Quickfire question.... DCs DNS settings

[Jaan]

What's the best option to use for DC dns? does it matter?

 

 

DC1

DNS1 127.0.0.1

DNS2 IP OF DC2

 

DC2

DNS1 127.0.0.1

DNS2 IP OF DC1

 

OR

 

DC1

DNS1 IP OF DC1

DNS2 IP OF DC2

 

DC2

DNS1 IP OF DC2

DNS2 IP OF DC1

 

Just one of those thoughts i had whilst trying to sleep..........

[Arthur]

I currently have my DCs set to option 3, although according to Microsoft option 4 is also fine.

 

[b]DC1[/b]
DNS1 IP OF DC2
DNS2 127.0.0.1

[b]DC2[/b]
DNS1 IP OF DC1
DNS2 127.0.0.1

 

OR

 

[b]DC1[/b]
DNS1 IP OF DC2
DNS2 IP OF DC1
DNS3 127.0.0.1

[b]DC2[/b]
DNS1 IP OF DC1
DNS2 IP OF DC2
DNS3 127.0.0.1

 

https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/ff807362(v=ws.10)

 

The loopback address should be configured only as a secondary or tertiary DNS server on a domain controller.

 

Edit. Fixed typos from copying-and-pasting.

Edited February 15, 2019 by Arthur

[MatthewL]

I have always been told to just set to 127.0.0.1 and noting else.

[Linfit]

I recently set up two new 2019 DC's and it defaulted to the loopback being the 2nd address.

Figured if MS think thats a sensible default, thats what I would go with.

[Jaan]

I recently set up two new 2019 DC's and it defaulted to the loopback being the 2nd address.

Figured if MS think thats a sensible default, thats what I would go with.

 

This is why i queried it....

 

Noticed the same thing

[sparkeh]

Option 3 for me. MS best practice I believe.

 

Just out of curiosity, did MS guidance on this change at some point? I seem to remember, years ago, it being good practice to point the secondary dns at another dns server?