Get-GPInheritance
Retrieves Group Policy inheritance information for a specified domain or OU.
Syntax
Get-GPInheritance
[-Target] <String>
[-Domain <String>]
[-Server <String>]Description
The Get-GPInheritance cmdlet returns information about Group Policy inheritance for a specified domain or OU.
This information includes the following:
A list of GPOs that are linked directly to the location (the GpoLinks property).
A list of GPOs that are applied to the location when Group Policy is processed on a client (the InheritedGpoLinks property).
Whether inheritance is blocked for the location (the GpoInheritanceBlocked property).
Note: The InheritedGpoLinks property contains a list of the GPOs are applied to the OU or domain when Group Policy is processed on a client;. The GPOs are listed according to the order of precedence with which they are applied. This list includes (in the following order):
Inherited GPOs that are linked, enabled, and enforced at higher levels of the Group Policy hierarchy (for example, a site).
GPOs that are linked and enabled directly at the specified location.
If inheritance is not blocked for the specified location, inherited GPOs that are linked and enabled -- but not enforced -- at higher levels of the Group Policy hierarchy.
Examples
-------------------------- EXAMPLE 1 --------------------------
C:\PS>Get-GPInheritance -target "ou=MyOU,dc=contoso,dc=com"
ContainerName : myou
ContainerType : OU
Path : ou=myou,dc=contoso,dc=com
GpoInheritanceBlocked : No
GpoLinks : {TestGPO-0, TestGPO-1, TestGPO-2, TestGPO-3...}
InheritedGpoLinks : {TestGPO-2, TestGPO-3, Default Domain Policy}Description
This command retrieves Group Policy inheritance information for the OU named 'MyOU' in the contoso.com domain.
The GpoLinks property contains a list of all the GPOs that are linked directly to the GPO, whether their links are enabled or not.
The InheritedGpoLinks property contains a list of all the GPOs that are applied when Group Policy is processed on the client. TestGPO-2 and TestGPO-3 appear in this list because their links are enabled.
The "Default Domain Policy" GPO is inherited from the contoso.com domain. If inheritance is blocked, it does not appear in the InheritedGpoLinks property unless its link is enforced (at the domain). If its link is enforced, it appears first in the list.
-------------------------- EXAMPLE 2 --------------------------
C:\PS>Get-GPInheritance -Target "dc=contoso,dc=com" -Domain contoso.com -Server DomainController1
Name : contoso.com
ContainerType : Domain
Path : dc=contoso,dc=com
GpoInheritanceBlocked : No
GpoLinks : {Default Domain Policy}
InheritedGpoLinks : {Default Domain Policy}Description
This command retrieves Group Policy inheritance information for the contoso.com domain. The domain controller with the host name DomainController1 is contacted to complete the operation.
Note: The domain does not have to be explicitly specified (by using the Domain parameter) in this example. If the domain of the user that is running the session (or, for startup and shutdown scripts, the computer) is the same as the target domain, or a trust exists between it and the target domain, you do not have to specify the Domain parameter.
-------------------------- EXAMPLE 3 --------------------------
C:\PS>(Get-GPInheritance -Target "ou=myou,dc=contoso,dc=com").GpoLinks | foreach-object { Get-GPO -Name ($_.DisplayName)}
DisplayName : TestGPO-3
DomainName : contoso.com
Owner : CONTOSO\Domain Admins
Id : d02126d4-82e8-4e87-b4a0-2d44b6891411
GpoStatus : AllSettingsEnabled
Description :
CreationTime : 2/27/2009 2:59:51 PM
ModificationTime : 2/27/2009 4:00:44 PM
UserVersion : AD Version: 13, SysVol Version: 13
ComputerVersion : AD Version: 0, SysVol Version: 0
WmiFilter :
DisplayName : TestGPO-2
DomainName : contoso.com
Owner : CONTOSO\Domain Admins
Id : 375865b2-3b5f-480f-8f56-2a994ea6e725
GpoStatus : AllSettingsEnabled
Description :
CreationTime : 2/26/2009 11:28:08 PM
ModificationTime : 3/1/2009 11:07:30 AM
UserVersion : AD Version: 0, SysVol Version: 0
ComputerVersion : AD Version: 1, SysVol Version: 1
WmiFilter :Description
This command evaluates the SOM object (Microsoft.GroupPolicy.SOM) returned by Get-GPInheritance and returns the GPOs that are linked to the "MyOU" organizational unit. You can use this command to set properties of the GPOs by piping its output into other cmdlets. For example, you can pipe the output to the Set-GPPermissions command to delegate permissions to administrators of the OU for each of the GPOs linked to the OU.
The GpoLinks property of the SOM object contains a list of all the GPO links for the OU. Each object in this list is of type Microsoft.GroupPolicy.GpoLink. The following shows one such object:
GpoId : d02126d4-82e8-4e87-b4a0-2d44b6891411
DisplayName : TestGPO-3
Enabled : True
Enforced : False
Target : ou=myou,dc=contoso,dc=com
Order : 1
The collection is piped into a foreach-object command, which retrieves each GPO by using the DisplayName property of the GpoLink object.
Parameters
-Domain
Specifies the domain for this cmdlet. You must specify the fully qualified domain name (FQDN) of the domain (for example: sales.contoso.com).
For the Get-GPInheritance cmdlet, this is typically the domain of the container (domain or OU) for which you want to retrieve inheritance information. If the specified domain is different than the domain of the container, a trust must exist between the two domains.
If you do not specify the Domain parameter, the domain of the user that is running the current session is used. (If the cmdlet is being run from a computer startup or shutdown script, the domain of the computer is used.) For more information, see the Notes section in the full Help.
If you specify a domain that is different from the domain of the user that is running the current session (or, for a startup or shutdown script, the computer), a trust must exist between that domain and the domain of the user (or the computer).
You can also refer to Domain by its built-in alias, "domainname". For more information, see about_Aliases.
| Type: | String |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | True |
| Accept wildcard characters: | False |
-Server
Specifies the name of the domain controller that this cmdlet contacts to complete the operation. You can specify either the fully qualified domain name (FQDN) or the host name. For example:
FQDN: DomainController1.sales.contoso.com
Host Name: DomainController1
If you do not specify the name by using the Server parameter, the PDC emulator is contacted.
You can also refer to Server by its built-in alias, "dc". For more information, see about_Aliases.
| Type: | String |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-Target
Specifies the domain or the OU for which to retrieve the Group Policy inheritance information by its LDAP distinguished name. For example, the "MyOU" organizational unit in the contoso.com domain is specified as "ou=MyOU,dc=contoso,dc=com".
You can also refer to the Target parameter by its built-in alias, "path". For more information, see about_Aliases.
| Type: | String |
| Position: | 1 |
| Default value: | None |
| Required: | True |
| Accept pipeline input: | True |
| Accept wildcard characters: | False |
Inputs
Microsoft.GroupPolicy.Som
An object that represents a domain or an OU.
Outputs
Microsoft.GroupPolicy.Som
Get-GPInheritance returns an object that represents the domain or OU. The GpoInheritanceBlocked property indicates whether inheritance is blocked. You can modify inheritance for the domain or OU by using the Set-GPInheritance cmdlet.
Notes
You can use the Domain parameter to explicitly specify the domain for this cmdlet.
If you do not explicitly specify the domain, the cmdlet uses a default domain. The default domain is the domain that is used to access network resources by the security context under which the current session is running. This domain is typically the domain of the user that is running the session. For example, the domain of the user who started the session by opening Windows PowerShell from the Program Files menu, or the domain of a user that is specified in a runas command. However, computer startup and shutdown scripts run under the context of the LocalSystem account. The LocalSystem account is a built-in local account, and it accesses network resources under the context of the computer account. Therefore, when this cmdlet is run from a startup or shutdown script, the default domain is the domain to which the computer is joined.
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