srcache_nginx redis 构建nginx分布式缓存

参考文章：
http://www.ttlsa.com/?s=srcache_nginx+redis


http://www.ttlsa.com/nginx/memc_nginx_srcache_nginx_memcached-to-construct-transparent-caching-dynamic-pages/
http://www.ttlsa.com/nginx/construction-of-srcache_nginx_redis-caching-system/
http://www.ttlsa.com/nginx/to-build-an-application-cache-system-of-srcache_nginx-redis/
http://www.ttlsa.com/web/srcache_nginx-redis-purge-cache/