A powerful, open-source RADIUS server designed for ISPs, enterprise networks, and carriers. Supports standard RADIUS protocols, a full EAP / 802.1X authentication suite (EAP-TLS, PEAPv0/EAP-MSCHAPv2, EAP-TTLS), RadSec (RADIUS over TLS), and a modern Web management interface.

Make the radius server as part of keycloak SSO

RADIUS protocol stack for Erlang.

Java library for building RADIUS clients and RADIUS servers

A Go-based RADIUS server that authenticates users against Keycloak

Plain C99 RADIUS AAA library (With optional reference C++ wrappers, server and client)

RADIUS protocol library for TypeScript/Node.js with packet parsing, construction, UDP server/client, FreeRADIUS dictionary support, vendor-specific attributes, and password encryption

🔒 Build a Go-based RADIUS server to authenticate users against Keycloak, supporting OTP and password flows with high performance and customizable configurations.