Re: Seamless Login Page with ASP Dotnet

From: Chris Rolon (chris.rolon_at_removethis.neudesic.com)
Date: 01/28/05 

Date: Fri, 28 Jan 2005 09:11:33 -0800

In order to get the credentials of the user you will have to setup IIS for
your site as follows:
1. Disable anonymous access to you site in IIS.
2. Enable Windows Integrated Authentication.

In ASP .Net you will need to add the following to web.config:
<identity impersonate="true" />

In your code you do the following:
WindowsPrincipal wp = new WindowsPrincipal(WindowsIdentity.GetCurrent());

This will create a WindowsPrincipal with the user that is currently logged
into the domain. If you allow anonymous access or do not impersonate, the
WindowsPrincipal will be for the account used by ASP .Net. That will either
be ASPNET or NETWORK SERVICE.

Chris Rolon

"Joe Rigley" <jcrigley@spartanmotors.com> wrote in message
news:Owx6nTUBFHA.2640@TK2MSFTNGP14.phx.gbl...
> Hi,
>
> I'm a little new to ASP Dotnet, but have been coding in classic ASP for
over
> 5 years...
>
> I'd appreciate some suggestions/guidance in writing an Intranet login page
> that authenticates domain users to AD on a Win2003 server. Is it possible
> to code an .aspx page that will "automatically obtain the login user's
> creditentials" (User ID and/or P/W) they provided to AD when the user
logged
> into their workstation? When I say "automatically obtain the
creditentials"
> I mean the user does NOT enter any info on the page. The code behind page
> some how obtains that info via classes or objects or the Dotnet Framework.
> I'd like to use that info to re-verify the account that is still active in
> AD via an LDAP lookup. If it is still valid, then allow the user into
> various Intranet websites, thus providing an "Automatic or Seamless" login
> for the users.
>
> Is something like this possible to do? I thought I read somewhere that it
> was possible with ASP Dotnet and not in classic ASP. Please let me know
if
> that is true and a basic plan on how could make it happen.
>
> Any suggestions would be appreciated. Thanks,
> -Joe
>
>

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