CentOS7 Firewall防火墙

# systemctl start firewalld         # 启动,
# systemctl enable firewalld        # 开机启动
# systemctl stop firewalld          # 关闭
# systemctl disable firewalld       # 取消开机启动

查看特性
firewall-cmd --list-all

查看firewall服务状态
systemctl status firewalld

firewall-cmd --state

参考：https://havee.me/linux/2015-01/using-firewalls-on-centos-7.html

CentOS7 Firewall防火墙

原文：http://www.cnblogs.com/yuhuangdadi/p/6341269.html