sudo apt-get install xrdp
/etc/xrdp/xrdp.ini
[globals]
address=127.0.0.1
Reconnect to the Same Session
Since Ubuntu 14.10, a new xrdp package has been made available in the Ubuntu repository. This package fixes a long time issue related to the fact that users could not reconnect to the same session. If you are using the package xrdp 0.6.1-1, you do not need to perform any customization, you will reconnect automatically to the same session.
http://c-nergy.be/blog/?p=8952