HTTP/1.0 200 OK
Server: Serv-U/15.0.1.20
Date: Tue, 05 Nov 2019 05:03:32 GMT
Accept-Encoding: deflate
Connection: close
X-Frame-Options: sameorigin
Content-Type: text/html
Pragma: no-cache
Cache-Control: no-cache,max-age=0,must-revalidate
Set-Cookie: Session=; expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/
Content-Length: 47716

220 Serv-U FTP Server v15.0 ready...

\x05\x00 \x03\x10\x00\x00\x00\x18\x00\x00\x00\x01\x00\x00\x00\x04\x00\x01\x05\x00\x00\x00\x00

HTTP/1.1 400 Bad Request
Content-Type: text/html
Date: Wed, 21 Aug 2019 16:54:19 GMT
Connection: close
Content-Length: 39

Remote Desktop Protocol \x03\x00\x00\x13\x0e\xd0\x00\x00\x124\x00\x03\x00\x08\x00\x02\x00\x00\x00