Like most universities across the country, my university provides network access with a "one person, one account" policy. When connecting via wired network or Wi-Fi, all requests are temporarily redirected to a login page (i.e., Captive Portal), and only after entering the username and password can one access the internet. This practice is standard in most public places (such as airports, coffee shops) and is relatively friendly to devices like computers and smartphones. However, devices without a display (such as Raspberry Pi, ESP8266, etc.) have difficulty accessing the network. For systems like Raspberry Pi and ESP8266 that can run custom code, it is possible to simulate form submissions to log into the network. However,...