diff --git a/manifests/main/config.pp b/manifests/main/config.pp
index b9a15a3..3736081 100644
--- a/manifests/main/config.pp
+++ b/manifests/main/config.pp
@@ -8,7 +8,7 @@ class confdroid_ntp::main::config (
 ) inherits confdroid_ntp::params {
   include confdroid_ntp::main::service
 
-#  if $ay_manage_nagios == true {
-#    include confdroid_ntp::monitoring::target
-#  }
+  if $cy_manage_nagios == true {
+    include confdroid_ntp::monitoring::target
+  }
 }
diff --git a/manifests/monitoring/target.pp b/manifests/monitoring/target.pp
index e5da6f7..413118d 100644
--- a/manifests/monitoring/target.pp
+++ b/manifests/monitoring/target.pp
@@ -6,4 +6,18 @@
 class confdroid_ntp::monitoring::target (
 
 ) inherits confdroid_ntp::params {
+  if $cy_manage_nagios == true {
+    @@nagios_service { "check_chronyd_${fqdn}":
+      check_command       => "check_nrpe!check_chronyd!${cy_procs_allowed}!chrony",
+      use                 => 'generic-service',
+      host_name           => $fqdn,
+      notification_period => '24x7',
+      service_description => "${fqdn}_check_chronyd",
+      target              => $cy_target_service,
+      owner               => 'nagios',
+      group               => 'nagios',
+      mode                => '0640',
+      contacts            => $cy_target_contacts,
+    }
+  }
 }
diff --git a/manifests/params.pp b/manifests/params.pp
index 3047f78..3863ca5 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -18,6 +18,10 @@
 # @param [String] cy_loginfo Log information to record. Valid values are
 #   'measurements', 'statistics', and 'tracking'.
 # @param [Boolean] cy_use_lan_server Whether to use a local LAN server or external pool.
+# @param [Boolean] cy_manage_nagios Whether to manage Nagios monitoring for the module.
+# @param [String] cy_procs_allowed Number of allowed processes for the Nagios check.
+# @param [String] cy_target_service Path to the Nagios service configuration file.
+# @param [Array] cy_target_contacts List of Nagios contacts for notifications.
 ###############################################################################
 class confdroid_ntp::params (
 
@@ -35,6 +39,12 @@ class confdroid_ntp::params (
   String $cy_leapsectz        = 'right/UTC',
   String $cy_loginfo          = 'measurements statistics tracking',
 
+# monitoring
+  Boolean $cy_manage_nagios   = false,
+  String $cy_procs_allowed    = '1',
+  String $cy_target_service   = '/etc/nagios/conf.d/chronyd_service.cfg',
+  Array $cy_target_contacts   = ['admin'],
+
 ) {
 # facts
   $fqdn                       = $facts['networking']['fqdn']