Form Based Authentication (FBA) provides your own authentication method using a web form. More and more companies are using FBA as a way of extending a site for non-Active Directory (AD) users.
SharePoint standard installation uses as default AD to query the Domain Controller and to check user credentials through Windows Authentication. FBA uses a custom database created separate from AD to store user credentials. Authentication using FBA is executed by a SQL DB query. When FBA is used to extend SharePoint sites, external users (non AD users) have access to SharePoint.
Why would you allow access to external users?
A practical reason for extending a SharePoint site through FBA is collaboration on documents with your clients or vendors.
FBA Limitations
Users who authenticate with FBA do not have the same level of functionality available as users who authenticate with a Windows Authentication method. Basically the client integration features would not work:
– Links that start client applications are not visible
– Documents are opened directly in the browser with no client applications support
– Users cannot edit documents on the site using the client applications. However, users can download and edit the document locally, and then upload the document back to the serve
SharePoint standard installation uses as default AD to query the Domain Controller and to check user credentials through Windows Authentication. FBA uses a custom database created separate from AD to store user credentials. Authentication using FBA is executed by a SQL DB query. When FBA is used to extend SharePoint sites, external users (non AD users) have access to SharePoint.
Why would you allow access to external users?
A practical reason for extending a SharePoint site through FBA is collaboration on documents with your clients or vendors.
FBA Limitations
Users who authenticate with FBA do not have the same level of functionality available as users who authenticate with a Windows Authentication method. Basically the client integration features would not work:
– Links that start client applications are not visible
– Documents are opened directly in the browser with no client applications support
– Users cannot edit documents on the site using the client applications. However, users can download and edit the document locally, and then upload the document back to the serve
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