diff --git a/nova/compute/cluster.yml b/nova/compute/cluster.yml
index 5d0e6a1..e8b29cc 100644
--- a/nova/compute/cluster.yml
+++ b/nova/compute/cluster.yml
@@ -1,5 +1,6 @@
 classes:
 - service.nova.compute.kvm
+- service.iptables.server
 parameters:
   _param:
     nova_vncproxy_url: https://${_param:cluster_public_host}:6080
@@ -94,3 +95,15 @@
         public_key: ${_param:nova_compute_ssh_public}
         private_key: ${_param:nova_compute_ssh_private}
       my_ip: ${_param:single_address}
+      libvirt:
+        uri: qemu+unix:///system?socket=/var/run/libvirt/libvirt-sock
+  iptables:
+    service:
+      enabled: true
+      chain:
+        INPUT:
+          rules:
+            # deny any connections to libvirt port
+            - destination_port: 16509
+              protocol: tcp
+              jump: DROP
\ No newline at end of file