What is a AAA Server?
An AAA server refers to the process of authentication, authorization and accounting utilized by the Remote Authentication Dial In User Services (RADIUS) network protocol. RADIUS permits remote users or computers to access a computerized network server. When the AAA server process is not required, a server is called “open” or “anonymous.” RADIUS and AAA server protocol is usually used by internet service providers (ISPs) to identify and bill their clients. It is also used by companies to identify and allow network access to their employees when they are working from a remote location. When a user sends a request for access to a network server from a remote location, it must identify itself to the server. The request is usually composed of “credentials,” which usually take the form of a username and password or passphrase. The request also sends information such as a dial-up phone number or network address for the network to verify the user’s identity. The network checks the user’s infor
