detecting PDCs

[Russell.Butturini at Healthways.com (Butturini, Russell)]

These solutuons are useful, but you're assuming a machine joined to the domain, running in the context of an 
authenticated user session, with knowledge of the internal domain name.

----- Original Message -----
From: pauldotcom-bounces at mail.pauldotcom.com <pauldotcom-bounces at mail.pauldotcom.com>
To: PaulDotCom Security Weekly Mailing List <pauldotcom at mail.pauldotcom.com>
Sent: Thu Mar 25 16:36:13 2010
Subject: Re: [Pauldotcom] detecting PDCs

Indeed.
Similar to ethe cho %logonserver% method is:

Systeminfo | findstr /I /C:"logon server"
But a nice way is to get it from dns:
Nslookup -type=srv _ldap._tcp.pdc._msdcs.<domainname>
Will give you the same answer as logonserver, to see all DC's change
pdc to just dc. I got 8 DCs doing this at work all of which I know are
dcs
-Josh

On Mar 25, 2010, at 5:07 PM, k41zen <k41zen at live.co.uk> wrote:

> depends on how auth'd you are to the domain I guess, but dsquery is
> very useful too
>
> http://www.computerperformance.co.uk/Logon/DSquery.htm
>
> http://tactech.net/2009/09/28/how-to-search-for-a-domain-controller/
>
> http://technet.microsoft.com/en-us/library/cc732885%28WS.10%29.aspx
>
>
> On 25 Mar 2010, at 10:54, Robin Wood wrote:
>
> > Hi
> > I'm wondering what techniques people are using to detect domain
> > controllers when they get on networks. I've asked a few people and
> > the
> > standard answer seems to be to look for the DNS server as the PDC is
> > usually also acting as the DNS server. Has anyone else got any better
> > or alternative techniques they use?
> >
> > Robin
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