7th European BSD Conference: Oct 18-19 2008, Strasbourg, France

Building the network you need with PF, the OpenBSD packet filter.

Peter N. M. Hansteen

Building the network you need is the central theme for any network
admin. this tutorial is for aspiring or seasoned network
professionals with at least a basic knowledge of networking in general
and tcp/ip particular. the session aims at teaching tools and
techniques to make sure you build your network to work the way it's
supposed to, keeping you in charge. central to the toolbox is the
openbsd pf packet filter, supplemented with tools that interact with
it. whether you are a greybeard looking for ways to optimize your
setups or a greenhorn just starting out, this session will give you
valuable insight into the inner life of your network and provide
pointers to how to use that knowledge to build the network you need.
the session will also offer some fresh information on changes
introduced in openbsd 4.4, the most recent version of pf and openbsd.
the tutorial is loosely based on hansteen's recent book, /the book of
pf/ (no starch press), with updates and adaptations based on
developments since the book's publication date.

Peter N. M. Hansteen is a consultant, writer and sysadmin based in
Bergen, Norway. He has been tinkering with computers since the mid
1980s, mainly while working to document how the systems work and why
they don't, in English as well as his native Norwegian. In 1991 he
co-founded Datadokumentasjon AS, a documentation and localization
company where he remained chairman and senior consultant until 2008.
Peter rediscovered Unixes about the time 386BSD appeared. After a few
years on Linux, which included participation in the RFC1149
implementation (2001), he eventually migrated all important bits to
FreeBSD and OpenBSD. A long time freenix advocate, he is a member of
the BLUG (Bergen (BSD and) Linux User Group) core group and current
vice president of NUUG (the Norwegian Unix User Group). During recent
years a frequent lecturer and tutor with emphasis on FreeBSD and
OpenBSD topics, author of several articles and /The Book of PF/ (No
Starch Press 2007) and maintains his blogosphere presence at