I recently upgraded my homelab with an Unraid for media flexibility and keep main data in TrueNAS, and now I wonder what is the best backup service? Do I use rsync with ssh (opening ssh in Unraid - potentially protecting it with Fail2Ban) or do I mount the unraid share to TrueNAS for a safer backup?
Would Syncthing be better? I tried it before and since I use the storage in proxmox and docker (different host), the permissions are running into errors.
Just wondering what more experienced folks recommend. Thanks!