OpenSSH7.4\r\n

SSH-2.0-OpenSSH_7.4\r\n

nginx

HTTP/1.1 403 Forbidden
Server: nginx
Date: Thu, 03 Oct 2024 14:39:54 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: keep-alive
Vary: Accept-Encoding

HTTP/1.1 400 Bad Request
Content-Type: text/plain; charset=utf-8
Connection: close

400 Bad Request