Red Hat DIRECTORY SERVER 7.1, Installation Manual

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Glossary 79
object identifier
Also OID. A string, usually of decimal numbers, that uniquely identifies a schema element, such
as an object class or an attribute, in an object-oriented system. Object identifiers are assigned by
ANSI, IETF or similar organizations.
OID
See object identifier .
operational attribute
Contains information used internally by the directory to keep track of modifications and sub-
tree properties. Operational attributes are not returned in response to a search unless explicitly
requested.
P
parent access
When granted, indicates that users have access to entries below their own in the directory tree if
the bind DN is the parent of the targeted entry.
pass-through authentication
See PTA .
pass-through subtree
In pass-through authentication, the PTA directory server will pass through bind requests to the
authenticating directory server from all clients whose DN is contained in this subtree.
password file
A file on UNIX machines that stores UNIX user login names, passwords, and user ID numbers.
It is also known as /etc/passwd because of where it is kept.
password policy
A set of rules that governs how passwords are used in a given directory.