ISA Server 2004 combines an advanced application-layer firewall, VPN support, and web caching. It's powerful but not simple. Thankfully, there's a comprehensive, independent guide for everyone who needs to evaluate, implement, or manage it.Renowned ISA Server experts Dr. Thomas Shinder and Debra Littlejohn Shinder review the product's goals and feature set in detail, then walk you through prepping your network for it, installing it, and configuring it. You'll learn how to create firewall policies; provide remote access, configure site-to-site VPNs; use stateful inspection; filter applications; decide what to cache and when; and monitor and troubleshoot everything. The Shinders even compare ISA Server 2004 with its competitors, showing how to use them together to provide multilayered security.