In mainland China, the need for scientific Internet access has always existed for technical personnel and certain groups. From the earliest VPNs to Shadowsocks, to V2Ray, and the latest Xray, the goal is to freely access the internet and obtain necessary information. This article describes the configuration of scientific Internet access in command-line mode on a Linux PC. This non-GUI configuration has few external dependencies, allowing you to access the latest features without waiting for other software updates. Similar operations should be possible on Macs, but Macs have a better software ecosystem, so you can generally download and install the corresponding app without manual configuration.