diff --git a/lass/1systems/mors.nix b/lass/1systems/mors.nix
index 803c149b8..7b91fa6be 100644
--- a/lass/1systems/mors.nix
+++ b/lass/1systems/mors.nix
@@ -22,6 +22,12 @@
     ../2configs/bitlbee.nix
     ../2configs/firefoxPatched.nix
     ../2configs/skype.nix
+    {
+      #risk of rain port
+      krebs.iptables.tables.filter.INPUT.rules = [
+        { predicate = "-p tcp --dport 11100"; target = "ACCEPT"; }
+      ];
+    }
     {
       #wordpress-test
       #imports = singleton (sitesGenerators.createWordpress "testserver.de");