I have a an ASP.NET MVC application that will need to access file resources on another machine, so I have shared the relevant directory and given a fresh domain user access to it. My question is: How do I get my ASP.NET MVC app to take on this new user's identity? Do I have to set this up separately when debugging and when deployed?
Thanks!
<identity impersonate="true"
userName="domain\user"
password="password" />
in your web.config should work. The other option (not recommended) is running your application pool as a user with the proper credentials.
MVC Still uses ASP.NET authentication so you should just need to use:
<identity impersonate="true"/>
In the web.config.
Are you running your MVC application within IIS? If so, set this user as the application pool identity. If not, you can use impersonation from within the web.config
http://msdn.microsoft.com/en-us/library/xh507fc5(v=vs.100).aspx
Related
I developed a webpage on IIS that controls PC volume (using the library - CSCore.CoreAudioAPI ).
I need that the user will be logged in as the current user in the machine.
I tried to configure the web.config file to allow Impersonated Authentication, but still having troubles.
<system.web>
<identity impersonate="true"
userName="Domain\username"
password="XXXX" />
</system.web>
Thank you for your help.
You need to also enable Windows Authentication in order for this to work. Otherwise there's no mechanism to capture the user name.
However, I think the better approach is to create a custom application pool for your application and explicitly set the impersonation (Advanced Settings) to the user you want to set it to. Since the application pool hosts your application (ie. it's the launching EXE) your application then runs under that account and assuming it has full rights on the machine it should be able to access the hardware to control the volume.
ASP.NET Impersonation is a legacy feature that was meant to be used with IIS 6 and older when IIS didn't have proper application isolation. With later versions Application Pools took over the hosting of applications and the user account impersonation with it.
We have to manipulate the iis in our application,and we meet the Access denied error.
Then we add this to the web.config:
<identity userName="username" password="pass" impersonate="true"/>
It works,we can manipulate the iis(create virtual application and etc..).
However we have to access the shared folders in the application too,after add the above line,we can only access the shared folders on the machine which server our application.
If I remove the line from the web.config,we can access the shared folders from other servers.
So it seems that we can not manipulate the iis and access the shared folders at the same time.
How to fix it?
Give access to shared folders to the user that you have specified in the identity line in web.config because your web application is using those credentials to access the shared folders and it will only be possible if user specified there has access.
Or you can switch to windows authentication see How To: Use Windows Authentication in ASP.NET 2.0
There is another alternative to achieve the same.
Go to iis and set your application pool identity to user which has permissions to folder.
hope it will resolve your issue.
I'm building an intranet web site (asp.net 3.5) which has windows authentication. Two questions:
When the code behind makes a trusted connection to the SQL server, will it connect with app pool credentials or current page user credentials?
Right now, with a blank page, when the internal user (logged in to the domain) tries to hit the page they get challenged with windows login screen, and their credentials don't work.
Is there anything else I need to setup in web.config or IIS for the windows authentication to work, other than adding <authentication mode="Windows"/>?
You can configure the Windows identity of your ASP.NET application as the Windows identity supplied by IIS by enabling impersonation. That is, you instruct your ASP.NET application to impersonate the identity supplied by IIS for all tasks that the Windows operating system authenticates, including file and network access.
To enable impersonation for your Web application, in the application's Web.config file set the impersonate attribute of the identity element to true, as shown in the following code example.
<system.web>
<authentication mode="Windows"/>
<identity impersonate="true"/>
</system.web>
Source
You don't want to use imporsonate as suggested by kd7. Because then you will need to give your users rights on the database. Might be okay for SELECT operations, but I don't think your DBAs will go along if you also need to UDATE/DELETE operations. already addressed by kd7.
When you enable "Windows" authentication, you need to not only configure your application to use it, you also need to configure IIS as well.
You also need to make sure that your AppPool user has proper permissions on the File System for your site.
Depending on IIS version, the procedure for enabling windows authentication is different. You can google it.
This is a follow on to a previous post about being unable to impersonate a currently logged in Windows user. There were many good suggestions, but the previous thread was getting messy, so I am resetting with this post. Hopefully with the current state documented below it will be obvious what the issue is. This is a well worn path, so I have to believe all I am missing is a little configuration step.
PROBLEM: I need to have ASP.NET impersonate the currently logged in user. When I run under IIS 7.5, it doesn't work. IIS Express works fine, but I believe that is because the debugging session is running under my user id.
I am using Environment.Username to determine who this user is. There was a suggestion that this property always returns the logged in user name, but from my testing it returns the impersonated user from IIS.
For example, if my web.config has…
<identity impersonate="true" />
When I run under IIS 7.5 with that setting, Environment.Username returns IUSR. I believe this is the IIS anonymous user account.
If I change web.config to…
<identity impersonate="true" userName="domain\jlivermore" password="mypassword" />
… then Environment.Username returns jlivemore. However, I need it to return jlivermore without me explicitly setting it in web.config.
Here are my IIS settings…
.NET Authorization Rules
Authentication
One question, if I disable Anonymous Authentication, then I am prompted to login to the site. I thought if you were logged in with an Active Directory account on a domain then this challenge wouldn't appear? Even if I enter my username/password into this prompt, I still don't get the impersonation to work.
Basic Settings
I'm not sure if you've found an answer, but if anyone is having problems with it you will need the following in your web.config file
<authentication mode="Windows"/>
<identity impersonate="true"/>
And in IIS you will need Asp.net Impersonation enabled as well as Windows Authentication enabled, the others should be disabled. And in Windows Authentication, go to Advanced Settings and UNCHECK the Enable Kernel-mode authentication. That should do it. Your site should now be set for Local Intranet apps and using any of the following will work
System.Security.Principal.WindowsIdentity.GetCurrent().Username()
HttpContext.Current.User.Identity.Name
System.Threading.Thread.CurrentPrincipal.Identity.Name
But using Environment.Username will only return the server name, hopefully this helps anyone struggling with this
I had a similar problem as you describe. The basic crux of the matter is that there is a difference between impersonation and delegation. My simple understanding of this is that impersonation will work when the client and server are on the same machine. If however, the client is on a different machine, you need delegation.
MSDN Reference
What is the difference between impersonation and delegation?
Impersonation flows the original
caller's identity to back-end
resources on the same computer.
Delegation flows the original caller's
identity to back-end resources on
computers other than the computer
running the service.
Related SO questions
Impersonation in ASP.NET MVC
Starting a console application from asp.net using authenticated user credentials
Have you tried using
HttpContext.Current.User.Identity.Name ?
I'm trying to enable passthrough or impersonation authentication inside an ASP.NET website that uses the TFS2010 API.
I've got this working correctly with Cassini, however with IIS 7.5 (Windows 7) something is going wrong.
I found this blog post on the subject, and tried the following:
private static void Test()
{
TfsTeamProjectCollection baseUserTpcConnection =
new TfsTeamProjectCollection(new Uri(Settings.TfsServer));
// Fails as 'baseUserTpcConnection' isn't authenticated
IIdentityManagementService ims =
baseUserTpcConnection.GetService<IIdentityManagementService>();
// Read out the identity of the user we want to impersonate
TeamFoundationIdentity identity = ims.ReadIdentity(
IdentitySearchFactor.AccountName,
HttpContext.Current.User.Identity.Name,
MembershipQuery.None,
ReadIdentityOptions.None);
TfsTeamProjectCollection impersonatedTpcConnection = new
TfsTeamProjectCollection(new Uri(Settings.TfsServer),
identity.Descriptor);
}
When I use Cassini nothing is needed besides
collection = new TfsTeamProjectCollection(new Uri(server));
I have enabled the web.config settings (and have the Windows Auth module installed):
<authentication mode="Windows"/>
<identity impersonate="true" />
Is there something obvious that I've missed out?
Solution 1
This is the delegation method. As Paul points out it's a single setting in your active directory:
Find the IIS server in the computers node of the "Active Directory users and Computers" console.
Click on the delegation tab, and select the second option:
Create a 'Cache' directory in your IIS root folder
Add the following to your web.config:
<appSettings>
<add key="WorkItemTrackingCacheRoot" value="C:\path-to-web-root\Cache\"/>
</appSettings>
Make sure your web.config contains:
<system.web>
<identity impersonate="true" />
</system.web>
Turn on Windows authentication and impersatonation and disable everything else in IIS authentication:
Solution 2
Another solution to avoid the steps above is to simply run your application under the TFS:8080 site, as a new application. The hop issue is then removed as you are running in the same context as the web service that your app is calling.
Create a new app pool, use network identity.
Make sure your application has anonymous authentication turned off
Make sure it has windows authentication turned on.
Add <identity impersonate="true" /> to the web config.
I wonder if you're hitting the old Double-Hop issue here?