I have 2 nics in my Linux box. One connected to my cable modem, and the other has a windows machine attached to it, which I do masquerading for. I need to be able to connection via VPN from the windows box to an outside host. Is there a way to easily determine what ports needs to be opened to accomplish this, or is there a way to masquerade for the windows machine, but not do any firewalling for that machine specifically, while still protecting my linux box?
And lastly, can any one tell me what rule I could implement to still be able to use Napster? TIA, jdk