Thursday, November 29, 2012

What is Extend web application in SharePoint


If you want to expose the same content in a Web application to different types of users by using additional URLs or authentication methods, you can extend an existing Web application into a new zone. When you extend the Web application into a new zone, you create a separate Internet Information Services (IIS) Web site to serve the same content, but with a unique URL and authentication type.
An extended Web application can use up to five network zones (Default, Intranet, Internet, Custom, and Extranet). For example, if you want to extend a Web application so that customers can access content from the Internet, you select the Internet zone and choose to allow anonymous access and grant anonymous users read-only permissions. Customers can then access the same Web application as internal users, but through different URLs and authentication settings. For more information, see Logical architecture components (SharePoint Server 2010), Configure anonymous access for a claims-based Web application (SharePoint Server 2010), and Plan authentication methods (SharePoint Server 2010).

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