PowerShell: Useful Active Directory .NET Methods

  

[Active Directory Forest]:

• Name:
• [System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().Name
• Application Partitions: 
• [System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().ApplicationPartitions
• Sites: 
• [System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().Sites
• Global Catalogs:  
• [System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().GlobalCatalogs
• Domains: 
• [System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().Domains
• Functional Level: 
• [System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().ForestMode  
• Root Domain: 
• [System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().RootDomain
• Schema DN/Role: 
• [System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().Schema
• FSMO - Schema Master: 
• [System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().SchemaRoleOwner
• FSMO - Domain Naming Master:  
• [System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().NamingRoleOwner

[Active Directory Domain]:

 * If you need this information from the computer's domain you're running this on, switch out GetCurrentDomain() for GetComputerDomain() and all of these will work as well.

• FSMO - Infrastructure Master:  
• [System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().InfrastructureRoleOwner
• FSMO - PDC Emulator: 
• [System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().PdcRoleOwner
• FSMO - RID Master: 
• [System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().RidRoleOwner
• Domain Controllers: 
• [System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().DomainControllers
• Functional Level: 
• [System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().DomainMode
• Domain Parent:
• [System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().Parent
• Functional Level:
• [System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().DomainMode
• Child Domains:
• [System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().Children
• Forest:
• [System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().Forest
• Name:
• [System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().Name

[Computer Specific]:

• Site: 
• [System.DirectoryServices.ActiveDirectory.ActiveDirectorySite]::GetComputerSite()
• User Domain: 
• [System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().Name
• Computer Domain:  
• [System.DirectoryServices.ActiveDirectory.Domain]::GetComputerDomain().Name