How to find which service is listening on a given port


//So to scan you own PC and find open ports you can enter:

sudo netstat --tcp --udp --listening --program

//With this command you need to enter

sudo lsof +M -i4

//user, does help, but is not like those other tools, with fuser you can also kill the process which is listening on a given port.

sudo fuser -v 3143/tcp