DNS through WMI in .NET

Has anyone got or seen a working example of making DNS modifications (simple deleting and adding of records) through WMI from .NET code.

I have seen a couple of VBScript examples, but would rather do it through VB or C# code if possible?

Is it in fact possible?

Any help would be much appreciated.

thank you

Dunno, don't have any experience with MS DNS really, but once I saw a guy mention commandline tools to manage MS DNS. It'd be a simple thing to execute those commandline tools with the necessary parameters to manage things.

I've got a complete web-interface build using WMI from .NET to access the DNS (and IIS). What do you need it for?

regards,
Steen

Steen, if you could help, it would be great. I have a complete vbscript version that I wrote, to modify dns records, and I wanted to convert it to c# (more just to get up to speed on c#).

Anyways, I have the dns record additions working, but I can't figure out how to delete records. If you know how to do this, please let me know, or point me to a site with some info. THANKS!!!!!

Do you know how to select (with query) a ResourceRecord??

Using a ManagementObjectSearcher and getting a ManagementCollection. Run through the collection and delete the record using the Delete method on the ManagementObject class.

Did that make any sence to you?

/Steen

Yes, I have a wmi based nslookup that I was using in my vbscript that I ported over to c# ...It works great, but the delete does not seem to work ....still working on it. (I should probably just use a gethostbyname, but this works very well) By the way, here is part of the nslookup code...

ManagementScope oMs = new ManagementScope("\\\\" + dnsServer + "\\root\\microsoftdns");
string strQuery = "select recorddata from microsoftdns_" + recType +
"type where containername = '" + domain + "' and ownername = '" + strValue + "'";

ObjectQuery oQ = new ObjectQuery(strQuery);
ManagementObjectSearcher oS = new ManagementObjectSearcher(oMs, oQ);
ManagementObjectCollection oRc = oS.Get();
foreach (ManagementObject oR in oRc)
{
temp = oR["recorddata"].ToString();
if (temp.Length == 0) { break; }
}
if (temp == "") { temp = "none"; }

return temp;

Well, actually you need to do what you've done above, to delete one or more records.

foreach (ManagementObject oR in oRc) {
oR.Delete();
}

That's the way I do it anyway!

/Steen

I just figured it out. Instead of using the "select recorddata from microsoftdns.."

I use "select * from microsoftdns..."

I was being too specific in my query, so the delete wouldn't work. When I expanded the query to a wildcard, it worked great.

Thanks for all your help on this!!!

I need this to speed up the process of creating accounts PLEASE. Talk to me.....

What kind of speed issues are you looking to resolve. Please feel free to email off line or post back.



--
Mike Poulson
http://blogs.msdn.com/mpoulson

hi all, i am now facing this problem too.....
i would like to programmatically add new host to the DNS by using WMI (vb.net or c3).

So anyone who got this solution, please kindly post here....

thanks

Does anyone have a complete interface/class in either VB.NET or C# that will handle all the common DNS tasks (createZone, DeleteZone, CreateARecord, CreateMXRecord, etc, etc)?? I would greatly appreciate it.

I would love to just be able to download a working class file.