FreeRADIUS
freeradius.orgThe world's leading RADIUS server — fast, feature-rich, modular, scalable.
Securityradiusaaaauthenticationopen-sourcenetworking802.1xietf

About
FreeRADIUS is the most widely deployed open-source RADIUS server in the world, used by major ISPs, telecom companies, enterprises, and educational institutions to authenticate hundreds of millions of users daily. It implements the RADIUS protocol for AAA (Authentication, Authorization, and Accounting) and supports additional protocols like DHCP and ARP. The project is maintained by InkBridge Networks, which offers commercial support and consulting services.
Problem
Organizations need a scalable, flexible, and reliable server to authenticate and authorize millions of network users securely.
For
ISPs, telecom companies, enterprises, and educational institutions needing network authentication
How it works
FreeRADIUS runs as a multi-protocol policy server implementing RADIUS and related protocols, integrating with directories, databases, and identity providers to authenticate and account for user sessions.
Business model
open-source
Status
launched
Company
InkBridge Networks