Proxy server

Proxy (proxy server) is a computer server or a computer program that can act as another computer to make requests for content from the Internet or an intranet.

Proxy Server acts as a gateway to the world of the Internet to every client machine. Proxy server is invisible to the client computer: a user who interacts with the Internet via a proxy server will not know that a proxy server is handling requests are done. Web server that receives requests from the proxy server will interpret the request-the request as if the request came directly from client computers, instead of the proxy server.

Proxy servers can also be used to secure private network that is connected to a public network (like internet). Proxy servers have more functionality than a router that features packet filtering because it is a proxy server to operate at a higher level and have a more comprehensive control of network access. Proxy server that functions as a "security agent" for a private network, commonly known as a firewall.