Jay's Iptables Firewall is a bash script that allows one to easily install and configure a firewall on a Linux system. It was initially written for use on a home LAN, but can be extend to any type of network. It features support for multiple (external/internal) interfaces, TCP/UDP/ICMP control, masquerading, synflood control, spoofing control, port forwarding from specific interfaces, VPNs, ToS (bandwith managment), denying hosts (IP or MAC address), ZorbIPTraffic, Spyware list IP, Pre/Post scripts, log options, and more. The firewall is able to launch custom iptables rules, and the configuration of the firewall is assisted by an optional, interactive, curses-based Perl script.
