Centos关闭防火墙

CentOS7

1、关闭防火墙：sudo systemctl stop firewalld.service
2、关闭开机启动：sudo systemctl disable firewalld.service
一键操作：
sudo systemctl stop firewalld.service && sudo systemctl disable firewalld.service

CentOS6

1 关闭防火墙-----service iptables stop
2 启动防火墙-----service iptables start
3 重启防火墙-----service iptables restart
4 查看防火墙状态--service iptables status
5 永久关闭防火墙--chkconfig iptables off
6 永久关闭后启用--chkconfig iptables on
一键操作：
service iptables stop && chkconfig iptables off && service iptables status