Best way to do a VPS Backup (Ubuntu)

[Me.B]

If you use a VPS, it's trivial you can do easily snapshots for backup and that do the trick.

If you want to do it on your side, depend on your goal. Full restore in one wave, then you need to have a low level disk backup system, or restoring DB, Emails, websites and key config files, then you will need to build a strategy for each services with it's requirement.

M B