Register on realvnc.com and activate your account
Download VNC Connect
https://www.realvnc.com/en/connect/download/vnc/linux/
Run VNC Server:
/etc/init.d/vncserver-x11-serviced start
Run Licensing Wizard and login with your realvnc.com account
vnclicensewiz
To autorun VNC Server on boot use this:
sudo update-rc.d vncserver-x11-serviced defaults
Source: