Dell KVM 1082DS - Manual (Page 116)

106 xxx | LDAP Feature for the RCS xxx
aspects of AD. DNS is used to determine the network coordinates of each
Domain Controller so that the Dell RCSs can gracefully handle situations where
some Domain Controllers are not available on the network. DNS SRV records
are used for this purpose so the Dell RCSs always attempt to contact alternative
Domain Controllers at the nearest site first, depending on the administrative
settings configured in the SRV records.
Object Classes
Within each domain, there is another hierarchy of objects designed to store
information about various entities and groupings of entities. Such entities are
represented in AD by object classes used to define “containers” that help
organize groupings of objects. Other object classes represent entities such as
network users, computers, printers, or network services. Two types of container
object classes are of special interest: Group and Organizational Unit (OU).
These two object classes allow the AD Administrator to define groupings of
entities for the purpose of simplifying the application of access controls and
other administrative policies. For example, a domain may be configured to have
an OU container named Engineering, which contains several Group objects
named according to function, like Hardware, Software, and Support; each of the
groups is configured with a membership list of User objects and perhaps
Computer objects. Yet another level of hierarchy can be configured by nesting
groups; a nesting is formed by including the name of a Group object in the
membership of another Group object. It should be noted here that each AD
Group object has an associated scope that is used to configure the types of
nesting relationships it is allowed to have with other groups; for example, when
scope is set to Universal, the group may participate in nesting that crosses
domain boundaries but when scope is set to Local it may not participate in
such nesting. Rules for nesting are available in the AD product documentation
available from Microsoft. The suite of Dell RCSs is designed to support all
nesting rules defined for AD.