Jon Lasser is a Senior Unix Systems Administrator at SkyNetWeb, a subsidiary of Affinity Internet, Inc., where he administers Linux, FreeBSD, and Solaris systems. Jon is also the author of Think Unix (Que, 2000), an introduction to Linux and Unix for power users, as well as a columnist for Web Hosting magazine. Jon has been involved with Linux and Unix since 1993; his first Linux distribution was the Yggdrasil Summer 1993 release. Jon is a project coordinator for Bastille Linux, a security package for various Linux distributions, and he speaks at conferences on this and other computer security topics. Jon lives in Baltimore with his wife Kathleen and their three cats. You can reach him by e-mail at firstname.lastname@example.org.