This is how VNC Server is installed in Ubuntu 18.04 LTS
sudo apt update
sudo apt upgrade
sudo apt-get install ubuntu-desktop gnome-panel gnome-settings-daemon metacity nautilus gnome-terminal
sudo apt update
sudo apt upgrade
sudo apt-get install vnc4server
vncserver
sudo nano ~/.vnc/xstartup
#!/bin/sh
# Uncomment the following two lines for normal desktop:
# unset SESSION_MANAGER
# exec /etc/X11/xinit/xinitrc
`[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup` `[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources` `xsetroot -solid grey` `vncconfig -iconic &` `x-terminal-emulator -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &` `x-window-manager &`
gnome-panel &
`gnome-settings-daemon &`
metacity &
``
nautilus &
$ chmod 700 ~/.vnc/xstartup
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