Niginx架构以及异步非阻塞原理

http://tengine.taobao.org/book/chapter_02.html

http://www.360doc.com/content/12/0224/11/8555758_189229840.shtml

http://www.zhihu.com/question/20122137

http://blog.csdn.net/shallwake/article/details/5265287

405错误
http://blog.zhanxb.com/post/369/