www.zdi.net/Linux/firewalls.html

Andreasson, Oskar - IPTables Tutorial (http://www.BoingWorld.com/workshops/linux/iptables-tutorial)

Bartley, Dirk - Netfilter Presentation, Kalamazoo LUG (http://kalamazoolinux.org/presentations/20010417)

Russell, Rusty - Rusty's Unreliable Guides (the HOWTO by the main man)
(http://netfilter.samba.org/unreliable-guides/index.html)

Wreski, Dave - Linux Kernel Firewalling Matures: Netfilter (http://linuxsecurity.com/feature_stories/kernel-netfilter.html)

Zeller, Craig - His original IPChains configuration file and firewall scripts:
(http://www.zdi.net/Linux/firewalls.html)

Tons of example scripts available at: http://www.linuxguruz.org/iptables

Join the Netfilter mailing list: http://us4.samba.org/mailman/listinfo/netfilter

http://www.malibyte.net/iptables/iptables.html

----

http://www.linuxsecurity.com/feature_stories/feature_story-94.html
 
http://www.samag.com/documents/s=1769/sam0112a/0112a.htm

In the first link is another link to what seems to be a complete IPTables 
tutorial (prints out to 95 pages).


The FAQ is located:

http://netfilter.samba.org/netfilter-faq.html

Try and Google search for "netfilter" plus "iptables" for full results.

There was also an extremely useful discussion on iptables in the past few
months on a mailing list run by the Security Focus team
(www.securityfocus.com) when a collated list was distributed of sample
config files alongside explanations.

Suggest www.securityfocus.com then search through the mailing lists for
iptables/netfilter.

http://www.linuxguruz.org/iptables/ also has some sample scripts for
various network situations.

===========================================================================

http://www.zdi.net/Linux/firewalls.html
http://www.linuxdoc.org/LDP/nag2/x-087-2-firewall.example.html
http://www.linuxdoc.org/LDP/nag2/x-087-2-firewall.checkingconf.html

http://www.bagley.org/~doug/firewall/firewall.functions.iptables (for nfs
clients)

http://www.linuxguruz.org/iptables/scripts/rc.firewall_022.txt


---

http://www.linuxsecurity.com/feature_stories/feature_story-94.html

http://www.samag.com/documents/s=1769/sam0112a/0112a.htm

In the first link is another link to what seems to be a complete IPTables 
tutorial (prints out to 95 pages).

---

The FAQ is located:

http://netfilter.samba.org/netfilter-faq.html

Try and Google search for "netfilter" plus "iptables" for full results.

There was also an extremely useful discussion on iptables in the past few
months on a mailing list run by the Security Focus team
(www.securityfocus.com) when a collated list was distributed of sample
config files alongside explanations.

Suggest www.securityfocus.com then search through the mailing lists for
iptables/netfilter.

http://www.linuxguruz.org/iptables/ also has some sample scripts for
various network situations.


---

http://www.linuxjournal.com/article.php?sid=4815

I know this is a "spend money" type of suggestion, but I just bought the
second edition of Ziegler's _Linux Firewalls_ book.  It's been completely
rewritten to cover iptables, and it looks *very* good: