Carl Albing is the coauthor of two books, one on Java development on Linux and his latest, the O'Reilly "bash Cookbook". A software consultant, manager, analyst and programmer with an amazing breadth of software experience, Carl has worked with companies in the US, Canada and Europe. P Vossen has been working with computers since the early 80s and has been in the IT industry since the early 90s, specializing in Information Security since the late 90s. He has previously written for Information Security Magazine and SearchSecurity.com, among others. On those few occasion when he's not in front of a computer, he is usually taking something apart, putting something together, or both. Cameron Newham lives in Perth, Western Australia. After completing a Bachelor of Science majoring in information technology and geography at the University of Western Australia, Cameron joined Universal Defence Systems (later to become Australian Defence Industries) as a software engineer. He has been with ADI for six years, working on various aspects of command and control systems. In his spare time Cameron can be found surfing the Internet, ballroom dancing, or driving his sports car.