sudo mkdir /opt/nginx/sites-enabled
sudo mv /opt/nginx/conf/nginx.conf /opt/nginx/conf/nginx.conf.default
sudo nano /opt/nginx/conf/nginx.conf

user www-data;
worker_processes  1;

events {
    worker_connections  1024;
}

http {
    passenger_root /usr/local/lib/ruby/gems/1.8/gems/passenger-2.2.9;
    passenger_ruby /usr/local/bin/ruby;

    include       mime.types;
    default_type  application/octet-stream;
    
    sendfile        on;
 
    keepalive_timeout  65;

    gzip  on;
    include       mime.types;
    default_type  application/octet-stream;
    
    sendfile        on;
 
    keepalive_timeout  65;

    gzip  on;

    include /opt/nginx/sites-enabled/*;

}

sudo nano /opt/nginx/sites-available/default

server {
    listen       80;
    server_name  localhost;

    location / {
        root   html;
        index  index.html index.htm;
    }


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

}

sudo ln -s /opt/nginx/sites-available/default /opt/nginx/sites-enabled/default
sudo /etc/init.d/nginx restart