I have 3 servers:

  • my house
  • my sister house
  • my parents house

My server has a lot of services (Nextcloud and Immich the ones that use more space), the other 2 servers only have Home Assistant, Frigate and some shared folders. On my server I use Backrest to backup locally and on Wasabi, the other 2…well…are not backed up 🙈 …yet!

I was thinking to buy a couple of 14/20TB drives and install them in my parents and sister servers so that each server can backup data on the other 2. The backup will be done locally on all the servers with Backrest. How do I copy the backups across servers? Should I use Syncthing or is it better to use one repository per location on each Backrest? Or…other ideas?

Thanks!

  • Possibly linuxEnglish
    2•9 days ago

    You don’t want to send as that’s means that an adversary can delete the backups.

    Make each one do a pull instead.

      • Possibly linuxEnglish
        1•9 days ago

        Configure each backup machine to read from the data you are backing up

        • @[email protected]English
          2•9 days ago

          You can do it that way, but I don’t see how that’s more secure. Fewer server bits to maintain I guess?

          • EarMasterEnglish
            4•9 days ago

            I think what he means is that if your backup is triggered from your main server and your main server is compromised the backups can also be attacked immediately. If the backup is requested from the backup machine you will at least have the time between the attack and the next backup to prevent the attack from reaching your backup machines.

        • @[email protected]OPEnglish
          1•9 days ago

          I’m sorry, but I still don’t understand what you mean. Could you please elaborate bit? Thanks!

          • Possibly linuxEnglish
            1•9 days ago

            You configure the backup systems to connect to the device to be backed up. The idea is if something bad happens on the main machine it won’t impact the backups