Mark Rhodes-Ousley, CISSP, CISM, MCSE and Information Security Architect, has been a practicing security professional for more than 8 years, beginning with the first Internet firewall installation for the County of Santa Clara. Specializing in information security, Mark has advised, designed, and installed security technologies and policies for dozens of companies including Fortune 500 companies such as Clorox, The Gap, Sun Microsystems, Hitachi Data Systems, Watkins-Johnson, Napster and Internex. Mark was a co-author of the first edition of this work, titled Network Security: The Complete Reference.