Find on port (second column is process_id):
sudo lsof -i -P -n | grep {port number}Kill on port:
sudo kill {process_id}Hard kill on port:
sudo kill -9 {process_id}Find on port (second column is process_id):
sudo lsof -i -P -n | grep {port number}Kill on port:
sudo kill {process_id}Hard kill on port:
sudo kill -9 {process_id}
I usually run
sudo netstat -nlptto understand who is keeping TCP ports opened for listening.