centos7下部署iptables环境纪录（关闭默认的firewalle）

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[[email protected] ~]# systemctl stop firewalld.service            //停止firewall

[[email protected] ~]# systemctl disable firewalld.service        //禁止firewall开机启动

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[[email protected] ~]# yum install iptables-services            //安装

[[email protected] ~]# vim /etc/sysconfig/iptables              //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

[[email protected] ~]# systemctl restart iptables.service                  //最后重启防火墙使配置生效

[[email protected] ~]# systemctl enable iptables.service                  //设置防火墙开机启动

[[email protected] ~]# iptables -L                 //查看防火墙规则,默认的是－t filter，如果是nat表查看，即iptables －t nat -L

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[[email protected] ~]# vim /etc/selinux/config

#SELINUX=enforcing           //注释掉

#SELINUXTYPE=targeted           //注释掉

SELINUX=disabled              //增加

[[email protected] ~]# setenforce 0       //使配置立即生效