Proxy Server

Open Proxy

An open proxy is a proxy server that is accessible by any Internet user. Generally, a proxy server only allows users within a network group (a closed proxy) to store and forward Internet services such as DNS or web pages to reduce and control the bandwidth used by the group. With an open proxy, however, any user on the Internet is able to use this forwarding service. There are 2 famous open proxy types:

1. Anonymous Proxy. Reveals its identity as a server but doesn't disclose the initial IP address. Though this proxy server can be discovered easily, it can be beneficial for some users as it hides their IP address.
2. Transparent Proxy: This proxy server again identifies itself, and with the support of HTTP headers, the first IP address can be viewed. The main benefit of using this sort of server is its ability to cache the websites.

Reverse Proxy

A reverse proxy retrieves resources on behalf of a client from one or more servers. These resources are then returned to the client, appearing as if they originated from the proxy server itself.