need help with NFS and user authentication

[Alex Dean]

I have set up an Ubuntu file server on my home network.  I have 2 OSX  
workstations (mine and my wife's), and an Ubuntu laptop.  We each have  
an account on each computer.  I'm trying to figure out how to allow my  
user account on any computer to mount my home directory on the file  
server, and to allow my wife's account on any computer mount her home  
directory on the file server.

I don't want to move our home directories entirely onto the  
fileserver.  Primarily we want to continue using the local machines as  
we always have.  We just want to add the ability to easily store files  
on the network and have them accessible from any other machine.

I have had no problems creating exports on the file server, and I've  
had no problems mounting those exports from the client machines.  The  
problems thusfar have been uid mismatches.  I could probably change  
uids everywhere so they all match on all machines, but this seems 1.  
klunky and 2. really insecure.

I think there are ways to solve this kind of problem with Kerberos or  
LDAP, but those are technologies I know very little about.  If someone  
could point me in the right direction, I'd really appreciate it.  How  
would you solve this problem?  I'm happy to research and learn what I  
need to learn, but I find I'm having a hard time even getting started.

thanks,
alex
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