exchange/debian/etc-taler-exchange/nginx/sites-available/taler-exchange

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

  #server_name example.com;

  location /taler-exchange/ {
     proxy_pass http://unix:/run/taler/exchange-httpd/exchange-http.sock:/;
     proxy_redirect off;
     proxy_set_header Host $host;
     #proxy_set_header X-Forwarded-Host "example.com";
     #proxy_set_header X-Forwarded-Proto "https";
  }
}