Hi Francis -
In both cases, I get a 404 response, which is to be expected as the default doc root for nginx isn't served on my host. I should expect a 401 on the second curl test, but I get a 404.
HTTP/1.1 404 Not Found
Server: nginx
Date: Fri, 14 Apr 2017 03:44:19 GMT
Content-Type: text/html
Content-Length: 162
Connection: keep-alive
Vary: Accept-Encoding
<html>
<head><title>404 Not Found</title></head>
<body bgcolor="white">
<center><h1>404 Not Found</h1></center>
<hr><center>nginx</center>
</body>
</html>