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Proxy server

For Wikipedia's policy on editing from open proxies, see Wikipedia:Open proxies.
For other uses, see Proxy (disambiguation).

Two computers connected via a proxy server. The first computer says to the proxy server: "ask the second computer what the time is".
Communication between two computers connected through a third computer acting as a proxy server. This can protect Alice's privacy, as Bob only knows about the proxy and cannot identify or contact Alice directly.

In computer networking, a proxy server is a server application that acts as an intermediary between a client requesting a resource and the server providing that resource.[1] It improves privacy, security, and possibly performance in the process.

Instead of connecting directly to a server that can fulfill a request for a resource, such as a file or web page, the client directs the request to the proxy server, which evaluates the request and performs the required network transactions. This serves as a method to simplify or control the complexity of the request, or provide additional benefits such as load balancing, privacy, or security. Proxies were devised to add structure and encapsulation to distributed systems.[2] A proxy server thus functions on behalf of the client when requesting service, potentially masking the true origin of the request to the resource server.

  1. ^ Luotonen, Ari; Altis, Kevin (April 1994). "World-Wide Web Proxies" (PDF). Archived (PDF) from the original on 9 October 2016.
  2. ^ Shapiro, Marc (May 1986). Structure and Encapsulation in Distributed Systems: the Proxy Principle. 6th International Conference on Distributed Computing Systems. Cambridge, MA, USA. pp. 198–204. inria-00444651. Archived from the original on 26 December 2018. Retrieved 26 December 2018.

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