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What is FreeRADIUS?

FreeRADIUS is an open-source implementation of the RADIUS (Remote Authentication Dial-In User Service) protocol, serving as a server for AAA (Authentication, Authorization, and Accounting) functions. It is designed to cater to organizations of all sizes, from small businesses to large enterprises and...

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Product Demos

OSM#11 Hackfest - FreeRadius CNF Onboarding Demo (Team1)


Demo Feature การพัฒนาระบบเพื่อใช้งาน FreeRADIUS


CentOS FreeRadius Demo Installation by Amnuay Pintong

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Product Details

What is FreeRADIUS?

FreeRADIUS is an open-source implementation of the RADIUS (Remote Authentication Dial-In User Service) protocol, serving as a server for AAA (Authentication, Authorization, and Accounting) functions. It is designed to cater to organizations of all sizes, from small businesses to large enterprises and service providers. FreeRADIUS finds extensive use in various professions and industries, including Internet Service Providers (ISPs), telecommunications companies, educational institutions, enterprise networks, and network equipment vendors, for centralized user authentication and authorization purposes.

Key Features

AAA for millions: According to the vendor, FreeRADIUS provides AAA (Authentication, Authorization, and Accounting) services for a large number of subscribers. It can handle a high volume of authentication requests and supports various authentication methods and protocols.

Infinitely flexible policy language: The vendor claims that FreeRADIUS offers an infinitely flexible policy language, allowing administrators to define and enforce fine-grained access control policies. This feature enables organizations to customize their authentication and authorization rules based on their specific requirements.

Global AAA servers: FreeRADIUS supports the deployment of global AAA (Authentication, Authorization, and Accounting) servers, as stated by the vendor. This functionality enables organizations with distributed networks to have centralized authentication and authorization services, ensuring consistent access control across multiple locations.

Active Directory integration: According to the vendor, FreeRADIUS seamlessly integrates with Active Directory, allowing organizations to leverage their existing user directory infrastructure for authentication and authorization purposes. This integration simplifies user management and enhances security by leveraging Active Directory's robust features.

Eduroam and WiFi: FreeRADIUS is widely used in educational institutions, supporting services like eduroam and WiFi, according to the vendor. It enables institutions to provide secure and seamless authentication for their students, faculty, and staff, ensuring reliable access to network resources.

Flexible protocol support: According to the vendor, FreeRADIUS supports a wide range of protocols, including RADIUS, DHCP, BFD (Bidirectional Forwarding Detection), and ARP (Address Resolution Protocol). This flexibility allows organizations to leverage FreeRADIUS for various network authentication and authorization needs.

Extensive data store support: FreeRADIUS provides support for various data stores, including LDAP, SQL databases (such as MySQL, PostgreSQL, and Oracle), Redis, and more, as stated by the vendor. This allows organizations to choose the most suitable data store for their user and policy information, ensuring efficient and scalable operations.

Modular architecture: The vendor claims that FreeRADIUS follows a modular architecture, allowing administrators to extend its functionality by adding custom modules. This modular approach enables organizations to tailor FreeRADIUS to their specific requirements and seamlessly integrate it with other systems.

Comprehensive logging and auditing: According to the vendor, FreeRADIUS offers comprehensive logging and auditing capabilities, enabling administrators to track and monitor authentication and accounting activities. This feature helps in troubleshooting, compliance adherence, and detecting security incidents.

Scalability and high availability: FreeRADIUS is designed to be highly scalable and supports clustering and load balancing for high availability deployments, as stated by the vendor. This ensures that organizations can handle increasing authentication loads and maintain uninterrupted services.

FreeRADIUS Technical Details

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Reviews and Ratings



(1-1 of 1)
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Score 9 out of 10
Vetted Review
Verified User
We use FreeRADIUS to authenticate our users to wifi. It eliminates the issue of a shared password and the security flaws that follow that idea as employees come and go. Also by utilizing this system we can allocate the appropriate network resources based on the account that logs in. Since radius servers are widely accepted we are able to use this user database with a variety of services.
  • FreeRADIUS is easy to configure
  • It is fast a lightweight footprint on the server
  • FreeRADIUS works universally with other systems that support radius authentication
  • FreeRADIUS requires a 3rd party interface to make it easier to access (we use Daloradius) - it would nice if it was built in.
  • Installation and configuration are pretty easy and straightforward but does require connecting to a database which can be cumbersome.
FreeRADIUS is completely scalable and supports both large and small user databases. Because it doesn't take up a lot of server resources, FreeRADIUS is well-suited for organizations with small budgets (it's in the name!) and limited networking hardware. While there is a port of it for Windows, FreeRADIUS is native to Linux so that would be a limitation for many companies who don't use it.
  • Lightweight
  • Fast
  • Easy to Use
  • Free!
  • We previously used Microsoft Network Policy Server for our RADIUS authentication which works ok but was pretty clunky and requires Windows Server. Switching to FreeRADIUS brought our cost down to zero.
  • Because FreeRADIUS works natively in Linux it's easy to setup and works with all distros.
  • FreeRADIUS allows us to have user authentication for wifi which is much more secure than a simple shared password solution.
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