Windows 2012 Server Domain Controller & DNS

I need help to ensure I am setting the servers correctly.

I have 5 servers and they are all in the same forest and root domain.

mydomain.com

There servers are setup in the following configuration:

Servers:

1) server001.mydomain.com:  Main Domain Controller and DNS Server / FILE SERVER
2) server002.mydomain.com:  Secondary Domain Controller and DNS Server / Extra Web Server.

They are both domain controllers and they are syncing and mirroring the DNS and Active Directory.

The other servers: 3,4 and 5.

They all have specific roles. I know the exchange and share team servers need a but more than just a member server requires.

But I setting up the servers.

They have been named and setup and are at the point of being added to the domain.

Do I need to make all of them domain controllers.  I know this use to be taboo because of all the unnecessary networking talking it would cause between servers.

However, Many of the updated info on Windows 2012 Servers.

I added server 003 which is going to be the web server / help desk server.
I added the DNS as a secondary so it would be syncing with the domain controllers but I do what the DNS to be self-reliant so if they domain controllers go down etc..

Especially for the exchange server which must have active directory access and DNS.

The other serves will do as follows:

3) server003.mydomain.com:  Web Server IIS 8.0
4) server004.mydomain.com:  Exchange Server 2013
5) server005.mydomain.com:  Share Team Server 2013

Ideas, thoughts and information will be greatly appreciated.  Thanks.
Clint JonesAsked:
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SandeshdubeyConnect With a Mentor Senior Server EngineerCommented:
In general it is recommended that at least two DCs in a domain for high availablity and fault tolerance, but how many DCs at each site will depend on your requirement. Normally one DC at each site can serve thousands of users with regard to authentication. To me it's OK with 2 DCs in your scenario.There is no need to make other member server as DNS/DC server.

You can read MS article and the previous discussion:

Domain controllers # Determining the number of domain controllers you need
http://technet.microsoft.com/en-us/library/cc759623(v=WS.10).aspx

How many domain controllers are recommended
http://social.technet.microsoft.com/Forums/en-US/winserverDS/thread/991d4f68-5178-4c9a-8b7d-8f2b5f53867e

Hope this helps
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Mike KlineConnect With a Mentor Commented:
No don't make them all DCs just having 1 and 2 as DCs is fine.   The other 3 servers can point to the AD boxes for DNS.   I'm assuming they will all be in the same AD site.

Make both DCs global catalogs too.

Thanks


Mike
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Clint JonesAuthor Commented:
Yes they are all in the same domain and forest infrastructure.

When you say - "point to AD boxes for DNS".

It is more than just the IP addresses of the other DB and servers in the DNS setting of the NIC cards.  

I am adding them to the Domain which works but the DNS I have to setup as primary DNS for each server 3, 4 and 5 if I do secondary so it updates the DC's but I guessing that is not what I want to accomplish.  DC DNS is of course adding the other servers as they are added to the domain to its DNS and AD so is that all needs to be done or ???

Need a more step by step understanding.  Thank You...
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Skyler KincaidConnect With a Mentor Network/Systems EngineerCommented:
You last question is really confusing...

You should have the DNS role installed on both DCs. You should have the other three servers set with static IPs and the DNS should be set with the primary of DC1 and the secondary set as DC2. It is that simple.
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Clint JonesAuthor Commented:
The DNS is what I am needing help with the most and doing research on....

The 2 main DNS are the 2 Domain Controllers. With the Exchange Server and the Share Team server. That when I make user name and permissions.  

When I add the other servers to the Domain Controllers.  I add them as a member server but I have to have DNS setup on those servers to add the "A" records on the Web Server IIS and with exchange 2013 on that server the "A" and "MX" records..

So I am just added the new servers, added as a member to the domain...

Making the DNS when setting it up as a PRIMARY DNS... I thought maybe secondary so its sending and a copy of itself to the MAIN DNS Servers on the 2 domain controllers.

I tried secondary and it fails if I try to add...

Thanks for your help....
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Clint JonesAuthor Commented:
Thanks to everyone that gave input =)
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