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The database dbname requested by the login cannot be opened under Windows. Login failed. User ' IIS apppool/defaultapppool ' login failed. The Solution __ Database

Source: Internet
Author: User
Tags sql server express
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The problem is the application connection pool. Some friends on the internet say it is a problem with the permissions of the Temp folder. There may be other situations that arise.
The problem is that the database is SQL Server Express, that the program was successfully debugged in VS, but that a problem similar to the following is generated in IIS
------------------------------------------------
Unable to open the requested database "dbname" for login. Login failed.
User ' IIS apppool/defaultapppool ' login failed.
------------------------------------------------
Solution
1, first look at your site is using which application pool

2, set the application pool options

You can solve the problem by choosing LocalSystem or NetworkService here.

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