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  2. Nextdoor - Wikipedia

    en.wikipedia.org/wiki/Nextdoor

    Nextdoor Holdings, Inc. Nextdoor Holdings, Inc. is an American company that operates a hyperlocal social networking service for neighborhoods. The company was founded in 2008 and is based in San Francisco, California. Nextdoor launched in the United States in October 2011, [3] and is available in 11 countries as of May 2023. [4]

  3. 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 ...

  4. 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.

  5. Cisco Discovery Protocol - Wikipedia

    en.wikipedia.org/wiki/Cisco_Discovery_Protocol

    Cisco Discovery Protocol ( CDP) is a proprietary data link layer protocol developed by Cisco Systems in 1994 [1] by Keith McCloghrie and Dino Farinacci. It is used to share information about other directly connected Cisco equipment, such as the operating system version and IP address. CDP can also be used for On-Demand Routing, which is a ...

  6. 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.

  7. Link Layer Discovery Protocol - Wikipedia

    en.wikipedia.org/wiki/Link_Layer_Discovery_Protocol

    t. e. The Link Layer Discovery Protocol ( LLDP) is a vendor-neutral link layer protocol used by network devices for advertising their identity, capabilities, and neighbors on a local area network based on IEEE 802 technology, principally wired Ethernet. [1] The protocol is formally referred to by the IEEE as Station and Media Access Control ...

  8. Network Access Identifier - Wikipedia

    en.wikipedia.org/wiki/Network_Access_Identifier

    The Network Access Identifier (NAI) is the user identity submitted by the client during network access authentication. It is used mainly for two purposes: The NAI is used when roaming, to identify the user. To assist in the routing of the authentication request to the user's authentication server.

  9. Open Shortest Path First - Wikipedia

    en.wikipedia.org/wiki/Open_Shortest_Path_First

    Open Shortest Path First ( OSPF) is a routing protocol for Internet Protocol (IP) networks. It uses a link state routing (LSR) algorithm and falls into the group of interior gateway protocols (IGPs), operating within a single autonomous system (AS). OSPF gathers link state information from available routers and constructs a topology map of the ...