troubleshooting Question

DNS best practices on Active Directory

Avatar of Armitage318
Armitage318 asked on
Active DirectoryDNSMicrosoft
1 Comment1 Solution7 ViewsLast Modified:
Hi, I have 3 DC on my local network:
1. (Windows Server 2019)
2. (Windows Server 2008)
3. (Windows Server 2012)
I am going to demote server 2 (Windows Server 2008) and rebuild from scratch with Windows Server 2019.
1. Server1 has first DNS: Server2, second DNS: Server3
2. Server2 has first DNS: itself (, second DNS: Server3
3. Server3 has first DNS: itself (, second DNS: Server2

what are the recommended DNS settings in my scenario?
Considering that I need to take down for approx. 1 day Server2?
It is fine to configure external DNS Forwarders (like and on ALL DC?
Thank you

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