Nginx server and location block – Explains matching against server and location blocks

Reverse proxy – Explanations and examples

    location / {
        # Nextcloud spesific proxy
        proxy_pass_header Server;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-host $host;
 
        proxy_pass_header Authorization;
 
        proxy_pass http://192.168.1.218:80;
    }