Mastering IPTables, Final Installment

November 4th, 2008 by Elliot Isaacson in

Your rating: None Average: 4.4 (7 votes)

This final installment of the IPTables tutorial details the paths that packets take along the chains, and presents some useful code snippets that should go in almost any firewall script.

Transcript: http://dark-code.bulix.org/fl04jo-68849?raw

Final firewall script: http://dark-code.bulix.org/a8il4b-68850

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Roland's picture

blocking input from certain IPaddresses

On January 21st, 2009 Roland (not verified) says:

I run a mini-webserver on 192.168.1.80:80 behind a Linksys router.
This series didn't explain how I can block certain IPaddresses that
abuse that server. I ran 'sudo /sbin/iptables -L' and couldn't figure
out the mess. I use ufw under Kubuntu, but it doesn't allow a table-based
configuration, which is a PITA because the order of these rules is
important. Is there a simple line I can add to this script that would
block incoming access from a certain IPaddress?

Anonymous's picture

Hardly "Mastering"

On November 6th, 2008 Anonymous (not verified) says:

This series would be MUCH more appropriately named "an intro to IPTABLES"

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