Problem:
When executing the yum command, an error message appears as shown in the figure:
Solution:
Enter the configuration file directory
cd /etc/sysconfig/network-scripts
View the directory file
ls
Find the network card configuration file "ifcfg-ens33" and edit this file
vi ifcfg-ens33
Enter i to switch to insert mode, find the ONBOOT item, and change its parameter from NO to YES esc:wq Save changes and exit.
Restart the system
reboot
Recommended related tutorials: centos tutorial
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