netstat -nlp | grep tcp
eg: tcp6 0 0 :::3000 :::* LISTEN 1686/node
killall -9 _process_id_
eg: killall -9 1686
netstat -nlp | grep tcp
eg: tcp6 0 0 :::3000 :::* LISTEN 1686/node
killall -9 _process_id_
eg: killall -9 1686