how to check process running on port ubuntu code example

Example 1: ubuntu check process on port

sudo lsof -i:22

Example 2: ubuntu stop process on port

sudo kill -9 `sudo lsof -t -i:{PORT_NUMBER}`

Example 3: find out which procses is using port linux

sudo lsof -i:<port_number>

Example 4: ubuntu get process on port

lsof -i -P -n

Example 5: check what ports are open linux

## if you use linux
sudo ss -tulw