How to add a Backup Domain Controller to an existing Active Directory Domain
An Active Directory Domain with a unique Primary Domain Controller (PDC) is something that you should not rely on. A hardware failure can make your day a really bad one and, for this reason, Microsoft give us the possibility to add a (or more) Backup Domain Controller (BDC) to our domain.
The configuration is quite simple on Windows Server 2012 // R2, a much appreciated gift from Redmond.
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