http caching - oct 2, 2014 re-reading and studying: https://www.digitalocean.com/community/tutorials/how-to-setup-fastcgi-caching-with-nginx-on-your-vps http://www.jimwestergren.com/wordpress-with-redis-as-a-frontend-cache/ http://www.nodex.co.uk/article/13-04-12/high-performance-caching-with-nginx-redis-and-php https://www.igvita.com/2008/02/11/nginx-and-memcached-a-400-boost/ https://eamann.com/tech/ludicrous-speed-wordpress-caching-with-redis/ #caching - #redis - #memcached