Dru Lavigne has reviewedThe Book of PF – A No-Nonsense Guide to the OpenBSD Firewall“. Peter N.M. Hansteen, the writer, has written this book as an expanded follow-up to his very popular online PF tutorial. PF (Packet Filter) is a robust packet filter that originated in OpenBSD and that has been ported to FreeBSD.

Dru concludes here short review with:

All in all, this book is very readable and a must-have resource for anyone who deals with firewall configurations. If you’ve heard good things about PF and have been thinking of giving it a go, this book is definitely for you. Start at the beginning and before you know it you’ll be through the book and quite the PF guru. Even if you’re already a PF guru, this is still a good book to keep on the shelf to refer to in thorny situations or to lend to colleagues.

Check the book details and other reviews here on Amazon. Recommended Buy.