Background
I am trying to configure NFS on my Windows Server 2008 with UNIX Extensions to be able to connect to Ubuntu. However in 2008 you need AD to activate User Profile Mappings. Windows can however connect to a Identity Manager Service to retrieve this information from another machine. The reason for not running AD is that the server and setup is on a home network, and therefore AD is completely unnecessary.
The Question
How and can I configure my Ubuntu machine to provide a User Profile Mapping service, and what/how would I go about setting it up on my Ubuntu machine? I need to be able to map my Windows Users to my Linux users without require AD.
The problem with using OpenLDAP is that it doesn't support Server 2008 and also I am not sharing anything from Ubuntu. Also NFS can see the shares on the Server however can't connect to them in anyway.
Current Setup
I am running Ubuntu 10.10 without any GUI. It is a headless installation mainly used to run service type software and to do some network monitoring. It does not have any shares on the box, however connects to shares on the Windows Server 2008 machine using CIFS and FSTAB mounts. However I would like to switch to NFS because symlinks won't work when running RSYNC to backup the Ubuntu box for example.