Explain extranet commerce.

 The exact definition of an extranet is still evolving, but the most universally accepted one is a network that links business partners to one another over the internet by tying together their intranets. The term ‘extranet’ comes from ‘extended intranet’. The main goal of extranet is to foster collaboration between organizations.

An extranet uses the same basic infrastructure components including services, TCP/IP1 , e- mail, and web browsers as the internet. It makes communication over the internet secured. It links the company’s intranet with suppliers, customers, and trading partners. Extranet may be used, for example, to allow inventory databases to be searched by outsiders or to transmit information on the status of an order. An extranet enables people, who are located outside a company, to work together with the company’s internally located employees.

An extranet, like an intranet, is typically protected by a firewall and is closed to the public. It is open to selected suppliers, customers, and other business partners, who access it on a private wide area network over the internet or on a Virtual Private Network (VPN), which increases security and functionality.

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