https://linuxconfig.org/ubuntu-20-04-remote-desktop-access-from-windows-10
11 May 2020
In this tutorial we will be sharing an Ubuntu 20.04 desktop with a Windows 10 client.
In this tutorial you will learn:
First step is to install Remote Desktop Protocol (RDP) server xrdp
on the Ubuntu 20.04 desktop. To do so execute the following command:
$ sudo apt install xrdp
Enable to start after reboot and run the remote desktop sharing server xrdp
:
$ sudo systemctl enable --now xrdp
Still on the Ubuntu 20.04 desktop, open a firewall port 3389
for an incoming traffic:
$ sudo ufw allow from any to any port 3389 proto tcp

Move to Windows 10 host and open the Remote Desktop Connection client. Use the search box to search for `remote` keyword and click on the `Open` button.

Enter the Ubuntu's remote desktop share IP address or hostname. Optionally, allow the Windows 10 to save your credentials.

Click `Yes` when prompted by message: `The identity of the remote computer cannot be verified.`

Enter the password of the remote Ubuntu user.

You should now be remotely connected to the Ubuntu Desktop share from your Windows 10 computer.