Authentication between servers in nginx via auth, is it possible?

Question

Nginx

there are two servers (frontend and backend), requests are proxied from frontend to backend. Is it possible to use standard nginx tools to configure backend authentication, and automate login and password input on frontend, so that any requests from the front to the back are proxied only after automatic input of the login and password of the frontend server?

Answer 1

This is an overhead.
Just set up access from the front IP on the back, restrict everyone else and that's it.