Ryan Troy has over 12 years of Unix/Linux system administration experience, working in diverse industries that range from web hosting to the newspaper industry. He has written articles for Linux Identity magazine and co-authored articles for Linux+ magazine. He is passionate about virtualization, specifically VMware's technologies. Ryan also founded the now-official Ubuntu Linux forums (http://www.ubuntuforums.org) in October 2004; he currently serves as technical administrator and chairman of the Ubuntu Forum Council. One of Ryan's latest projects has been to architect and build a virtualization infrastructure for a large newspaper chain in Michigan using VMware's ESX product line along with Dell Equallogic Storage Arrays. Ryan is also a VMware Certified Professional. Matthew Helmke has written articles for magazines such as Linux+ and Linux Identity, helped write Prentice Hall's The Official Ubuntu Book, and has written and self-published two books about Arabic and Moroccan culture. He first used Unix in 1987 while studying Lisp on a Vax at the university. Currently, he is an active member of the Ubuntu Linux community as an Administrator and Forum Council member for the Ubuntu Forums (ubuntuforums.org), and a member of the membership approval committee for Ubuntu in Europe, the Middle East, and Africa. He has run a business using only free software, has done some consulting, and is currently working on a master's degree in Information Resources and Library Science at the University of Arizona.