open ports ubuntu ip code example
Example 1: ubuntu listening ports
# To see ports in use
sudo lsof -i -P -n | grep LISTEN
sudo netstat -tulpn | grep LISTEN
Example 2: ubuntu open port
sudo ufw allow 1191/tcp
# To see ports in use
sudo lsof -i -P -n | grep LISTEN
sudo netstat -tulpn | grep LISTEN
sudo ufw allow 1191/tcp