Short for Remote Authentication Dial-In User Service, RADIUS harkens back to the days of dial-in Internet and network access through public switched telephone networks. It has remained the de facto standard for lightweight authentication ever since and is supported in virtually all switches, routers, access points, and VPN concentrators shipped in the past two decades.
Source: New Blast-RADIUS attack breaks 30-year-old protocol used in networks everywhere | Ars Technica
Remote Authentication Dial In User Service (RADIUS) is a networking protocol that provides centralized Authentication, Authorization, and Accounting (AAA) management for computers to connect and use a network service. RADIUS was developed by Livingston Enterprises, Inc., in 1991 as an access server authentication and accounting protocol and later brought into the Internet Engineering Task Force (IETF) standards.[1]
CoovaChilli is an open-source software access controller for captive portal (UAM) and 802.1X access provisioning, based on the popular (but now defunct) ChilliSpot project, and is actively maintained by an original ChilliSpot contributor. CoovaChilli is released under the GNU General Public License (GPL). Contact us for commercial support and licensing options.
via Coova :: Open Source Captive Portal Access Controller and RADIUS Software |.