list domain controllers with powershell

for my own edification and later reference.

 

to start, let's grab the current domain.

$myDomain = [System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain()

 

just for fun, we’ll look at the forest.

$myDomain.Forest

 

now, let’s list the domains of the forest.

$myDomain.Forest.Domains

 

this will count every domain controller in every domain.

$myDomain.Forest.Domains | % { $_.DomainControllers.Count }

 

for a final count, we’ll add all the numbers together into $myCount.

$myDomain.Forest.Domains | % { $myCount = $_.DomainControllers.Count + $myCount}

 

to list all of the domain controllers, we can run this command.

$myDomain.Forest.Domains | % { $_.DomainControllers } | Select-Object name

 

finally, another way to count all of the domain controllers in the forest.

($myDomain.Forest.Domains | % { $_.DomainControllers } | Select-Object name).count