icecast-kh Nginx config with IP-Forwarding

icecastkh-proxy.conf

server {

  listen 80;
  listen [::]:80;

  listen 443 ssl http2;
  listen [::]:443 ssl http2;

  ssl_certificate /etc/nginx/ssl/example.com.pem;
  ssl_certificate_key /etc/nginx/ssl/example.com.key;

  server_name icecast.example.com;

  location / {

    proxy_pass http://127.0.0.1:8000/;
    proxy_redirect off;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

    subs_filter_types application/xspf+xml audio/x-mpegurl audio/x-vclt text/css text/xml;
    subs_filter ':8000/' '/' gi;
    subs_filter '@localhost' '@example.com' gi;
    subs_filter 'localhost' $host gi;
    subs_filter 'Mount Point ' $host gi;
  }
  location /admin/ {
  
    deny all;
  }

  location /server_version.xsl {
  
    deny all;
  }
}