Reverse Proxy

NGINX

server {
  server_name changethis;

    listen 443 ssl;
    listen [::]:443 ssl;
    http2 on;
    ssl_certificate /etc/letsencrypt/live/changethis/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/changethis/privkey.pem;
    include /etc/letsencrypt/options-ssl-nginx.conf;
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;

    add_header strict_sni on;
    add_header strict_sni_header on;
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
    add_header Content-Security-Policy upgrade-insecure-requests;
    add_header X-XSS-Protection "1; mode=block";
    add_header X-Content-Type-Options nosniff;
    add_header X-Frame-Options "DENY";
    add_header Clear-Site-Data "cookies";
    add_header Referrer-Policy "no-referrer";
    add_header Permissions-Policy "interest-cohort=(),accelerometer=(),ambient-light-sensor=(),autoplay=(),camera=(),encrypted-media=(),focus-without-user-activation=(),geolocation=(),gyroscope=(),magnetometer=(),microphone=(),midi=(),payment=(),picture-in-picture=(),speaker=(),sync-xhr=(),usb=(),vr=()";
    add_header Cross-Origin-Resource-Policy cross-origin;
    add_header Cross-Origin-Embedder-Policy require-corp;
    add_header Cross-Origin-Opener-Policy unsafe-none;
    resolver 1.1.1.1;
    
    ssl_trusted_certificate /etc/letsencrypt/live/changethis/chain.pem;
    ssl_stapling on;
    ssl_stapling_verify on;

    access_log /dev/null;
    error_log  /dev/null;

   location / {
   # Restoring original visitor IPs (https://www.cloudflare.com/ips-v4)
        # - IPv4
        set_real_ip_from 103.21.244.0/22;
        set_real_ip_from 103.22.200.0/22;
        set_real_ip_from 103.31.4.0/22;
        set_real_ip_from 104.16.0.0/13;
        set_real_ip_from 104.24.0.0/14;
        set_real_ip_from 108.162.192.0/18;
        set_real_ip_from 131.0.72.0/22;
        set_real_ip_from 141.101.64.0/18;
        set_real_ip_from 162.158.0.0/15;
        set_real_ip_from 172.64.0.0/13;
        set_real_ip_from 173.245.48.0/20;
        set_real_ip_from 188.114.96.0/20;
        set_real_ip_from 190.93.240.0/20;
        set_real_ip_from 197.234.240.0/22;
        set_real_ip_from 198.41.128.0/17;

        # - IPv6
        # Restoring original visitor IPs (https://www.cloudflare.com/ips-v6)
        set_real_ip_from 2400:cb00::/32;
        set_real_ip_from 2606:4700::/32;
        set_real_ip_from 2803:f800::/32;
        set_real_ip_from 2405:b500::/32;
        set_real_ip_from 2405:8100::/32;
        set_real_ip_from 2a06:98c0::/29;
        set_real_ip_from 2c0f:f248::/32;

        real_ip_header CF-Connecting-IP;
        real_ip_recursive on;
    
   proxy_pass http://localhost:1234;
   proxy_http_version 1.1;
   proxy_set_header Upgrade $http_upgrade;
   proxy_set_header Connection "Upgrade";
   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 Host $http_host;
   proxy_pass_header Authorization;
        }
}

server {
  listen 80;
  listen [::]:80;
  server_name changethis;
  return 301 https://changethis$request_uri;
  }