Knoppix is something of a legend as far as system administrators and computer repair technicians are concerned. Most people who know about it have a healthy respect for it. More here
Klaus Knopper teaches at the Kaiserslautern University of Applied Sciences where he lectures in software engineering and software technology and occasionally gives seminars and talks about open source in various parts of the IT industry. Klaus received his diploma in electrical engineering from the Kaiserslautern University of Technology, which in German is die Technische Universität Kaiserslautern.