Demote Existing Domain

Hammoudeh 346 Reputation points
2021-01-27T08:39:52.463+00:00

Hello All,

I have existing Active directory 2019 "single DC" and exchange 2013. no workstation is joined domain yet. i want to demote the only DC and exchange" and add new AD "from scratch". Now i want to use the same domain name. Is there any concerns using the same domain name.

Note: i have SSL certificate from digicert with the existing domain name and i want to use it for the new setup. I will change DNS ip on the firewall "add the new DC ip".

should i change the domain name?

BR,

Active Directory
Active Directory
A set of directory-based technologies included in Windows Server.
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  1. Thameur-BOURBITA 32,596 Reputation points
    2021-01-27T10:42:41.543+00:00

    Hi,

    If you will decommission the old domain by demoting the last domain controller before installing new domain from scratch , you can reuse the same domain name.

    But , if you want promote the new domain before demoting the old domain , in this case you should choose another domain name.


    Please don't forget to mark helpful reply as answer

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  2. Dave Patrick 426.2K Reputation points MVP
    2021-01-27T14:11:03.74+00:00

    From a windows active directory perspective there is no problem with this plan. May want to also ask for an exchange perspective over here in dedicated forums.
    https://learn.microsoft.com/en-us/answers/topics/office-exchange-server-deployment.html

    --please don't forget to Accept as answer if the reply is helpful--

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