How can the browser know the current AD user ASP.NET

Question

Is it possible for the browser to know the currently logged in AD user without explicitly logging in? I want the code in the server to execute with the same permissions as the user in the browser. Is that possible or do I have to require the user to explicitly log on?

Context: ASP.NET, mostly IE 7, IIS 7.

Thanks.

Answer 1

If you...

• use Integrated Windows Authentication in IIS
• in web.config where relevant
• and your users and IIS server are on the same domain

...then it is possible to pass credentials through the browser. IE (being Microsoft's creation) can do this without prompting, other browsers may still insist on users inputting their credentials at the start of a new session.