is a lead network engineer for the University of Kentucky, where he works with healthcare networks based on the Cisco Catalyst, ASA, FWSM, and VPN product lines. David has a Bachelor of Science degree and Master of Science degree in electrical engineering from the University of Kentucky. He is the author of several Cisco Press titles, including Cisco ASA, PIX, and FWSM Firewall Handbook, Second Edition; Cisco Firewall Video Mentor; and Cisco LAN Switching Video Mentor.