Samuel Hart has been working with Unix and Linux systems since 1995. He is presently teaching courses on Linux administration at the University of Arizona Extended University program and is part of the system administration group in charge of the University of Arizona Physics Department. Knoppix is used both in his class as an educational tool and in his maintenance of several Windows and Linux servers. Sam is also a part of the Open Source Educational Foundation and runs Tux4Kids, a project dedicated to producing and promoting Open Source and Free Software in the classroom. Sam also performs consulting services through BigManNetworks.com.