An Extranet is part of a company's internal system (called an intranet) that is accessed by other people or businesses.
Usually this is used in a business-to-business (B2B) situation, where suppliers or partner/affiliate companies can share information, forecasts, or even order products or services.
An extranet is a private network that uses internet technology and the public telecommunication system to securely share information. An extranet can be viewed as part of a company's intranet that is extended to users outside the company.
An extranet requires security and privacy. These can include firewall server management, the issuance and use of digital certificates or similar means of user authentication, encryption of messages, and the use of virtual private networks (VPNs) that tunnel through the public network.
Is a network that is limited in scope to a single organization or entity but which also has limited connections to to the networks of one or more other than usually but not neccesarily trusted entities or organizations
Extranet is a type of network that allows outsiders limited access to a company's internal, or intranet. Businesses and educational systems use this, to allow secure access to outsiders a portion of their network.
An extranet is implemented as a Virtual Private Network (VPN) because it uses the internet to connect to corporate organizations and there is always a threat to information security. VPN offers a secure network in public infrastructure (Internet)
Intranet, if the VPN is configured properly. The VPN should create a tunnel that will only allow the computer to use the services of the host enterprise Intranet.
Extranet is wan
An internet is a public network whereas an intranet is a private network only available to trusted clients or employees. Intranets are commonly available outside the company via a VPN (which makes them an extranet).
Usually people like: partners, vendors, and suppliers of a company that has extranet.
intranet is a local network in a certain building, campus or home. Extranet is everything else.
The Internet is conceptualized as allowing any user to connect to any other user, even if they've never had any communication before and never will again after the connection is terminated. An extranet, in contrast, is usually used by several organizations to share data with each other in a trusted relationship; this usually involves IP tunneling to keep their information relatively secure while in transit over the public Internet. An extranet can also be used by outside users to participate in an intranet as if they were actually at the location of the intranet (which is a private network used within an organization); this is conceptually similar to VPN connections.
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a inernet system
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Internet : the global communication access via web. Extranet : Share the content by groups through cross enterprise boundary.