1. raspbian write TF-hours
2. The establishment of a free SSH file format for opening SSH service
3. Next, configure the internal source
# Update and configure a data source (source TUNA)
the sudo Nano /etc/apt/sources.list
the deb http://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/ Buster main non-Free contrib
the deb the src-HTTP: //mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/ buster main non-free contrib
sudo nano /etc/apt/sources.list.d/raspi.list
deb http://mirrors.tuna.tsinghua.edu.cn/raspberrypi/ buster main ui
deb-src http://mirrors.tuna.tsinghua.edu.cn/raspberrypi/ buster main ui
# Update the list
sudo APT-GET Update
sudo APT-GET upgrade
# Install Windows Remote Access
sudo apt-get install xrdp