title: TFS 2010: How to configure TFS Proxy authentication for source control?
body: <p>I keep getting the following:</p>
  
  <blockquote>
    <p>The source control proxy 'tfs2010' is not responding, so the request
    will be sent to the main server.  Please verify your settings.
    Additional information:   TF30063: You are not authorized to access
    Microsoft-IIS/7.5.</p>
  </blockquote>
  
  <p>Clearly, the problem is that Proxy machine (IIS) is not letting my real TFS server user through.</p>
  
  <p>Both TFS server and proxy are on 2008R2 servers, and neither is a member of AD, so NTLM authentication is a must.</p>
  
  <p>It's clear however that TFS client must be able to authenticate against the real server and pass the proxy, while the two could potentially have no idea about each other's users.</p>
  
  <p>The frustrating part is that I couldn't find anything about how TFS authentication works in neither Install guide or any of the online HOWTOs.</p>