Problems with Windows authentication

Question

User-1634117515 posted

Hello,

Im using this to show the name of the user 

 protected void Page_Load(object sender, EventArgs e)
    {
     txtNombre.Text = System.DirectoryServices.AccountManagement.UserPrincipal.Current.DisplayName;
    }

but when I published it I get the error "Unable to cast object of type 'System.DirectoryServices.AccountManagement.GroupPrincipal' to type 'System.DirectoryServices.AccountManagement.UserPrincipal'."

The server has already the windows authentification activated and the web.config is 

<authentication mode="Windows"/>

how Can I solve this?

Answer 1

User475983607 posted

The correct construct is for a web application is.

HttpContext.Current.User.Identity.Name

Answer 2

User-1634117515 posted

Thanks, but it returns a null value. and I need the full name and the users from the AD

Answer 3

User475983607 posted

markdirtyboy

Thanks, but it returns a null value. and I need the full name and the users from the AD

Usually indicates anonymous authentication is enabled in IIS.  Disable Anonymous Authentication.

Answer 4

User-1634117515 posted

I activated Windows authentication and disabled anonymous and I get this page 

HTTP Error 404.15 - Not Found
The request filtering module is configured to deny a request where the query string is too long.

Most likely causes:
Request filtering is configured on the Web server to deny the request because the query string is too long.

Things you can try:
Verify the configuration/system.webServer/security/requestFiltering/requestLimits@maxQueryString setting in the applicationhost.config or web.config file.

Detailed Error Information:
Module	   RequestFilteringModule
Notification	   BeginRequest
Handler	   ExtensionlessUrl-Integrated-4.0
Error Code	   0x00000000
Requested URL	   http://localhost:51182/Account/Login?ReturnUrl=%2FAccount%2FLogin%3FReturnUrl%3D%252FAccount%252FLogin%253FReturnUrl%253D%25252FAccount%25252FLogin%25253FReturnUrl%25253D%2525252FAccount%2525252FLogin%2525253FReturnUrl%2525253D%252525252FAccount%252525252FLogin%252525253FReturnUrl%252525253D%25252525252FAccount%25252525252FLogin%25252525253FReturnUrl%25252525253D%2525252525252FAccount%2525252525252FLogin%2525252525253FReturnUrl%2525252525253D%252525252525252FAccount%252525252525252FLogin%252525252525253FReturnUrl%252525252525253D%25252525252525252FAccount%25252525252525252FLogin%25252525252525253FReturnUrl%25252525252525253D%2525252525252525252FAccount%2525252525252525252FLogin%2525252525252525253FReturnUrl%2525252525252525253D%252525252525252525252FAccount%252525252525252525252FLogin%252525252525252525253FReturnUrl%252525252525252525253D%25252525252525252525252FAccount%25252525252525252525252FLogin%25252525252525252525253FReturnUrl%25252525252525252525253D%2525252525252525252525252FAccount%2525252525252525252525252FLogin%2525252525252525252525253FReturnUrl%2525252525252525252525253D%252525252525252525252525252FAccount%252525252525252525252525252FLogin%252525252525252525252525253FReturnUrl%252525252525252525252525253D%25252525252525252525252525252FAccount%25252525252525252525252525252FLogin%25252525252525252525252525253FReturnUrl%25252525252525252525252525253D%2525252525252525252525252525252FAccount%2525252525252525252525252525252FLogin%2525252525252525252525252525253FReturnUrl%2525252525252525252525252525253D%252525252525252525252525252525252FAccount%252525252525252525252525252525252FLogin%252525252525252525252525252525253FReturnUrl%252525252525252525252525252525253D%25252525252525252525252525252525252FAccount%25252525252525252525252525252525252FLogin%25252525252525252525252525252525253FReturnUrl%25252525252525252525252525252525253D%2525252525252525252525252525252525252FAccount%2525252525252525252525252525252525252FLogin%2525252525252525252525252525252525253FReturnUrl%2525252525252525252525252525252525253D%252525252525252525252525252525252525252FDefault
Physical Path	   J:\Intranet\Intranet\Account\Login
Logon Method	   Not yet determined
Logon User	   Not yet determined
Request Tracing Directory	   C:\Users\msuarez\Documents\IISExpress\TraceLogFiles\INTRANET

Answer 5

User475983607 posted

markdirtyboy

I activated Windows authentication and disabled anonymous and I get this page 

HTTP Error 404.15 - Not Found
The request filtering module is configured to deny a request where the query string is too long.

Most likely causes:
Request filtering is configured on the Web server to deny the request because the query string is too long.

Things you can try:
Verify the configuration/system.webServer/security/requestFiltering/requestLimits@maxQueryString setting in the applicationhost.config or web.config file.

Detailed Error Information:
Module	   RequestFilteringModule
Notification	   BeginRequest
Handler	   ExtensionlessUrl-Integrated-4.0
Error Code	   0x00000000
Requested URL	   http://localhost:51182/Account/Login?ReturnUrl=%2FAccount%2FLogin%3FReturnUrl%3D%252FAccount%252FLogin%253FReturnUrl%253D%25252FAccount%25252FLogin%25253FReturnUrl%25253D%2525252FAccount%2525252FLogin%2525253FReturnUrl%2525253D%252525252FAccount%252525252FLogin%252525253FReturnUrl%252525253D%25252525252FAccount%25252525252FLogin%25252525253FReturnUrl%25252525253D%2525252525252FAccount%2525252525252FLogin%2525252525253FReturnUrl%2525252525253D%252525252525252FAccount%252525252525252FLogin%252525252525253FReturnUrl%252525252525253D%25252525252525252FAccount%25252525252525252FLogin%25252525252525253FReturnUrl%25252525252525253D%2525252525252525252FAccount%2525252525252525252FLogin%2525252525252525253FReturnUrl%2525252525252525253D%252525252525252525252FAccount%252525252525252525252FLogin%252525252525252525253FReturnUrl%252525252525252525253D%25252525252525252525252FAccount%25252525252525252525252FLogin%25252525252525252525253FReturnUrl%25252525252525252525253D%2525252525252525252525252FAccount%2525252525252525252525252FLogin%2525252525252525252525253FReturnUrl%2525252525252525252525253D%252525252525252525252525252FAccount%252525252525252525252525252FLogin%252525252525252525252525253FReturnUrl%252525252525252525252525253D%25252525252525252525252525252FAccount%25252525252525252525252525252FLogin%25252525252525252525252525253FReturnUrl%25252525252525252525252525253D%2525252525252525252525252525252FAccount%2525252525252525252525252525252FLogin%2525252525252525252525252525253FReturnUrl%2525252525252525252525252525253D%252525252525252525252525252525252FAccount%252525252525252525252525252525252FLogin%252525252525252525252525252525253FReturnUrl%252525252525252525252525252525253D%25252525252525252525252525252525252FAccount%25252525252525252525252525252525252FLogin%25252525252525252525252525252525253FReturnUrl%25252525252525252525252525252525253D%2525252525252525252525252525252525252FAccount%2525252525252525252525252525252525252FLogin%2525252525252525252525252525252525253FReturnUrl%2525252525252525252525252525252525253D%252525252525252525252525252525252525252FDefault
Physical Path	   J:\Intranet\Intranet\Account\Login
Logon Method	   Not yet determined
Logon User	   Not yet determined
Request Tracing Directory	   C:\Users\msuarez\Documents\IISExpress\TraceLogFiles\INTRANET

Usually caused by a redirect to a login page configured in the web.config.  Windows authentication does not require a login page.  IIS (and the browser) handle the user authentication behind the scenes. 

What are you trying to do exactly? 

Answer 6

User-1634117515 posted

I don´t have any login Page, how Can I see this? 

and I´m developing an Intranet so the page must get the name of the user for their requirements 

Answer 7

User475983607 posted

markdirtyboy

I don´t have any login Page, how Can I see this? 

and I´m developing an Intranet so the page must get the name of the user for their requirements 

Look in the web.config and/or make sure Forms Authentication is disabled in IIS.

If that does not work try adding the following to the web.config.

<system.webServer>
 <modules runAllManagedModulesForAllRequests="true>
    <remove name="FormsAuthentication />
 </modules>
</system.webServer>

Answer 8

User-1634117515 posted

Here is my Web.config

<configuration>
  <configSections>
    <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false"/>
  </configSections>
  <system.web>
    <globalization fileEncoding="utf-8" requestEncoding="utf-8" responseEncoding="utf-8" culture="es-ES" uiCulture="de-DE"/>
    <customErrors mode="Off" defaultRedirect="Default.aspx"/>
    <authentication mode="Windows"/>
    <authorization>
      <allow users="*"/>
    </authorization>
    <identity impersonate="false"/>
    <compilation debug="true" targetFramework="4.7">
      <assemblies>
        <add assembly="Microsoft.Office.Interop.Word, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71E9BCE111E9429C"/>
        <add assembly="System.DirectoryServices.AccountManagement, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
        <add assembly="System.DirectoryServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
      </assemblies>
    </compilation>
    <httpRuntime targetFramework="4.6"/>
    <pages>
      <namespaces>
        <add namespace="System.Web.Optimization"/>
        <add namespace="Microsoft.AspNet.Identity"/>
      </namespaces>
      <controls>
        <add assembly="Microsoft.AspNet.Web.Optimization.WebForms" namespace="Microsoft.AspNet.Web.Optimization.WebForms" tagPrefix="webopt"/>
      </controls>
    </pages>
    <sessionState mode="InProc" customProvider="DefaultSessionProvider">
      <providers>
        <add name="DefaultSessionProvider" type="System.Web.Providers.DefaultSessionStateProvider, System.Web.Providers, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection"/>
      </providers>
    </sessionState>
  </system.web>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true">
      <remove name="FormsAuthentication"/>
    </modules>
  </system.webServer>
</configuration>

and I still get that :c

Answer 9

User475983607 posted

It looks like you've configured OWIN Identity?  You'll need to turn off the Cookie Authentication if you wish to use Windows Authentication.

On a side this, Word Interop...

<add assembly="Microsoft.Office.Interop.Word, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71E9BCE111E9429C"/>

... is not recommend for use on a web server.