Re: resolve the same name to a different IP at different AD sites?

"Andrew Hodgson" <> wrote in message
news: ews.com...
> Hi,
>
> I am wondering whether it is possible to set up an AD integrated DNS
> zone so that at one site the record points to a local IP address in
> the same site, whereas in the other site it points somewhere else? I
> firstly looked into domain partitions, but I am not sure whether this
> is going to do what we want it to do.
>
> Thanks.
> Andrew.


Hi Andrew,

What exactly are your intentions with the different names and IPs?

FYI: If you create an AD integrated zone, it replicates to all DC/DNS
servers either in the domain or the forest, depending on its replication
scope. So no, you can't have one name in one Site with one IP address, and
another in another site with a different IP address.

If these records are for AD resources, such as domain controllers, properly
setting up AD Sites and their associated subnet objects is the way to go.
Client machines will automatically look for resources in its own Site before
elsewhere.

If the records are for non-AD resources, such as a website, you can simply
create the same name and the client will select the IP closests to its own
subnet based on the Network Prioritization feature of DNS.

They are generalizations, but to better help with your intentions, would
require more understanding of your intentions.

--
Ace

This posting is provided "AS-IS" with no warranties or guarantees and
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Ace Fekay, MCT, MCTS Exchange, MCSE, MCSA 2003 & 2000, MCSA Messaging
Microsoft Certified Trainer

For urgent issues, please contact Microsoft PSS directly. Please check
http://support.microsoft.com for regional support phone numbers.

"Andrew Hodgson" <> wrote in message
news: ews.com...
> On Thu, 20 Aug 2009 19:14:30 -0400, "Ace Fekay [MCT]"
> <> wrote:
>
>>"Andrew Hodgson" <> wrote in message
>>news: anews.com...
>>> Hi,
>>>
>>> I am wondering whether it is possible to set up an AD integrated DNS
>>> zone so that at one site the record points to a local IP address in
>>> the same site, whereas in the other site it points somewhere else? I
>>> firstly looked into domain partitions, but I am not sure whether this
>>> is going to do what we want it to do.
>>>
>>> Thanks.
>>> Andrew.
>>
>>
>>Hi Andrew,
>>
>>What exactly are your intentions with the different names and IPs?
>
> [...]
>
> Thanks for the confirmation. We are trying to get people to use
> specific file servers and specific Intranet URLs at different sites.
> I got rid of Wins some time ago, which was causing more issues, but
> someone told me that domain partitions would help me with presenting
> different AD sites with different IP addresses for the same resource
> name.
>
> So are you saying then that if I create two different DNS records for
> a file server, then the client would connect to the file server at the
> nearest site?
>
> Andrew.


I'm not sure about using AD partitions for this reason, nor have I ever
tried it - never had to. Creating one entry with multiple IPs should do the
trick. Curious, why not just use DFS and define replicas at the different
sites? DFS is AD Site aware and doesn't require manually creating DNS
entries.

Check it out...

Step-by-Step Guide to Distributed File System (Dfs)
Installation of the Dfs service takes place automatically during Windows
2000 Server Setup. However, you must configure Dfs in order for a Dfs share
to be ... etc
http://technet.microsoft.com/en-us/l.../bb727150.aspx

Configure DFS Replication: Remote File Systems; File and Storage ...
Configure DFS Replication. Updated: January 21, 2005. Configure replication.
View replication properties · Initiate file replication ... etc
http://technet.microsoft.com/en-us/l...80(WS.10).aspx

Ace