IUSR vs. Application Pool credentials

Posted by jlew on Server Fault See other posts from Server Fault or by jlew
Published on 2010-02-25T18:12:45Z Indexed on 2010/04/22 1:03 UTC
Read the original article Hit count: 450

Filed under:

iis7

|

authentication

|

ASP.NET

|

privileges

I have a IIS7/ASP.NET application running with the following configuration:

Anonymous authentication (IUSR).
Application Pool running as a domain account

If IUSR is denied the "logon locally", then it appears that ASPX pages will still render their HTML, but static content such as images will not be delivered. I'm wondering what the technical reason is for this? If IUSR is "broken", why will a request to an ASPX page be passed down the pipeline and executed, but IIS will refuse to serve an image in the same directory?

© Server Fault or respective owner

Related posts about iis7

Configuring IIS7 404 page when using IIS7 urlrewrite module

as seen on Pro Webmasters - Search for 'Pro Webmasters'
I've got custom errors to work for .aspx page like: www.domain.com/whateverdfdgdfg.aspx But, when no .aspx url is requested, (like http://www.domain.com/hfdkfdh4545) it results in an error: HTTP Error 404.0 - Not Found The resource you are looking for has been removed, had its name changed… >>> More
How to create a Subdomain in IIS7?

as seen on Server Fault - Search for 'Server Fault'
In IIS7 I have a site: http://www.mydomain.com/mysite How can I get the same site to appear as: http://mysite.mydomain.com ? I already have the DNS set up and can ping it, I just do not know how to configure it in IIS7. >>> More
How can I control which IP address IIS7 uses?

as seen on Server Fault - Search for 'Server Fault'
In Win2k3 I used httpcfg to tell IIS to listen to specific IP addresses on the server. I want to run Apache with VisualSVN Server on port 80 on another IP address but IIS7 binds to all ports by default. What utility for IIS7 controls the IIS7 bindings? Update: I found the answer. There is a utility… >>> More
WCF service hosted in IIS7 with administrator rights?

as seen on Server Fault - Search for 'Server Fault'
Hello, How do I grant administrator rights to a running WCF service hosted in IIS7? The problem is, my code works fine in a test console application runned as an administrator, but the same code used from WCF service in IIS7 fails. When I run the same console test application without admin rights… >>> More
authentication problem on windows vista (cookie is getting written but httpcontext.current.user is n

as seen on Stack Overflow - Search for 'Stack Overflow'
authentication problem on windows vista (iis7) (cookie is getting written but httpcontext.current.user is null) >>> More

Related posts about authentication

Configuring Fed Authentication Methods in OIF / IdP

as seen on Oracle Blogs - Search for 'Oracle Blogs'
In this article, I will provide examples on how to configure OIF/IdP to map OAM Authentication Schemes to Federation Authentication Methods, based on the concepts introduced in my previous entry. I will show examples for the three protocols supported by OIF: SAML 2.0 SSO SAML… >>> More
windows authentication vs sql server authentication for asp.net forms authentication site

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a database and a site having forms authentication. It is working fine with VS2008. This time, I am using "Trusted_connection =True". But when it is opened from outside or directly from browser then I am getting error "Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'." I know this is due… >>> More
Disable authentication on subfolder(s) of an ASP.NET app using windows authentication

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, Is it possible to disable windows authentication on one or more subfolders of an ASP.net application using windows authentication? >>> More
AutoCompleteExtender - authentication failure (forms authentication)

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm using the AutoCompleteExtender from the AJAX control toolkit on my aspx page - I have it wired up to a WCF service that is returning a string array and everything works happily. If I change my service definition to include a demand for the caller to be authenticated, like so: <OperationContract()… >>> More
Ruby on Rails , functionalities having twitter authentication and email authentication (autlogic and

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi Experts, I would like to ask your guidance on how to authenticate using email add/ the basic log-in while having also a twitter log-in, twitter authentication works fine but if having an alternative log-in like using basic sign-up and email log-in part wont work.... any ideas please...? >>> More