Thanks for mentioning it. If this is it, it's in O'Reilly's Safari catalog (I've no association, just a Safari account): The Book of PF, 3rd Edition By

Thanks for mentioning it. If this is it, it's in O'Reilly's Safari catalog (I've no association, just a Safari account): The Book of PF, 3rd Edition By: Peter N.M. Hansteen Publisher: No Starch Press Pub. Date: October 8, 2014 Print ISBN-13: 978-1-59327-589-1 Pages in Print Edition: 248 http://my.safaribooksonline.com/book/operating-systems-and-server-administration/openbsd/9781457185410 http://my.safaribooksonline.com/book/operating-systems-and-s...