centos7 无法启动网络(service network restart)错误解决办法

# service network restart

错误信息
Restarting network (via systemctl):  Job for network.service failed because the control process exited with error code. See "systemctl status network.service" and "journalctl -xe" for details.
解决方法

和 NetworkManager 服务有冲突，这个好解决，直接关闭 NetworkManger 服务就好了， service NetworkManager stop，并且禁止开机启动 chkconfig NetworkManager off 。之后重启就好了。