Re: DNS A Record Order.

I tend to agree about netmask ordering. But my take on it is even if round
robin is not disabled, netwmaks ordering will be the factor on what IP the
client will receive, based on the subnet of the querying client. So I
would say that it just works without needing to make any changes.

He for some reason wants to be able to predict or fix the
IP address returned -- in that case he can just disable both
netmarks ordering AND round robin.

But then we both wonder what is the point of multiple records
(since clients for practically all services tend to only try the
first one and will not fail over to the others in general.)


Now of course, I'm also assuming that AD Sites are configured, since the
client will get an IP of a logon server in it;s own subnet before it looks
elsewhere.

This latter part of the above is incorrect in GENERAL.

There is no guarantee that a client will use a Logon server
from the same SUBNET, but only that is will strongly tend
to use one from the SAME SITE (which may have many
subnets, or have a subnet in Sites that is actually inclusive
of many physical subnets on the wire.)


--
Herb Martin, MCSE, MVP
Accelerated MCSE
http://www.LearnQuick.Com
[phone number on web site]

"Ace Fekay [MVP]" <PleaseAskMe@xxxxxxxxxxxxxx> wrote in message
news:OTm0gmh1GHA.4392@xxxxxxxxxxxxxxxxxxxxxxx
In news:OAjSCkf1GHA.4108@xxxxxxxxxxxxxxxxxxxx,
Herb Martin <news@xxxxxxxxxxxxxx> stated, which I commented on below:
"Matthew" <matlowe@xxxxxxxxx> wrote in message
news:1158011194.079646.138000@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
That's kind of where I got to. Would be nice to have the same one
returned with round robin turned off.

We will have to look at a host file entry.

You can lock the order FROM the server by turning off
BOTH "round robin" and "netmask ordering" on the Server.

But you will still possibly see variations from the client
due to "subnet prioritization" (clients version of netmask
ordering) -- however this order should remain consistent
IF your client doesn't change subnets.

Going to a "hosts" file entry seems a little odd -- if you only
want one particular entry why not one entry in DNS?



--
Ace
Innovative IT Concepts, Inc
Willow Grove, PA

This posting is provided "AS-IS" with no warranties or guarantees and
confers no rights.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft MVP - Directory Services
Microsoft Certified Trainer

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Infinite Diversities in Infinite Combinations
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The only constant in life is change...



.

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