My issue:
I’ve created an access list with username / passwort as a basic security thing.
When I assign this access list to one of my proxy hosts and enter the url, the login pops ups. I enter the credentials and the first page of the server is loading, so it looks like Nginx accepts the credentials. But then the login pops up again, I enter the credentials again, the login pops up again etc.
I configed it via the NGinx UI. As I didn’t find a documentation for this (only for CLI implementation of http basic authentication) maybe I missed something. Nginx is installed in Docker, the apache2-utils are installed manually.