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  2. User identifier - Wikipedia

    en.wikipedia.org/wiki/User_identifier

    User identifier. Unix-like operating systems identify a user by a value called a user identifier, often abbreviated to user ID or UID. 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.

  3. Email address - Wikipedia

    en.wikipedia.org/wiki/Email_address

    An email address consists of two parts, a local-part (sometimes a user name, but not always) and a domain; if the domain is a domain name rather than an IP address then the SMTP client uses the domain name to look up the mail exchange IP address.

  4. Email - Wikipedia

    en.wikipedia.org/wiki/Email

    Email is also used. EMAIL was used by CompuServe starting in April 1981, which popularized the term. EMail is a traditional form used in RFCs for the "Author's Address". The service is often simply referred to as mail, and a single piece of electronic mail is called a message. The conventions for fields within emails—the "To", "From", "CC ...

  5. Digital identity - Wikipedia

    en.wikipedia.org/wiki/Digital_identity

    Database identity is the collection of data that is registered about an individual within the databases of the scheme and transaction identity is a set of information that defines the individual's identity for transactional purposes. Although there is reliance on the verification of identity, none of the processes used are entirely trustworthy.

  6. User (computing) - Wikipedia

    en.wikipedia.org/wiki/User_(computing)

    t. e. A user is a person who utilizes a computer or network service. A user often has a user account and is identified to the system by a username (or user name ). [a] Some software products provide services to other systems and have no direct end users .

  7. User profile - Wikipedia

    en.wikipedia.org/wiki/User_profile

    User profile. A user profile is a collection of settings and information associated with a user. It contains critical information that is used to identify an individual, such as their name, age, portrait photograph and individual characteristics such as knowledge or expertise. [1] User profiles are most commonly present on social media websites ...

  8. Online identity - Wikipedia

    en.wikipedia.org/wiki/Online_identity

    Online identity. Internet identity ( IID ), also online identity, online personality, online persona or internet persona, is a social identity that an Internet user establishes in online communities and websites. It may also be an actively constructed presentation of oneself. Although some people choose to use their real names online, some ...

  9. Email authentication - Wikipedia

    en.wikipedia.org/wiki/Email_authentication

    Email authentication, or validation, is a collection of techniques aimed at providing verifiable information about the origin of email messages by validating the domain ownership of any message transfer agents (MTA) who participated in transferring and possibly modifying a message. The original base of Internet email, Simple Mail Transfer ...