How to conceal my IP address
I have a machine, a server, with an IP address as normal. I want to make it as invisible as possible to the outside world, but I need access to the web and to one or two remote sites.
Can this be done? If my machine's IP address is not visible, would that make my machine hacker-proof? Is there a quick way of checking how hacker-proof my machine is or not?
Any other tips, especially regarding firewalls, would be welcome. But please put things in real simple terms -- I am a beginner with RHEL WS 4.0.