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Most people do not understand the knowledge points of this article "how to check whether the port is occupied under linux", so the editor summarizes the following contents, detailed contents, clear steps, and has a certain reference value. I hope you can get something after reading this article. Let's take a look at this "how to check whether the port is occupied under linux" article.

In linux, you can use the netstat command to see if the port is occupied. Method: 1, log in to the system, right-click in the desktop space, select "Open Terminal"; 2, in the terminal, execute the "netstat-anp | grep port number" command to view the output results. If "LISTEN" appears after the port, it will be occupied.

The operating environment of this tutorial: CentOS 7 system, Dell G3 computer.

In linux, you can use the netstat command to see if the port is occupied.

The Linux netstat command is used to display the network status.

The use of netstat instructions can let you know the network situation of the entire Linux system.

Specific methods:

1. Log in to the system, right-click in the space on the desktop, and select "Open Terminal"

2. Terminal execution command: netstat-anp | grep port number

At 3306

For example, execute the following command

Netstat-anp | grep 3306

3306 will be displayed

Port usage. When LISTEN appears behind the port, it indicates that the port is occupied.

Expand knowledge:

If you want to see all ports that are currently in use, use the following command:

Netstat-nultp

You can see in the figure that port 82 is not occupied.

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