source from 《HTTP权威指南》 概述-Summary 报文-Message 连接-Connection 代理-Proxy 缓存-Cache 网关、隧道与中继-Gateway、Tunnel and Relay 识别-Identification 认证-Authentication 安全-Security 实体与编码-Entity and Encoding 转载于:https://www.cnblogs.com/dasn/articles/6599810.html