A complex system that works is invariably found to have evolved from a simple system that worked...A complex system designed from scratch never works and cannot be patched up to make it work. You have to start over, beginning with a working simple system.
Linux.com has an intro to iptables that starts with the very basics and outlines a simple "open source" firewall. Its *very* introductory but its a good place to start for people just getting started with creating their own firewall.
Comments
RE: Basic iptables tutorial: Linux.com
very timely. In the next few weeks, I'm going to add a pure firewall box to my network. looks like I could also get rid of my linksys thingy as well.
thanks.
RE: Basic iptables tutorial: Linux.com
Hey I have a pretty darn good iptables script that I can provide you, I will shot it to TECHTIPS when I get a chance.