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How the proxy server works

  The working principle of the Proxy Server is that when the client sets the Proxy Server in the browser, the requests you use to access all WWW sites in the browser will not be sent directly to the destination host, but will be sent to the proxy server first. After the proxy server accepts the client’s request, the proxy server sends a request to the destination host and accepts the destination host’s data, which is stored in the proxy server’s hard disk, and then the proxy server sends the data requested by the client to the client.

How the proxy server works

  The role played by the proxy server

  Proxy server was born to reduce long-distance transmission. It can not only proxy the client to make a request to the server, but also proxy the server to send the data needed by the client.

  When the client makes a request to the server, the request will be sent to the proxy server, and then the proxy server will check whether it has the data needed by the client. If there is, the proxy server will replace the server to transmit the data to the client. And the proxy server is generally set to a proxy server that is closer to its transmission distance, so it will transmit data to the client faster than the data from the remote server.

  If the proxy server does not have the data requested by the client, it will go to the server to obtain the required data. When the proxy server obtains the data from the server and sends it to the client, it saves a copy of it. Next time, if a user makes the same request, the data can be passed directly, without the need to get the server. It can be seen that the function of the proxy server to improve network data transmission congestion is obvious.