In order to allow remote desktop in Linux (Ubuntu), click on the Search icon > type/search for desktop sharing > click the Desktop Sharing icon.
Enable/tick Allow other users to control your desktop and optionally type a password.
Install VNC Viewer in a Windows machine.
Disable/uncheck Send anonymous usage data to help improve VNC Viewer.
Add the Ubuntu machine by clicking File > New Connection.
Type the Linux remote IP address.
The VNC will prompt an error below.
You'll need the command below in Ubuntu for VNC to work: gsettings set org.gnome.Vino require-encryption false
Connect again to the Linux remote machine and click Continue.
Type the same password configured in Ubuntu.
Ubuntu will display a pop-up message. Just click Allow.
Enable/tick Allow other users to control your desktop and optionally type a password.
Install VNC Viewer in a Windows machine.
Disable/uncheck Send anonymous usage data to help improve VNC Viewer.
Add the Ubuntu machine by clicking File > New Connection.
Type the Linux remote IP address.
The VNC will prompt an error below.
You'll need the command below in Ubuntu for VNC to work: gsettings set org.gnome.Vino require-encryption false
Connect again to the Linux remote machine and click Continue.
Type the same password configured in Ubuntu.
Ubuntu will display a pop-up message. Just click Allow.