As the title says, i recently printed a nice case for my RPi3 and HDD that intend to run as an offsite backup machine.
Looking for recommendations on what backup service to run. I want to backup my Nextcloud and a "changes only" backup/cloning solution would be optimal but i have yet to find one.
Rsync has a bunch of downsides though. It only gives you one backup, any corrupted files will be mirrored in their corrupted state with no way to go back to an old version, and if the client system is hacked, the attacker can delete the remote backups. Not ideal.
Something like Borgbackup is much better. It dedupes blocks so storing months of daily backups isn't an issue, and it has an "append-only" mode that prevents the client from deleting backups. Even if the client system is hacked, the attacker can't delete the backups.