Linux6.5版本
//查看防火墙状态
service iptables status
//暂时关闭防火墙
service iptables stop
Linux7.0版本
//查看状态
systemctl status firewalld或者 firewall-cmd --state
//停止并禁用开机启动
systemctl disable firewalld
//禁用防火墙
systemctl stop firewalld
//启动防火墙
systemctl start firewalld
//设置开机启动防火墙
systemctl enable firewalld
//重启防火墙
firewall-cmd --reload
