[Beowulf] NIS to LDAP gateway

[Mark Hahn]

> authentication on the cluster.  I really don't want to have to set up a
> full-fledged LDAP environment on the head node, or change my address space and
> start routing packets between the cluster and the outside world.  I've heard

an ldap slave on the head node makes a fair bit of sense.
it can still be automatically synced to the "enterprise" ldap,
and compute nodes can refer to it alone.  excepting /etc/passwd
(either on nfs root or somehow rsynced), I'd consider this 
kind of ldap setup to be the norm these days.