RADIUS Server Essay


            RADIUS Server is a network protocol server which serves three crucial network management functions. First, it checks and qualifies genuine users or devices prior to permitting their access to the network (Bragg, & Hunt, 2005). Another function of a RADIUS Server is authorizing only authentic users or devices to access the certain network services. The server also account for the use of the device by the user or the device. To achieve this, the RADIUS Server keeps a record of user information such as duration of access, information accessed, user’s identification, unique session identifier, and the point from the user or device is accessing the network (Prasad, 2003).

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            RADIUS is quite important to a company. This is because it allows for remote controlling of access to its network system. Computer and internet crime have been a major source of loss for business. This is because the practices allow unauthorized individuals to gain access or corrupt confidential company information. This dictates for having in place a reliable system for authenticating, authorizing and accounting for the access of company networks, services which are best served by RADIUS (Prasad, 2003). Thus, a company should use RADIUS to protect its networks from access by unauthorized users.

            RADIUS is an application layer network protocol. This means that the process of setting it up requires establishing of a RADIUS Server which contains user identification information and accounting capability (Prasad, 2003). This server is then connected to the various gateways controlling access to the network. It is worthy noting that each of these gateways should have a RADIUS client component to enable them communicate effectively with the RADIUS Server. A UDP transport mechanism is crucial for ensuring the functionality of the RADIUS Server.


Bragg, R., & Hunt, C. (2005). Windows Server 2003 Network Administration. Sebastopol: O’Reilly Media, Inc.

Prasad, K. (2003). Principles of Digital Communication System & Compute Networks. New Delhi: Dreamtech Press.



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