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Managed AD, Multi Region, Limited to 5 : How to use same domain in more regions?


We have hundreds of machines spread across 12 regions. We started implementing AWS Directory Service Managed AD with multi-region Replication and ran up against the 5 region limit (why the limit if I'm willing to pay for the additional regions?). We'd like to have all of the instances in the same domain as we are a global organization and use machines around the world for sales, service and support of our software products.

What is the best practice and architecture (and how) to get domain services into the remaining 7 regions?

3 Answers
Accepted Answer

The limit of 5 regions is a soft limit. Please open a support case to request a limit increase.

answered 12 days ago

Hi Metageek,

I understand you have hundreds of machines spread across 12 regions and want to use the same domain in the 12 regions.You further more want to know the best practice and architecture of AWS domain services.

Please note Multi-Region replication can be used to automatically replicate your AWS Managed Microsoft AD directory data across multiple Regions.

AWS Managed Microsoft AD is available in two editions, Standard and Entrerprise. Link [1].

However Multi-Region replication is only supported for Enterprise Edition of AWS Managed Microsoft AD. Please be on the lookout for feature realize on this link [2] because this feature is unavailable in the following regions:

• Africa (Cape Town) af-south-1 • Asia Pacific (Hong Kong) ap-east-1 • Europe (Milan) eu-south-1 • Middle East (Bahrain) me-south-1

I hope this helps.




answered 12 days ago
  • Thanks for the general information on directory services. As I've said, I've already deployed to 5 regions so I'm beyond the basics.

-1 While you can increase the soft limit You can consider this - share a single directory with other trusted AWS accounts within the same organization or share the directory with other AWS accounts that are outside your organization. You can also share your directory when your AWS account is not currently a member of an organization.

answered 12 days ago
  • Directory sharing is a Regional feature of AWS Managed Microsoft AD. You can not use sharing in regions where the directory does not exist.

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