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!

  • rumba@lemmy.zipEnglish
    2·
    6 hours ago

    I use sync thing with untrusted keys. That way the data ends up in multiple locations but it’s not accessible remotely. If you don’t care about the data and the locations you don’t have to do that but it’s a nice feature.

  • BCsven@lemmy.caEnglish
    12·
    15 hours ago

    Configure and Pre backup the drives before bringing them to family members to save yourself some bandwidth

      • BCsven@lemmy.caEnglish
        2·
        12 hours ago

        As for the other question in thr post: If you are using btrfs or zfs I believe both of those have a send function that operates at a block level and will only send block changes rather than full file changes

  • Possibly linux@lemmy.zipEnglish
    2·
    12 hours 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.

  • just_another_person@lemmy.worldEnglish
    51·
    15 hours ago

    Tailscale+Headscale or Zerotier, use whatever backup software you want for the local backups. Simple script to rsync backups to other sites and remove copies past a certain age.

    Pretty simple, and no need to expose machines in any less than safe ways.

      • just_another_person@lemmy.worldEnglish
        21·
        15 hours ago

        Tailscale is both a client and server. If you use only Tailscale, you have to pay for the service after so many devices are connected, which by all means support the company and do so and avoid using Headscale.

        Headscale is an open source implementation of the Tailscale service, so it’s free to use with all the usual Tailscale clients published. You setup Headscale somewhere, register your Tailscale clients to it, and use it like usual. It’s just skipping the need to pay for Tailscale servers as a service, and gives you greater control over how traffic routed. Completely optional.

        • NotKyloRen@lemmy.zipEnglish
          1·
          8 hours ago

          Yeah but it’s like 100 devices, I think. And I believe 3 users (meaning under one account; sharing a device with someone who makes their own account doesn’t count as a “user”). You’re right, but they’re pretty generous.

          I don’t think it takes many resources to provide the service to consumers; it’s not like you’re using any of their bandwidth (minus the tiny amount used for coordination between clients). Oh, or if you use their DERP servers (encrypted, but still).

          In general, people should know there are self hosted, truly private options, though. So thanks for mentioning Headscale.

  • piefood@feddit.onlineEnglish
    2·
    14 hours ago

    I use rsync for a similar system. One of the nice things is that you can set a bandwidth limit so that it doesn’t saturate your family’s internet connections.

  • HelloRoot@lemy.lolEnglish
    41·
    16 hours ago

    I’d do it like this:

    • borg backup

    • (optional) borgmatic for easier use, but a diy shell script might suffice

    • (optional) https://github.com/Ravinou/borgwarehouse for easier gui based “serverside” setup on each location

    • (if you have no way to reach the servers from the internet yet) set up dyndns for each location so you can reach them by domain

    • might need to setup portforwarding rules in the router of each location