CentOS7 关闭防火墙

• CentOS6 关闭防火墙使用以下命令

//临时关闭
service iptables stop
//禁止开机启动
chkconfig iptables off

• CentOS7 版本后防火墙默认使用firewalld
• 查询防火墙 - systemctl status firewalld.service

//临时关闭
systemctl stop firewalld
//禁止开机启动
systemctl disable firewalld

• 选择安装iptables-service

yum install -y iptables-services
//关闭防火墙
service iptables stop
Redirecting to /bin/systemctl stop  iptables.service
//检查防火墙状态
service iptables status
Redirecting to /bin/systemctl status iptables.service
● iptables.service - IPv4 firewall with iptables
   Loaded: loaded (/usr/lib/systemd/system/iptables.service; disabled; vendor preset: disabled)
   Active: active (exited) since Sun 2018-07-29 08:51:51 EDT; 22min ago
  Process: 1637 ExecStart=/usr/libexec/iptables/iptables.init start (code=exited, status=0/SUCCESS)
 Main PID: 1637 (code=exited, status=0/SUCCESS)

link https://jingyan.baidu.com/article/ff42efa9fd8c1cc19e2202bb.html