Patrick Regan has been a PC technician and network administrator/engineer for the past 15 years after graduating with a bachelor’s degree in physics from the University of Akron. He has taught many computer and network classes at Sacramento local colleges (Heald Colleges and MTI Colleges), worked as a product support engineer for the Intel Corporation Customer Service, and participated in and led many projects (Heald Colleges, Intel Corporation, and Miles Consulting Corp). For his teaching accomplishments, he received the Teacher of the Year award from Heald Colleges. In addition, he received several recognition awards from Intel. Previously, he was a senior network engineer for Virtual Alert support the BioTerrorism Readiness suite. Currently, he is a senior design architect/engineer and training coordinator for Miles Consulting Corp (MCC), a premiere Microsoft Gold partner and consulting firm. He holds many certifications, including the Microsoft MCSE, MCSA, and MCT; CompTIA’s A+, Network+, Server+, Linux+, Security+, and CTT+; Cisco CCNA; and Novell’s CNE and CWNP Certified Wireless Network Administrator (CWNA). Over the last couple of years, he has written several textbooks for Prentice Hall Publisher, including Troubleshooting the PC, Networking with Windows 2000 and 2003, Linux, Local Area Networks, Wide Area Networks, and the Acing Series (Acing the A+, Acing the Network+, Acing the Security+, and Acing the Linux+).