From: Nick Brown <nick@...>
Date: 2010-03-19T04:24:15+09:00
Subject: web app authentication to active directory

I have a Windows/IIS server which is running some plain-old-CGI Ruby web
apps. Because it's Windows/IIS, authentication is *really* easy in our
active directory environment. I simply have to enable authentication
(kerberos) for the app, then set the permissions on the .cgi files
(users in group X may access this file).

Well, I want to start using Rack-based apps (such as Sinatra), but I
still want seamless authentication. I don't want to force users to type
their passwords--I want the browser and the web server to do seamless
kerberos authentication.

What are my options? I gather that there are no Rack implementations for
IIS. Has anyone successfully managed to get something like this working
on Apache/Passenger? Or is there a better option? Or is it possible to
trigger kerberos at the application level?

Thanks in advance for any advice...
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