This wiki is a community-maintained resource about everything there is to know about IPFire.
Freeradius serves a multi protocol policy server (radiusd) which offers the possibility for a so called AAA functionality which means a centralized Authentication, Authorization, and Accounting management for users who connect and use a network service.
There are multiple authentication methods like PAP, CHAP, MS-CHAP, MS-CHAPv2, SIP Digest and all common EAP types possible.
You can install Freeradius easily via Pakfire or via console with an
pakfire install freeradius
IPFire offers currently no administration webinterface for Freeradius so the configuration needs to be done manually or via SSH. All configuration files can be found under/etc/raddb/ .