diff --git a/hosts/dmz/hardware-configuration.nix b/hosts/dmz/hardware-configuration.nix
index b8f869b..fff60bf 100644
--- a/hosts/dmz/hardware-configuration.nix
+++ b/hosts/dmz/hardware-configuration.nix
@@ -83,7 +83,7 @@
           "10-lan" = {
               matchConfig.Name = "ens18";
               ntp = [ "192.168.101.1" ];
-              #domains = [ "home.opel-online.de" ];
+              domains = [ "home.opel-online.de" ];
               networkConfig = {
                 DHCP = "yes";
                 IPv6AcceptRA = true;
diff --git a/hosts/jupiter/hardware-configuration.nix b/hosts/jupiter/hardware-configuration.nix
index 7636ebd..7d232de 100644
--- a/hosts/jupiter/hardware-configuration.nix
+++ b/hosts/jupiter/hardware-configuration.nix
@@ -195,7 +195,7 @@
           "10-lan" = {
               matchConfig.Name = "ens18";
               ntp = [ "192.168.2.1" ];
-              #domains = [ "home.opel-online.de" ];
+              domains = [ "home.opel-online.de" ];
               networkConfig = {
                 DHCP = "yes";
                 IPv6AcceptRA = true;
diff --git a/hosts/kubemaster-1/hardware-configuration.nix b/hosts/kubemaster-1/hardware-configuration.nix
index 4e3a6c3..f64a825 100644
--- a/hosts/kubemaster-1/hardware-configuration.nix
+++ b/hosts/kubemaster-1/hardware-configuration.nix
@@ -83,7 +83,7 @@
           "10-lan" = {
               matchConfig.Name = "enp0s31f6";
               ntp = [ "192.168.2.1" ];
-              #domains = [ "home.opel-online.de" ];
+              domains = [ "home.opel-online.de" ];
               networkConfig = {
                 DHCP = "yes";
                 IPv6AcceptRA = true;
diff --git a/hosts/nasbackup/hardware-configuration.nix b/hosts/nasbackup/hardware-configuration.nix
index 414173c..2e21bd1 100644
--- a/hosts/nasbackup/hardware-configuration.nix
+++ b/hosts/nasbackup/hardware-configuration.nix
@@ -201,7 +201,7 @@
           "10-lan" = {
               matchConfig.Name = "ens18";
               ntp = [ "192.168.2.1" ];
-              #domains = [ "home.opel-online.de" ];
+              domains = [ "home.opel-online.de" ];
               networkConfig = {
                 DHCP = "yes";
                 IPv6AcceptRA = true;