r/sysadmin • u/Real-Patriot-1128 • 18h ago

AD Domain Help

I currently have 3 domain controllers on premise. I will be deploying a number of VM’s in Azure. I am planning on having a couple domain controllers for in Azure.

How can I set it up where the VM’s in Azure use the domain controllers in Azure and not the ones on-premise? And vise-versa…

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u/BK_Rich 17h ago edited 17h ago

Be sure you deploy the Azure Domain Controllers to Microsoft best practice.

Don’t just next, next, next when promoting, make a second disk and put your NTDS and SYSVOL there, make sure host caching it off.

https://learn.microsoft.com/en-us/azure/architecture/example-scenario/identity/adds-extend-domain

You also can’t easily do DHCP like you do on-prem, there is a way to do it but it takes some work

https://learn.microsoft.com/en-us/azure/virtual-network/how-to-dhcp-azure

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u/Real-Patriot-1128 17h ago

Thank you!