1

I'm having some trouble setting up a Child Active Directory Domain.

I started by installing Windows Server 2012 R2 we will call NICK1 and installed Active Directory Domain Services on this server as domain nicholas.com. I also configured this server as the DNS server.

Now I want to add a child domain sub.nicholas.com.

Here are the steps I performed to create the child domain.

  • Install another copy of Windows Server 2012 R2 we will call NICK2. Configure this server to be a child domain of NICK1's nicholas.com by doing the following:

    • Configure the Network Connection to use NICK1's DNS server.

      • (View Network Connections -> Click on your Ethernet NIC -> Properties -> Double Click your IPv4 protocol in the list -> Click “Use the following DNS Server Address” and set it to the DNS server’s IP address.)
    • Join the nicholas.com domain: Go to “View your PC name” and click “Join a domain”

      • Type the fully qualified domain name of the root active directory domain and join it. Authenticate using the root domain’s admin username/password.

      • Restart when prompted.

      • When you log back in, use the administrator/password from the root domain controller.

    • Install the Active Directory services. (Go to Server Manager -> Add roles or features -> Next -> Next-> Next -> Choose Active Directory Domain Services -> Add features -> Next -> Next -> Next -> Install. Wait for the Active Directory Domain Services to install.)

    • Promote to a domain controller and configure as a sub domain:

      • Go to server manager and Click on the yellow flag
      • Promote this server to a domain controller.
      • Select Add domain to existing forest (The FQDN of the root domain should appear automatically in Parent domain name)
      • Enter the new child domain name sub
      • Enter login credentials for administrator@nicholas.com
      • The defaults for the rest. Install.

This process completes fine and I'm able to log in to the domain controller as the new SUB\Administrator user.

But when I create a new AD user in sub.nicholas.com, I cannot log in as that user.

I also cannot log in as any sub.nicholas.com users in any other services that work with nicholas.com. For example... user@nicholas.com is able to use sharepoint, but otheruser@sub.nicholas.com cannot.

Does anyone know what steps I'm missing to make the sub.nicholas.com domain usable? My main goal is to be able to use SharePoint as a nicholas.com user or a sub.nicholas.com user.

  • Windows Server 2013 is not a thing. Typo? – Ryan Bolger Dec 5 '17 at 18:45
  • yep corrected. thanks. got it mixed up in my head with the sharepoint version i'm using. – Nicholas DiPiazza Dec 5 '17 at 18:46
  • 2
    It shouldn't make a huge difference, but you might also want to clarify whether you are referring to 2012 (the original) or 2012 R2. – Ryan Bolger Dec 5 '17 at 18:50
  • done. i am using the R2 – Nicholas DiPiazza Dec 5 '17 at 18:50
  • Do you have client computers joined to both domains? If so can you verify/clarify which logon attempts work and which don't between domain users and domain computers? E.g., user@nicholas.com can log on to both client computers but user@sub.nicholas.com can only log on to the computer joined to the sub domain or to neither one. – Todd Wilcox Dec 5 '17 at 18:54

Your Answer

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Browse other questions tagged or ask your own question.