Mark Richard Shuttleworth created Ubuntu, without which this book would be impossible. Ubuntu has added to the productivity and creativity of the world, and I thank him for his creation.
I want to especially thank Kyle Looper and Pat O'Brien, who gave me so much help with this project. I'd also like to thank the staff at Wiley Publishing — they continue to give me great assistance.
I also want to thank my wife, Lidia, for her good advice, support, and encouragement. Without her, I would still be the pocket‐protector‐wearing, busted‐eyeglasses‐fixed‐with‐tape, Star Trek‐costume‐wearing, Saturday‐night‐hacking, sorry sorta guy. Well, I was never into Star Trek, but I am a geek and I'm lucky to have met her.