xrdp offers a graphical login to a remote client using
 RDP (the Remote Desktop Protocol). xrdp can connect to
 a locally created X.org session with the xorgxrdp drivers,
 to a VNC X11 server, and forward to another RDP server.
 .
 xrdp accepts connections from freerdp, rdesktop, and the
 built-in terminal server / remote desktop clients of
 Microsoft Windows operating systems.
 In the xorgxrdp (which replaces X11RDP) and VNC modes,
 it provides a fully functional Linux terminal server,
 offering an X-Window desktop to the user. In the RDP
 or VNC forwarding mode, any sort of desktop can be used.