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This article will explain in detail how to change the default network card to eth0 under the Debian 9 system. The editor thinks it is very practical, so I share it with you for reference. I hope you can get something after reading this article.

There are two options.

One is to simply change the eth0 in the network card configuration file to ens3 directly, and then ifup ens3 can restore the network.

The other is to change ens3 back to the eth0 we are used to. Here is the specific operation of changing it to eth0.

Method operation

Nano / etc/default/grub

Find

GRUB_CMDLINE_LINUX= ""

Modify to

GRUB_CMDLINE_LINUX= "net.ifnames=0 biosdevname=0"

Regenerate the grub boot configuration file

Grub-mkconfig-o / boot/grub/grub.cfg

Finally, restart to restore the default Nic to eth0, and the operation is over.

This is the end of this article on "how to change the default network card to eth0 under the Debian 9 system". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it out for more people to see.

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