systemctl disable firewalld.service
systemctl stop firewalld.service
systemctl status firewalld.service
systemctl start firewalld.service
放行端口
firewall-cmd --add-port=444/tcp --permanent
取消放行
firewall-cmd --zone=public --remove-port=23456/tcp --permanent
firewall-cmd --reload
查看所有放行的端口
firewall-cmd --zone=public --list-ports
解锁防火墙
systemctl unmask firewalld