$ sudo su -
# apt install openssh-server
# apt install -y gdebi
# wget https://bintray.com/artifact/download/tigervnc/stable/ubuntu-14.04LTS/amd64/tigervncserver_1.4.3-3ubuntu1_amd64.deb
# gdebi tigervncserver_1.4.3-3ubuntu1_amd64.deb
# vncpasswd /etc/vncpasswd
Password:
Verify:
Would you like to enter a view-only password (y/n)? n
# vi /etc/lightdm/lightdm.conf
[VNCServer]
enabled=true
command=/usr/bin/Xvnc -rfbauth /etc/vncpasswd
port=5901
width=1280
height=800
depth=24
# service lightdm restart