Ref: https://websiteforstudents.com/connect-to-ubuntu-16-04-17-10-18-04-desktop-via-remote-desktop-connection-rdp-with-xrdp/
1. Ubuntu desktop Install Xrdp Server
sudo apt install xrdp
sudo systemctl enable xrdp
2.
3. (取消查核)
4. 注意不可同時以相同帳號登入,遠端使用者須先自Ubuntu Desktop中登出,否則Remote desktop 會閃退。