How to Check Who Occupies a Port under Windows/Linux

When developing under Windows/Linux, it is often encountered that the port is duplicated and the exception is reported: for example

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APPLICATION FAILED TO START
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Description:

Web server failed to start. Port 10000 was already in use.

Action:

Identify and stop the process that's listening on port 10000 or configure this application to listen on another port.

The following describes how to check who occupies a certain port and how to kill the port process.

Windows

1. Open a command window (run as administrator)

window+R key combination, call out the command window.

2. View the PID corresponding to the occupied port

input the command:

netstat -aon|findstr "10000"

Press Enter to execute the command, the last digit is the PID, which is 7992 here .

3. View the process of the specified PID

Continue to enter the command:

tasklist|findstr "7992"

Press Enter to execute the command.

 It is a program: yundetectservice.exe occupies the port

4. End the process

Force (/F parameter) to kill all processes with pid 7992 including child processes (/T parameter):

taskkill /T /F /PID 7992

Linux

1. Check the port number occupancy, such as: 6010

netstat -anp |grep 6010

 

2. End the process that occupies the port

kill -9 2503

3. Check the status of all ports and confirm that the process has ended

netstat -ntlp