How does NT choose a DC?

Gene Yee gene_yee at hotmail.com
Wed May 10 18:29:48 GMT 2000


Luke, with such a quick responce I wasn't quite sure if you were just making 
a statement or confirming what Paul said.

So does a workstation make a request from all the DCs located from WINS and 
authenticates with the quickest server?  Seems a bit chatty if you ask me...

>From: Luke Kenneth Casson Leighton <lkcl at samba.org>
>Reply-To: lkcl at samba.org
>To: Multiple recipients of list SAMBA-NTDOM <samba-ntdom at samba.org>
>Subject: Re: How does NT choose a DC?
>Date: Wed, 10 May 2000 16:40:52 +1000
>
>udp 138 mailslot GETDC request.
>
>On Wed, 10 May 2000, Paul J Collins wrote:
>
> > >>>>> "Anders" == Anders C Thorsen <anders at aae.wisc.edu> writes:
> >
> >     Anders> Well... my guess would be to look at the subnet (ip AND
> >     Anders> netmask)
> >
> > But that *is* a broadcast, they exact type that is done in the absence
> > of WINS.
> >
> > I seem to recall hearing that the client gets a list of all the DCs in
> > the WINS and sends a request to each of them and then picks the one
> > that responds first; a focused broadcast, if you will.  NetBIOS names
> > with type 0x1c are domain controllers, I believe.
> >
> > Paul.
> >
> > --
> > Paul Collins <sneakums at eircom.net> - - - - - [ A&P,a&f ]
> >  GPG: 0A49 49A9 2932 0EE5 89B2  9EE0 3B65 7154 8131 1BCD
> >  PGP: 88BA 2393 8E3C CECF E43A  44B4 0766 DD71 04E5 962C
> > "Linux: it's just this operating system, you know?"
> >
>
><a href=" mailto:lkcl at samba.org" > Luke Kenneth Casson Leighton    </a>
><a href=" http://cb1.com/~lkcl"  > Samba and Network Development   </a>
><a href=" http://samba.org"      > Samba Web site                  </a>
><a href=" http://mcp.com"        > Macmillan Technical Publishing  </a>
>
>ISBN1578701503 DCE/RPC over SMB: Samba and Windows NT Domain Internals
>

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