diff --git a/.gitignore b/.gitignore
index de58db5..3673b9b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,2 @@
 configuration.nix
-vars-uuids.nix
-vars-backup.nix
+vars-*.nix
diff --git a/extra/dyndns.nix b/extra/dyndns.nix
new file mode 100644
index 0000000..a0151a1
--- /dev/null
+++ b/extra/dyndns.nix
@@ -0,0 +1,14 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = import ../vars-dyndns.nix;
+in
+{
+  services.ddclient = {
+    enable = true;
+    server = cfg.dyndns.server;
+    username = cfg.dyndns.username;
+    passwordFile = "/root/.dyndns_password";
+    domains = cfg.dyndns.domains;
+    ipv6 = true;
+  };
+}
diff --git a/serverle.nix b/serverle.nix
index 646236b..6955ffa 100644
--- a/serverle.nix
+++ b/serverle.nix
@@ -13,6 +13,7 @@
     ./extra/3d-printer.nix
     ./extra/ssh.nix
     ./extra/avahi.nix
+    ./extra/dyndns.nix
     ./hardware/raspberrypi4.nix
   ];
   networking.hostName = "serverle";