What is Proxy Sever and Firewall
Proxy Sever
Also known as a proxy or application level gateway. It is an application that breaks the connection among sender and receiver. Thus, it helps us to stop hacker from getting Internet address and detail of a private network.
Firewall
Firewall is a method for keeping a network secure. It is mainly used in giving user's access to the Internet in a secure fashion as well as to separate a company's public web server from its internal network.