~]# systemctl start firewalld # 启动
~]# systemctl enable firewalld # 开机启动
~]# systemctl stop firewalld # 关闭
~]# systemctl disable firewalld # 取消开机启动
~]# systemctl daemon-reload # 重新载入 systemd
~]# systemctl start firewalld # 启动
~]# systemctl enable firewalld # 开机启动
~]# systemctl stop firewalld # 关闭
~]# systemctl disable firewalld # 取消开机启动
~]# systemctl daemon-reload # 重新载入 systemd