PowerShell: Using Active Directory .Net methods in PowerShell Part 1

There are times you don’t have access to the Active Directory PowerShell cmdlets. One of the great things about PowerShell is the ability to use .Net in PowerShell scripts. For more, check out Part 2.

Here are some alternatives to using Get-ADForest & Get-Domain:

 

# Get Active Directory Forest Information
$ADForestInfo = [System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest()
$ADForestInfo.Name
$ADForestInfo.Sites
$ADForestInfo.Domains
$ADForestInfo.GlobalCatalogs
$ADForestInfo.ApplicationPartitions
$ADForestInfo.ForestMode
$ADForestInfo.RootDomain
$ADForestInfo.Schema
$ADForestInfo.SchemaRoleOwner
$ADForestInfo.NamingRoleOwner
# OR
[System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().Name
[System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().Sites
[System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().Domains
[System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().GlobalCatalogs
[System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().ApplicationPartitions
[System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().ForestMode
[System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().RootDomain
[System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().Schema
[System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().SchemaRoleOwner
[System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().NamingRoleOwner
###
# Get Active Directory Domain Information
  # Target the current (local) computer’s domain:
  $ADDomainInfo = [System.DirectoryServices.ActiveDirectory.Domain]::GetComputerDomain()
  # Target the current user’s domain:
  $ADDomainName = [System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain()
$ADDomainInfo.Forest
$ADDomainInfo.DomainControllers
$ADDomainInfo.Children
$ADDomainInfo.DomainMode
$ADDomainInfo.Parent
$ADDomainInfo.PdcRoleOwner
$ADDomainInfo.RidRoleOwner
$ADDomainInfo.DomainControllers
# OR
[System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().Forest
[System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().DomainControllers
[System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().Children
[System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().DomainMode
[System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().Parent
[System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().PdcRoleOwner
[System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().RidRoleOwner
[System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().DomainControllers
# Note: Use [System.DirectoryServices.ActiveDirectory.Domain]::GetCOMPUTERDomain().Attribute for the local computer’s domain info.
# Example: [System.DirectoryServices.ActiveDirectory.Domain]::GetCOMPUTERDomain().Forest
###
# Get the local computer’s site information:
$LocalSiteInfo = [System.DirectoryServices.ActiveDirectory.ActiveDirectorySite]::GetComputerSite()
$LocalSiteInfo.Name
$LocalSiteInfo.Domains
$LocalSiteInfo.Subnets
$LocalSiteInfo.Servers
$LocalSiteInfo.AdjacentSites
$LocalSiteInfo.SiteLinks
$LocalSiteInfo.InterSiteTopologyGenerator
$LocalSiteInfo.Options
$LocalSiteInfo.Location
$LocalSiteInfo.BridgeheadServers
$LocalSiteInfo.PreferredSmtpBridgeheadServers
$LocalSiteInfo.PreferredRpcBridgeheadServers
$LocalSiteInfo.IntraSiteReplicationSchedule
# OR
[System.DirectoryServices.ActiveDirectory.ActiveDirectorySite]::GetComputerSite().Name
[System.DirectoryServices.ActiveDirectory.ActiveDirectorySite]::GetComputerSite().Domains
[System.DirectoryServices.ActiveDirectory.ActiveDirectorySite]::GetComputerSite().Subnets
[System.DirectoryServices.ActiveDirectory.ActiveDirectorySite]::GetComputerSite().Servers
[System.DirectoryServices.ActiveDirectory.ActiveDirectorySite]::GetComputerSite().AdjacentSites
[System.DirectoryServices.ActiveDirectory.ActiveDirectorySite]::GetComputerSite().SiteLinks
[System.DirectoryServices.ActiveDirectory.ActiveDirectorySite]::GetComputerSite().InterSiteTopologyGenerator
[System.DirectoryServices.ActiveDirectory.ActiveDirectorySite]::GetComputerSite().Options
[System.DirectoryServices.ActiveDirectory.ActiveDirectorySite]::GetComputerSite().Location
[System.DirectoryServices.ActiveDirectory.ActiveDirectorySite]::GetComputerSite().BridgeheadServers
[System.DirectoryServices.ActiveDirectory.ActiveDirectorySite]::GetComputerSite().PreferredSmtpBridgeheadServers
[System.DirectoryServices.ActiveDirectory.ActiveDirectorySite]::GetComputerSite().PreferredRpcBridgeheadServers
[System.DirectoryServices.ActiveDirectory.ActiveDirectorySite]::GetComputerSite().IntraSiteReplicationSchedule
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