Linux: Kill process on specific port
Solution 1
You can use
sudo netstat -tupln
to show what is listening on what port. You should see something similar to this (I've simplified the output somewhat).
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 2472/apache2
That fourth column (0.0.0.0:80 in my example) will show you the port number (80 here) and the final column (2472/apache2) will show you the PID (2472).
You can then issue
sudo kill -15 PID
where PID is the PID we found with the previous command. This will send SIGTERM to the process. If that fails, you may need to
sudo kill -9 PID
but that is generally a less friendly way to kill process. For more info, you should checkout
man kill
Solution 2
list all listening port:
netstat -antu
take the correspondent one, let's say 80 and kill it using this:
kill -9 $( lsof -i:80 -t )
user2823345
Updated on September 18, 2022Comments
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user2823345 over 1 year
How to kill a process if its port is known? For example if a process is running at port
12345
then how it can be terminated in linux/ubuntu. -
J-Cake about 5 yearsI've been searching for a simple solution. This is it. It should be accepted. Thanks for the great response.