How to kill a process running on a known port

If you know a process running on a specific port and need to kill the process ?

here are the steps.

1) Find the process ID. (Here which runs on 9443)

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fuser -n tcp 9443 or lsof -w -n -i tcp:9443

Then you have the process ID. Kill the process with (Here ID = 6147)

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1	kill -9 6147