I am looking for a solution to this issue. I want to have a server dedicated for user backups for a hosting service I provide, but I want users to be able to manage their backups by logging in through a WebUI and downloading backups to their PC or deleting or whatever they need. I find FreeNAS, somewhat provides these services but I am not quite happy with it. Anyone know of something better suited to my needs?
I don't know if you already find a solution but I'm using a free solution called syncrify. It's web based, and the best of all is that uses rsync algorithms, so you just have one huge backup and after that all the data transfers is the bytes that had changes (sorry for my english, I'm from argentine) Here is the link http://web.synametrics.com/Syncrify.htm Your client can login from anywhere and download anyfile
I'm using BackupPC http://backuppc.sourceforge.net/ for my backup solutions very easy .. run rsyncd on your servers and define the folders you want to backup. setup the host in backuppc and you have a default 1 full and 6 incremental backups of your servers defined directories. You can remotely restore as well over rsync:// This works really well for all my ispconfig installations.