Hello CGOhio,
Thank you for posting in Q&A forum.
For back up Domain Controller, we suggest you use built-in Windows Server Backup tool below. You should install this role on every Domain Controller.
Backup Once or backup Schedule.
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Select backup configuration: Full server (recommended) or Custom (System state)
Then Active Directory Sites and Services and DNS will be backup by this way.
Here you can restore all the data you backed up.
Hope the information above is helpful.
If you have any question or concern, please feel free to let us know.
Best Regards,
Daisy Zhou
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