Is there any software that takes journaled backups for Ubuntu?
I'm currently using the built-in deja-dup, which is great. However, it backs up at most once every 24 hours (daily). Is there any way to have a backup system in Ubuntu that backs up a file every time it's changed?
Also: Could and/or would it make sense for a file-level backup system make use of ext4's journaling features? Or am I misunderstanding ext4 as a "journaling filesystem"?
EDIT: Perhaps ext4 journaling is ill-suited for this task. In that case, is there software that runs a daemon tracking real-time file changes, and backs up accordingly?