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 Understanding Packet Filter

Peter Matulis has written a guide to using OpenBSD's Packet Filter.

"This goal of this document will be i) to introduce the theory of the Packet Filter firewall system and ii) to provide a practical approach to setting up a three-legged firewall for use in a home lan. Packet Filter is the excellent firewall software made by the OpenBSD team. It began shipping with OpenBSD 3.0 (released December 1, 2001) where it replaced IP Filter. Considering its young age, Packet Filter never ceases to impress me. This tutorial is heavily based on the PF User's Guide."

 (Submitted by Noel Thu Feb 19, 2004 )


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