How to set up native Nginx caching for Drupal?

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http://serverfault.com – I am using nginx+ php5-fpm to render pages of a busy Drupal 6 community site. I am currently using Varnish in front of nginx, but accroding to this benchmark To serve dynamic content with HTTP cache, use Nginx with FastCGI cache Unfortunately I could not find any complete instructions to implement nginx native caching for Drupal dynamic content so I appreciate if you could share a working configuration file, and possibly relevant hints/thoughts. Thanks (HowTos)