So this is one thing that I saw when I was messing around that really made me wish I knew this sooner. Basically you can access the DCUI via SSH through your client of choice as long as the process is running.
First off let’s SSH to the host
Now let’s type DCUI
Go ahead and hit enter and you will get the following
So now you can go ahead and hit F2 and login and start changing settings or shut the box down. To get out of this window go ahead and hit CTRL + C and you will be back to the command line.