A proxy acts as an intermediary for certain types of transactions on the internet.
The most common is probably a web proxy. When configured to use a proxy, a web browser makes its requests of the proxy, not of the actual website being requested. The proxy then makes those requests on behalf of the browser, and returns the result.
For example, normally when browsing a website such as askleo.com, a web browser connects directly to the server hosting the web site and requests whatever pages the reader wants to view. When configured to use a proxy, the browser connects instead to a proxy server to make its requests. The proxy server then connects to the desired website – askleo.com in this case – on behalf of the original web browser.
Proxies can be used for several different reasons, but most commonly, they implement some kind of filtering: either restricting what sites can be viewed, or examining the information returned by those sites for malware and perhaps other prohibited content.
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Proxy may refer to:
- Proxy or agent (law), a substitute authorized to act for another entity or a document which authorizes the agent so to act
- Proxy (climate), a measured variable used to infer the value of a variable of interest in climate research
- Proxy (statistics), a measured variable used to infer the value of a variable of interest
- Healthcare proxy, a document used to specify an agent to make medical decisions for a patient in case they are incapacitated
- Proxy abuse (or vicarious abuse), abuse committed on behalf of somebody else
- Proxy bullying (or vicarious bullying), bullying committed on behalf of somebody else
- Proxy fight, attempting to influence how company shareholders use their proxy votes
- Proxy marriage, common amongst European monarchs, where one party is not present in person to their marriage to the other
- Proxy murder, a murder committed on behalf of somebody else
- Proxy statement, information published related to a U.S. stockholders' meeting
- Proxy voting, a vote cast on behalf of an absent person
- Proxy war, a war where two powers use third parties as a substitute for fighting each other directly
- Torture by proxy, torturing someone on somebody else's behalf