I wanna learn about iptables but don’t know where to start, this post perhaps will be my collection of link around iptables.

Perhaps I can learn it by doing

Tutorial :

• Frozentux iptables tutorial (cool)
• Using Linux iptables or ipchains to set up an internet gateway / firewall / router for home or office
• Serve Path Iptables
• Secure your Server with iptables
• Designing a firewall using Iptables for the Home User
• Iptables configuration for fedora
• iptables setup for a full service web server
• Iptables-Noah.org (basic examples, load rules, traffic shaping and handy command)
• Firewall Configuration in Ubuntu
• Remote desktop connection server with Fedora
• Slow Down Internet Worms With Tarpits
• Blocking Common Worm Ports and Backdoors
• 10 minutes to an iptables-based Linux firewall
  

Howto, tips and trick:

• Basic Iptables
• Filter packets for ddos attack
• Redirecting port
• Limit connection to ssh service
• Share your internet connection
• Using iptables to Block Brute Force Attacks
• Bandwidth monitoring with iptables
• How do I use Iptables connection tracking feature?
• tinc from behind a masquerading firewall
• Tips and Tricks for the Linux Network Admin
• How to setup a firewall in Ubuntu
• Simple firewall for Ubuntu using iptables
• Linux Iptables allow SQUID proxy incoming client request
• Transparent Proxying
• VNC and IPtables
• Iptables Demo
• routing vpn + cisco + linux controller using iptables
• Designing a DMZ using iptables
• iptables rules to allow Virus Scanner to Update
• Iptables Syn Flood

Scripts :

• IPTables Firewall Script and Configuration Files for Linux 2.4.x-2.6.x
• An iptables script intended to secure laptops and desktop boxes (i.e. not public servers) 
• Firewall examples (Fedora and RHEL)
• IPTables Example Config
• IPTables Bandwidth statics
• iptables script which saves and restores the rules on startup/ and shutdown
•  

Tools :

• Firestarter (A graphical interfaced Open Source firewall for Linux.)
• Firewall Builder (Firewall Builder is Open Source multi-platform firewall management software that supports Linux iptables, FreeBSD ipfilter and ipfw, OpenBSD pf.) 
• Shoreline Firewall (very powerful solution to help you configure an advanced firewall for any network)
• Ipkungfu (working firewall "out of the box" with zero configuration)

Recommended Books :

• Linux Firewalls: Attack Detection and Response with iptables, psad, and fwsnort

I’ll update the list as soon I find interesting link.

Last update : February 7 2008