firewall-cmd add ports code example
Example 1: firewall-cmd add port 8080
sudo firewall-cmd --zone=public --permanent --add-port=5000/tcp
sudo firewall-cmd --zone=public --permanent --add-port=4990-4999/udp
sudo firewall-cmd --zone=public --permanent --list-ports
Example 2: firewall-cmd status
# firewall-cmd --state