I installed a Hyper-V server core and a Win8 PC.
I found both of the machines have to join the AD in order to let the Win8 PC to run the management tools to manage the Hyper-V core. In compare with the ESXi, I can manage the server with a Win7 PC w/ vSphere Client installed.
Is there any way I can manage the Hyper-V Core without required to join the AD??