Shulou(Shulou.com)06/02 Report--

In this issue, the editor will bring you the scope of the port number. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

The port of an IP address is numbered by 16bit and can have up to 65536 ports. Ports are marked by port numbers, which are only integers, ranging from 0 to 65535.

Function:

The main function of a port number is to represent the services provided by a specific process in a computer. The computer in the network represents its identity by IP address, it can only represent a specific computer, but many services can be provided on one computer at the same time, such as database service, FTP service, Web service and so on. We can distinguish these different services provided by the same computer by port number, for example, the common port number 21 represents FTP service. Port number 23 means Telnet service port number 25 refers to SMTP service and so on. The port number is generally used to be a 4-digit integer, and the port number cannot be repeated on the same computer, otherwise there will be an exception such as port number conflict.

The above is the scope of the port number shared by the editor. If you happen to have similar doubts, please refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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