FreeRADIUS is a free and open-source implementation of the RADIUS protocol. In this tutorial we’ll install FreeRADIUS on a server running Ubuntu 20.04, configure it to work with MySQL/MariaDB, and install daloRADIUS, a popular RADIUS management web panel.

Source: LXer – Install FreeRADIUS & daloRADIUS on Ubuntu 20.04 + MySQL/MariaDB