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This tutorial is for aspiring or seasoned network professionals with at least a basic knowledge of networking in general and TCP/IP particular. The aim is to teach tools and techniques to make sure your network works the way it's supposed to, keeping you in charge. Central to the toolbox is the OpenBSD PF packet filter. Whether you are a greybeard looking for ways to optimize your setups or a greenhorn just starting out, this session will give you valuable pointers to how you build the network you need. The session will also offer some insight in the significant changes to be introduced to PF in the upcoming OpenBSD 4.2 version.
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 is still chairman and senior consultant. 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, he is now working on a book on building the network you need using PF and other free tools.