IIS 7 and Above
IIS 7.5 IUSR/IIS_IUSRS
Last post Oct 07, 2014 08:50 AM by oskar.berggren
Jul 15, 2010 01:00 PM|Sho_lobo|LINK
Jul 17, 2010 11:41 AM|steve schofield|LINK
The IUSR is a legacy account for anonymous access. Personally, I would change the user account in the anonymous authentication module to inherit from the application pool, then you are administering one account. Right click on anonymous authentication
module in IIS Manager, click edit and you'll see the setting.
Windows Server MVP - IIS
Log archival solution
Install, Configure, Forget
Jul 19, 2010 05:39 PM|Sho_lobo|LINK
Jul 19, 2010 11:39 PM|Leo Tang - MSFT|LINK
Hope this helps:
Understanding Built-In User and Group Accounts in IIS 7
Jul 22, 2010 04:00 PM|Sho_lobo|LINK
Jan 12, 2014 11:14 PM|Jake See|LINK
That is because IUSR is not a user inside the IIS_IURS group.
Oct 07, 2014 08:50 AM|oskar.berggren|LINK
I added the IUSR account to the IIS_IUSRS group, which I would prefer to use, and added that group to the permissions of Inetpub directories. But, that doesn't work, same Unauthorized error.
When a user is added to a group, the permissions of that group only takes effect for new sessions. Processes already running under that account won't see the new group membership. They must be terminated and restarted in a new login session. For this case
I suspect you would need to restart the server, or at least the IIS service.
Might this have been the issue?