basic configuration of nginx.conf

gistfile1.nginxconf

user nginx www-data;
worker_processes 1;
pid /var/run/nginx.pid;

events {
  worker_connections 768;
}

http {
  sendfile            on;
  tcp_nopush          on;
  tcp_nodelay         on;
  keepalive_timeout   65;
  types_hash_max_size 2048;

  include      /etc/nginx/mime.types;
  default_type application/octet-stream;

  access_log /var/log/nginx/access.log;
  error_log  /var/log/nginx/error.log;

  gzip         on;
  gzip_disable "msie6";

  include /etc/nginx/sites-enabled/*;
}

inside /etc/nginx/sites-enabled save a file with the config below ... be creative, any name

server {
  listen      80;
  server_name adem.ar;
  charset     utf-8;
  root        /home/ademar/ademar/ademar;

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

Open /etc/hosts and add "127.0.0.1 adem.ar"

important, you must have at least a folder with index.html in /home/ademar/ademar/ademar - make sure that you have user nginx and group www-data in your distro, that folder should belongs to group www-data with an 755 mask