Some time back I went through the process of configuring the Apple Time Machine backup system with my Linux based network file share.
Unfortunately it is not a straight forward process but as is often the case I found a great post to show me how.
I just happen to need to go through the process again so this time thought I’d post a reference so at least I remember next time.
Here it is, great work Matthias Kretschmann:
http://www.kremalicious.com/2008/06/ubuntu-as-mac-file-server-and-time-machine-volume/