apt-get install xrdp

/etc/xrdp/xrdp.ini

sudo nano /etc/xrdp/xrdp.ini

[xrdp1]
name=sesman-vnc
lib=libvnc.so
username=ask
password=ask
ip=127.0.0.1
port=-1

[xrdp1]
name=customsessionname
lib=libvnc.so
username=myusername
password=ask
ip=127.0.0.1
port=5912

netstat -tulpn | grep vnc

tcp        0      0 127.0.0.1:5911          0.0.0.0:*               LISTEN      5365/Xvnc

cd /etc/xrdp
 cp xrdp.ini xrdp.ini.bak
 sudo gedit /etc/xrdp/xrdp.ini

[globals]
bitmap_cache=yes
bitmap_compression=yes
port=3389
crypt_level=low
channel_code=1

[xrdp1]
name=RDP_To_TightVNC
lib=libvnc.so
username=ask
password=ask
ip=127.0.0.1
port=-1