All the stuff is being migrated from a set of static files done in lyx/sgmltools to twiki. As a result some links and crossreferences are broken at present. Sorry for the inconvenience.
QoS on Linux in an SME - originally started in 2003 when the LARTC HOWTO qos sections could be understood only by people who already knew the subject matter. It is probably still useful even today.
Running debian on various hardware - everything but the proverbial dead badger. Each article contains caveats if any, and notes on suitability for use in a Linux based media system.
Greylisting With Exim - my own implementation. In use in quite a few places for a 4th year now and still doing the job.
Old and Obsolete Stuff
How to backup to DVDs with Amanda? on Debian Etch - applies to iOmega REV as well. Mostly unnecessary now as Lenny has been out for a while. If however you are stuck with etch for whatever reason this may be useful.
Rant: Why IPSEC Tunnel Mode is not an Enterprise VPN Technology.? - when this was written in 2003 everybody though that I am a lunatic. Today most vendors present some form of an interface in ipsec to the OS thus doing exactly what in 2003 was considered to be loonie ravings.