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HomeHomeDNN Open Source...DNN Open Source...Provider and Extension ForumsProvider and Extension ForumsAuthenticationAuthenticationActive directory authentication in a non domain web server on IIS 7Active directory authentication in a non domain web server on IIS 7
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7/12/2011 6:32 AM
 
Fab Lst


Joined: 10/30/2007
Posts: 152

Hello,

I have some issue using Active Directory Provider in a DNN 5 installation in which the web server is not a part of active directory domain (it is in DMZ). In have read the documentation, so I have done these steps:

 1-Configured the active directory provider in DNN admin menu -> Extenisions

In this case, when I update the settings, I got this error:

Error: is currently unavailable.
DotNetNuke.Services.Exceptions.ModuleLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Authentication.ActiveDirectory.ADSI.Utilities.AddADSIPath(String Path, Path ADSIPath) at DotNetNuke.Authentication.ActiveDirectory.ADSI.Utilities.GetRootEntry(Path ADSIPath) at DotNetNuke.Authentication.ActiveDirectory.ADSI.ADSIProvider.GetNetworkStatus() at DotNetNuke.Authentication.ActiveDirectory.Settings.UpdateSettings() --- End of inner exception stack trace ---

 

2-Modified web.config adding <identity impersonate=”true” userName=”domain\user” password=”password” /> .

In this case I have also created a local user (local in the web server!) with same username and same password of the domain user stored in active directory. I have also granted full access to the dnn5 directory and added it into IIS_USRS group. OK. Repeating step 1 I got the same error.

 

3-Set Integrated authentication of WindowsSignin.aspx in IIS7:

I cannot set this option in IIS7 to this file, I can only set it to the directory in which it is stored (desktopmodules\Authenticationservices\Activedirectory).

 

Can anyone help me?

Thanks

Eclipse79
 
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7/12/2011 10:33 AM
 
Mike Horton


Joined: 7/16/2003
Posts: 4865
The problem is that the user account you're using for impersonation doesn't have permissions to read the Active Directory. It doesn't matter if it's the same username/password as an AD user because the information is passed by Domain\Username not just by Username.

As far as your number three problem. In IIS if you switch to Content View and drill down to WindowsSignin.aspx, right-click on it, and switch back to the normal view you can set permissions on that file alone (or you can just type the path to WindowsSignin.aspx in the address box in IIS).
 
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7/12/2011 12:31 PM
 
Fab Lst


Joined: 10/30/2007
Posts: 152
Mike Horton wrote:
The problem is that the user account you're using for impersonation doesn't have permissions to read the Active Directory. It doesn't matter if it's the same username/password as an AD user because the information is passed by Domain\Username not just by Username.
no, the issue is different... I am checking at the firewall and the web server does not tries to contact domain controller. Our domain name is xxxx.local, so I have set dc=xxxx, dc=local in active directory authentication provider Root Domain option, and xxxx.local in default domain. Then, in order to convert the domain name to ip, I have added a line into "hosts" file so that xxxx.local points at the correct lan ip address of our domain controller server, but I see no entries in our firewall logs...

As far as your number three problem. In IIS if you switch to Content View and drill down to WindowsSignin.aspx, right-click on it, and switch back to the normal view you can set permissions on that file alone (or you can just type the path to WindowsSignin.aspx in the address box in IIS).

Founded! :) many thanks
 
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9/22/2011 12:29 PM
 
Mike Cundall


Joined: 8/24/2009
Posts: 5
I am also having this exact problem as I am running IIS7 and trying to get AD authentication working on a webserver that is not part of the AD domain. Is this possible as at the moment I am getting the following error on the settings page:

Error: is currently unavailable. DotNetNuke.Services.Exceptions.ModuleLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Authentication.ActiveDirectory.ADSI.Utilities.AddADSIPath(String Path, Path ADSIPath) at DotNetNuke.Authentication.ActiveDirectory.ADSI.Utilities.GetRootEntry(Path ADSIPath) at DotNetNuke.Authentication.ActiveDirectory.ADSI.ADSIProvider.GetNetworkStatus() at DotNetNuke.Authentication.ActiveDirectory.Settings.UpdateSettings() --- End of inner exception stack trace ---

I know for IIS7 I need to use impersonation, is it possible to impersonate a user on my AD domain controller if it is on a different domain?

Thanks.
 
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HomeHomeDNN Open Source...DNN Open Source...Provider and Extension ForumsProvider and Extension ForumsAuthenticationAuthenticationActive directory authentication in a non domain web server on IIS 7Active directory authentication in a non domain web server on IIS 7


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