...
    fastcgi_cache_path /path/to/cache levels=1:2 keys_zone=NAME:10m inactive=5m max_size=2m;

    ...

server {
    location / {
    fastcgi_pass localhost:9000;

    fastcgi_cache NAME;

    fastcgi_cache_key  localhost:9000$request_uri;

    fastcgi_cache_valid 200 302 1h;
    fastcgi_cache_valid 301 1d;
    fastcgi_cache_valid any 1m;

    #fastcgi_cache_min_uses 1;
    }
}