Redirect Unauthorized Access

[Evan M.]

I've got an ASP.NET application that's using Windows authentication
with Integrated Windows authentication turned on to manage access.

Access to the web app should be restricted to only a couple AD Groups,
and I'm trying to get anybody else that tries to access the
application to be redirected to a friendly error page. However, I've
only been able to get a generic ASP.NET error page (401.2) to be
displayed.

I've tried getting it set up in web.config, but no matter what I do,
it doesn't seem to work.

The only option I've seen so far is to remove the authorization
information from web.config, and instead use Global.asax with the
following handler:
void Application_AuthenticateRequest(Object sender, EventArgs e) {
String AuthURL = "/AccessDenied.aspx";
if (!User.IsInRole("Domain\UserGroup")
&& Request.FilePath != AuthURL)
{
Server.Transfer(AuthURL);
}
}

Is there something that I'm missing?
Evan

[bruce barker]

browser access is pretty simple. the browser asks for a url, if access
is denied, the web server returns 401 with a list of authentication
methods. the browser is free to try again as many times as it wants with
different credentials.

your approach is the correct one.

-- bruce (sqlwork.com)
Evan M. wrote:

I've got an ASP.NET application that's using Windows authentication
with Integrated Windows authentication turned on to manage access.

Access to the web app should be restricted to only a couple AD Groups,
and I'm trying to get anybody else that tries to access the
application to be redirected to a friendly error page. However, I've
only been able to get a generic ASP.NET error page (401.2) to be
displayed.

I've tried getting it set up in web.config, but no matter what I do,
it doesn't seem to work.

The only option I've seen so far is to remove the authorization
information from web.config, and instead use Global.asax with the
following handler:
void Application_AuthenticateRequest(Object sender, EventArgs e) {
String AuthURL = "/AccessDenied.aspx";
if (!User.IsInRole("Domain\UserGroup")
&& Request.FilePath != AuthURL)
{
Server.Transfer(AuthURL);
}
}

Is there something that I'm missing?
Evan