While Command Prompt from the console, remote PowerShell connections, remote Server Manager administration, and even the RSAT tools running on a Windows 10 workstation are all valid and powerful tools for administering our Server Core instances, they have all now been upstaged by the release of Windows Admin Center. You have already learned what Windows Admin Center can do for centrally managing your entire server infrastructure, but what we need to point out here is that WAC can be used for servers both with and without graphical interfaces.
I have spoken with many Windows Server administrators about the topic of Server Core, and one of the biggest blocks to implementing these more efficient and secure server platforms is an apprehension that, once configured, ongoing administration and maintenance of these servers will be more difficult...