Overview of caching
Microsoft Forefront Threat Management Gateway implements a cache feature to improve performance and response times for Web requests. You configure the cache to contain Web objects that are frequently requested by users. When a user makes a request, the caching mechanism serves the requested object directly from the cache instead of making a request to the Internet. Web caching provides two main benefits:
Faster Internet user access—Web requests are served from the cache instead of requiring a connection to a remote Internet server. In Web publishing scenarios, reverse caching speeds up access for Internet users requesting Web content from corporate Web servers published by Forefront TMG.
Reduced traffic on the Internet connection—Because frequently requested objects are served from the cache, bandwidth is saved on the Internet connection. In Web publishing scenarios, reverse caching reduces the load on the published Web server.
This section provides information about forward and reverse caching, cache features that require configuration, and the type of Web objects that are cached.