Nginx gives an Internal Server Error 500 after I have configured basic auth

Question

I am trying to do basic auth on Nginx. I have version 1.9.3 up and running on Ubuntu 14.04 and it works fine with a simple html file.

Here is the html file:

Answer 1

I was running Nginx in a Docker environment and I had the same issue. The reason was that some of the passwords were generated using bcrypt. I resolved it by using nginx:alpine.