DNS Settings

Hi Experts,

I have 2 sites in Active Directory. Both have 2 domain controllers that are also DNS servers. Domain Functional Level is Windows Server 2008.

Site 1:
Server 1 - Windows Server 2008 R2
Server 2 - Windows Server 2008 R2

Site 2:
Server 1 - Windows Server 2008 R2
Server 2 - Windows Server 2012 R2

On every domain controller, which servers do i configure as a DNS server, and in what order? And what about the member servers and the clients?
LVL 7
SvenIAAsked:
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Sajid Shaik MSystem AdminCommented:
always the Primary domain controller will leads...

what ever the first DNS is on the site will be the primary DNS and the second will be the secondary DNS..
LearnctxEngineerCommented:
Typically you would configure your DNS on each as follows.

Site 1:
Server 1
Primary DNS Site 1 Server 2
Secondary DNS Site 1 Server 1

Server 2
Site 1 Server 1
Site 1 Server 2

Site 2:
Server 1
Site 2 Server 2
Site 2 Server 1

Server 2
Site 2 Server 1
Site 2 Server 2

For client configuration. You will want 1 server in site 1 and 1 server in site 2. Which does not matter but I would recommend being consistent as it makes decommissions and outages easier. Having a load balancer in front of your domain controllers (F5, etc) is ideal as it makes LDAP/DNS management from a client point of view super simple as well as from your point of view for downtime/decommissions.

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dan_blagutCommented:
Hello

Agree with LearnCTX for server configuration. Is the optimal configuration when you restart one server. For client computer you can use only local DNS servers (you have 2, and if both servers are down... you will lost the DHCP also)
The AD dont need loadbalancer (the AD servers do that naturally)
In rest, be carefoull with site and service:
- 2 sites with 2 servers each site
- declare the IP subnet for each site
- one bridgehead server on each site

Dan
SvenIAAuthor Commented:
Thanks for the information guys.
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Windows Server 2012

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