"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.