Microsoft provides the Remote Server Administration Tools (RSAT) to let administrators manage Windows Server 2012 with Windows 8. Installing the tools on a workstation with Windows 8 gives you all of the administration tools you need for managing Windows Server 2012.
In addition to the various management tools for the server roles, the RSAT installation wizard also adds the new Server Manager from Windows Server 2012 to Windows 8. Using Server Manager, you can connect the various servers on which Windows Server 2012 is installed to the network. You also can use Server Manager on a Windows 8 workstation to install server roles on servers.
The Remote Server Administration Tools for Windows 8 include Server Manager, management tools for server roles and features of Windows Server 2012, PowerShell cmdlets, and command-line tools for the management of roles and features. The Remote Server Administration Tools can be downloaded as a .msu file directly in the Download Center. To use Server Manager in Windows Server 2012 and Windows 8 to connect to more servers, click on 'Manage' and then 'Add Server' . In the window, you can then search for servers and manage them in your local Server Manager.