The FreeRADIUS project is an open source, multi-protocol (RADIUS, EAP, DHCP, BFD) policy server. FreeRADIUS' primarily role is a AAA (Authentication, Authorization, and Accounting) server, but can also be used as part of an IPAM (IP Address Management) solution, and as an event distribution server.
The FreeRADIUS project, an open source implementation for the RADIUS, EAP, DHCP and BFD protocols.
The project includes a daemon implementing the above protocols, a BSD licensed RADIUS client library, a RADIUS PAM library, and an Apache module translating HTTP Basic-Authentication to RADIUS PAP authentication.
RADIUS, Remote Authentication Dial In User Service, is a networking protocol that provides centralized Authentication, Authorization, and Accounting (AAA) management for computers to connect and use a network service.