# systemctl start firewalld.service # systemctl enable firewalld.service # firewall-cmd --permanent --zone=public --add-port=22/tcp # firewall-cmd --permanent --zone=public --add-port=10050/tcp # firewall-cmd --permanent --zone=public --add-port=3306/tcp # firewall-cmd --reload # firewall-cmd --permanent --zone=public --list-ports