Centos replaces the network card name to eth0
After the system is installed, the name of the network card needs to be changed to eth0
Edit the configuration file to replace ens33 information with eth0, you can enter %s/ens33/eth0/g in vim command mode to replace the relevant content
Modify the kernel file and add content: net.ifnames=0 biosdevname=0
[root@nova3 ~]# vim /etc/default/grub
Use the command to regenerate the grub configuration and update the kernel parameters
[root@nova3 ~]# grub2-mkconfig -o /boot/grub2/grub.cfg
Restart the server and check that the name of the network card has been successfully replaced