ISA Server 2006 is a robust application layer firewall that provides organizations with the ability to secure critical business infrastructure from the exploits and threats of the modern computing world. ISA's ability to act as an edge firewall, a Virtual Private Networking solution, a reverse proxy server, or a content caching device give it unprecedented flexibility and position it as a valuable security tool for many types of organizations. ISA Server 2006 Unleashed provides insight into the inner workings of the product, as well as providing best-practice advice on design and implementation concepts for ISA. In addition to detailing commonly requested topics such as securing Outlook Web Access, deploying ISA in a firewall DMZ, and monitoring ISA traffic, this book provides up-to-date information about the new enhancements made to the 2006 version of the product. The author draws upon his experience deploying and managing enterprise ISA environments to present real-world scenarios, outline tips and tricks, and provide step-by-step guides to securing infrastructure using ISA.