|
Lesson 3
Deploying Role-Specific GPOs
9-35
Tip
If you plan to create a hierarchy of organizational units that includes
domain controllers
in one of the role-specific containers, you will not be able to move the
Domain Controllers
organizational unit object that Windows Server 2003 creates automatically at
domain cre-
ation to another location in the tree. However, you can create a new
organizational unit object
in the hierarchy and move the computer objects there from the Domain
Controllers container.
To create security configurations for the servers in the role-specific
organizational units,
you create a new GPO for each container. When you do this, the policy
settings in the
GPOs linked to the role-specific containers take precedence over the
settings for the
same policies in the parent container’s GPO. The rules governing the
combination of
inherited and direct policy settings are as follows:
■
If the parent container’s GPO contains a policy setting, and the same policy
is
undefined in the child container’s GPO, the objects in the child container
use the
setting from the parent GPO.
■
If the child container’s GPO contains a policy setting, and the same policy
is unde-
fined in the parent container’s GPO, the objects in the child container use
the set-
ting from the child GPO.
■
If the parent container’s GPO contains a policy setting, and the same policy
has a
different setting in the child container’s GPO, the objects in the child
container use
the setting from the child GPO.
Real World GPO Combination
When you apply multiple GPOs to a container, whether with multiple links or
with a hierarchical GPO arrangement, it is important to understand the
differ-
ence between an undefined policy and an explicit policy setting. An
undefined
policy is not necessarily the same as a Disabled setting. When you leave a
pol-
icy undefined in the GPO, the computers to which that GPO applies use the
operating system’s default setting, which might be Enabled, Disabled, or
some-
thing else, depending on the policy. If you define a policy with an Enabled
value in the parent container’s GPO, you must explicitly define the same
policy
in the child container’s GPO to assign it a different value, even if that
value is
the same as the Windows Server 2003 default setting.
Practice: Deploying Multiple GPOs
In this practice, you use two different methods to combine the policies in
the GPOs
you created for the Member Servers and Domain Controllers organizational
units in
the practices for Lessons 1 and 2 of this chapter. First, you link both GPOs
to a sin-
gle container and modify the order in which the system applies them. Then,
you
|