enable bind dns and chrony ntp server and set them up in default.nix

default.nix

@@ -26,8 +26,8 @@ in
 {
 
   networking.nameservers = [
+    "141.56.51.1"
     "141.56.1.1"
-    "141.56.1.2"
   ];
 
   boot.kernelPackages = pkgs.linuxPackages_latest;
@@ -52,6 +52,14 @@ in
 
   time.timeZone = "Europe/Berlin";
 
+  # Use proxy as NTP server for time synchronization
+  # Disable in containers as they inherit time from the host
+  services.chrony = {
+    enable = !config.boot.isContainer;
+    servers = [ "141.56.51.1" ];
+    enableNTS = false;
+  };
+
   i18n.defaultLocale = "en_US.UTF-8";
   console = {
     font = "Lat2-Terminus16";
@@ -66,7 +74,6 @@ in
   ####    Mit der Anwendung Nginx soll die (ausschließliche) Verwendung von https (http mit TLS), statt http ermoeglicht werden.
   services.nginx.recommendedTlsSettings = true;
 
-
   users.users = {
     # erstmal nur mit root
     # administration = {

hosts/proxy/default.nix

@@ -20,10 +20,6 @@
       }
     ];
     defaultGateway.address = "141.56.51.254";
-    nameservers = [
-      "9.9.9.9"
-      "1.1.1.1"
-    ];
     firewall = {
       allowedTCPPorts = [
         22
@@ -222,7 +218,10 @@
           "9.9.9.9"
           "1.1.1.1"
         ];
-        listenOn = [ "141.56.51.1" ];
+        listenOn = [
+          "141.56.51.1"
+          "127.0.0.1"
+        ];
         listenOnIpv6 = [ ];
       };
 
@@ -230,7 +229,12 @@
       chrony = {
         enable = true;
         enableNTS = false;
-        servers = [ "pool.ntp.org" ];
+        servers = [
+          "0.de.pool.ntp.org"
+          "1.de.pool.ntp.org"
+          "2.de.pool.ntp.org"
+          "3.de.pool.ntp.org"
+        ];
         serverOption = "iburst";
         extraConfig = ''
           # Allow NTP client access from local network