安装Iptables 服务：

yum install iptables-services
停止firewalld：
systemctl stop firewalld
mask firewalld:
systemctl mask firewalld

service iptables save
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查看firewall状态
systemctl status firewalld.service

屏蔽iptables命令：
systemctl status iptables
systemctl stop iptables
systemctl mask iptables
设置默认zone为public
firewall-cmd –set-default-zone=public
添加8080tcp端口

firewall-cmd –permanent –zone=public –add-port=8080/tcp
查看当前public zone配置情况
firewall-cmd –permanent –zone=public –list-all