Markus Feilner is a Linux author, trainer, and consultant from Regensburg, Germany, and has been working with open-source software since the mid 1990s. His first contact with UNIX was a SUN cluster and SPARC workstations at Regensburg University (during his studies of geography). Since the year 2000, he has published several documents used in Linux training all over Germany. In 2001, he founded his own Linux consulting and training company, Feilner IT (http://www.feilner-it.net). Furthermore, he is an author, currently working as a trainer, consultant, and systems engineer at Millenux, Munich, where he focuses on groupware, collaboration, and virtualization with Linux-based systems and networks.
He is interested in anything about geography, traveling, photography, philosophy (especially that of open-source software), global politics, and literature, but always has too little time for these hobbies.