What is a DMZ? A Dmz (AKA Demilitarized zone)it is an area space outside the firewall e.g a front yard outside your house is equivalent to a DMZ, it belongs to you, and can only be occupied by you, you can place any computer between your firewall and your internet . Once you have a firewall in place you should do some penetration tests on it.
A Function that combines well with a firewall is a proxy server, a proxy server is a server that can cached all your web browsing for fast page loads, it is very efficient to have, when a person browsers the web it stores a local copy of that URL webpage onto the proxy server for repeative access.
