Symptom:
Network exception handling record of RHEL7 restart: Failed to start LSB: Bring up/down networking. After the server is restarted and the network is configured, the network service fails to be restarted, and the following error message is displayed:
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.
After you run the systemctl status network. service command as prompted, the following error information is displayed:
network.service - LSB: Bring up/down networkingLoaded: loaded (/etc/rc.d/init.d/network; bad; vendor preset: disabled)Active: failed (Result: exit-code) since 5 2017-07-14 19:01:47 CST; 1min 16s agoDocs: man:systemd-sysv-generator(8)Process: 4681 ExecStart=/etc/rc.d/init.d/network start (code=exited, status=1/FAILURE)CGroup: /system.slice/network.service└─1192 /sbin/dhclient -H mini1 -1 -q -lf /var/lib/dhclient/dhclient--ens33.lease -pf /v...July 14 19:01:47 mini1 network[4681]: RTNETLINK answers: File existsJuly 14 19:01:47 mini1 network[4681]: RTNETLINK answers: File existsJuly 14 19:01:47 mini1 network[4681]: RTNETLINK answers: File existsJuly 14 19:01:47 mini1 network[4681]: RTNETLINK answers: File existsJuly 14 19:01:47 mini1 network[4681]: RTNETLINK answers: File existsJuly 14 19:01:47 mini1 network[4681]: RTNETLINK answers: File existsJuly 14 19:01:47 mini1 systemd[1]: network.service: control process exited, code=exited status=1July 14 19:01:47 mini1 systemd[1]: Failed to start LSB: Bring up/down networking.July 14 19:01:47 mini1 systemd[1]: Unit network.service entered failed state.July 14 19:01:47 mini1 systemd[1]: network.service failed.
Solution:
Run the following command:
[root@host1 -]# systemctl stop NetworkManager [root@host1 -]# systemctl restart network.service
