For monitoring system parameters of a windows computer using NAGIOS or Icinga , the best tool available is NSClient++ ( Visit http://nsclient.org)
Here I demonstrate NSClient++ isntallation to monitor Windows Vista machine using NAGIOS installed on a Ubuntu server. Without NAGIOS or Icinga , NSclient++ is meaningless .
Step 1 : Download NSClient++ tool in your Windows PC . (http://files.nsclient.org/x-0.4.x/NSCP-0.4.0.183-Win32.msi is the latest one as of now. )
Step 2 : Install it . Type your NAGIOS server IP as allowed hosts . Also enable common check and NRPE server during installation .
Step 4: Make sure that in the [modules] section contains lines NRPEListener.dll , CheckExternalScripts.dll and some checks like CheckSystem.dll , CheckDisk.dll , CheckEventLog.dll , CheckHelpers.dll
My modules section is as follows:
Step 5: For NSClient++ version 0.4 , In the section [/settings/NRPE/server]
Add these lines.
allowed hosts=10.52.2.41(This is my NAGIOS server IP , give yours here!)
allow nasty characters=1
For NSClient++ version 0.3 , In the section [NRPE]
Uncomment these options .
Step 6: Go to Run and type services.msc . Find the NSClient++ service and restart that .
Now we have finished the configuration in Windows machine . Now in the ubuntu machine running nagios , try to get the NRPE check statuses in the command line . If it is working fine , we will add services in NAGIOS .
Step 1 : Check whether you installed nagios-nrpe-plugin . If not , install it . You can use the command "dpkg -L nagios-nrpe-plugin " to check it .
Step 2 . Now try to get some status from the windows machine(IP address is 10.52.20.3 ) by command
"/usr/lib/nagios/plugins/check_nrpe -H 10.52.20.3 -c alias_cpu" . If this gives
OK CPU Load ok.|'5m'=4%;80;90 '1m'=5%;80;90 '30s'=5%;80;90 as the output, you configured NSClient++ properly .
If not working please check whether the port you mentioned is not blocked .
Step 3 : If working , you can add the commands to NAGIOS .
For the host you want to monitor , add a service .
use generic-service ; Name of service template to use
service_description Drive Usage