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Michael Jimenez

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How to use DNSCMD to batch modify DNS records using different credentials

Dear Experts,

I'm trying to modify DNS records on a server in our DMZ using credentials in the DMZ.  But when I run the below modified code the command does not complete successfully, if the Invoke-Command is used.  Invoke-Expression works fine if I run this against a DNS server that's internal.

If there is another way of modifying DNS records using a CSV file, I'm all ears.

Thanks!

$username="Username"
$password="Password Hash" | ConvertTo-SecureString
$cred = new-object -typename System.Management.Automation.PSCredential -argumentlist $username,$password

$NewComputerList = Import-Csv -Path "c:\DNSRecordsNEW.csv"

foreach($record in $NewComputerList) { 
    # Capture the record contents as variables 
    $recordName = $record.hostname 
    $recordType = $record.type 
    $recordAddress = $record.ipaddress 

    # Build our DNSCMD DELETE command syntax 
    $cmdDelete = "dnscmd $DNSServer /RecordDelete $DNSZone $recordName $recordType /f" 

    # Build our DNSCMD ADD command syntax 
    $cmdAdd = "dnscmd $DNSServer /RecordAdd $DNSZone $recordName $recordType $recordAddress" 

    # Now we execute the command 
    Write-Host "Running the following command: $cmdDelete" 
    #Invoke-Expression $cmdDelete
    Invoke-Command -ComputerName $DNSServer -Credential $cred -ScriptBlock { $cmdDelete }

    Write-Host "Running the following command: $cmdAdd" 
    #Invoke-Expression $cmdAdd
    Invoke-Command -ComputerName $DNSServer -Credential $cred -ScriptBlock { $cmdAdd }
    }

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Avatar of Michael Jimenez
Michael Jimenez

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Thanks! I'll give this a try.
I've just tried the above code and was able to get the RecordDelete to complete but am unsuccessful with the RecordAdd.  I'm getting an Invalid Data and a Command failed:  ERROR_INVALID_PARAMETER  87  0x57.
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Awesome. That was it!

Thanks for your help oBdA!
Very helpful and quick to respond!!

Thanks again!