diff --git a/Sio2/CYBER/10-Nagios/cgi.cfg b/Sio2/CYBER/10-Nagios/cgi.cfg
index 593c1a0..783e042 100644
--- a/Sio2/CYBER/10-Nagios/cgi.cfg
+++ b/Sio2/CYBER/10-Nagios/cgi.cfg
@@ -73,7 +73,7 @@ use_pending_states=1
 # authentication (bad idea), while any other value will make them
 # use the authentication functions (the default).
 
-use_authentication=0
+use_authentication=1
 
 
 
diff --git a/Sio2/CYBER/10-Nagios/localhost.cfg b/Sio2/CYBER/10-Nagios/localhost.cfg
index c25001b..a4f10f5 100644
--- a/Sio2/CYBER/10-Nagios/localhost.cfg
+++ b/Sio2/CYBER/10-Nagios/localhost.cfg
@@ -42,7 +42,7 @@ define hostgroup {
 
     hostgroup_name          linux-servers           ; The name of the hostgroup
     alias                   Linux Servers           ; Long name of the group
-    members                 localhost, srv, gwsio5               ; Comma separated list of hosts that belong to this group
+    members                 localhost, srv, gwsio5, ns               ; Comma separated list of hosts that belong to this group
 }
 
 
@@ -58,9 +58,11 @@ define hostgroup {
 define service {
 
     use                     local-service           ; Name of service template to use
-    host_name               localhost
+    hostgroup_name          linux-servers
     service_description     PING
     check_command           check_ping!100.0,20%!500.0,60%
+    notifications_enabled   1
+
 }
 
 
@@ -142,7 +144,7 @@ define service {
     hostgroup_name	    linux-servers	
     service_description     SSH
     check_command           check_ssh
-    notifications_enabled   0
+    notifications_enabled   1
 }
 
 
@@ -153,9 +155,34 @@ define service {
 define service {
 
     use                     local-service           ; Name of service template to use
-    host_name               localhost
+    #host_name               localhost
     hostgroup_name          linux-servers
     service_description     HTTP
     check_command           check_http
-    notifications_enabled   0
+    notifications_enabled   1
 }
+
+
+define service {
+
+    use                     generic-service   ;Use generic-service template
+    hostgroup_name          linux-servers     ; S'applique au groupe en question
+    service_description     chk-lin-load ; Nom du service
+    check_command           check_lin_load!public!--v2c!netsl!3,2,2!3,2,2 ; Command
+}
+
+define service {
+
+    use                     generic-service   ;Use generic-service template
+    hostgroup_name          linux-servers     ; S'applique au groupe en question
+    service_description     chk-lin-mem ; Nom du service
+    check_command           check_lin_mem!public!--v2c!70%,80%!90%,95% ; Command
+}
+
+
+define service{
+        use                             generic-service
+        hostgroup_name                  linux-servers
+        service_description             chk-dns-ext
+        check_command                   check_dns_ext
+        }
diff --git a/Sio2/CYBER/10-Nagios/nagios.cfg b/Sio2/CYBER/10-Nagios/nagios.cfg
index bf74c7a..153f634 100644
--- a/Sio2/CYBER/10-Nagios/nagios.cfg
+++ b/Sio2/CYBER/10-Nagios/nagios.cfg
@@ -46,6 +46,7 @@ cfg_file=/etc/nagios4/objects/templates.cfg
 cfg_file=/etc/nagios4/objects/localhost.cfg
 cfg_file=/etc/nagios4/objects/srv.cfg
 cfg_file=/etc/nagios4/objects/gwsio5.cfg
+cfg_file=/etc/nagios4/objects/ns.cfg
 # Definitions for monitoring a Windows machine
 #cfg_file=/etc/nagios4/objects/windows.cfg