Search process by port number on ubuntu and kill it.

 

>sudo lsof -i :8188

python  231134 mare   45u  IPv4 2074469      0t0  TCP localhost:8188->localhost:42132 (CLOSE_WAIT)

python  231134 mare   46u  IPv4 2105633      0t0  TCP localhost:8188->localhost:57870 (CLOSE_WAIT)

python  231134 mare   47u  IPv4 2074473      0t0  TCP localhost:8188->localhost:42160 (CLOSE_WAIT)

python  231134 mare   48u  IPv4 2103693      0t0  TCP localhost:8188->localhost:57886 (CLOSE_WAIT)

> kill -9 231134

🙇🏻‍♂️