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I m starting to explore the AWS simple AD services.

I have AWS simple AD setup in my AWS VPC, I have one window and one Ubuntu EC2 instances setup in this VPC as well.

I use this Windows server to create users and groups, and it also works well for my EC2 instance to join the Domain I setup in the Simple AD through realm and sssd.

Since when I launch these 2 instances, I can choose "Domain join directory" under the Advanced details, so I guess this is one of the reasons why my instances can discover the AD. Reference Link: https://docs.aws.amazon.com/directoryservice/latest/admin-guide/simple_ad_launching_instance.html https://docs.aws.amazon.com/directoryservice/latest/admin-guide/simple_ad_join_linux_instance.html

However, I don't know how to let my ubunut server which create outside of AWS to discover the domain I setup on the simple AD.

ubuntu@hostname:~# realm discover example.com 
realm: No such realm found: example.com

I think first I need to make sure the server outside of AWS should communicate to the VPC where the AD is located.

But I m still not sure what's will be the whole steps to make it works.

Thanks if anyone can provide some thoughts or ideas.

Yvette Lau
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  • Did you mean to tag this question with Realm, part of [MongoDB Realm](https://www.mongodb.com/docs/realm/) the database? – Jay Mar 17 '23 at 20:59
  • @Jay Hi, Jay. I don't know so much Mongo DB, so not sure if the Realm in MongoDB is the same as this one : https://codymoler.github.io/tutorials/ubuntu-active-directory/ The Realm I mean is used realm to let the Linux server join the active directory domain. Please let me know if my explanation is unclear enough, I will provide the information if you want more. – Yvette Lau Mar 20 '23 at 12:25
  • The Realm tagged in the question is a relational database and has nothing to do with Active Directory so I think that's an incorrect tag. – Jay Mar 20 '23 at 17:31
  • ok, I removed the tag for the realm, do you have any answer to this question? – Yvette Lau Mar 20 '23 at 17:44
  • I do not - I support Realm tagged questions only, which is why I saw it. – Jay Mar 20 '23 at 17:46

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