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    After I setup a proxy server (ngnix) before sunstone server on
    master. From Sunstone UI (192.168.100.10), I can not change zone to
    "zone1". Other functions work well from sunstone UI, but changing
    "zone".
    <ul>
      <li class="say public">
        <p>If I remove the proxy server, and access directly to sunstone
          server: 192.168.100.10:9869, changing "zone" from sunstone
          portal works.</p>
        <p>my nginx reverse proxy server setting is as below:
          <br>
------------------------------------------------------------------
          <br>
          [root@vone_gene ~]# cat /etc/nginx/conf.d/default.conf <br>
          #
          <br>
          # The default server
          <br>
          #
          <br>
          server {
          <br>
          listen 192.168.100.10:80;
          <br>
          server_name mycloud.alcatel-lucent.com;</p>
        <p> location / {
          <br>
          proxy_set_header Host $host;
          <br>
          proxy_set_header X-Real-IP $remote_addr;
          <br>
          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;</p>
        <p> proxy_pass <a href="http://localhost:9869" rel="nofollow"
            target="_blank">http://localhost:9869</a>;
          <br>
          }</p>
        <p> error_page 404 /404.html;
          <br>
          location = /404.html {
          <br>
          root /usr/share/nginx/html;
          <br>
          }</p>
        <p> # redirect server error pages to the static page /50x.html
          <br>
          #
          <br>
          error_page 500 502 503 504 /50x.html;
          <br>
          location = /50x.html {
          <br>
          root /usr/share/nginx/html;
          <br>
          }
          <br>
          }</p>
        <p>sunstone server settings:
          <br>
          ---------------------------------------------
          <br>
################################################################################
          <br>
          # Server Configuration
          <br>
################################################################################</p>
        <p># Directory to store temp files when uploading images
          <br>
          #
          <br>
          :tmpdir: /var/tmp</p>
        <p># OpenNebula sever contact information
          <br>
          #
          <br>
          :one_xmlrpc: <a href="http://localhost:2633/RPC2"
            rel="nofollow" target="_blank">http://localhost:2633/RPC2</a></p>
        <p># Server Configuration
          <br>
          #
          <br>
          :host: 127.0.0.1
          <br>
          :port: 9869</p>
      </li>
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