"_sites.dc._msdcs.DNSDomainName" is for locating a DC (hence the _msdcs) that 
hosts a certain service in a certain site
"_sites.DnsDomainName" is for locating a SERVER (does not need to be a DC) that 
hosts a certain service in a certain site
 
for more info on service resource records see:
http://www.microsoft.com/resources/documentation/Windows/2000/server/reskit/en-us/Default.asp?url=/resources/documentation/Windows/2000/server/reskit/en-us/distrib/dsbc_nar_sdns.asp
 
DNS priorities are on a per DC basis, and not on a per DC per site basis.
 
It is not possible to configure a different priority for the same DC covering 
another site.
 
Why do you want to do that?
 
if clients cannot find a DC in a site by querying for 
_ldap._tcp.SiteName._sites.DnsDomainName
the client will search for a DC in the domain by querying for 
_ldap._tcp.dc._msdcs.DnsDomainName
 
If you have a hub-and-spoke site topology it is OK to configure all spoke DCs 
(branches) NOT to register domain wide DC locator records and only let HUB DCs 
register those records
 
Jorge

________________________________

From: [EMAIL PROTECTED] on behalf of Kamlesh Parmar
Sent: Fri 2005-12-30 22:42
To: [email protected]
Subject: [ActiveDir] DNS SRV records



>From my limited knowledge of how AD uses SRV records, I have two queries.
 
1)
Why we need separate _sites.DnsDomainName child domain when we have 
_sites.dc._msdcs.DNSDomainName child domain populated? 

And I guess that only later is used by clients to find the site specific DC for 
authentication. 

Which other applications would need site specific but generic SRV records 
(former ones) ?? 

2)
How to publish DC1 in site1 into remote site site2 with different priority than 
its own site site1? 
i.e. 

DC1  site1   priority=0 
DC1  site2   priority=10 

DC2  site1   priority=10 
DC2  site2   priority=0 
 
By the way,
 
Happy New Year to you all.

-- 
Kamlesh
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"Be the change you want to see in the World"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 


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