service iptables stop
service ip6tables stop
service NetworkManager stop
设置开机关闭防火墙服务
chkconfig iptables off
chkconfig ip6tables off
chkconfig NetworkMangager off
getenforce 查看SELinux的模式
setenforce 0 切换成 SELinux permissive(宽容模式)
getenforce
service network restart