Proxy server is a server which acts as a proxy - ie. which forwards requests and responses between two host machines thereby acting as an interface between the two and securing certain information and protecting the privacy of the end users. Here, we provide a comprehensive list of proxy servers which can be used for website unfilter and bypass.
A proxy server is usually a web server that sits between a client and a server. It acts as an mediator for requests from clients seeking resources from other servers. In a client-server model, a client connects directly to the server. However, in this case, a client connects to the proxy server, requesting some service, such as a file, connection, web page, or other resources which are available from the target server. The proxy server processes the incoming request as per its filtering rules. e.g., it may allow or block requests based on the IP address or protocol of the request. If the packet or request is processed by the filter, the proxy feeds the resource to the target server and thereby requesting the service on behalf of the client.
A proxy server may also modify the incoming request or the server's response, and at times, it may serve the request from its cache without contacting the target server. It 'caches' responses from the target server, stores it locally, and whenever required, returns the cached response for all subsequent requests. There are different types of proxy servers and the most common ones are the web proxies. These proxies are those which allow access to content on the World Wide Web.
Uses of a proxy server
Proxy servers are widely used in various areas. Given below are some of the major applications of a proxy server:
For security reasons and to keep internal machines encapsulated and anonymous.
As an accelerator - faster access to resources (using caching).
To log, audit, monitor and control and implement access policy to a network. e.g. blocking of sites.
Web proxies through which prohibited/filtered sites can be accessed
To bypass security / parental controls.
To scan transmitted content for malware before delivery.
Reverse proxies where outbound content can be scanned, e.g., for data leak protection.
To allow a web site to make web requests to externally hosted resources (e.g. images, music files, etc.) when cross-domain restrictions prohibit the web site from linking directly to the outside domains.
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