Firestarter is an Open Source visual firewall program. The software aims to combine ease of use with powerful features, therefore serving both Linux desktop users and system administrators.
The authors strongly believe that your job is to make the high level security policy decisions and the tools's role is to take care of the underlying details. This is a departure from your typical Linux firewall, which has traditionally required arcane implementation specific knowledge.
Even though the firewall does not guarantee security by itself, many times it is the only line of defense you will have against network based attacksYou can use Firestarter on your...
Firestarter features
Open Source software, available free of charge
User friendly, easy to use, graphical interface
A wizard walks you through setting up your firewall on your first time
Suitable for use on desktops, servers and gateways
Real-time firewall event monitor shows intrusion attempts as they happen
Enables Internet connection sharing, optionally with DHCP service for the clients
Allows you to define both inbound and outbound access policy
Open or stealth ports, shaping your firewalling with just a few mouse clicks
Enable port forwarding for your local network in just seconds
Option to whitelist or blacklist traffic
Real time firewall events view
View active network connections, including any traffic routed through the firewall
Advanced Linux kernel tuning features provide protection from flooding, broadcasting and spoofing
Support for tuning ICMP parameters to stop Denial of Service (DoS) attacks
Support for tuning ToS parameters to improve services for connected client computers
Ability to hook up user defined scripts or rulesets before or after firewall activation
