Download realvnc server application from here
Open a terminal CD
to your downloads folder
cd Downloads/
To install the package issue
sudo dpkg -i VNC-Server-6.8.0-Linux-x64.deb
Next we need to enable the server so that it will stay up even when we reboot the system.
sudo systemctl enable vncserver-x11-serviced.service
That’s it, you can open a VNC Viewer and try connecting to your system.
VNC username and password will be the same linux login credentials.