Find process that are listening to a port without sudo privileges

Question

How to find the process ID's of the processes that are listening to a particular port , when you don't have the sudo privilieges ?

Answer 1

I needed to list processes on Jenkins which are listening on a port, and when they started:

lsof -t -i :4848 | xargs ps -o pid,etime,start,command -p

Answer 2

You can find your own processes with:

lsof -i :port#