Why duplicate server name blocks in Nginx?

Question

Nginx

Host settings example:

server {
    listen 80 default_server;
    listen [::]:80 default_server;

    # SSL configuration

    # listen 443 ssl default_server;
    # listen [::]:443 ssl default_server;

    . . .

Answer 1

You can not duplicate, spreading across different blocks. It's easier if you have the same processing of requests to the HTTP and HTTPS versions of the site.