Proxy server English full name is Proxy Server, its function is the agent network user to obtain network information. The image said: it is a transfer station of network information. In general, when we use the web browser to connect to other Internet sites to get network information, we must send the request signal to get an answer, and then the other party will transfer the information in BIT. The proxy server is a server between the browser and the web server. After it has it, the browser is not directly to the web server to retrieve the web page but to send a request to the proxy server. The Request signal will be sent to the proxy server. Remove the information you need and transfer it to your browser by the proxy server. Moreover, most proxy servers have buffering functions, as in a large buffer pool, it has a large storage space, which constantly stores new data to its local memory, if your browser is requested The data is on its local memory and is up to date, then it does not re-re-taking data from the web server, and directly transmitting data on the memory to the user's browser. The general user's available bandwidth is small, but the browsing speed and efficiency can be greatly improved by the agent server and the target host through a large bandwidth. More important is the security features it provides. Access the target host by proxy server, you can hide the IP address of the user itself, and the target host can see is just the IP address of the proxy server. Many online hackers are hidden through this way to hide their true IP, thus escaping. The type of common agent can be divided into HTTP proxy, SOCKS4 agent and SOCKS5 agent according to the type used protocol type. No matter which agent used, you need some basic information about the proxy server: 1 The IP address of the proxy server 2 The port 3 of the agent service 3 this
