Radius Protocol
Radius Protocol is a networking protocol used for authentication, authorization, and accounting (AAA) management in network access. It operates as a client-server model, typically between a Network Access Server (NAS) and a shared authentication server, to control user access to network resources. It is widely implemented in internet service providers, corporate networks, and wireless networks for secure access control.
Developers should learn Radius Protocol when working on network security, VPN implementations, or any system requiring centralized user authentication and access control. It is essential for building or managing secure network infrastructures, such as enterprise Wi-Fi, dial-up services, or network device administration, where user credentials and permissions must be validated remotely.