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Server acceleration
In Web proxy caching, the Intel NetStructure Cache Appliance handles arbitrary Web requests to distant Web servers on behalf of a set of users. Server acceleration (also known as reverse proxy caching or virtual Web hosting) is slightly different. In server acceleration, the appliance is the Web server to which the user is trying to connect. The Web server host name resolves to the appliance, which is acting as the real Web server.
Having a fast, scalable,
If the appliance has the desired object in cache, it serves the document quickly. If the document is not in cache, the appliance requests the document from another backup Web server that has all the content. A configuration table specifies which backup Web server has the required content.
A Web host can maintain a scalable appliance serving engine and maintain a set of
world wide web
requests for www.janes_books.com and jazz.flute.org resolve to virtual IP of Intel NetStructure Cache Appliance
webserver |
real.janes_books.com
The Intel NetStructure | Intel | |
NetStructure | ||
Cache Appliance serves | ||
documents on behalf of | Cache | |
real.janes_books.com | Appliance | |
and big.server.net |
|
webserver |
big.server.net hosts jazz.flute.org
Figure 6 Intel NetStructure Cache Appliances as server accelerator (reverse proxy) for a pair of Web servers
128Intel NetStructure Cache Appliance Administrator’s Guide