
Keeping it blank will keep your server unmanageable remotely, since accounts with a blank password cannot be used as a network credential. While some qualify this behavior as secure (some requirements should be met) others might not. In early versions of Windows Server Codename "Longhorn" and Windows Server 2008 the standard password for your administrator account would be blank.

The only restriction is you're only granted one simultaneous Remote Desktop session… (instead of two in the Full installation)

These ways allow you to manage your Server Core machines from the comfort of your own office (or cubicle) or home. I believe it's time to look at the ways you can remotely manage your Server Core boxes.

Not all system administrators feel comfortable on the command line and most system administrators don't feel comfortable behind the console of their servers in their airconditioned and windowless (no pun intented) serverrooms for longer periods of time.
