关闭防火墙

1. 查看防火墙状态

$ systemctl status firewalld
$ service iptables status

2. 暂时关闭防火墙

$ systemctl stop firewalld
$ service iptables stop

3. 永久关闭防火墙

$ systemctl disable firewalld
$ chkconfig iptables off

4. 重启防火墙

$ systemctl enable firewalld
$ service iptables restart