title: Using curl I added the header "HTTP_X_REAL_IP", on the server side it becomes "HTTP_HTTP_X_REAL_IP"
body: <p>This is my curl script:</p>
  
  <pre><code>curl -H "HTTP_X_REAL_IP: ip" "domain"
  </code></pre>
  
  <p>This is my server environment:</p>
  
  <pre><code>&gt; 'HTTP_ACCEPT': '*/*', 'SERVER_PORT': '9646', 'REMOTE_PORT': '55278',
  &gt; 'SERVER_PROTOCOL': 'HTTP/1.1', 'SERVER_SOFTWARE': 'gunicorn/0.13.4',
  &gt; 'HTTP_HTTP_X_REAL_IP': '0.0.0.0',
  </code></pre>