PostgreSQL also known as Postgres, is a free and open-source relational database management system (RDBMS) emphasizing extensibility and SQL compliance. It was originally named POSTGRES, referring to its origins as a successor to the Ingres database ...
Remote Authentication Dial-In User Service (RADIUS) is a networking protocol, operating on port 1812, that provides centralized Authentication, Authorization, and Accounting (AAA or Triple A) management for users who connect and use a network service...
QLCounter Is a module that is used to record user statistics that are entered and written in the database, such as recording the time a user logs in, transfers data, and sessions.
For example activating the Access Period and Quota Limit
sudo nano /...