As I explained in "ISA Server's Caching Capabilities, Part 1," February 2004, http://www.winnetmag.com/windowssecurity, Instant Doc ID 41274, Microsoft Internet Security and Acceleration (ISA) Server 2000 is not only a firewall but also a service that accelerates Internet access by using an excellent caching functionality. The ISA Server cache stores frequently used URL objects (i.e., the content associated with URLs) in memory and in cache files on ISA Server's hard drive. Part 1 describes ISA Server's caching behavior and shows you how to configure cache routing rules and cache settings. In this article, I explain ISA Server's active caching feature, prepopulating the cache, advanced cache options, monitoring the cache, and scripts for working with the cache. ISA Server caches requests for both forward proxying (i.e., for internal clients requesting external URL objects) and reverse proxying (i.e., external clients requesting internal published URL objects), but this two-article series covers only ISA Server's forward-proxying capabilities. . . .
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