How To Decommission a Domain Controller (Best Practice)

In this video we cover the steps necessary to successfully decommission a domain controller in your environment. We specifically walk through transferring FSMO (Flexible Single Master Operation) roles to another DC using Powershell.

Once the DC has been decommissioned we take you step by step on the processes that are needed for post decommission and cleanup. You'll need to make sure you clean up Sites and Services, DNS and update any static IPs that may be pointing to the old, decommissioned DC. For those machines that have DHCP enabled, you would just need to update that and verify those client settings get those updated records. The steps in this video also work for Server 2016 and Server 2019 to demote a Domain Controller.

More information on transferring FSMO Roles:
https://thesysadminchannel.com/how-to...

00:00 Intro of video
00:11 Begin Transferring FSMO Roles
01:51 Remove AD Role and Demote DC
04:38 Post Decom Cleanup AD
05:02 Post Decom Cleanup Sites and Services
05:45 Post Decom Cleanup DNS
06:18 Post Decom Cleanup Updating DNS for static IPs