参数详解:
http://www.nginx.cn/76.html
基本配置与参数说明,性能优化指南:
http://www.chinaz.com/web/2015/0424/401323.shtml
反向代理,负载均衡,页面缓存
http://www.360doc.com/content/13/1114/12/7694408_329125489.shtml
haproxy,nginx,lvs 比较:
http://www.ha97.com/5646.html
keepalive+nginx
http://www.linuxde.net/2013/04/13381.html
http://ju.outofmemory.cn/entry/52165