diff --git a/hosts/redmine/default.nix b/hosts/redmine/default.nix
index 6bc3d5e..3e3e183 100644
--- a/hosts/redmine/default.nix
+++ b/hosts/redmine/default.nix
@@ -137,10 +137,26 @@
   services.nginx.appendHttpConfig = ''
     access_log off;
   '';
+  services.nginx.commonHttpConfig = ''
+    real_ip_header proxy_protocol;
+    set_real_ip_from 141.56.51.1/32;
+  '';
 
 ####    Anscheinend kann mit nix nur die Konfiguration fuer eine konkrete (manuelle) Konfiguration fuer den Dienst web server.
   services.nginx.virtualHosts."${config.networking.fqdn}" = {
 ####		https://search.nixos.org/options?show=services.nginx.virtualHosts.<name>.default
+      listen = [
+        {
+          port = 80;
+          addr = "0.0.0.0";
+        }
+        {
+          port = 443;
+          addr = "0.0.0.0";
+          ssl = true;
+          proxyProtocol = true;
+        }
+      ];
     default = true;
     locations."/" = {
       proxyPass = "http://127.0.0.1:${toString config.services.redmine.port}";