check process running on port ubuntu code example

Example 1: linux how to see ports in use

# Any of the following
sudo lsof -i -P -n | grep LISTEN
sudo netstat -tulpn | grep LISTEN
sudo lsof -i:22 # see a specific port such as 22
sudo nmap -sTU -O IP-address-Here

Example 2: ubuntu check process on port

sudo lsof -i:22

Example 3: find out which procses is using port linux

sudo lsof -i:<port_number>

Example 4: how to find process running on port in ubuntu

sudo lsof -i:8080

Example 5: linux how to see ports in use

sudo netstat -tulpn | grep LISTEN

sudo lsof -i:22 # see a specific port such as 22