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Require a PowerShell script to delete host and reverse lookup records in DNS of computers in a specific OU.

Posted on 2013-10-23
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Last Modified: 2013-12-09
Folks -

I would like assistance in crafting a PowerShell script (using only built-in cmdlets or command line apps, no 3rd party utils such a Quest) that will delete the DNS entries in the Forward and Reverse DNS zones for any computer accounts that are in a given OU.

So... let us say an OU is named "DisabledComputers".  I'd like the script to run through the forward and reverse zones in "Domain.lcl" and remove any DNS records for the computers in that OU.

In other words, if a computer "WorkstationA" is in the OU named "DisabledComputers", I'd like the Host and PTR records for that computer removed from the "Domain.lcl" DNS zones.  The script is essentially cleaning up DNS entries in real time as computers are expired from my domain for inactivity.

Yes, I use scavenging on a daily interval with default refresh/no-refresh periods.  However, in this case, there are valid reasons why I don't want to wait for record expiration and scavenging.

Thanks in advance for your help.
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Question by:amendala
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Will Szymkowski earned 2000 total points
ID: 39594992
There are no native Powershell cmdlets to accomplish what you are doing for server 2008. If you are using Server 2012 you can do this natively.

For server 2008 there has been a script to accomplish this using dnscmd to modify DNS records.

PS Script Download - http://gallery.technet.microsoft.com/scriptcenter/Update-DNS-records-with-da10910d

You will need to add your list of computers to the script via CSV file.

You can use the below script to get a list of computers from the DisabledComputers OU and then export them to a csv file. From there you put the file path into the PS script found at the download link...

Get-ADComputer -Filter * -SearchBase "OU=DisabledComputers,DC=domain,DC=com" | select DNSHostName | Export-csv "c:\computers.csv"

Will.
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