ALERT

[WEBINAR] See the Whole Story: The Case for a Visualization Platform

Remote Authentication Dial-in User Service (RADIUS)

Definition - What does Remote Authentication Dial-in User Service (RADIUS) mean?

Remote Authentication Dial-In User Service (RADIUS) is a network protocol that provides security to networks against unauthorized access. RADIUS secures a network by enabling centralized authentication of dial-in users and authorizing their access to use a network service. It manages remote user authentication, authorization and accounting (AAA).

RADIUS is used by many companies to enable roaming between Internet service providers (ISPs), providing a single global set of credentials to be used on any public network. It is also used by independent or collaborating companies, which provide their own credentials to their own service users.

RADIUS is an open protocol distributed as a source code.

Techopedia explains Remote Authentication Dial-in User Service (RADIUS)

RADIUS was originally developed by the American corporation Livingston Enterprises in 1991. It is a network protocol for managing access server authentication and accounting as defined in Request for Comments (RFC) 2865, which was later moved into the Internet Engineering Task Force standards.

RADIUS supports maintaining company user profiles in a central database, where all remote servers connected to the central server are able to share the information. RADIUS is most widely used by Internet service providers and business enterprises because of its ubiquitous nature and broad support. It is used to authenticate access to internal and wireless networks and other integrated email services. These networks may use modems, virtual private network ports, Web servers, digital subscriber line (DSL), etc.

RADIUS performs three major functions:

  • Authenticates users trying to establish a connection to a network
  • Authorizes users to access requested network services
  • Accounts for the use of those services

Connect with us

Techopedia on Linkedin
Techopedia on Linkedin
Tweat cdn.techopedia.com
"Techopedia" on Twitter


'@Techopedia'
Sign up for Techopedia's Free Newsletter!

Email Newsletter

Join thousands of others with our weekly newsletter

Resources
Free Whitepaper: The Path to Hybrid Cloud
Free Whitepaper: The Path to Hybrid Cloud:
The Path to Hybrid Cloud: Intelligent Bursting To Amazon Web Services & Microsoft Azure
Free E-Book: Public Cloud Guide
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.