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  2. User identifier - Wikipedia

    The UID, along with the group identifier (GID) and other access control criteria, is used to determine which system resources a user can access. The password file maps textual user names to UIDs. UIDs are stored in the inodes of the Unix file system, running processes, tar archives, and the now-obsolete Network Information Service.

  3. Identity management - Wikipedia

    Identity management ( IdM ), also known as identity and access management ( IAM or IdAM ), is a framework of policies and technologies to ensure that the right users (that are part of the ecosystem connected to or within an enterprise) have the appropriate access to technology resources.

  4. RADIUS - Wikipedia

    v. t. e. Remote Authentication Dial-In User Service ( RADIUS) is a networking protocol that provides centralized authentication, authorization, and accounting ( AAA) management for users who connect and use a network service. RADIUS was developed by Livingston Enterprises in 1991 as an access server authentication and accounting protocol.

  5. Federated identity - Wikipedia

    SSO is a subset of federated identity management, as it relates only to authentication and technical interoperability. Centralized identity management solutions were created to help deal with user and data security where the user and the systems they accessed were within the same network – or at least the same "domain of control".

  6. User agent - Wikipedia

    User agent identification[edit] When a software agent operates in a network protocol, it often identifies itself, its application type, operating system, device model, software vendor, or software revision, by submitting a characteristic identification stringto its operating peer.

  7. Single sign-on - Wikipedia

    Single sign-on ( SSO) is an authentication scheme that allows a user to log in with a single ID to any of several related, yet independent, software systems. True single sign-on allows the user to log in once and access services without re-entering authentication factors.

  8. Universally unique identifier - Wikipedia

    On POSIX systems, local-domain numbers 0 and 1 are for user ids ( UIDs) and group ids ( GIDs) respectively, and other local-domain numbers are site-defined. [6] On non-POSIX systems, all local domain numbers are site-defined. The ability to include a 40-bit domain/identifier in the UUID comes with a tradeoff.