Install packages:
sudo apt install tigervnc-standalone-server xserver-xorg-core tigervnc-xorg-extension
Set VNC password:
vncpasswd
Write to ~/.vnc/xstartup:
#!/bin/sh
[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup
[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
vncconfig -nowin &
dbus-launch --exit-with-session gnome-session &
Make startup script executable:
chmod +x ~/.vnc/xstartup
Start VNC server:
vncserver -localhost no -geometry 3840x2160 -depth 24
List running VNC servers:
vncserver -list
Stop VNC server:
vncserver -kill :1