title: nginx, exchange and ntlm
body: <p>I read many things about using nginx with exchange and NTLM (really many !!). I saw all and the opposite! Often people told it is working, but then said later only with basic auth. Very hard to find a real reply...</p>
  
  <p>Problem is becoming more important now that Outlook 2016 only works in Outlook anywhere mode that needs NTLM (yes I can change it to basic auth, but then user will have to always enter password.)</p>
  
  <p>I can read thinks like:</p>
  
  <pre><code>upstream http_backend {
      server 1.1.1.1:80;
  
      keepalive 16;
  }
  
  server {
  ...
  
  location / {
         proxy_pass http://http_backend/;
         proxy_http_version 1.1;
         proxy_set_header Connection "";
      ...
      }
   }
  </code></pre>
  
  <p>That sounds great, but on nginx forum they told me it won't work except if I have exactly one user!
  <a href="https://forum.nginx.org/read.php?2,72871,264560#msg-264560" rel="nofollow noreferrer">https://forum.nginx.org/read.php?2,72871,264560#msg-264560</a></p>
  
  <p>I seems I have to go with commercial version on nginx that supports NTLM.</p>
  
  <p>Can somebody tells me if he already used free nginx with https to go on exchange server ? I'll have many exchange servers to address (it is working for the time being on OWA, as this is basic auth)</p>
  
  <p>Or maybe you can advise me another free reverse proxy that will work with exchange ?</p>
  
  <p>Thanks a lot, do not hesitate to ask me more info.</p>