So, I run three VPS and one rack in the closet. Currently I have Duplicati running on all four servers. What I would like to do is have one central server back up all four servers and store the backups in an offsite repository.

I’d prefer something with a good GUI. I know you purist get a hard on thinking about the CLI, and while it is a very powerful aspect of Linux, I still like a GUI.

What are my options?

Side note, I wanted to look at Bacula but their site seems nonexistent. Is Bacula defunct?