centos7 关闭firewall安装iptables并配置

本是古典何须时尚 2022-05-28 01:41 155阅读 0赞

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 </div> 一、配置防火墙，开启80端口、3306端口 CentOS 7.0默认使用的是firewall作为防火墙，这里改为iptables防火墙。 1、关闭firewall： systemctl stop firewalld.service&nbsp;#停止firewall systemctl disable firewalld.service&nbsp;#禁止firewall开机启动 &nbsp; 2、安装iptables防火墙 yum install iptables-services&nbsp;#安装 vi /etc/sysconfig/iptables&nbsp;#编辑防火墙配置文件 # Firewall configuration written by system-config-firewall # Manual customization of this file is not recommended. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited COMMIT :wq!&nbsp;#保存退出 systemctl restart iptables.service&nbsp;#最后重启防火墙使配置生效 systemctl enable iptables.service&nbsp;#设置防火墙开机启动 &nbsp; 二、关闭SELINUX vi /etc/selinux/config #SELINUX=enforcing&nbsp;#注释掉 #SELINUXTYPE=targeted&nbsp;#注释掉 SELINUX=disabled&nbsp;#增加 :wq!&nbsp;#保存退出 setenforce 0&nbsp;#使配置立即生效 </td> 
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