Linux系统关闭防火墙命令
下面是red hat/CentOs7关闭防火墙的命令!
1:查看防火状态
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