I work for a pc consulting firm. We have about 4 linux boxes around town set to do qmail/ftp/etc. I'm starting to worry about what if a major problem happens and a server takes a nap. Basicly what I want to do is have a server at our office and have the remote servers back up to that box. The backup server would be dedicated to only that. Ideally it would keep seperate directories of each server. Kinda like ghost. Or it would just back up the important files ie: /var/qmail or /var/ftp stuff. Would I use rsync for this? Is there a better and more secure way to backup offsite? Is there a OS dedicated to this task only? I'm open for ANY ideas or suggestions.

Thank you

Justyn