ASP.Net Interview Questions and Answers
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What is impersonation in ASP.Net?



Posted By: Avi Date: 25 October 2009 06:08:34 AM
 Answer:

Impersonation is when ASP.Net executes code in the context of an authenticated and authorized client. By default, ASP.Net does not use impersonation and instead executes all code using the same user account as the ASP.NET process, which is typically the ASPNET account.

Using impersonation, ASP.NET applications can optionally execute the processing thread using the identity of the client on whose behalf they are operating. You usually use impersonation for resource access control.

If you enable impersonation, ASP.Net can either impersonate the authenticated identity received from IIS or one specified in the application's Web.config file. Following tags are used in web.config file to enable impersonation:

1) To impersonate using either an authenticated user or the anonymous Internet user account (IUSR_machinename):

<identity impersonate="true" />

2) To impersonate using a specific user account:

<identity impersonate="true" userName="domain\user" password="password" />


Posted By: eTechPlanet

Date: 25 October 2009 06:08:34 AM
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