firewall-cmd --state 查看防火墙状态
systemctl stop firewalld.service 关闭防火墙 关机重启后仍会重新开启防火墙
systemctl disable firewalld.service 禁止防火墙在开机时重启 配置上步关闭防火墙 可永久关闭防火墙
systemctl start firewalld.service 启动防火墙
firewall-cmd --state 查看防火墙状态
systemctl stop firewalld.service 关闭防火墙 关机重启后仍会重新开启防火墙
systemctl disable firewalld.service 禁止防火墙在开机时重启 配置上步关闭防火墙 可永久关闭防火墙
systemctl start firewalld.service 启动防火墙