The basic concepts, the installation, and the usage of Docker (on Linux)

Deploy free SSL certificates issued by 'Let's Encrypt' for all of your sites, automatically, and renew certificates with a simple command.

Lecture notes for Signals and Systems, ShanghaiTech EE150, Spring 2022

Some commonly used git commands and concepts, for beginners.

Install SSL certificate on Nginx to enable https for your website.

Deploy hexo to your personal server, using git and nginx.