From: Subject: Linux 2.4 Packet Filtering HOWTO Date: Thu, 9 Aug 2001 12:54:51 +0100 MIME-Version: 1.0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Content-Location: http://www.linuxsecurity.com/resource_files/firewalls/packet-filtering-HOWTO/index.html X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Linux 2.4 Packet Filtering HOWTO Next=20 Previous Contents=20

Linux 2.4 Packet Filtering HOWTO

Rusty Russell, mailing list=20 netfilter@lists.samba.org

v1.0.1 Mon May 1 18:09:31 CST = 2000=20

This document describes how to use iptables to filter out bad = packets for=20 the 2.4 Linux kernels.=20

1. Introduction

=

2. Where=20 is the official Web Site? Is there a Mailing List?

3. So=20 What's A Packet Filter?

  • 3.1=20 Why Would I Want to Packet Filter?=20
  • 3.2=20 How Do I Packet Filter Under Linux?

4. Who=20 the hell are you, and why are you playing with my kernel?

5. Rusty's=20 Really Quick Guide To Packet Filtering

6. How=20 Packets Traverse The Filters

7. Using=20 iptables

  • 7.1=20 What You'll See When Your Computer Starts Up=20
  • 7.2=20 Operations on a Single Rule=20
  • 7.3=20 Filtering Specifications=20
  • 7.4=20 Target Specifications=20
  • 7.5=20 Operations on an Entire Chain

8. Using=20 ipchains and ipfwadm

9. Mixing=20 NAT and Packet Filtering

10. Differences=20 Between iptables and ipchains

11. Advice=20 on Packet Filter Design

Next=20 Previous Contents