drupal 8 nginx in ubuntu server installation problem

I was able to install nginx, php5 and drupal 8 as well. But the site does not see work as expected.

You can see this url. http://128.199.198.98/

And below is nginx config.

server { #listen 80; ## listen for ipv4; this line is default and implied #listen [::]:80 default ipv6only=on; ## listen for ipv6

    root /usr/share/nginx/www/d8;
    index index.php index.html index.htm;

    # Make site accessible from http://localhost/
    server_name 128.199.198.98;

    location / {
            # First attempt to serve request as file, then
            # as directory, then fall back to index.html
            try_files $uri $uri/ /index.html;
            # Uncomment to enable naxsi on this location
            # include /etc/nginx/naxsi.rules
    }

    location /doc/ {
            alias /usr/share/doc/;
            autoindex on;
            allow 127.0.0.1;
            deny all;
    }

    # Only for nginx-naxsi : process denied requests
    #location /RequestDenied {
            # For example, return an error code
            #return 418;
    #}

    error_page 404 /404.html;

    # redirect server error pages to the static page /50x.html
    #
    error_page 500 502 503 504 /50x.html;
    location = /50x.html {
            root /usr/share/nginx/www;
    }

    location @rewrite {
            # Drupal in a subdirectory
            rewrite ^/([^/]*)/(.*)(/?)$ /$1/index.php?q=$2&$args;

    }