For Windows Server2012 server, by default, you can use iis7 Remote Desktop for Administration to log two remote users. By installing Remote Desktop Session Host and Remote Desktop Licensing Remote Desktop Services and configure, allows multiple users to log in remotely.
Remote Desktop Services role services by multiple server roles. In Windows Server 2012, the Remote Desktop Services role services include the following: 
Windows Server 2012 "Remote Desktop Services" server role that allows users to connect to a virtual machine, RemoteApp programs and computer-based technology sessions?. Remote Desktop Services, users can access remote connection from the corporate network or the Internet.
Under Windows Server 2012 by default, can only provide two user remote desktop landing, and configure it, you can achieve multi-user remote login by installing Remote Desktop Services in Remote Desktop Session Host and Remote Desktop license, and. The following describes how to configure Remote Desktop Session Host and Remote Desktop Licensing through the introduction, and how to obtain a license to activate the license server by Microsoft.
First, install Desktop Session Host and Remote Desktop Licensing
1.1. In the lower right corner of the desktop click Server Manager icon to open the "Server Manager", click "Add Roles and Features", select "Role-based or feature-based installation", the following installation interface
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1.2. Next click on the lower interface. 
1.3. Select Remote Desktop Services, click Next. 
1.4. Click Next in the wizard interface. 
1.5. Click Next in the Remote Desktop Services role installation wizard.
1.6. Select the "Desktop Session Host" and "Remote Desktop license" in the pop-up window, click "Add Features" and click Next.
1.7. In the following screen choose to install, the installation is complete, the following screen prompts need to restart the server, on the following screen, click Close and then restart your computer.
