Proxy Server

A proxy server acts as an intermediary between clients and external network resources. It receives requests from clients and forwards them to the appropriate resources, helping to protect clients from unwanted network traffic.

The most common types of proxy servers are SSL, FTP, HTTP, and anonymous proxies. The following table describes these proxy servers.

Table 6-4 Common Proxy Server Types

Proxy Server Type	Description
Secure Socket Layer (SSL)	Intervenes in the connection between the sender and the receiving resource to help prevent unwanted intrusions, such as hacking of personal or financial data transmitted over the internet.
Proxy	Acts as an intermediary between the sender and the receiving resource, helping to prevent unwanted intrusions such as the hacking of personal or financial data transmitted over the internet.
File Transfer Protocol (FTP)	Used for applications where data is uploaded to a server. In advanced mode, FTP proxies offer enhanced security features such as caching and encryption, making the transmission process more secure.
Hypertext Transmission Protocol (HTTP)	Enables caching of web pages and files for faster access. HTTP proxies can also work with SSL to provide a more secure connection, known as HTTPS.
Anonymous	Provides privacy by hiding the user's identity while browsing the internet.