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HTTP 服务器的奇怪响应

tag-icon • tag-icon command-line http tcp https hosts
HTTP 服务器的奇怪响应

扫描本地无线网络时，我注意到一个陌生的设备。它有两个开放的（正在监听？）TCP 端口；TCP/80（http？）& TCP/443（https？）。

为了识别不熟悉的设备，我练习了一些基本的横幅抓取技术，但却得到了一些奇怪的反馈：

root@localhost:~# telnet 10.1.1.28 80
Trying 10.1.1.28...
Connected to 10.1.1.28.
Escape character is '^]'.
HEAD / HTTP/1.1
@Q�0�njs-k��`Y���s��N��E2R�S������d���aw��
s�Y�/u"�`QN���I�eRA~W

Connection closed by foreign host.


root@localhost:~# telnet 10.1.1.28 80
Trying 10.1.1.28...
Connected to 10.1.1.28.
Escape character is '^]'.
GET / HTTP/1.1

HTTP/1.0 404 Not Found

Connection closed by foreign host.


root@localhost:~# telnet 10.1.1.28 80
Trying 10.1.1.28...
Connected to 10.1.1.28.
Escape character is '^]'.
HEAD / HTTP/1.1
"�))!���]D�7�ב�����┴�IL&�┬��#�-�zp�,o�������c��D����ל]�h����
                                                                @�.GLMC��2{���

Connection closed by foreign host.

这些奇怪的反应是什么？

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