Find PID of process that use a port on Windows
My service crash on startup with the classic :
java.rmi.server.ExportException: Listen failed on port: 9999
How can I find the process for killing it?
Just open a command shell and type : (saying your port is 123456)
netstat -a -n -o | find "123456"
You will see everything you need
The headers are :
Proto Local Address Foreign Address State PID
TCP 0.0.0.0:37 0.0.0.0:0 LISTENING 1111
Find PID of process that use a port on Windows (eg port:"9999")
netstat -aon | find "9999"
-a Displays all connections and listening ports.
-o Displays the owning process ID associated with each connection.
-n Displays addresses and port numbers in numerical form.
output:
TCP 0.0.0.0:9999 0.0.0.0:0 LISTENING 15776
Then Kill the process by PID taskkill /F /PID 15776
/F - Specifies to forcefully terminate the process(es).
Note: You may need an extra permission (run from admin) to kill some certain processes
After some fiddling with a script I came to this action. Copy and save it in a .bat file:
FOR /F "usebackq tokens=5" %%i IN (`netstat -aon ^| find "3306"`) DO taskkill /F /PID %%i
change 'find "3306"' in the port number which needs to be free. Then run the file as admin. It will kill all the processes running on this port
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