server
{
        listen 80 default_server;
        server_name graylog01;

        location / {
                proxy_set_header Host $http_host;
                proxy_set_header X-Forwarded-Host $host;
                proxy_set_header X-Forwarded-Server $host;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header X-Graylog-Server-URL http://$server_name/;
                proxy_pass http://0.0.0.0:9000;
        }       
}