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troubleshooting Question

Active Directory Domain Name with On-Premisis Exchange Server: Split-Brain DNS (split DNS)

Avatar of Segulus
SegulusFlag for United States of America asked on
ExchangeWindows NetworkingActive Directory
8 Comments1 Solution94 ViewsLast Modified:
Searching the Web produces many articles offering Best Practices for naming the Active Directory Domain on a local LAN.

The prevailing sentiment seems to be to use a subdomain of the entity's primary FQDN.  For example, the company widget.com might have an AD domain of ad.widget.com or corp.widget.com.  The LAN AD would use a unique subdomain of the primary FQDN.

My question has to do with Exchange in the above setting.  It seems that the recommended configuration for Exchange is to use  Split-Brain DNS (split DNS).  Unless I am misunderstanding this, that would suggest that I should name the local LAN widget.com (rather than ad.widget.com or corp.widget.com).

I would like to better understand the pro's and cons of choosing to configure my AD Domain as a subdomain (e.g. ad.widget.com), and the impact on deploying an on-premisis Exchange server in that environment.

Please advise.

Thank You.