LDAP-UX Client Services B.04.00 with Microsoft Windows 2000/2003 Active Directory Administrator's Guide

Active Directory Multiple Domains
Resolving Duplicate Entries
Chapter 368
Example
The following example explains what to expect when your user accounts
are not unique in the forest.
Assume the user account jimmy resides in domainA, domainB, and
domainC simultaneously:
If domain A is the local domain, jimmy in domainA will log into
HP-UX client.
If all three domains are remote domains, and are configured in the
sequence: domainB, domainC, domainA, then jimmy in domainB, the
first domain in the configuration, will log into HP-UX client.
If all three domains are remote domains, and the GCS is selected,
then jimmy cannot log into HP-UX client at all since LDAP-UX
cannot distinguish which jimmy is preferred (when duplicate entries
exist for GCS, none is valid).
If all three domains are remote domains, domainC is included in
your remote domain configuration, and GCS is selected, then jimmy
in domainC logs into HP-UX client.
If the user name jimmy is unique in the forest, but the uid number is not
unique, jimmy can log into the HP-UX client, but depending on if the uid
number can be returned, he may have problems changing his password
using the passwd command.