Server Message Block (SMB) is an application-layer network protocol that facilitates network communication while providing shared access to client files, printers and serial ports. SMB is prevalent in Microsoft Windows operating systems released prior to the Active Directory protocol, where it was known as Microsoft Windows Network. SMB is also...
Authentication, authorization and accounting (AAA) is a system for tracking user activities on an IP-based network and controlling their access to network resources. AAA is often is implemented as a dedicated server.
This term is also referred to as the AAA Protocol.
Authentication refers to unique identifying information from each system user, generally in the form of a username and password. System administrators monitor and add or delete authorized users from the system.
Authorization refers to the process of adding or denying individual user access to a computer network and its resources. Users may be given different authorization levels that limit their access to the network and associated resources. Authorization determination may be based on geographical location restrictions, date or time-of-day restrictions, frequency of logins or multiple logins by single individuals or entities. Other associated types of authorization service include route assignments, IP address filtering, bandwidth traffic management and encryption.
Accounting refers to the record-keeping and tracking of user activities on a computer network. For a given time period this may include, but is not limited to, real-time accounting of time spent accessing the network, the network services employed or accessed, capacity and trend analysis, network cost allocations, billing data, login data for user authentication and authorization, and the data or data amount accessed or transferred.
Examples of AAA protocols include:
Types of AAA servers include:
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