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server {
    listen                         0.0.0.0:80;

    server_name                    _default_;
    location /index.html {
        root                       /usr/share/webpages/nosites/;
        log_not_found              off;
    }

    location / {
        error_page 503 /index.html;
        log_not_found              off;
        return                     503;
    }
}