I have two internet lines, what I need to do is, have a one Linux server and convert it to a proxy server (with a firewall) for both of two internet lines.

And there should be two different configurations for both lines. (I’ll be able to configure which computer having leased line internet connection and which computer should have DSL internet connection in my network. The network has 30 machines, and all are on NT 2000 platform)

Is there any relevant software for doing such operations or give me your ideas, related links and stuff will be highly appreciated.

Please try to brief more simplify since I’m a totally Newbie !!!

Thanking you all !

Nuwan

When you say proxy do you really mean routing web access through something like Squid or do you mean gateway? If you are running Squid then I'm not sure how you would control which traffic went out which interface. If you are just going to have a gateway then the kernel itself will do all this for you, although it'll take a little bit of reading up to get it all working. You'll need to get your head around the Advanced Routing HOWTO which you can find at http://www.tldp.org

HTH

Jamie...

Thank you very much Jamie !
Probably I'll be back with some questions !