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best-practice for domain and subdomain DNS installation

 
 
alex
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      02-17-2010
we have trouble with our DNS Service.
just now we have a domain-installation like this
1.level domainName.top
2.level subdomain1.domainName.top
2.level subdomain2.domainName.top

the installation was made long ago and now we are searching for a
whitepaper or a best-practice to answer the question:
? how many DNS server should we install
? and where should they are located ?

 
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Chris Dent
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      02-17-2010
Hi Alex,

Those questions have no easy answer I'm afraid. You'll need to tell us
how many sites / clients you have at the very least.

I would suggest that you need at least 2 DNS servers hosting each zone.
That means the minimum is between 2 and 6 (because a pair of DNS servers
may host all zones if you wish).

Chris
 
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Ace Fekay [MVP-DS, MCT]
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      02-18-2010

"Chris Dent" <> wrote in message
news:es4$Gc%...
> Hi Alex,
>
> Those questions have no easy answer I'm afraid. You'll need to tell us how
> many sites / clients you have at the very least.
>
> I would suggest that you need at least 2 DNS servers hosting each zone.
> That means the minimum is between 2 and 6 (because a pair of DNS servers
> may host all zones if you wish).
>
> Chris



Chris, in addition, it would be also helpful to know if the child domains
are delegated or not, separate business entities with their own
administrators, or is corp headquarters handling it, and what OS version and
SP level are the DCs (related to replicaiton scopes), and what replication
scopes the zones are currently in, what DNS servers are being used by the
child domains... lot's more.

I agree there is no easy answer for this, and it would probably be better to
hire a consultant that is familiar with AD/DNS in an enterprise enviornment
to evaluate the current infrastructure in order to make valid
recommendations.

--
Ace

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

Please reply back to the newsgroup or forum for collaboration benefit among
responding engineers, and to help others benefit from your resolution.

Ace Fekay, MVP, MCT, MCITP EA, MCTS Windows 2008 & Exchange 2007, MCSE &
MCSA 2003/2000, MCSA Messaging 2003
Microsoft Certified Trainer
Microsoft MVP - Directory Services

If you feel this is an urgent issue and require immediate assistance, please
contact Microsoft PSS directly. Please check http://support.microsoft.com
for regional support phone numbers.


 
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Chris Dent
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      02-19-2010
Ace Fekay [MVP-DS, MCT] wrote:
> "Chris Dent" <> wrote in message
> news:es4$Gc%...
>> Hi Alex,
>>
>> Those questions have no easy answer I'm afraid. You'll need to tell us how
>> many sites / clients you have at the very least.
>>
>> I would suggest that you need at least 2 DNS servers hosting each zone.
>> That means the minimum is between 2 and 6 (because a pair of DNS servers
>> may host all zones if you wish).
>>
>> Chris

>
>
> Chris, in addition, it would be also helpful to know if the child domains
> are delegated or not, separate business entities with their own
> administrators, or is corp headquarters handling it, and what OS version and
> SP level are the DCs (related to replicaiton scopes), and what replication
> scopes the zones are currently in, what DNS servers are being used by the
> child domains... lot's more.
>
> I agree there is no easy answer for this, and it would probably be better to
> hire a consultant that is familiar with AD/DNS in an enterprise enviornment
> to evaluate the current infrastructure in order to make valid
> recommendations.
>


Absolutely I suggested the minimum of 2 to 6 because delegation state
was unknown. But you're right, we'd need to know a lot about how AD is
designed and used to get close to a recommendation.

Chris
 
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Ace Fekay [MVP-DS, MCT]
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      02-19-2010
"Chris Dent" <> wrote in message
news:...
> Ace Fekay [MVP-DS, MCT] wrote:
>> "Chris Dent" <> wrote in message
>> news:es4$Gc%...
>>> Hi Alex,
>>>
>>> Those questions have no easy answer I'm afraid. You'll need to tell us
>>> how many sites / clients you have at the very least.
>>>
>>> I would suggest that you need at least 2 DNS servers hosting each zone.
>>> That means the minimum is between 2 and 6 (because a pair of DNS servers
>>> may host all zones if you wish).
>>>
>>> Chris

>>
>>
>> Chris, in addition, it would be also helpful to know if the child domains
>> are delegated or not, separate business entities with their own
>> administrators, or is corp headquarters handling it, and what OS version
>> and SP level are the DCs (related to replicaiton scopes), and what
>> replication scopes the zones are currently in, what DNS servers are being
>> used by the child domains... lot's more.
>>
>> I agree there is no easy answer for this, and it would probably be better
>> to hire a consultant that is familiar with AD/DNS in an enterprise
>> enviornment to evaluate the current infrastructure in order to make valid
>> recommendations.
>>

>
> Absolutely I suggested the minimum of 2 to 6 because delegation state
> was unknown. But you're right, we'd need to know a lot about how AD is
> designed and used to get close to a recommendation.
>
> Chris



Yep, this is a difficult one to recommend anything. I think if the
infrastructure is this large, I would assume there was a third party that
assisted in setting it up.

Ace


 
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