Red Hat DIRECTORY SERVER 8.0, Administration Manual

Page: 326 / 552

Chapter 9. Extending the Directory Schema
308
Field Description
Name The name of the attribute.
OID The object identifier of the attribute. An OID is
a string, usually of dotted decimal numbers,
that uniquely identifies an object, such as an
object class or an attribute. If an OID is not
specified, the Directory Server automatically
uses
attribute_name
-oid
. For example, if the
attribute
birthdate
is created without supplying
an OID, the Directory Server automatically uses
birthdate-oid
as the OID.
WARNING
Using an alphanumeric OID such
as
birthdate-oid
is deprecated
and strongly discouraged because it
will lead to interoperability problems.
Red Hat strongly encourages that
you request your own OID prefix
from IANA (Internet Assigned
Number Authority). For more
information about OIDs or to
request a prefix, email IANA at
mailto:iana@iana.org
, or visit the
IANA website at
http://www.iana.org/
.
Syntax Sets the syntax for the attribute values. The
attribute syntax can be, for example, any of the
following:
Case Ignore String — Values for this attribute are
not case-sensitive.
Case Exact String — Values for this attribute are
case-sensitive.
Distinguished Name — Values for this attribute
are DNs.
Binary — Values for this attribute are binary.
Telephone Number — Values for this attribute
are in telephone number format.
Integer — Values for this attribute are numbers.
There are many more syntaxes available for
attributes.
Multi If the attribute is multi-valued, an X appears in
this column; otherwise, this field is blank. If this is
not checked, the Directory Server only allows a
single value for this attribute.
Table 9.1. Attributes Tab Reference