Christopher Negus served for eight years on development teams for the UNIX operating system at the AT&T labs, where UNIX was created and developed. He also worked with Novell on UNIX and UnixWare development. Chris is the author of the bestselling Fedora and Red Hat Linux Bible series, Linux Toys II, Linux Troubleshooting Bible, and Linux Bible 2008 Edition.

Francois Caen hosts and manages business application infrastructures through his company Turbosphere LLC. As an open-source advocate, he has lectured on OSS network management and Internet services, and served as president of the Tacoma Linux User Group. He is a Red Hat Certified Engineer (RHCE).