As an administrator, you may receive messages that refer to users by UID and to groups by GID. You need to make sure that the UIDs and GIDs have the same meaning everywhere.
By default, the PMDB attempts to use the same UIDs and GIDs for new users and groups everywhere, but you can help by providing the necessary conditions from the start. Start with identical passwd files and identical group files, making sure that the synch_uid token in the pmd.ini file is set to yes. If your local database is a subscriber to your PMDB, and the PMDB is the only source of new users and new groups for your subscriber databases, then you can depend on compatibility between the UIDs and between the GIDs of your local database, your PMDB, and your PMDB subscribers.
If you create a new user with a UID that is already in use in the PMDB or in some other subscriber computer, the subscriber's individual update fails; but in all other subscriber computers where no such conflict exists, the update succeeds.
An alternative to synchronizing your passwd and group files is to explicitly specify the UID of each new user and the GID of each new group.
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