diff --git a/doc/puppet_classes/confdroid_ntp_3A_3Amain_3A_3Aconfig.html b/doc/puppet_classes/confdroid_ntp_3A_3Amain_3A_3Aconfig.html
index 2e52ed9..b118542 100644
--- a/doc/puppet_classes/confdroid_ntp_3A_3Amain_3A_3Aconfig.html
+++ b/doc/puppet_classes/confdroid_ntp_3A_3Amain_3A_3Aconfig.html
@@ -119,9 +119,9 @@ 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
+  }
 }</pre>
       </td>
     </tr>
diff --git a/doc/puppet_classes/confdroid_ntp_3A_3Amonitoring_3A_3Atarget.html b/doc/puppet_classes/confdroid_ntp_3A_3Amonitoring_3A_3Atarget.html
index 2e79b2d..3431503 100644
--- a/doc/puppet_classes/confdroid_ntp_3A_3Amonitoring_3A_3Atarget.html
+++ b/doc/puppet_classes/confdroid_ntp_3A_3Amonitoring_3A_3Atarget.html
@@ -104,7 +104,21 @@
 6
 7
 8
-9</pre>
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23</pre>
       </td>
       <td>
         <pre class="code"><span class="info file"># File 'manifests/monitoring/target.pp', line 6</span>
@@ -112,6 +126,20 @@
 class confdroid_ntp::monitoring::target (
 
 ) inherits confdroid_ntp::params {
+  if $cy_manage_nagios == true {
+    @@nagios_service { &quot;check_chronyd_${fqdn}&quot;:
+      check_command       =&gt; &quot;check_nrpe!check_chronyd!${cy_procs_allowed}!chrony&quot;,
+      use                 =&gt; &#39;generic-service&#39;,
+      host_name           =&gt; $fqdn,
+      notification_period =&gt; &#39;24x7&#39;,
+      service_description =&gt; &quot;${fqdn}_check_chronyd&quot;,
+      target              =&gt; $cy_target_service,
+      owner               =&gt; &#39;nagios&#39;,
+      group               =&gt; &#39;nagios&#39;,
+      mode                =&gt; &#39;0640&#39;,
+      contacts            =&gt; $cy_target_contacts,
+    }
+  }
 }</pre>
       </td>
     </tr>
diff --git a/doc/puppet_classes/confdroid_ntp_3A_3Aparams.html b/doc/puppet_classes/confdroid_ntp_3A_3Aparams.html
index 6f0198f..77fd777 100644
--- a/doc/puppet_classes/confdroid_ntp_3A_3Aparams.html
+++ b/doc/puppet_classes/confdroid_ntp_3A_3Aparams.html
@@ -284,6 +284,78 @@
         &mdash;
         <div class='inline'>
 <p>Whether to use a local LAN server or external pool.</p>
+</div>
+      
+    </li>
+  
+    <li>
+      
+        <span class='name'>cy_manage_nagios</span>
+      
+      
+        <span class='type'>(<tt>Boolean</tt>)</span>
+      
+      
+        <em class="default">(defaults to: <tt>false</tt>)</em>
+      
+      
+        &mdash;
+        <div class='inline'>
+<p>Whether to manage Nagios monitoring for the module.</p>
+</div>
+      
+    </li>
+  
+    <li>
+      
+        <span class='name'>cy_procs_allowed</span>
+      
+      
+        <span class='type'>(<tt>String</tt>)</span>
+      
+      
+        <em class="default">(defaults to: <tt>&#39;1&#39;</tt>)</em>
+      
+      
+        &mdash;
+        <div class='inline'>
+<p>Number of allowed processes for the Nagios check.</p>
+</div>
+      
+    </li>
+  
+    <li>
+      
+        <span class='name'>cy_target_service</span>
+      
+      
+        <span class='type'>(<tt>String</tt>)</span>
+      
+      
+        <em class="default">(defaults to: <tt>&#39;/etc/nagios/conf.d/chronyd_service.cfg&#39;</tt>)</em>
+      
+      
+        &mdash;
+        <div class='inline'>
+<p>Path to the Nagios service configuration file.</p>
+</div>
+      
+    </li>
+  
+    <li>
+      
+        <span class='name'>cy_target_contacts</span>
+      
+      
+        <span class='type'>(<tt>Array</tt>)</span>
+      
+      
+        <em class="default">(defaults to: <tt>[&#39;admin&#39;]</tt>)</em>
+      
+      
+        &mdash;
+        <div class='inline'>
+<p>List of Nagios contacts for notifications.</p>
 </div>
       
     </li>
@@ -299,10 +371,6 @@
         <pre class="lines">
 
 
-22
-23
-24
-25
 26
 27
 28
@@ -336,10 +404,20 @@
 56
 57
 58
-59</pre>
+59
+60
+61
+62
+63
+64
+65
+66
+67
+68
+69</pre>
       </td>
       <td>
-        <pre class="code"><span class="info file"># File 'manifests/params.pp', line 22</span>
+        <pre class="code"><span class="info file"># File 'manifests/params.pp', line 26</span>
 
 class confdroid_ntp::params (
 
@@ -357,6 +435,12 @@ class confdroid_ntp::params (
   String $cy_leapsectz        = &#39;right/UTC&#39;,
   String $cy_loginfo          = &#39;measurements statistics tracking&#39;,
 
+# monitoring
+  Boolean $cy_manage_nagios   = false,
+  String $cy_procs_allowed    = &#39;1&#39;,
+  String $cy_target_service   = &#39;/etc/nagios/conf.d/chronyd_service.cfg&#39;,
+  Array $cy_target_contacts   = [&#39;admin&#39;],
+
 ) {
 # facts
   $fqdn                       = $facts[&#39;networking&#39;][&#39;fqdn&#39;]