... PFA NO-NONSENSE GUIDE TO THE OPENBSD FIREWALL 2ND EDITION HANSTEEN 2ND EDITION THE BOOK OF PF THE BOOK OF PFwww.it-ebooks.infoxviii IntroductionThis Is Not a HOWTO The book is a direct descendant ... Birthe, and my daughter, Nora, for all their love and support, before and during the book writing process as well as throughout the rather intense work periods that yielded the second edition. ... all the later configurations are based on the one we build in this chapter.z Chapter 3, “Into the Real World,” builds on the single-machine configu-ration in Chapter 2 and leads you through the...