Peter N. M. Hansteen is a consultant, writer, and sysadmin based in Bergen, Norway. A longtime Freenix advocate, Hansteen is a frequent lecturer on OpenBSD and FreeBSD topics, an occasional contributor to BSD Magazine, and the author of an often-slashdotted blog (http: //bsdly.blogspot.com/). Hansteen was a participant in the original RFC 1149 implementation team. The Book of PF is an expanded follow-up to his very popular online PF tutorial (http: //home.nuug.no/ peter/pf/).
