what proxies should be used for and the different methods of proxying

PROXY SERVER IS a general term for any node on a network that accepts or intercepts connections from clients and then initializes a new connection to the server. Proxy servers are the middlemen in a client/server relationship. Because proxy servers handle all data that is passed between the client and the server, they are in a position of power. For those of us who need more control over network connections, proxy servers may provide that.