Contributed by deanna on from the a-little-light-reading dept.
This book is an expanded, cross-referenced, indexed, edited, and reformatted version of the PF User's Guide. It also covers spamd and introduces the setup and differences of PF on NetBSD, DragonFly, and FreeBSD.
The book is available from the publisher's website. Some of the proceeds will be donated to the OpenBSD Project, so this is another way to show your support for OpenBSD.
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