Hello,
I have a DNN 06.02.05 (24) hosts using Active Directory authentication, one on IIS 6 and one on IIS 7.5, both working good with mixed authentication (AD autologin and possibility to logoff and login with a DNN user, e.g. host).

I am now testing impersonation: I see that if I include <identity impersonate="true" /> I actually can see my domain user as the current windowsidentity (System.Security.Principal.WindowsIdentity.GetCurrent().Name). And I can test filesystem access with code like:

Try
                Dim ent() As String = IO.Directory.GetFileSystemEntries(path)
                DnnLog.Debug("ent=" & ent.GetUpperBound(0))

            Catch ex As Exception
                DnnLog.Error(ex.Message)
            End Try

Such function should just tell me if the folder exists, and if the currently logged-on user has access to it.
The problem is when I test access to an UNC share as the path (e.g. \\server\share\folder), I always get an access denied exception, but I do have access to such a share!

Is this a problem with UNC, with impersonation or both? Is there another way to perform such a check?

Thank you for any help,

al.

Mike,
thanks for your answer.
I figured out I cannot turn impersonation on, it gives me issues with my mixed authentication scenario (user cannot logout from site, and don't know if this can be solved).
So I probably need to impersonate the user somehow from code, when I perform an access check versus the file shares. BTW you're right about permissions and network access, I have local and remote shares and ports are to be open, but network is not a problem for me - I do have access to all of the shares, I can open and navigate all of them.

I'll try impersonation, and also investigate other API calls to check for access - have seen reports of many people saying DirectoryInfo.Exists() alwasys returns false when checking UNC paths.

Thanks for your help!
Regards,
al.