防火墙打开关闭

#开启防火墙
systemctl start firewalld.service

#关闭防火墙
systemctl stop firewalld.service

重启防火墙
systemctl restartfirewalld.service

#查看防火墙状态
systemctl status firewalld.service

#禁用防火墙
systemctl disable firewalld.service

#启用防火墙（设置开机启动）
systemctl enable firewalld.service