ASP.NET Access to path '\\xxxx' is denied

Question

I know this has come up in other questions, but none seem as simple:

I have a UNC share on another machine, with security set to Full Control for Everyone. If I log into my web server, I can access this share.

However when I try to access it using Directory.GetFiles(path) in the ASP.NET code, it returns an Access to the path \\xxxx is denied. error.

Also oddly, when I run the same website from my local visual studio web server, but pointing at the same path, the directory can be accessed fine.

What am i missing here?!

maybe there is an issue with the IIS user, or a security configuration with the IIS — Carlos487, Jul 09 '14 at 16:31
Maybe a security configuration within the IIS or a firewall issue — Carlos487, Jul 09 '14 at 16:32
Maybe not the network firewall but the internal application firewall from windows server, their tend to be more secured and protected. And you are accesing the share with the windows user but sadly the code will try to access with the "IIS User" and the IIS application that might be blocked by the firewall — Carlos487, Jul 09 '14 at 16:41
What is the identity used by the appdomain of your website? Are these servers domain joined? Are you using a domain account? — rene, Jul 09 '14 at 21:41
Yes to Domain joined, and the IIS Application pool uses a domain account that has full control over the directory. How do I find which appdomain? — Paul Grimshaw, Jul 10 '14 at 08:30

score 0 · Answer 1 · answered Jul 09 '14 at 19:40

0

Add IUSR, IIS_IUSRS as suggested by Carlos487 and Network Service as well with full control on the directory that you are trying to access with your application. Hope this helps.

answered Jul 09 '14 at 19:40

Dare Devs

156
1
4
13

"Everyone" includes the accounts you've listed. Anyhow, tried explicitly adding and didn't help... – Paul Grimshaw Jul 09 '14 at 21:01
Check the filesystem permissions on the folder that's being shared out. Granting `Full Control` to `Everyone` on the **share** is not sufficient by itself - the filesystem ACLs on the folder being shared must also allow access to the web server user. – nobody Jul 09 '14 at 21:34

ASP.NET Access to path '\\xxxx' is denied

1 Answers1