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Network+ Training Guide by Mike Harwood, Drew Bird

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Proxy Servers

  • Identify the purpose, benefits, and characteristics of using a proxy server.

Proxy servers provide what is now an essential feature of any modern network—Internet access. A proxy server acts as an intermediary between a user on the internal network and a service on the external network (normally the Internet). The proxy server takes requests from a user and then performs those requests on behalf of the user. To the external system, the request looks as if it originated from the proxy server, not from the user on the internal network. Figure 12.7 shows how a proxy server fits into a network configuration.

Figure 12.7. A proxy server in a typical network configuration.

There are a couple reasons to implement a proxy server:

  • To perform ...

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