What is Proxy?

Answer 1

If your ISP will only allow 1 client to connect to the internet by supplying only 1 IP address, you can install a proxy server.

This server will have 1 connection to your ISP ( therefore only using the 1 IP supplied from your provider )

Clients in your home / office / whatever, would then be configured to connect to your proxy server rather than the ISP.

The proxy server will listen for any requests from your clients, remember which machine made it & then ask the ISP for a result on the clients behalf. When it gets that result, it will save a copy itself ( just in case it has another client making the same request & to save having to ask the ISP again ) + it also feeds the response back to the client.

This way you can have many machines talking to an ISP that allows only 1 connection.

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You can obtain the same result by enabling Internet Connection Sharing (ICS) on the machine you have connected to your ISP. Very easy if all your machines have wireless cards because you aim them all at that ISP connected machine, running ICS.

Hope this answers your question

Answer 2

A server that sits between a client application, such as a Web browser, and a real server. It intercepts all requests to the real server to see if it can fulfill the requests itself. If not, it forwards the request to the real server.
Proxy servers have two main purposes:

Improve Performance: Proxy servers can dramatically improve performance for groups of users. This is because it saves the results of all requests for a certain amount of time. Consider the case where both user X and user Y access the World Wide Web through a proxy server. First user X requests a certain Web page, which we'll call Page 1. Sometime later, user Y requests the same page. Instead of forwarding the request to the Web server where Page 1 resides, which can be a time-consuming operation, the proxy server simply returns the Page 1 that it already fetched for user X. Since the proxy server is often on the same network as the user, this is a much faster operation. Real proxy servers support hundreds or thousands of users. The major online services such as America Online, MSN and Yahoo, for example, employ an array of proxy servers.
Filter Requests: Proxy servers can also be used to filter requests. For example, a company might use a proxy server to prevent its employees from accessing a specific set of Web sites.

Answer 3

A proxy server is a server (a computer system or an application program) which services the requests of its clients by making requests to other servers. Hope this helps!

Answer 4

A proxy server

Answer 5

"In computer networks, a proxy server is a server (a computer system or an application program) which services the requests of its clients by making requests to other servers."

Answer 6

proxy is same like server
if you want to access Internet through another system,you assign that system as proxy(that system have Internet) then map that system ip into another system then you will access the Internet in that system

Answer 7

Using someone elses shoulder to shoot.

Browser ---> Proxy ---> Interent