title: How can I authenticate against Active Directory in Nancy?
body: <p>It's an outdated article, but <a href="http://msdn.microsoft.com/en-us/library/ff650308.aspx#paght000026_step3" rel="noreferrer">http://msdn.microsoft.com/en-us/library/ff650308.aspx#paght000026_step3</a> illustrates what I want to do. I've chosen <a href="http://nancyfx.org/" rel="noreferrer">Nancy</a> as my web framework because of it's simplicity and low-ceremony approach. So, I need a way to authenticate against Active Directory using <a href="http://nancyfx.org/" rel="noreferrer">Nancy</a>. </p>
  
  <p>In ASP.NET, it looks like you can just switch between a db-based membership provider and Active Directory just by some settings in your web.config file. I don't need that specifically, but the ability to switch between dev and production would be amazing.</p>
  
  <p>How can this be done?</p>