IIS7 folder permissions for web application

Question

I am using windows authentication without impersonation on my company's intranet website with IIS7.

Under IIS7, what account is used to access the folder which contains my web app using these settings?

Would it be IIS_IUSRS? Or NETWORK SERVICE? Or another I don't know about?

Answer 1

In IIS 7 (not IIS 7.5), sites access files and folders based on the account set on the application pool for the site. By default, in IIS7, this account is NETWORK SERVICE.

Specify an Identity for an Application Pool (IIS 7)

In IIS 7.5 (Windows 2008 R2 and Windows 7), the application pools run under the ApplicationPoolIdentity which is created when the application pool starts. If you want to set ACLS for this account, you need to choose IIS AppPool\ApplicationPoolName instead of NT Authority\Network Service.

Answer 2

http://forums.iis.net/t/1187650.aspx has the answer. Setting the iis authentication to appliction pool identity will resolve this.

In IIS Authentication, Anonymous Authentication was set to "Specific User". When I changed it to Application Pool, I can access the site.

To set, click on your website in IIS and double-click "Authentication". Right-click on "Anonymous Authentication" and click "Edit..." option. Switch from "Specific User" to "Application pool identity". Now you should be able to set file and folder permissions using the IIS AppPool\{Your App Pool Name}.

Answer 3

Running IIS 7.5, I had luck adding permissions for the local computer user IUSR. The app pool user didn't work.

Answer 4

If it's any help to anyone, give permission to "IIS_IUSRS" group.

Note that if you can't find "IIS_IUSRS", try prepending it with your server's name, like "MySexyServer\IIS_IUSRS".

Answer 5

1. Working on IIS 7.5 and Windows 7 i couldnt give permission APPPOOL/Mypool
2. IUSR and IIS_IUSRS permissions not working for me

3. I got to problem this way:

   -Created console application with C#
   -This appliaction using createeventsource like this

   if(!System.Diagnostics.EventLog.SourceExists(sourceName)) System.Diagnostics.EventLog.CreateEventSource(sourceName,logName);

   -Build solution and get .exe file

   -Run exe as administator.This create log file.

NOTE: Dont remember Event viewer must be refresh for see the log.

I hope this solution helps someone :)

Answer 6

Worked for me in 30 seconds, short and sweet:

1. In IIS Manager (run inetmgr)
2. Go to ApplicationPool -> Advanced Settings
3. Set ApplicationPoolIdentity to NetworkService
4. Go to the file, right click properties, go to security, click edit, click add, enter Network Service (with space, then click 'check names'), and give full control (or just whatever permissions you need)