Seven Free or Low-Cost RADIUS Servers for Your Enterprise Network

By Jabez Gan | Posted Jul 24, 2015
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  • Previous
    Enterprise RADIUS Servers
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    Enterprise RADIUS Servers

    If you want to bring your existing identity services to your mobile users, these RADIUS servers can do it for very little money.
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    FreeRADIUS
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    FreeRADIUS

    Since they're working on the most widely used free RADIUS server, the developers of FreeRADIUS software have extra motivation to enhance the software constantly. Updates come out every few months, ensuring that users are not only getting the basic features of a RADIUS server, but also commercial-grade security features as well. FreeRadius can integrate with Active Directory and Novell eDirectory for identity management, and is a good option if Internet Authentication Server (IAS) -- found in Windows Server 2003 or Network Policy Server (NPS) in Windows Server 2008 -- is not good enough for you. Available for Linux/Unix only.
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    FreeRADIUS.NET
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    FreeRADIUS.NET

    Due to the limitations of the original FreeRADIUS, FreeRADIUS.net ported the server to work on the Windows platform. Just like any other software, the developers can stall development anytime they want. This is the case for FreeRADIUS.net, which only offers builds up to version 1.1.7, which is two years old. FreeRADIUS.net is only good for smaller businesses looking to deploy RADIUS on an existing Windows machine, and who do not care about support. Available for Windows only.
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    TekRadius
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    TekRadius

    The easiest to configure and use of the no-cost RADIUS servers on Windows, TekRadius provides a good option for companies who want to set up a RADIUS server on their existing backend infrastructure which runs on Windows XP/Vista. TekRadius is stable and easy to use. The key features that I love about TekRadius include: • Ability to expire users • Ability to check users' credit limits • A nice interface to browse accounting records Available for Windows only.
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    RADIUS GNU
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    RADIUS GNU

    RADIUS GNU works exactly the same as FreeRADIUS above, except that it supports a wider range of authentication schemes, including: • System Database: User credentials are stored in /etc/passwd • Internal Database: User credentials are stored in the internal RADIUS database • SQL authentication: User credentials are stored in a standard SQL database • PAM (Pluggable Authentication Service) authentication: Applications are not required to be re-written to support different authentication schemes. See this documentation on Linux PAM for more information. Other than the above authentication schemes, there's no major difference with this RADIUS server software. Available for Linux/Unix only.
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    Paid RADIUS servers
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    Paid RADIUS servers

    Network Policy Server (NPS) or Internet Authentication Service (IAS) is a built-in service from Windows Server. It integrates by default with Active Directory. With the GUI, the configuration becomes a breeze. NPS and IAS are good only if the backend infrastructures rely on Microsoft technologies. Available for Windows Server only.
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    Elektron
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    Elektron

    Elektron is one of the more affordable options for getting a quality, secure and user-friendly RADIUS server. Most importantly, it does not cost a lot. Unlike the free RADIUS servers listed above, Elektron also supports VPN and dial-in authentications. I highly recommend Elektron if you want to have a reliable, non-Microsoft alternative RADIUS server. Available for Windows and MacOS only.
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    Aradial
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    Aradial

    The last RADIUS server that I want to highlight is Aradial. Aradial is one of the oldest RADIUS servers out there, and it is used mainly by companies that want to charge their users for the usage, e.g. ISPs. Through Aradial, users need to purchase prepaid cards or vouchers before their accounts are usable. If you want to setup a chargeable hotspot for your users to connect to, Aradial is the one for you. Available for Windows, Linux and Solaris.

If you want to bring your existing identity services to your mobile users, these RADIUS servers can do it for very little money.

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