What is the role of Additional domain controller. How ADC takeover the DC. Is there a need to change the DNS ip on domain computers to ADC IP

What is the role of Additional domain controller in a domain. How ADC takeover the DC. Is there a need to change the DNS ip on domain computers to ADC IP.

I've setup a additional domain controller in my network, but when i shutdown the DC , ADC don't takeover the DC.
tomar_10Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Chris DentPowerShell DeveloperCommented:

It doesn't "take over" as such. When multiple DCs are configured they share the load, except for the 5 FSMO roles neither has any advantage over the other.

For your additional Domain Controller to be effective it must be:

1. A Global Catalog
 - Set in AD Sites and Services in the Properties for NTDS Settings under the Domain Controller
2. A DNS Server
 - Install the service and wait for replication to occur. All AD Integrated zones will appear from there.

Without those two you're still entirely reliant on the first DC. And once done that adds a third requirements:

3. Clients must refer to both as DNS servers in their TCP/IP configuration

Of course there's no provision for redundancy in the DHCP service, any client rebooting will not get an IP Address if the first DC is also hosting DHCP.

Chris
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
AntiSpam

From novice to tech pro — start learning today.