table align=left cellpadding=0 cellspacing=0 width=45 height=40 style=margin-top:0px;margin-bottom:0px;trtdimg class=teaser-image-odd src=http://images.howtoforge.com/images/teaser/centos.gif width=42 height=40 alt= //td/tr/tablepbHow To Install And Configure Advanced Policy Firewall (APF) On CentOS 5.3/b/ppThis tutorial explains how you can install and configure APF - aninterface to IPTables which lets you easily configure a full featuredfirewall to secure servers and workstations connected to a network.This guide describes an example installation on a server with cPanelbut it's only a matter of port numbers which must be open foreverything to work. APF can be used on any system./p