This self-answered question addresses the following scenario:

How can I write a PowerShell script to check if a computer is a domain controller or not?

CodePudding user response：

Yes, if you need to check a list then that's fine, but if all you need is a list of DCs, then more efficient to get this directly.

$DomainName = 'MyDomain'

$DomDetail = Get-ADDomain -Identity $DomainName
$DCDetail = Get-ADDomainController -Server $DomDetail.PDCEmulator -Filter *
[pscustomobject]@{Name = $DomDetail.NetBIOSName;FQDN = $DomDetail.DNSRoot;PDC = $DomDetail.PDCEmulator;MemberDCs = $DCDetail}

CodePudding user response：

The code below can be run on Windows PowerShell. It will take an input list of computers called computers.csv and loop around them to check if it is a domain controller or not and then output the result into check_for_domain_controller.csv

$listofcomputers = Import-CSV -Path "C:\computers_list.csv"

foreach ($computerobject in $listofcomputers)
{
    $computername = $computerobject.Name
    Get-DomainRole -Computername $computername | 
    Export-csv -Path "C:\check_for_domain_controller.csv" -Append -NoTypeInformation
} 

Input (computers.csv)

Name  
DC1  
DC2  
DC3  
DC4  
PC1  
PC2  

Output (check_for_domain_controller.csv)

"Computer","IPAddress","PCType","DomainRole"  
"DC1","10.10.10.1","Desktop","Domain controller"  
"DC2","110.10.10.2","Desktop","Domain controller"  
"DC3","10.10.10.3","Desktop","Domain controller"  
"DC4","10.10.10.4","Desktop","Domain controller"  
"PC1","10.10.10.5","Desktop","Member server"  
"PC2","10.10.10.6","Desktop","Member server"