Hi Juki, As I understand it, you can either (1) 'hard-code' your NRPE checks in the nrpe.cfg file on the monitored host (so that the checks are explicitly defined), or (2) set up NRPE on the monitored host in such a way that you can pass arguments in your NRPE checks. It looks like you're landing somewhere between the two with your configuration. I would either go the Option (1) way, having something like this in your nrpe.cfg file on the monitored host: command[check_root]=/usr/local/nagios/libexec/check_disk -w 30% -c 15% -p / command[check_var]=/usr/local/nagios/libexec/check_disk -w 30% -c 15% -p /var command[check_server1]=/usr/local/nagios/libexec/check_disk -w 30% -c 15% -p /var/opt/BGw/Server1 command[check_ora]=/usr/local/nagios/libexec/check_disk -w 30% -c 15% -p /var/opt/mediation/ora , and then having services on the nagios host like this: define service{ use generic-service ; Name of service template to use host_name emm4 service_description Root Partition check_command check_nrpe!check_root } Alternatively, for the Option (2) method, on the monitored host, in nrpe.cfg: command[check_disk]=/usr/local/nagios/libexec/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$ , and a service example on the nagios host: define service{ use generic-service ; Name of service template to use host_name emm4 service_description Root Partition check_command check_nrpe!check_disk!30!15!/ } I may not have the syntax in the 'check_command' of that last service exactly right, but that's the general idea. To go down the Option 2 road, you have to have configured the NRPE daemon on the monitored host with '--enable-command-args', and have to have a line in your nrpe.cfg file that says 'dont_blame_nrpe=1'. This is because allowing command arguments in this fashion can be a security risk. The default nrpe.cfg file has some comments that refer to this. HTH, Guy. <div class="gmail_quote">On Wed, Jul 15, 2009 at 7:24 AM, Juki <<a href="mailto:juki.emma@gmail.com">juki.emma@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hello again, Thanks for the tips so far. Now some responses; On the monitored host, I have setup nrpe.cfg and therein I have set the option "allowed_hosts=<IP of monitoring server>" and also revised the format as shown below; #specific commands# command[check_disk]=/usr/local/nagios/libexec/check_disk -w 30% -c 15% -p / -p /var -p /var/opt/BGw/Server1 -p /var/opt/mediation/ora command[check_swap]= /usr/local/nagios/libexec/check_swap -a -w 10% -c 5% command[check_procs]=/usr/local/nagios/libexec/check_procs -w 300 -c 400 command[check_ssh]=/usr/local/nagios/libexec/check_ssh -4 -t 10 -p 22 localhost command[check_ftp]=/usr/local/nagios/libexec/check_ftp -t 5 Then on the monitoring server, I have also setup the monitored host file (host.cfg) with the service description as follows; define service{ use generic-service ; Name of service template to use host_name emm4 service_description Root Partition check_command check_nrpe!check_disk!15%!10%! } After setting up all this, I refreshed the nrpe client on the monitored host and also restarted the nagios service on the monitoring server, this is after I checked that there were no errors whatsoever in the nagios configuration files. And yes, I logged into the monitored host as the nagios user and was able to verify that the check_nrpe command definition does run successfully. When I log into the nagios web GUI, I'm able to see the alerts, warnings and details for the check_swap, check_procs, check_ssh and for check_ftp. For the case of check_disk, I only see alerts/warnings and details only for the root (/) partition and NOT those for the /var, /var/opt/BGw/Server, /var/opt/mediation/ora. This is despite the fact that these partitions are defined in the nrpe.cfg file on the monitored host as shown above. This is still puzzling.... ------------------------------------------------------------------------------ Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: <a href="http://p.sf.net/sfu/Challenge" target="_blank">http://p.sf.net/sfu/Challenge</a> _______________________________________________ Nagios-users mailing list <a href="mailto:Nagios-users@lists.sourceforge.net">Nagios-users@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users" target="_blank">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null </blockquote></div>