How to resolve the "Invalid Host header" error?

Question

Nginx

Hello!
I have a server with Nginx, the frontend and backend via NestJs (Vue.js, MongoDB) are installed on the same server. Everything is working.
But when I add a line to the Nginx config, then an error appears when opening the site. How to fix it?
proxy_set_header Host $host;
Invalid Host header

Answer 1

You apparently run http through nodejs, you need to set --host 0.0.0.0 in the nodejs server configs