How To Set Up Shorewall (Shoreline) 4.0 Firewall On CentOS 5.1

The Shoreline Firewall, more commonly known as "Shorewall", is a high-level tool for configuring Netfilter. You describe your firewall/gateway requirements using entries in a set of configuration files. Shorewall reads those configuration files and with the help of the iptables utility, Shorewall configures Netfilter to match your requirements. Shorewall can be used on a dedicated firewall system, a multi-function gateway/router/server or on a standalone GNU/Linux system. Shorewall does not use Netfilter's ipchains compatibility mode and can thus take advantage of Netfilter's connection state tracking capabilities. https://shorewall.org/ Shorewall is a great firewall package for Linux it's, most distro's have packages available. What do you think about Shorewall? Do you have any other favorite firewall package.