关闭firewall：@H_404_1@

systemctl stop firewalld.service#停止firewall@H_404_1@

systemctl disable firewalld.service#禁止firewall开机启动@H_404_1@

yum install iptables-services#安装iptables@H_404_1@

vi /etc/sysconfig/iptables#编辑防火墙配置文件@H_404_1@

# Firewall configuration written by system-config-firewall@H_404_1@

# Manual customization of this file is not recommended.@H_404_1@

*filter@H_404_1@

:INPUT ACCEPT [0:0]@H_404_1@

:FORWARD ACCEPT [0:0]@H_404_1@

:OUTPUT ACCEPT [0:0]@H_404_1@

-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT@H_404_1@

-A INPUT -p icmp -j ACCEPT@H_404_1@

-A INPUT -i lo -j ACCEPT@H_404_1@

-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT@H_404_1@

-A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT@H_404_1@

-A INPUT -j REJECT --reject-with icmp-host-prohibited@H_404_1@

-A FORWARD -j REJECT --reject-with icmp-host-prohibited@H_404_1@

COMMIT@H_404_1@

:wq!#保存退出@H_404_1@

systemctl start iptables.service#启动防火墙@H_404_1@

systemctl stop iptables.service#停止防火墙@H_404_1@

systemctl restart iptables.service#重启防火墙@H_404_1@

systemctl status iptables.service#查看防火墙状态@H_404_1@

systemctl enable iptables.service#设置开机启动@H_404_1@