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3.3.1.3 Extranet
An extranet is another type of
logical network, which allows a business to connect with suppliers,
vendors, customers, stockholders or others related to its business.
An extranet is usually run over the Internet, often using a VPN
for security. Alternatively, some companies limit their extranet functionality
to data exchange via SSL-protected web pages that can only be accessed
by authorized parties, and do not implement a VPN. The extranet’s
primary components are normally situated within the company’s internal
network, allowing limited access to some corporate resources to those
outside the organization on a need-to-know basis, and allowing corporate
staff to access limited resources on other organizations’ networks
as needed.
If you are employing a VPN for your
intranet, you may wish to employ a second VPN for your extranet, to
best separate this “restricted public access” traffic from
your completely internal traffic.
 Extranet
An extranet is an extension of some parts of a company’s network to its business partners, such as suppliers, vendors, customers and stockholders, on a need-to-know basis. Access to the extranet is normally provided over the Internet, using a VPN or SSL-based web pages.
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CertiGuide for Security+ (http://www.CertiGuide.com/secplus/) on CertiGuide.com
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