centos7 Reboot NIC Report Error: Job for network.service failed because the control process exited with error code

[root@mina0 hadoop]# systemctl restart network

Job for network.service failed because the control process exited with error code. See "systemctl status network.service" and "journalctl -xe" for details.

[root@mina0 hadoop]# journalctl -xe

10月 26 17:15:57 mina0 network[3308]: Loopback interface being opened: [ OK]

Oct 26 17:15:57 mina0 NetworkManager[679]: <info> [1509009357.3386] audit: op="connec

Oct 26 17:15:57 mina0 network[3308]: opening interface ens33: error: failed to activate connection: No suita

Oct 26 17:15:57 mina0 network[3308]: [failed]

10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists

10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists

10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists

10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists

10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists

10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists

10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists

10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists

10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists

10月 26 17:15:57 mina0 polkitd[680]: Unregistered Authentication Agent for unix-process

10月 26 17:15:57 mina0 systemd[1]: network.service: control process exited, code=exited

10月 26 17:15:57 mina0 systemd[1]: Failed to start LSB: Bring up/down networking.

-- Subject: Unit network.service has failed

-- Defined-By: systemd

-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel

--

-- Unit network.service has failed.

--

-- The result is failed.

10月 26 17:15:57 mina0 systemd[1]: Unit network.service entered failed state.

10月 26 17:15:57 mina0 systemd[1]: network.service failed.

Solution:

# systemctl stop NetworkManager

# systemctl disable NetworkManager

Then: restart the network card:

# systemctl restart network

# ifconfig

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