, yes? Be aware that if you're doing this on a network you don't own, you're probably breaching the acceptable use policy.

Be ethical.
Old 12-11-2006, 10:53 AM   #3
Registered: Jul 2004
Location: Herent, Belgium, Europe, Earth
Distribution: Ubuntu 7.04
Posts: 102

Original Poster
Rep: Reputation: 15
Hi Matthew,

Basically it's something like that yes. And no need to worry It's my own network...

BTW, I just tried ssh but no luck... I just need clear forwarding, no need for encrypted stuff.
ssh -L 1234:newsserver:119 localhost
That works, but only if I access the server via ssh... telnet refused to connect to it...

I also looked at IPtables, but that is a little difficult :S


Last edited by G00fy; 12-11-2006 at 10:55 AM.


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