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Diagram of two computers connected only via a proxy server. The first computer says to the proxy server: "ask the second computer what the time is".

 

In computer networks, a proxy server is a server (a computer system or an application) that acts as an intermediary for requests from clients seeking resources from other servers.

 

A proxy server has a variety of potential purposes, including:

To keep machines behind it anonymous, mainly for security.[1]

To speed up access to resources (using caching). Web proxies are commonly used to cache web pages from a web server.[2]

To prevent downloading the same content multiple times (and save bandwidth).

To log / audit usage, e.g. to provide company employee Internet usage reporting.

To scan transmitted content for malware before delivery.

To scan outbound content, e.g., for data loss prevention.

To bypass website restrictions at work.

Access enhancement/restriction

 

via Proxy server – Wikipedia, the free encyclopedia.

 

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