Centos操作系统关闭防火墙

1、查看防火前状态：/etc/init.d/iptables status

2、开启防火墙：/etc/init.d/iptables start

3、关闭防火墙：/etc/init.d/iptables stop

4、设置防火墙开机不起动： chkconfig iptables off

1、开启防火墙：systemctl start firewalld

2、看防火前状态：firewall-cmd --state

3、关闭防火墙：systemctl stop firewalld

4、关闭防火墙开机启动：systemctl disable firewalld

5、查看防火墙开机启动状态：systemctl list-unit-files|grep firewalld