Firewall Builder is a multi-platform firewall configuration and management tool. It consists of a GUI and a set of policy compilers for various firewall platforms. Firewall Builder uses an object-oriented approach, it helps administrators maintain a database of network objects and allows policy editing using simple drag-and-drop operations. Firewall Builder currently supports iptables, IP Filter, ipfw, OpenBSD PF, and Cisco PIX libfwbuilder provides the back-end functionality in a library.