RE: [ActiveDir] DNS WMI Provider

[Robbie Allen]

Title: Message

Ahhh yes, the DNS WMI Provider.  What a piece of ..., ok I won't go there :-)  What kills me is that the MSDN documentation has NEVER been right.  Even after they updated it for 2003 it was still wrong.  I've submitted corrections to newsgroups and even to an MS internal docs group, but have not seen any corrections on MSDN.  I was really hoping they were going to fix the problems in 2003, but alas I was disappointed.

 

I find the WMI CIM Studio to be the best resource when you have questions about how a particular class is implemented.  It is a little easier than digging through the MOF files.

 

Robbie Allen

http://www.rallenhome.com/

 

-----Original Message-----
From: Gil Kirkpatrick [mailto:[EMAIL PROTECTED]
Sent: Tuesday, October 28, 2003 3:47 PM
To: '[EMAIL PROTECTED]'
Subject: RE: [ActiveDir] DNS WMI Provider

And don't even think about the bugs and memory leaks!

 

-gil

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Michael B. Smith
Sent: Tuesday, October 28, 2003 1:36 PM
To: [EMAIL PROTECTED]
Subject: [ActiveDir] DNS WMI Provider

OK, I just gotta share, to vent some of my frustration.

 

The DNS provider on Windows 2000 (included in the resource kit supplement and available for download from Microsoft) is NOT compatible with the DNS provider on Window 2003! Dagnabit! The CreateZone() and the WriteBackZone() routines are different!!

 

And the documentation on MSDN isn't right -- it's somewhere in between the two versions.

 

To figure it out, I eventually had to go into the blasted MOF files. Silly.

 

VERY silly.

 

And secondly, pass-through authentication does not work with WMI. Whose idea was THAT one?

 

Bah. Humbug.

 

So, because of these two things, I've gotta have code like this:

 

Const int2000ADZone        = 0
Const int2000PrimaryZone   = 1
Const int2000SecondaryZone = 2

 

Const int2003PrimaryZone   = 0
Const int2003SecondaryZone = 1
Const int2003StubZone      = 2
Const int2003ForwardZone   = 3

'

' code

'

Sub CreateTheZone (objZoneRef, strZoneName)
 ' Create the Zone
 Dim errResult

 

 WScript.Echo "Creating zone " & strZoneName
 If intOS = 2000 Then
  errResult = objZoneRef.CreateZone (strZoneName, int2000PrimaryZone)
 Else
  'intOS = 2003
  errResult = objZoneRef.CreateZone (strZoneName, int2003PrimaryZone, False)
 End If

 

 WScript.Echo "Created zone " & strZoneName & ", will now create resource records"
End Sub

 

Sub SaveTheZone (objWMI, strZoneName)
 ' Write the zone back to disk
 
 Dim objZone, objZones

 

 WScript.Echo "Updating disk image of zone"
 set objZones = objWMI.ExecQuery ("Select * from MicrosoftDNS_Zone " & _
     "where ContainerName = '" & strZoneName & "'")
 For Each objZone in objZones
  If intOS = 2000 Then
   objZone.WriteBackZoneToFile ()
  Else
   ' intOS = 2003
   objZone.WriteBackZone ()
  End If
 Next
 WScript.Echo "Disk image updated"
End Sub

Function OSVersion (strUser, strPass, strServer)
 Dim colOS, objOS, strCaption, intOSver, objWMI

 

 intOSver = -1

 

 If ConnectComputer (strUser, strPass, strServer, "root\cimv2", objWMI) Then
  Wscript.Echo "*** Error: Could not connect to CIMv2 namespace on " & strServer
  WScript.Quit 1
 End If

 

 Set colOS = objWMI.ExecQuery ("Select * from Win32_OperatingSystem")
 For Each objOS in colOS
  'Wscript.Echo objOS.Caption ' & " " & objOS.Version
  strCaption = objOS.Caption
  If Instr (strCaption, "2000") Then
   intOSver = 2000
  Else
   If Instr (strcaption, "2003") Then
    intOSver = 2003
   End If
  End If
  Exit For
 Next

 

 set objWMI = Nothing

 

 OSVersion = intOSver

 

End Function

 

Function ConnectComputer(ByVal strUserName,  _
                         ByVal strPassword,  _
                         ByVal strServer,    _
    ByRef strNameSpace, _
                         ByRef objService)

 

    On Error Resume Next

 

    Dim objLocator, objWshNet

 

    ConnectComputer = False     'There is no error.

 

    'Create Locator object to connect to remote CIM object manager

 

    If IsEmpty (strUserName) Then
 Set objService = GetObject ("winmgmts:" & "{impersonationLevel=impersonate}!\\" & strServer & "\" & strNameSpace)
        If Err.Number then
            Wscript.Echo "Error 0x" & Hex (Err.Number) & " occurred in acquiring a WMI object."
            If Err.Description <> "" Then
                Wscript.Echo "Error description: " & Err.Description & "."
            End If
            Err.Clear
            ConnectComputer = True     'An error occurred
 End If
        Exit Function
    End If

 

    Set objLocator = CreateObject ("WbemScripting.SWbemLocator")
    If Err.Number then
        Wscript.Echo "Error 0x" & Hex (Err.Number) & " occurred in creating a locator object."
        If Err.Description <> "" Then
            Wscript.Echo "Error description: " & Err.Description & "."
        End If
        Err.Clear
        ConnectComputer = True     'An error occurred
        Exit Function
    End If

 

    'Connect to the namespace which is either local or remote
    Set objService = objLocator.ConnectServer (strServer, strNameSpace, strUserName, strPassword)
    ObjService.Security_.impersonationlevel = 3
    If Err.Number then
        Wscript.Echo "Error 0x" & Hex (Err.Number) & _
                           " occurred in connecting to server " _
                           & strServer & "."
        If Err.Description <> "" Then
            Wscript.Echo "Error description: " & Err.Description & "."
        End If
        Err.Clear
        ConnectComputer = True     'An error occurred
    End If

 

End Function