Nginx 的缓存模块 srcache

http://www.oschina.net/p/srcache
memc-nginx和srcache-nginx模块均为前淘宝工程师agentzh（章亦春）开发。

nginx 图片缓存
http://blog.csdn.net/xiaolang85/article/details/38260117

配置nginx的图片服务器
http://www.cnblogs.com/jarrah/p/3729313.html


nginx图片缓存服务器配置实战
http://www.07net01.com/linux/nginxtupianhuancunfuwuqipeizhishizhan_20184_1350045397.html
nginx-0.8

ngx_cache_purge-1.0

pcre-8.20