Manage firewall in ubuntu 9.04 jaunty

On August 22, 2009, in firestarter, firewall, guarddog, gufw, ufw, by Dipin Krishna

Network communications go through “channels” called ports. You can restrict which ports are available (“open”) for network communications, creating a barricade to unwanted network intrusion. Firewalls do this job for you. But I guarantee that if you install one before you know how to use it that one or more networking programs on your system […]