I have a new W2K8R2 server that must be joined to an exiting W2K3 Domain then I must DCPROMO to a Domain Controller. Is it safe to perform those tasks remotely from an RDP connection? I don't believe I have ever performed those tasks connected remotely
in that manner. Will that present any problems or be risky or unrecommended in any way.
You can promote server to domain controller role via RDP. Also as you mention above that you are going to add 2k8 R2 sever as DC in your existing 2K3 environment so you need to prepare your environment for the same. Please check below artical for your reference.
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