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Secure my firewall
Find the HOWTO or step-by-step guide that you need right here.

Filtering Packets with iptables  23 November 2004 
Source: "Filtering Packets with iptables" - Posted by Administrator   
This documentation will deal with the basics of getting iptables up and running.
Building a Bridging Firewall with Linux  23 November 2004 
Source: "Building a Bridging Firewall with Linux" - Posted by Administrator   
This documentation discusses how one can use the Linux kernels v2.2 and higher to setup Ethernet bridging and also explains the steps necessary to get a bridging firewall up and running. In a bridge, all packets received by one interface are passed t
Build a Floppy Firewall  23 November 2004 
Source: "Build a Floppy Firewall" - Posted by Administrator   
This documentation will teach you how to turn an unused PC into a packet-filtering firewall using a package called floppyfw. The firewall boots off a single floppy, runs completely in RAM, and uses ipchains for the filter rules. It also does IP masqu
Testing Your Firewall  23 November 2004 
Source: "Testing Your Firewall" - Posted by Administrator   
This document describes some procedures for testing your firewall implementation. It asks several questions that should help in determining if your firewall is working the way you expect.
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