CentOS启动iptables服务

关闭firewalld

以下操作均在root权限下使用
执行以下命令

systemctl stop firewalld
  
systemctl mask firewalld  

安装iptables-services

yum install iptables-services  

设置开机启动

systemctl enable iptables  
systemctl stop iptables  
systemctl start iptables  
systemctl restart iptables  
systemctl reload iptables  

保存设置好的规则

service iptables save