documentation/Examples/Debian/Restore Old Interface Names.md

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###### Procedure
1. Sign in as root user
2. Open `/etc/default/grub` with nano, e.g.
```
nano /etc/default/grub
```
3. Add `net.ifnames=0` to the `GRUB_CMDLINE_LINUX_DEFAULT` option, e.g.
```
GRUB_CMDLINE_LINUX_DEFAULT="... net.ifnames=0"
```
!!! warning "Caution"
Be mindful of the existing options set for `GRUB_CMDLINE_LINUX_DEFAULT`. Append `net.ifnames=0` to the end of them if they exist. The `...` in the example above indicates an indeterminate amount of options irrelevant to the guide.
4. Save and run `update-grub && reboot`
5. Finally, run `ip address` to inspect network interfaces for names like `eth0` and `eth1`