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Proxy
Server 2.0 Architecture. |
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To understand the architecture of Microsoft Proxy Server, you must first
have a basic grasp of how Proxy works for outbound client requests. Here
is
a simple example:
Jon opens his browser to visit his favorite news site on the net. He
types
in the sites IP address which he has memorized because his visits often,
instead of doing his job. The client compares the IP address Jon entered
to
the LAT table. Because the IP address is not found on the LAT, it is
considered external. Since the client has determined that the IP address
is
external, it knows it must process the request through Proxy Server. The
client hands Jon's request to Proxy Server. Proxy Server then checks the
IP
address against the access control applied by the Administrator. The
Administrator has the ability to stop internal employees from visiting
certain sites. Since Jon's request is not on the forbidden list applied
by
the Administrator, Proxy Server executes the request. Proxy contacts the
website and requests the document Jon wanted. After Proxy server has
received the information it requested, it stored a copy in its cache for
later use and hands the request to the client machine. The website
pops-up
on Jon's browser.
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