Hi! A friend just recommended the backup tool that comes with Ubuntu. I took a look at it and was wondering what you guys include and exclude from the backups. I just installed wire guard VPN and but the config file in the etc/wireguard folder, where it belongs. I would have to include this folder as well if I want to keep my configs. And I guess many programs do the same, so how do you know what to include, so you can just revert to the last backup if something breaks or you get a new machine? Maybe that is a stupid question, but it was going through my head for some time now. Thanks a lot!
I take a btrfs snapshot of my root partition daily so I can easily revert to an older version if I break something or get a bad update. There’s nothing on my desktop or laptop root partition that can’t be easily replaced, so I don’t bother with any backups apart from the snapshots.
On my server, I keep multiple backups of /etc/ since there is a lot of stuff in there that I manually setup.
If you just want to backup the configuration, you can backup the entire /etc/ directory, it will only take a few MB when compressed.