Force sharepoint to ask for authentication

Question

Is there a way to force sharepoint 2010 to popup the dialog to ask the user for a username and password and not use the computers logged in user, if that user doesn't have access.

We need an internal sharepoint website to not use the windows credentials, since these are computers used by many people. The windows user doesn't have access to the site, so currently it shows an access denied, click here to log in as another user. We would prefer if it just asked for credentials in a more graceful manner.

Answer 1

There is a way to configure Internet Explorer to do this. In Internet Explorer(IE),

1. Go to Tools
2. Click Internet Options
3. Click on the Security tab
4. Click on the button labeled Custom Level.
5. Scroll to the very bottom of the list
6. Select the option labeled Prompt for user name and password.

The default option Automatic logon only in Intranet zone' is what is causing IE to send the credentials to SharePoint. This of course would force everyone to log in on that computer.