Nagios Support Forum

Posted: **Thu Nov 30, 2017 6:10 am**

Hello all:
I'm having issues trying to configure this script "Monitoring Windows Disk Load" i have founded here: http://exchange.nagios.org/directory/Pl ... ad/details

Put the script in the NSClient++ scripts folder, preferably in a subfolder Powershell.
In the nsclient.ini configuration file, define the script like this:

check_ms_win_disk_load = cmd /c echo scripts\powershell\check_ms_win_disk_load.ps1 $ARG1$; exit $LastExitCode | powershell.exe /noprofile -command -

Make a command in Nagios like this:

check_ms_win_disk_load => $USER1$/check_nrpe -H $HOSTADDRESS$ -p 5666 -t 60 -c check_ms_win_disk_load $ARG1$

Configure your service in Nagios. Make use of the above created command. Configure something similar like this as $ARG1$:

-a '-dl C -ms 5 -rqw 20 -rqc 50'

i have created edited the nsclient++ file and restarted the service... here is where the output:

; A list of scripts available to run from the CheckExternalScripts module. Syntax is: <command>=<script> <arguments>
[/settings/external scripts/scripts]

check_ms_win_disk_load = cmd /c echo scripts\powershell\check_ms_win_disk_load.ps1 $ARG1$; exit $LastExitCode | powershell.exe /noprofile -command -

; A list of wrapped scripts (ie. scruts using a template mechanism). The template used will be defined by the extension of the script.
[/settings/external scripts/wrapped scripts]

check_ms_win_disk_load = check_ms_win_disk_load

when i run the script with PowerShell on the windows Machine, it works:

PS C:\Program Files\NSClient++\scripts\PowerShell> .\check_ms_win_disk_load.ps1
OK: Drive C: Avg of 2 samples: {Rate (Read: 0.00000MB/s)(Write: 0.08783MB/s)} {Avg Nr of (Reads: 0.00000r/s)(Writes: 3.99644w/s)} {Latency (Read: 0.00000ms)(Write: 0.51248ms)} {Queue Length (Read: 0.00000ql)(Write: 0.00204ql)} | 'Read_Latency'=0.00000ms 'Write_Latency'=0.51248ms 'Read_Queue'=0.00000ql 'Write_Queue'=0.00204ql 'Number_of_Reads'=0.00000r/s 'Number_of_Writes'=3.99644w/s 'Read_Rate'=0.00000MB/s 'Write_Rate'=0.08783MB/s

I have also added the command and service in Nagios

check_ms_win_disk_load => $USER1$/check_nrpe -H $HOSTADDRESS$ -p 5666 -t 60 -c check_ms_win_disk_load $ARG1$ $ARG2$

But when i run the command from Nagios or Command line, i have no output

[root@nagios libexec]# ./check_nrpe -H 172.X.X.X -p 5666 -t 60 -c check_ms_win_disk_load -dl C -ms 5 -rqw 20 -rqc 50
[root@nagios libexec]#

NsClient log on the windows machine only shows the following output

2017-11-30 08:04:01: error:c:\source\master\modules\CheckExternalScripts\CheckExternalScripts.cpp:541: Failed to find wrapping for type: none

Can anyone please assist?

thanks!

Posted: **Thu Nov 30, 2017 9:37 am**

Get rid of this section (specifically the check_ms_win_disk_load definition):

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; A list of wrapped scripts (ie. scruts using a template mechanism). The template used will be defined by the extension of the script.
[/settings/external scripts/wrapped scripts]

check_ms_win_disk_load = check_ms_win_disk_load

Restart the NSClient++ service, then try again.

The "wrapped scripts" functionality is to save you time from defining an executable for each individual script. It's not really applicable here unless you're using a non-native version of Powershell.

If I were running a bunch of PHP scripts within NSClient++, but didn't define any PHP paths in my Windows environment variables, I could leverage the "wrapped scripts" functionality to point all of my .php files at the necessary executable.

Or maybe I have Powershell scripts that need to run on a specific version with a specific cmdlet. I could leverage "wrapped scripts" to do that instead of mucking with the environment variables or including specific executable paths in each command definition.

Posted: **Thu Nov 30, 2017 11:46 am**

@lpereira, Also don't forget to wrap the arguments with -a ' ', check out the corrected command below:

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./check_nrpe -H 192.168.4.2 -p 5666 -t 60 -c check_ms_win_disk_load -a '-dl C -ms 5 -rqw 20 -rqc 50'

Posted: **Thu Nov 30, 2017 3:18 pm**

I modified as requested, but i still having no response from CLI

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; A list of scripts available to run from the CheckExternalScripts module. Syntax is: <command>=<script> <arguments>
[/settings/external scripts/scripts]

check_ms_win_disk_load = cmd /c echo scripts\powershell\check_ms_win_disk_load.ps1 $ARG1$; exit $LastExitCode | powershell.exe /noprofile -command -

; A list of wrapped scripts (ie. scruts using a template mechanism). The template used will be defined by the extension of the script.
[/settings/external scripts/wrapped scripts]

i have created also a subfolder called "powershell" and placed the script there. Still no response

Posted: **Thu Nov 30, 2017 4:57 pm**

@lpereira, Have you restarted NSClient service after you made those changes? Can you upload the whole nsclient.ini file here so that I could go over every setting?

Posted: **Fri Dec 01, 2017 5:59 am**

npolovenko wrote:@lpereira, Have you restarted NSClient service after you made those changes? Can you upload the whole nsclient.ini file here so that I could go over every setting?

@npolovenko here is the file

Posted: **Fri Dec 01, 2017 9:19 am**

I found what one issue was. for some reason the check_nrpe script was empty. i resoterd a backup and now is working.

BUT...

i'm facing a different issue now..

when i run the command from CLI like this, i got the following error

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[root@nagios libexec]# ./check_nrpe -H 17X.XXX.XXX -p 5666 -t 60 -c check_ms_win_disk_load -a '-dl C -ms 5 -rqw 20 -rqc 50' -n
Exception processing request: Request contained arguments (not currently allowed, check the allow arguments option).

But if i run it without arguments, i got the proper output

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[root@nagios libexec]# ./check_nrpe -H 17X.XXX.XXX -p 5666 -t 60 -c check_ms_win_disk_load -n
OK: Drive C: Avg of 2 samples: {Rate (Read: 0.00000MB/s)(Write: 0.08947MB/s)} {Avg Nr of (Reads: 0.00000r/s)(Writes: 12.81153w/s)} {Latency (Read: 0.00000ms)(Write: 0.49202ms)} {Queue Length (Read: 0.00000ql)(Write: 0.00621ql)} |'Read_Latency'=0ms 'Write_Latency'=0.49202ms 'Read_Queue'=0ql 'Write_Queue'=0.00621ql 'Number_of_Reads'=0r/s 'Number_of_Writes'=12.81153w/s 'Read_Rate'=0MB/s 'Write_Rate'=0.08946MB/s

Posted: **Fri Dec 01, 2017 10:17 am**

@lpereira, I made some changes in you nsclient.ini file to allow arguments. The file is in the attachment. Don't forget to replace the password field and allowed hosts field.
*Also, this file needs to be saved with .ini extension.

Posted: **Fri Dec 01, 2017 1:36 pm**

npolovenko wrote:@lpereira, I made some changes in you nsclient.ini file to allow arguments. The file is in the attachment. Don't forget to replace the password field and allowed hosts field.
*Also, this file needs to be saved with .ini extension.

Thanks, i have modified as requested, now i'm having this error

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[root@nagios libexec]# ./check_nrpe -H 17X.XXX.XXX -p 5666 -t 60 -c check_ms_win_disk_load -a '-dl D -ms 5 -rqw 20 -rqc 50' -n
CHECK_NRPE: Invalid packet type received from server.

Posted: **Fri Dec 01, 2017 2:51 pm**

@lpereira, In nsclient.ini file can you change:

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; COMMAND ALLOW NASTY META CHARS - This option determines whether or not the we will allow clients to specify nasty (as in |`&><'"\[]{}) characters in arguments.
allow nasty characters = 0

; COMMAND ARGUMENT PROCESSING - This option determines whether or not the we will allow clients to specify arguments to commands that are executed.
allow arguments = 0

To this:

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; COMMAND ALLOW NASTY META CHARS - This option determines whether or not the we will allow clients to specify nasty (as in |`&><'"\[]{}) characters in arguments.
allow nasty characters = 1

; COMMAND ARGUMENT PROCESSING - This option determines whether or not the we will allow clients to specify arguments to commands that are executed.
allow arguments = 1

After that please restart NSClient service and try to run the command:

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./check_nrpe -H 17X.XXX.XXX -p 5666 -t 60 -c check_ms_win_disk_load -a '-dl D -ms 5 -rqw 20 -rqc 50' -n

Notice that in your original you're attempting to check drive D. Please try the same with the drive C:

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./check_nrpe -H 17X.XXX.XXX -p 5666 -t 60 -c check_ms_win_disk_load -a '-dl C -ms 5 -rqw 20 -rqc 50' -n

Let us know if that fixed it.

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