What is a firewall?

Poeple talk about firewalls alot, what exacly are they?

www.google.com------------>search for Firewalls

http://www.antionline.com/showthread...hreadid=130842

http://www.antionline.com/showthread...hreadid=219408

http://www.zonelabs.com/

Read, learn and then get a more configurable firewall like Agnitum Outpost...

What do you know about my firewall? Scorp666

I know nothing about your firewall and don't really need to know anything about it