An intranet is a computer network for sharing information, collaboration tools, operational systems, and other computing services within an organization, usually to the exclusion of access by outsiders. The term is used in contrast to public networks, such as the Internet, but uses most of the same technology based on the Internet Protocol Suite.[1]

A company-wide intranet can constitute an important focal point of internal communication and collaboration, and provide a single starting point to access internal and external resources. In its simplest form, an intranet is established with the technologies for local area networks (LANs) and wide area networks (WANs).[2][3][4] Many modern intranets have search engines, user profiles, blogs, mobile apps with notifications, and events planning within their infrastructure.

An intranet is sometimes contrasted to an extranet. While an intranet is generally restricted to employees of the organization, extranets may also be accessed by customers, suppliers, or other approved parties.[5] Extranets extend a private network onto the Internet with special provisions for authentication, authorization and accounting (AAA protocol).

  1. ^ "The Difference Between Internet, Intranet, and Extranet", October 19, 1998, Steven L. Telleen,
  2. ^ Luk, A. (9 May 1991). "Fujikama goes Unix". IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, 1991. Institute of Electrical and Electronics Engineers. 2: 783–786. doi:10.1109/PACRIM.1991.160857. ISBN 978-0879426385. The internet and intranet Unix network provide a functioning email facility around the world.
  3. ^ Richardson, C.; Schoultz, M. (14 October 1991). "Formation flight system design concept". Digital Avionics Systems Conference, 1991. Proceedings., IEEE/AIAA 10th: 18–25. doi:10.1109/DASC.1991.177138. The data transfer task is broken up into two network solutions: an intranet used for transferring data among formation members at high update rates to support close formation flight and an internet used for transferring data among the separate formations at lower update rates.
  4. ^ RFC 4364
  5. ^ Callaghan, J (2002). Inside Intranets & Extranets: Knowledge Management AND the Struggle for Power. Palgrave Macmillan. ISBN 0-333-98743-8.

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