What is one of the core functions of RADIUS in a network?

One of the core functions of RADIUS is to authenticate user login attempts. RADIUS, which stands for Remote Authentication Dial-In User Service, is a networking protocol that provides centralized Authentication, Authorization, and Accounting (AAA) management for users who connect and use a network service.

When a user attempts to log in to a network, RADIUS assesses the login credentials provided against stored user profiles and determines whether to grant or deny access. This process ensures that only authorized users can access the network services, enhancing security by verifying the identity of users before allowing them to connect.

This critical authentication process plays a vital role in maintaining network integrity and security, particularly in environments where secure access control is essential. By managing authentication centrally, RADIUS streamlines the login process for users while safeguarding the network from unauthorized access.