"Daniel" <danieltbt04@yahoo.com> wrote in message
news:epVLJi%23vHHA.1164@TK2MSFTNGP02.phx.gbl...
> So you mean that the client will logon to whichever DC is online and
Yes.
> whichever dns A records that in order ?
Maybe the order of the SRV records (clients find DCs by first
using SRV records) but generally the records are rotated due
to ROUND ROBIN.
In Round Robin each record is "rotated" by the DNS server so
that the order of returning them to clients is different for each
request and therefore offers loose load balancing.
Clients request first the SRV records for the needed service (Kerberos
for authentication) in the SAME SITE as the client, then will try others
anywhere in the domain if necessary.
It is also possible that "Subnet Prioritization" and "Netmask Ordering"
will encourage a client to use the CLOSEST (same classic or actual
subnet) first.
This is all designed to make AD authentication as efficient as possible
while keeping the implementation quite simple.
Generally for small domains make each DC a DNS server, and you will
need WINS Server(s) if you have more than one SUBNET.
In some cases a GC is also required (or desired) so with a single domain
forest make every DC a GC.
--
Herb Martin, MCSE, MVP
http://www.LearnQuick.Com
(phone on web site)
> Daniel
>
>
> "Herb Martin" <news@learnquick.com> wrote in message
> news:%23u3Q9lvvHHA.4300@TK2MSFTNGP04.phx.gbl...
>>
>> "Daniel" <danieltbt05@gmail.com> wrote in message
>> news:%23G3KCZrvHHA.5036@TK2MSFTNGP03.phx.gbl...
>>> But if both DNS server records are different in order which 1 will
>>> client login first ? Thanks
>>
>> Usually Round Robin DNS is enabled (Server -> Properties -> Advanced)
>> so it is random, pseudo-load balanced.
>>
>>
>> --
>> Herb Martin, MCSE, MVP
>> http://www.LearnQuick.Com
>> (phone on web site)
>>
>>> Daniel
>>>
>>> "Ryan Hanisco" <RyanHanisco@discussions.microsoft.com> wrote in message
>>> news:030608DD-233F-4B9A-BC0B-AC8CDFD18BE6@microsoft.com...
>>>> Daniel,
>>>>
>>>> In that case, look at the DC records in DNS. It will try then in
>>>> order.
>>>> If the first is busy, it will go to the second. Since they are in the
>>>> same
>>>> site, it really shouldn't matter which one they are logging in to --
>>>> unless
>>>> you are doing something funky where there is much higher load on the
>>>> one. In
>>>> that case, you can weight the DNS records to ensure that the chosen one
>>>> is
>>>> always tried first.
>>>> --
>>>> Ryan Hanisco
>>>> MCSE, MCTS: SQL 2005, Project+
>>>> Chicago, IL
>>>>
>>>> Remember: Marking helpful answers helps everyone find the info they
>>>> need
>>>> quickly.
>>>>
>>>>
>>>> "Daniel" wrote:
>>>>
>>>>> I have 2 servers with dns installed and both are in same site. Both
>>>>> are
>>>>> default first site.
>>>>>
>>>>> Daniel
>>>>>
>>>>> "Ryan Hanisco" <RyanHanisco@discussions.microsoft.com> wrote in
>>>>> message
>>>>> news:3A691C92-97A1-4FBB-AAAE-76D1A5BA7594@microsoft.com...
>>>>> > Daniel,
>>>>> >
>>>>> > The workstation will query DNS to find the server that it should log
>>>>> > into.
>>>>> > This will be the server associated with the site to which its subnet
>>>>> > belongs.
>>>>> > After that it will go down the list in DNS to find the next DC in
>>>>> > the list
>>>>> > starting with default-first-site.
>>>>> > --
>>>>> > Ryan Hanisco
>>>>> > MCSE, MCTS: SQL 2005, Project+
>>>>> > Chicago, IL
>>>>> >
>>>>> > Remember: Marking helpful answers helps everyone find the info they
>>>>> > need
>>>>> > quickly.
>>>>> >
>>>>> >
>>>>> > "Daniel" wrote:
>>>>> >
>>>>> >> If in my network i have 2 DC in 1 domain, which DC would the user
>>>>> >> login
>>>>> >> to
>>>>> >> ?
>>>>> >>
>>>>> >> Daniel
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >>
>>>>>
>>>>>
>>>>>
>>>
>>>
>>
>>
>
>