What is Intranet & Extranet?


A restricted-access network that works like the Internet, but isn’t on it. Usually owned and managed by a corporation, an intranet enables a company to share its resources with its employees without confidential information being made available to everyone with Internet access. A corporate network that uses an IP network structure, together with Web servers and browsers. Intranets are generally used to provide information such as benefits plans, etc. to corporate employees in an easily accessible fashion.

An intranet is a private network. There are many intranets scattered all over the world. Some are connected to the Internet via gateways. An intranet is a private computer network that uses Internet protocols and network connectivity to securely share part of an organization’s information or operations with its employees. Sometimes the term refers only to the most visible service, the internal website.


An extranet is a Web site for selected users, rather than for the general public. An extranet uses the Internet as its transmission system but requires a password to gain entrance. An extranet is a web site geared toward use specifically by a company’s employees or clients. It will often contain company or project-specific information that allows the parties involved to coordinate more efficiently.

A type of Internet Web site that is a closed community protected by a password and/or firewalls. It is typically provided by businesses for suppliers and key customers.

A network which uses Internet technology and which allows organisations to communicate with selected others involved in its business. For example, a factory might use an extranet to communicate with its suppliers and customers.


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