Question

WMI to DELETE DNS Zone or DNS Domain

Asked by: BTMExpert

I'm unable to find a way to delete a DNS Zone or a DNS Domain through WMI.

I'm a C# coder. I have been able to delete DNS Records by selecting them and invoking the delete method (see below).

But it looks like there is no method in the MicrosoftDNS namespace to delete a DNS Domain.

What is your suggestion ?

Thanks :)


//
// THIS WILL DELETE A DNS RECORD, WORKS OK:
//
            string query = "SELECT * FROM MicrosoftDNS_ResourceRecord WHERE OwnerName = 'an.owner.name' ";
            ManagementObjectSearcher searcher = new ManagementObjectSearcher(_scope, new ObjectQuery(query));
            ManagementObjectCollection collection = searcher.Get();
            foreach (ManagementObject o in collection)
            {
                o.Delete();
            }
 
 
 
//
// THIS ATTEMPT TO DELETE A DNS DOMAIN WILL NOT WORK:
//
            string query = "SELECT * FROM MicrosoftDNS_Domain WHERE Name = 'domain.to.delete' ";
            ManagementObjectSearcher searcher = new ManagementObjectSearcher(_scope, new ObjectQuery(query));
            ManagementObjectCollection collection = searcher.Get();
            foreach (ManagementObject o in collection)
            {
                o.Delete();
            }

                                  
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Asked On
2009-07-29 at 11:08:57ID24610513
Tags

wmi

,

dns

,

domain

Topics

Windows Management Instrumentation (WMI)

,

C# Programming Language

,

Windows 2000 Server

Participating Experts
1
Points
0
Comments
5

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Answers

 

by: TheLearnedOnePosted on 2009-07-29 at 11:55:21ID: 24973340

It would seem that you are correct, as the MSDN reference seems to confirm that:

MicrosoftDNS_Domain Class
http://msdn.microsoft.com/en-us/library/ms682670(VS.85).aspx

...but, the MicrosoftDNS_ResourceRecord reference doesn't have a Delete method

MicrosoftDNS_ResourceRecord Class
http://msdn.microsoft.com/en-us/library/ms682713(VS.85).aspx

It sounds like deleting resources is a simple process, but deleting a domain would be too complex...

 

by: BTMExpertPosted on 2009-07-29 at 12:36:45ID: 24973763

You pointed to the right documentation.

None of those 2 classes (MicrosoftDNS_Domain and MicrosoftDNS_ResourceRecord) has a delete method of its own I could invoke.

Although I have been able to delete Resource Rercords using the ManagementObject wrapper Delete method (as seen in the previous code).

I would think there is a way to delete domains somehow using Windows Management... can't find anyone who faced this requirement previously !

 

by: TheLearnedOnePosted on 2009-07-29 at 15:53:17ID: 24975463

There are references to deleting resource records, but not domains (that I could find).

 

by: BTMExpertPosted on 2009-08-01 at 10:25:17ID: 24995992

Ok, I think I found the solution and it's based on the code I first posted.

I noticed that if you create empty domains, they get removed periodically if they don't contain records.

What I'm doing is recursivelly delete all the record of the domain I want to extinguish. Usually the domain will get removed immediately, but chances are it may stand there for a while.

The code for RR deletion is posted above.

As long as it does not contain any RR, the domain will get deleted eventually.

Hope you find this useful should you ever face this task :)

Have a nice weekend !

20120131-EE-VQP-002

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