Nginx深入使用-服务器名称(server_name)规则

http://wxb.github.io/2019/05/24/Nginx%E6%B7%B1%E5%85%A5%E4%BD%BF%E7%94%A8-%E6%9C%8D%E5%8A%A1%E5%99%A8%E5%90%8D%E7%A7%B0-server-name-%E8%A7%84%E5%88%99.html