sudo nano /etc/apt/sources.list

https://mirrors.tuna.tsinghua.edu.cn/help/ubuntu/

sudo apt-get update
sudo apt-get upgrade

sudo apt install xorg
sudo apt install xfce4
sudo apt install xrdp

sudo sed -i 's/port=3389/port=3390/g' /etc/xrdp/xrdp.ini
sudo echo xfce4-session >~/.xsession
sudo service xrdp restart

远程桌面连接
127.0.0.1:3390