<> Network error problem :RTNETLINK answers: File exists
Error paste : [root@localhost network-scripts]# 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@localhost network-scripts]# systemctl status network.service ●
network.service - LSB: Bring up/down networking Loaded: loaded
(/etc/rc.d/init.d/network; bad; vendor preset: disabled) Active: failed
(Result: exit-code) since Tue 2020-08-18 09:43:34 HKT; 11s ago Docs:
man:systemd-sysv-generator(8) Process: 6278 ExecStart=/etc/rc.d/init.d/network
start (code=exited, status=1/FAILURE) Tasks: 1 Memory: 11.3M CGroup:
/system.slice/network.service └─856 /sbin/dhclient -1 -q -lf
/var/lib/dhclient/dhclient-98230ece-15b5-4d6f-8cba-7d406604929f-enp0s3.lease
-pf /var/run/dhclient-enp0s3.pid enp0... Aug 18 09:43:34 localhost.localdomain
network[6278]: RTNETLINK answers: File exists Aug 18 09:43:34
localhost.localdomain network[6278]: RTNETLINK answers: File exists Aug 18
09:43:34 localhost.localdomain network[6278]: RTNETLINK answers: File exists
Aug 18 09:43:34 localhost.localdomain network[6278]: RTNETLINK answers: File
exists Aug 18 09:43:34 localhost.localdomain network[6278]: RTNETLINK answers:
File exists Aug 18 09:43:34 localhost.localdomain network[6278]: RTNETLINK
answers: File exists Aug 18 09:43:34 localhost.localdomain systemd[1]:
network.service: control process exited, code=exited status=1 Aug 18 09:43:34
localhost.localdomain systemd[1]: Failed to start LSB: Bring up/down
networking. Aug 18 09:43:34 localhost.localdomain systemd[1]: Unit
network.service entered failed state. Aug 18 09:43:34 localhost.localdomain
systemd[1]: network.service failed. [root@localhost network-scripts]# cd
/etc/udev/rules.d/70-persistent-net.rules -bash: cd:
/etc/udev/rules.d/70-persistent-net.rules: No such file or directory
I started looking for a lot of ways , What changes mac address , close NetworkManager It's no use

terms of settlement :NetworkManager And restart the network directly
// Close first NetworkManager service NetworkManager off service NetworkManager stop
// Turn off the network card ifdown enp0s3 //enp0s3 It's my network card name , File name ifcfg-enp0s3,ifdown Indicates that the network is disabled : // Then restart the network
systemctl restart network

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