:Never Installed a Firewall on Ubuntu? Try Firestarter
Never Installed a Firewall on Ubuntu? Try Firestarter Sep 26, 2008, 23 :03 UTC (7 Talkback[s]) (5521 reads) (Other stories by Bill Keys)
"If I have an option of giving a brief description about firewall I would say 'a program or hardware device that filters the information coming through the Internet connection into your private network or computer system. If an incoming packet of information is flagged by the filters, it is not allowed through.' A firewall does not guarantee security but it is in most environments the first line of defense against network based attacks.
"Firestarter is a friendly graphical interface that allows you to configure a software firewall in Linux using the built-in IPtables/IPchains utilities. It is an open source GUI firewall program. The software aims to combine ease of use with powerful features, therefore serving both Linux desktop users and system administrators. By the end of this article, the user will be able to install and configure Firestarter and will also be able to live a secure and healthy life... over the internet."