Kerberos to file server

[metrol at metrol.net (Michael Collette)]

Howdy,

I may be approaching this problem entirely wrong, or not.  Was hoping for a 
little guidance one way or the other.

I've got this AS/400 with gobs of unused file storage on it that I want to 
share across as a file server to a FreeBSD box.  The AS/400 side of things 
supports NFS and kinda pretends to be a Unix like machine in this role.

Users will be booting from diskless clients hosted from the FreeBSD box.  The 
base directories like /usr and such will come from there.  I want to have 
user alterable stuff like /home and shared directories to be hosted over on 
the AS/400, as it's got all the space.

My primary problem with this is insuring one login gets you access to both the 
FreeBSD box as well as the shares on the AS/400.  I don't want to have users 
log into the FreeBSD box then need to again do a login again to the AS/400.