how to deny directory by ip address in nginx

Hi
Suppose i got /var/www/website/secretfiles

I want secretfiles to be accessed by only a few specific static ip addresses

How do i achieve this ?
This was possible in Apache2 using .htaccess files.
But i really dont know how to get it going with nginx.

Please advice.

Thank You

 

Code:

location <dir> {
  allow 1.2.3.4/32; # To give one ip access
  allow 192.168.1.0/24; # To give a whole network access
  deny all;
}

 

i put these in nginx.conf ?
using debian lenny

 

/etc/nginx/sites-enabled/default ?

 

Okay thanks

 

http://www.cyberciti.biz/faq/linux-unix-nginx-access-control-howto/

I can do it in nginx.conf

thanks for telling me the right words
i searched with location deny nginx
and got to the correct page
thank you