title: curl: (7) Failed to connect to localhost port 8090: Connection refused
body: <p>Need help. Have been trying for a solution to this issue and could not see an answer or rather I have not come across any.</p>
  
  <p>I have a docker container with NGINX, acting as a reverse proxy. Docker for Windows version 1.12.5(9503).</p>
  
  <pre><code>upstream mysite {
      server 127.0.0.1:8090;
      #server localhost:8090; (have also tried this option)
  }
  
  server {
      listen 0.0.0.0:80;
      server_name  localhost;
  
      location / {
          proxy_pass http://mysite;
      }
  }
  </code></pre>
  
  <p>In the above code localhost:8090 is a url of a website that is hosted on IIS on my host machine. When I access the url on NGINX, I get the following error</p>
  
  <pre><code>2016/12/27 08:11:57 [error] 6#6: *4 no live upstreams while connecting to upstream, client: 172.17.0.1, server: localhost, request: "GET / HTTP/1.1", upstream: "http://googlesite/", host: "localhost"
  172.17.0.1 - - [27/Dec/2016:08:11:57 +0000] "GET / HTTP/1.1" 502 173 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:50.0) Gecko/20100101 Firefox/50.0" "-"
  </code></pre>
  
  <hr>
  
  <p>Tried to access the url on the host machine </p>
  
  <blockquote>
    <p><strong><em>(simple HTML site, single page with only simple html, hosted on IIS with anonymous access granted to all.)</em></strong></p>
  </blockquote>
  
  <pre><code>curl localhost:8090
  </code></pre>
  
  <p>Getting the following error:</p>
  
  <pre><code>curl: (7) Failed to connect to localhost port 8090: Connection refused
  </code></pre>
  
  <p>Am new to Docker and NGINX. Would like to know if it is possible to access urls on the host machine? If Yes, then where am I wrong.</p>
  
  <p>The same configuration works, if I use google.co.in instead of 127.0.0.1:8090.</p>
  
  <p>Thanks.</p>