cuirl命令很强大，可以用来查看网站的server程序

 

curl -i www.taobao.com
HTTP/1.1 301 Moved Permanently
Server: Tengine
Date: Thu, 24 Sep 2020 12:20:04 GMT
Content-Type: text/html
Content-Length: 278
Connection: keep-alive
Location: https://www.taobao.com/
Via: cache6.cn1058[,0]
Timing-Allow-Origin: *
EagleId: b68c8b1a16009500043641287e

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html>
<head><title>301 Moved Permanently</title></head>
<body bgcolor="white">
<h1>301 Moved Permanently</h1>
<p>The requested resource has been assigned a new permanent URI.</p>
<hr/>Powered by Tengine</body>
</html>

 

 

可以看到淘宝用的ngix的变种Tengine