What's a good portable backup-tool, for a bunch of Linux/Windows machines? It should only backup data-folders specified by the user, doesn't need to be full images of the system.
Ideally, the backup target could be a network share/linux server; what's important is that the clients run both Linux and Windows, and I'd like a single solution for all of them. Ah and it should work on x64 Win7 ;)
Is such a tool out there?