Published at LXer:

Never mind that what I really need is an up-to-date "Absolutely OpenBSD," but since I'm in an I'll-take-what-I-can-get mood, I just secured a copy of "The Book of PF: A No-Nonsense Guide to the OpenBSD Firewall," which for all practical purposes is the most up-to-date book out there that has at least some focus on OpenBSD. In this book by Peter N.M. Hansteen, I hope to get somewhat up to speed on PF, the packet filter that originated in OpenBSD but which now is available in the other BSDs as well -- though not in Linux.

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