Proxmox Backup Server (PBS) snapshotting all my VM's / LXC's.

External VPS' and anything that can't run PBS-Client I am rsync'ing important data into my home network first, then doing a file based backup of that data to PBS via PBS-Client tool. All this is automated through cron jobs.

Those backups then get sync'd to a 2nd datastore for a bit of redundancy.

My approach is using Nginx and wildcard subdomains. The specific subdomain name that accesses the service is not listed in DNS anywhere and just knowing the IP address doesn't get you anything since m.y.i.p:443 is just getting you an nginx landing page.