How to close a port in linux

How to close the port in Linux: 1. Use the "netstat -anp |grep port" command to find out the process occupying this port and obtain the process number of the process; 2. Use "kill -9 process number" Command, close the process corresponding to the port to close the port.

#The operating environment of this tutorial: linux7.3 system, Dell G3 computer.

How to close the port in Linux

The first step is to use the following command

netstat -anp |grep port

Find out the process occupying this port,

The second step is to use the following command

kill -9 PID

Just kill it

An example is as follows:

Enter the command netstat -anp | grep ssh to view the process of opening the port.

Find the process corresponding to the port you want to close,

Enter the kill -9 port number command to close it process and port.

Related recommendations: "Linux Video Tutorial"

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