Bri Hatch Chief Hacker, Onsight Inc. Lead Author Bri Hatch is Chief Hacker at Onsight, Inc. where he is a Unix/Linux and network security consultant. His clients have ranged from major banks, pharmaceutical companies and educational institutions to major California web browser developers and dot-coms that haven't failed. He has taught various security, Unix, and programming classes for corporations through Onsight and as an adjunct instructor Northwestern University. He has been securing and breaking into systems since before he traded in his Apple II+ for his first Unix system. He is also co-maintainer of Stunnel, an Open Source secure SSL wrapper used around the world to encrypt cleartext protocols. James Lee President, Onsight Inc. Co-Author James Lee is CEO of Onsight Inc., a training and consulting firm specializing in open-source technologies. Mr. Lee has over 15 years of experience in software development, training, Linux security and web programming. An open-source advocate, he believes that Linux is stable, securable and fun because it is open and free. He can talk endlessly about the virtues of Linux, Perl, Apache and other open-source products - just ask his students. He has written articles about network programming and Perl for The Linux Journal.