how to verify a machine is a DC

Volker Lendecke Volker.Lendecke at SerNet.DE
Fri Feb 22 19:03:39 GMT 2008

On Fri, Feb 22, 2008 at 10:46:49AM -0800, Herb Lewis wrote:
> What is the best (most reliable) way to verify that a
> particular machine is a DC for a given domain? Particularly
> when NetBIOS over TCP has been disabled on that DC.
> I used to use nmblookup for the <domain>#1c name but that
> will not work if NetBIOS is disabled so I'm looking for
> a way that will work in both situations.

I don't think you can reliably. The only real way is to do
the reqchal/auth2 requests to tell whether the DC knows your
workstation password.

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