How to identify which systems are using a specific DNS IP

Question

We have a DNS server on win server 2008 and want to discontinue it but this is a very old server that's why too many servers are still using this server. Please suggest the way/script to identify which domain-joined systems/network cards still using that DNS IP.

I've tried many websites and scripts but nothing worked for me. Need your expert opinion,

Answer 1

Hi,

Please try the below PowerShell script. I assume you have enabled WinRM on the remote computers.

$address = "xxx.xxx.xxx.xxx"  
$file = "C:\temp\interfaces.csv"  
Get-ADComputer -Filter *  | ForEach-Object {  
    Invoke-Command -ComputerName $_.Name -ScriptBlock {Get-DnsClientServerAddress} | ForEach-Object {  
        if ($address -in $_.ServerAddresses) {  
            $_ | Select-Object InterfaceAlias,PSComputerName  
        }  
    }  
} | Export-Csv -NoTypeInformation -Path $file  

Best Regards,
Ian Xue

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