CentOS off Firewall

Centos7 shutting down the firewall

CentOS 7.0 defaults to using firewall as a firewall, and using iptables must be reset

1. Close the firewall directly

Systemctl Stop Firewalld.service #停止firewall

Systemctl Disable Firewalld.service #禁止firewall开机启动

2. Set up Iptables service

Yum-y Install Iptables-services

If you want to modify the firewall configuration, such as increasing firewall port 3306

Vi/etc/sysconfig/iptables

Add rule

-A input-m state--state new-m tcp-p TCP--dport 3306-j ACCEPT

After saving exits

Systemctl Restart Iptables.service #重启防火墙使配置生效

Systemctl Enable Iptables.service #设置防火墙开机启动

The final reboot system makes the setting effective

CentOS off Firewall