centos 安装iptables

1、关闭firewall 
systemctl stop firewalld.service


2、安装iptables防火墙 
yum install iptables-services


#编辑防火墙文件 
vi /etc/sysconfig/iptables 
添加80端口 
-A INPUT -m state –state NEW -m tcp -p tcp –dport 80 -j ACCEPT 


#重启防火墙使配置文件生效 
systemctl restart iptables.service

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转载自blog.csdn.net/wmsjlihuan/article/details/78826203