diff --git a/sio2/sisr2/20-Nagios/nagios.cfg b/sio2/sisr2/20-Nagios/nagios.cfg
new file mode 100644
index 0000000..e88fb21
--- /dev/null
+++ b/sio2/sisr2/20-Nagios/nagios.cfg
@@ -0,0 +1,12 @@
+# You can specify individual object config files as shown below:
+cfg_file=/etc/nagios4/objects/commands.cfg
+cfg_file=/etc/nagios4/objects/contacts.cfg
+cfg_file=/etc/nagios4/objects/timeperiods.cfg
+cfg_file=/etc/nagios4/objects/templates.cfg
+
+# Definitions for monitoring the local (Linux) host
+cfg_file=/etc/nagios4/objects/localhost.cfg
+cfg_file=/etc/nagios4/objects/srv.cfg
+cfg_file=/etc/nagios4/objects/gwsio.cfg
+# Definitions for monitoring a Windows machine
+#cfg_file=/etc/nagios4/objects/windows.cfg