Updated the master zone template and made some crude defaults to dyndns.

dns/templates/zone.master.erb

@@ -4,8 +4,9 @@ zone "<%= zone %>" {
     <% if not slaves.empty? -%>
         allow-transfer {
       <% slaves.each do |slave| -%>
-        <%= slave['ipaddr'] %>;
+        <%= slave %>;
       <% end -%>
   };
+  allow-update { none;};
     <% end -%>
 };

dns/templates/zone.slave.erb

@@ -5,5 +5,6 @@ zone "<%= zone %>" {
         <% master.each do |m| -%>
         <%= m %>;
         <% end -%>
+        allow-transfer { none; };
         };
 };