I got curious enough to try this out to see if I can find a _kerberos
lookup...

During the join I saw 

4x queries for _ldap._tcp.dc._msdcs.<rootdomain>


During the first boot and local domain user logon I saw

1x query for _ldap._tcp.<site>._sites.<domain>




So I never saw it... Then I thought... Hmm maybe it shortcuts because it
knows its own domain is a 2K or better domain and knows that kerberos will
be there. Let me try a trusted domain user logon from the same forest. 

Bam!

There is it....

1x query for _kerberos._tcp.<site>._sites.dc._msdcs.<trusted child domain>
1x query for _ldap._tcp.<site>._sites.dc._msdcs.<trusted child domain>
1x query for _ldap._tcp.<site>._sites.<trusted child domain>


  joe






-----Original Message-----
From: Jorge de Almeida Pinto [mailto:[EMAIL PROTECTED] 
Sent: Thursday, May 05, 2005 8:24 PM
To: 'joe '; '[EMAIL PROTECTED] ';
'[email protected] '
Subject: RE: [ActiveDir] DNS vs. Hosts File

Darren has written a great article on AD network interactions
(http://www.windowsitpro.com/Article/ArticleID/37928/37928.html)

Both _ldap and _kerberos are used during authentication

#JORGE#

-----Original Message-----
From: [EMAIL PROTECTED]
To: [email protected]
Sent: 5/6/2005 2:12 AM
Subject: RE: [ActiveDir] DNS vs. Hosts File

I believe Jorge is correct.

If I recall correctly, the last time I did a complete trace from boot to log
on of a K3 Server the only SRV record looked up at any point in that process
was the _ldap._tcp.<site>._sites.<domain> record.

However, I can't count out that some caching from previous boots wasn't
being used by the server when it started. The full proof way I guess of
testing this would be to take a raw fresh box and trace it on startup
through the join process and then reboot and log on to see if the kerberos
record is ever queried. 

However, in all of the traces I have done, I don't think I ever recall
seeing a query for the _kerberos records....

Does MS DNS have the capability to keep easy statistics on what records are
queried and how often?


   joe

 

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Kern, Tom
Sent: Thursday, May 05, 2005 7:41 PM
To: [email protected]
Subject: Re: [ActiveDir] DNS vs. Hosts File

I thought for auth purposes, it was _kerberos.tcp.<site>. etc,etc...? 

Am I wrong?
Thanks
--------------------------
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