Impersonating a Different Logon

[Tim Golden]

On 07/04/2010 14:57, Kevin Holleran wrote:
> Thanks, I was able to connect to the remote machine.  However, how do
> I query for a very specific key value?  I have to scan hundreds of
> machines and need want to reduce what I am querying.  I would like to
> be able to scan a very specific key and report on its value.

The docs for the WMI Registry provider are here:

   http://msdn.microsoft.com/en-us/library/aa393664%28VS.85%29.aspx

and you probably want this:

   http://msdn.microsoft.com/en-us/library/aa390788%28v=VS.85%29.aspx

>
> With _winreg I could just do:
> keyPath = _winreg.ConnectRegistry(r"\\" + ip_a,_winreg.HKEY_LOCAL_MACHINE)
> try:
>        hKey = _winreg.OpenKey (keyPath,
> r"SYSTEM\CurrentControlSet\services\Tcpip\Parameters", 0,
> _winreg.KEY_READ)
>        value,type = _winreg.QueryValueEx(hKey,"Domain")
>
> Also, is there a performance hit with WMI where perhaps I want to try
> to connect with the inherited credentials using _winreg first and then
> use the MWI if that fails?

Certainly a consideration. Generally WMI isn't the fastest thing in the
world either to connect nor to query. I suspect a try/except with
_winreg is worth a go, falling through to WMI.

TJG