CentOS7.4关闭防火墙

//临时关闭

systemctl stop firewalld

//禁止开机启动

systemctl disable firewalld

Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service.

Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.