init new infra

newinfra/nix/modules/dns/default.nix

@@ -0,0 +1,28 @@
+{ pkgs, ... }: {
+  # get the package for the debugging tools
+  environment.systemPackages = with pkgs; [ knot-dns ];
+
+  networking.firewall.allowedUDPPortRanges = [
+    { from = 53; to = 53; }
+  ];
+
+  services.knot = {
+    enable = true;
+    settingsFile = pkgs.writeTextFile {
+      name = "knot.conf";
+      text = ''
+        server:
+            listen: 0.0.0.0@53
+            listen: ::@53
+
+        zone:
+          - domain: noratrieb.dev
+            storage: /var/lib/knot/zones/
+            file: ${import ./noratrieb.dev.nix { inherit pkgs; }}
+        log:
+          - target: syslog
+            any: info
+      '';
+    };
+  };
+}