How can I find out which process is listening on a port on linux?

Question

How can I find out which process is listening on a port on linux?

Answer 1

as root

sudo lsof -i
sudo netstat -lptu

Answer 2

With lsof -iTCP -sTCP:LISTEN you get a list of all TCP ports in state LISTEN and their associated processes (command and pid are in the first two columns).

Answer 3

you can use "netstat"

netstat -anp | less

will show you the PID and process name as the last column, checkout "man netstat" if you want to change the options

Answer 4

You can use netstat to list all processes listening on some port. But I don't how to filter for a specific one.

Answer 5

netstat should help if you are on Linux. For more information see man netstat.