diff --git a/applications/dns.nix b/applications/dns.nix
index 683f3b7..1fff9f2 100644
--- a/applications/dns.nix
+++ b/applications/dns.nix
@@ -270,6 +270,26 @@ in {
           # no leading whitespace for first line
 
         };
+
+        "csn.ul.ie" = {
+          extraConfig = ''
+            allow-update { key rfc2136key.skynet.ie.; };
+
+            dnssec-policy default;
+            inline-signing yes;
+
+            // for bumping the config
+            // ${current_date}
+          '';
+          # really wish teh nixos config didnt use master/slave
+          master = true;
+          slaves = [ ];
+          # need to write this to a file
+          # using the date in it so it will trigger a restart
+          file = "/etc/dns_custom/dns_zone_csn";
+          # no leading whitespace for first line
+
+        };
       };
     };
 
@@ -291,6 +311,16 @@ in {
 
         text = get_config_file "skynet.ie";
       };
+
+      "dns_custom/dns_zone_csn" = {
+        user = "named";
+        group = "named";
+
+        # The UNIX file mode bits
+        mode = "0644";
+
+        text = get_config_file "csn.ul.ie";
+      };
     };
   };
 }
\ No newline at end of file