Changing http_external_uri makes Graylog inaccessible inside

[macko003]

1. OVA not for production use
2. if you have nginx, you have to change the graylog URL in the proxy. The web UI use a header field to connect to the GL server. Check the documentation.
   https://docs.graylog.org/en/3.1/pages/configuration/web_interface.html