root@minion2 ~]# /etc/init.d/network  restart 

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.

                                                           [FAILED]

解决办法：

yum  remove   NetworkManager

OK 解决

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