When we carry out online business and rent a server, we will hear the service provider say that the server port number is different for different service types, so the server port number represents different services. Let me tell you the port number of the server in detail.

1. Registered port number

The registered port number we are talking about mainly refers to 1024 to 49 15 1, and many servers have bound this port. These ports do not clearly define service partners, so different programs can be customized according to actual needs.

2. Dynamic or dedicated port number

From 49 152 to 65535, we call it dynamic or private port number. These ports are very popular with Trojans, so these port numbers are often not easy to attract attention and are very easy to hide.

3. Recognized port numbers

The port numbers we recognize are mainly from 0 to 1023, which are closely bound to some specific services. Usually, the communication of these ports is a protocol that clearly indicates a service and cannot be redefined. For example, port 80 is mainly a service. This kind of port is usually not used by hackers.

The port types we introduced above are just like house numbers. The client can find the corresponding server according to the IP address, and the user can access the server only if the application type corresponds to the corresponding port number.

Through our introduction, I believe you have a certain understanding of the port number on the server, and you can choose the port number better when you use it later.