centos7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
//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