Bibliography
- The OpenBSD Command-Line Companion, 1st ed. by Jacek Artymiak. ISBN 83-916651-8-6.
- Building Firewalls with OpenBSD and PF: Second Edition by Jacek Artymiak. ISBN 83-916651-1-9.
- Mastering FreeBSD and OpenBSD Security by Yanek Korff, Paco Hope and Bruce Potter. ISBN 0-596-00626-8.
- Absolute OpenBSD, Unix for the Practical Paranoid by Michael W. Lucas. ISBN 1-886411-99-9 (online copy here)
- Secure Architectures with OpenBSD by Brandon Palmer and Jose Nazario. ISBN 0-321-19366-0.
- The OpenBSD PF Packet Filter Book: PF for NetBSD, FreeBSD, DragonFly and OpenBSD published by Reed Media Services. ISBN 0-9790342-0-5.
- Building Linux and OpenBSD Firewalls by Wes Sonnenreich and Tom Yates. ISBN 0-471-35366-3.
- The OpenBSD 4.0 Crash Course by Jem Matzan. ISBN 0-596-51015-2.
- The Book of PF A No-Nonsense Guide to the OpenBSD Firewall, 2nd edition by Peter N.M. Hansteen ISBN 978-1-59327-274-6 .
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