Get-ADDomain

Get an Active Directory domain.

Syntax
      Get-ADDomain [-Current {LocalComputer | LoggedOnUser}]
         [-AuthType {Negotiate | Basic}] [-Credential PSCredential]
            [-Server string] [CommonParameters]

      Get-ADDomain [-Identity] ADDomain 
         [-AuthType {Negotiate | Basic}] [-Credential PSCredential]
            [-Server string] [CommonParameters]

Key
   -AuthType {Negotiate | Basic}
       The authentication method to use: Negotiate (or 0), Basic (or 1)
       A Secure Sockets Layer (SSL) connection is required for Basic authentication.

   -Credential PSCredential
       The user account credentials to use to perform this task.
       The default credentials are those of the currently logged on user unless the
       cmdlet is run from an Active Directory PowerShell provider drive.
       If the cmdlet is run from such a provider drive, the account associated with the drive is the default.

       Type a user name, such as "User64" or "Domain64\User64" or specify a
       PSCredential object such as one generated by Get-Credential 

       If a user name is specified, the cmdlet will prompt for a password.

   -Current ADCurrentDomainType
       Whether to return the domain of the local computer or the current logged on user (CLU). 
       Possible values: LocalComputer (or 0), LoggedOnUser (or 1)

    -Identity ADDomain
       An AD domain object, provide one of the following values:
       (The identifier in parentheses is the LDAP display name for the attribute.)

          Distinguished Name
            Example: DC=aberdeen,DC=SS64,DC=com
          GUID (objectGUID)
            Example: 599c3d2e-f72d-4d20-8a88-030d92495f22
          Security Identifier (objectSid)
            Example: S-1-5-21-3164297888-301567370-
          DNS domain name
            Example: aberdeen.SS64.com
          NetBIOS domain name
            Example: aberdeen

       The cmdlet searches the default naming context or partition to find the object.
       If two or more objects are found, the cmdlet returns a non-terminating error.

       This parameter can also get this object through the pipeline or you can set this
       parameter to an object instance.

       This example shows how to set the parameter to a distinguished name.
          -Identity  "aberdeen.SS64.com"

       This example shows how to set this parameter to a optional feature object instance named "domainInstance".
          -Identity $domainInstance

   -Server string
       The AD Domain Services instance to connect to, this may be a Fully qualified domain name,
       NetBIOS name, Fully qualified directory server name (with or without port number)

   CommonParameters:
       -Verbose, -Debug, -ErrorAction, -ErrorVariable, -WarningAction, -WarningVariable,
       -OutBuffer -OutVariable.

Set-ADDomain modifies the properties of an AD domain. Commonly used property values may be set using the cmdlet parameters, other property values can be modified by using the -Add, -Replace, -Clear and -Remove parameters.

The -Identity parameter specifies the domain to modify. Specify a domain by its distinguished name (DN), GUID, security identifier (SID), DNS domain name, or NetBIOS name.

The -Instance parameter provides a way to update a domain object by applying the changes made to a copy of the domain object. When you set the -Instance parameter to a copy of an AD domain object that has been modified, Set-ADDomain can then save the changes to the original domain object. To get a copy of the object to modify, use Get-ADDomain. When you specify the -Instance parameter you should not pass the identity parameter.

The following examples show how to modify the ManagedBy property of a domain object by using three methods:
-By specifying the -Identity and the -ManagedBy parameters
-By passing a domain object through the pipeline and specifying the -ManagedBy parameter
-By specifying the -Instance parameter.

Method 1: Modify the ManagedBy property for the Aberdeen domain by using the -Identity and -ManagedBy parameters.

Set-ADDomain -Identity Aberdeen -ManagedBy JaneJacobs

Method 2: Modify the ManagedBy property for the Aberdeen domain by passing the Aberdeen domain through the pipeline and specifying the -ManagedBy parameter.

Get-ADDomain Aberdeen | Set-ADDomain -ManagedBy JaneJacobs

Method 3: Modify the ManagedBy property for the Aberdeen domain by using the PowerShell command line to modify a local instance of the Aberdeen domain. Then set the -Instance parameter to the local instance.

$domain = Get-ADDomain Aberdeen
$domain.ManagedBy = JaneJacobs
Set-ADDomain -Instance $domain.

Examples

Get the domain information for the domain SS64.com

PS C:\> Get-ADDomain SS64.com

Get the domain information of the current local computer domain:

PS C:\> Get-ADDomain -Current LocalComputer

Get the domain information for the domain of the currently logged on user:

PS C:\> Get-ADDomain -Current LoggedOnUser
PS C:\> Get-ADDomain

“In order to be an immaculate member of a flock of sheep, one must above all be a sheep oneself” ~ Albert Einstein

Related:

Set-adDomain - Modify an AD domain.
Get-adDomainController - Get one or more AD domain controllers, based on name or search criteria.


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