Veeam Guide to Linux Backups
Veeam has a guide on backing up Linux systems which I suspect is to help them to announce their new Linux Endpoint Backup product that is in beta now. Free video (about fifty minutes) that covers some stuff about Linux backups. You have to sign up, but the video is free.
Hey, that's our @Rick-Vanover in that video!
I'm currently working in the Beta with it. So far, it has been working great!