"A great book for network and system administrators who find themselves not only responsible for running a network, but securing it as well. The book's lucid and well-planned chapters thoroughly explain all of the latest security technologies beginning with the basics and building upon those concepts." —Mike Schiffman, Director of Research and Development, Guardent, Inc. Get security best practices from one practical resource. Network Security: A Beginner's Guide explains the steps you need to take to effectively establish a security program appropriate for your organization. You'll get details on Internet architecture, e-commerce security needs, encryption, hacker techniques, and intrusion detection. The book covers Windows NT/2000, UNIX/Linux, and Novell Netware.