WMI Object Syntax

[monarch684]

I am trying to get the Primary DNS server of a workstation with my script.  I work with WMI a lot with other scripting languages, so I am no stranger to the WMI environment.  Can some let me know what I am doing wrong in this script.  This is a hybrid of what I found with Google and wrote myself.

$objWMIService = ObjGet("winmgmts:\\localhost\root\CIMV2")
$colItems = $objWMIService.ExecQuery("SELECT * FROM Win32_NetworkAdapterConfiguration")
For $objItem In $colItems

  $DNSServers = $objItem.DNSServerSearchOrder

  $primaryDNS = $DNSServers[0]
Next
Msgbox(0,"", $primaryDNS)

 

[monarch684]

Ok found a couple mistakes but I am still not getting the DNS address;

Updated Code:

$objWMIService = ObjGet("winmgmts:\\.\root\CIMV2")
$colItems = $objWMIService.ExecQuery("SELECT * FROM Win32_NetworkAdapterConfiguration WHERE IPEnabled='True'")
For $objItem In $colItems

  $DNSServers = $objItem.DNSServerSearchOrder(0)
  $primaryDNS = $DNSServers

Next
Msgbox(0,"", $primaryDNS)

 

[MikahS]

The updated code returned my DNS address correctly. 

What is this code giving you?

[monarch684]

I get nothing.  Just a blank message box.

[monarch684]

Wait......tried on a different box and it worked great.  Must just be my box.  Thx.

[MikahS]

No problem, happy to test. 

[jguinch]

The result is blank because you have more than one network adapter. Your MsgBox shows the DNS servers for the last network adapter.

Move your MsgBox line in the loop and you will see several message box with blank values.

$objWMIService = ObjGet("winmgmts:\\.\root\CIMV2")
$colItems = $objWMIService.ExecQuery("SELECT * FROM Win32_NetworkAdapterConfiguration WHERE IPEnabled='True'")

$primaryDNS = ""

For $objItem In $colItems
    $aDNSServers = $objItem.DNSServerSearchOrder
    If IsArray($aDNSServers) Then
        $primaryDNS = $aDNSServers[0]
        ExitLoop
    EndIf
Next

MsgBox(0, "", $primaryDNS)