No output returned from plugin

[Hendrik Baecker]

Olivier Mugabonake schrieb:

>Thanks for your reply
>
>  
>
>>>Did you try this as the User under which is Nagios running? Or just as root?
>>>      
>>>
>
>I did so just as root not as nagios user
>
>  
>
>>>I hope you don't try to insert "/usr/nagios/libexec/check_nrpe -H
>>>      
>>>
>remoteHost -c >>check_disk1" as check_command in your services.cfg...
>
>I defined the command above in the checkcommands.cfg file, in
>servece.cfg file I just gave the the name of the command
>
>To be more explicit here is a part of my services.cfg file :
>
>        host_name                            mx1srv3
>        check_command                   check_disk_mx1srv3
>
>And this is the concerned part of my checkcommand.cfg file
>
>define command{
>        command_name    check_disk_mx1srv3
>        command_line    /usr/nagios/libexec/check_nrpe -H mx1srv3 -c
>check_disk1 -w 25% -c 15%
>        }
>  
>
Looks not so bad, but:

Is your NRPE Daemon on the other side configured to handle Arguments?

Your command definition gives the arguments -w 25% and -c 15%.

First of all, you should have a look at the nrpe.cfg on the remote host 
and check the command_names.

If you want to give the warning and critical thresholds from your 
checkcommands.cfg through nrpe to your nrpe Daemon on the other side you 
have to allow the nrpe daemon to handle with arguments (This ist not 
recommend because of security reasons!!!)

If you even want this your checkcommand has to be such: check_nrpe -H 
mx1srv3 -c check_disk1 -a 25 [SPACE] 15 and the command_name on the 
remote nrpe.cfg has to interpret these args as $ARG1$ $ARG2$ and so on...

If have enabled the argument parsing of nrpe and it just won't work, 
have a look about the '%' Chars... I am not sure if you have to tell him 
this chars. Just try the values 25 and 15 instead of 25% and 15%...

Another chance is to enable the debug at your nrpe daemon (nrpe.cfg 
debug=1) and have a look at your system log when nagios connects to.

>I also set the specified permissions on the external command file
>(/var/nagios/rw )
>(it belongs to nagios and apache users)
>
>Hope my problem is more clear I'll send you any other information you need.
>Thanks
>
>
>On Apr 11, 2005 12:36 PM, Hendrik Baecker <b00mer at gmx.net> wrote:
>  
>
>>Olivier Mugabonake schrieb:
>>
>>    
>>
>>>Hello there,
>>>
>>>I 'm running nagios 1.2 on a linux gentoo.
>>>I would like to monitor hosts other than where nagios is intalled.
>>>when I run this
>>>nagios-server etc # /usr/nagios/libexec/check_nrpe -H remoteHost -c check_disk1
>>>
>>>I receive the right status of disks on remoteHost.
>>>
>>>
>>>      
>>>
>>Did you try this as the User under which is Nagios running? Or just as root?
>>
>>    
>>
>>>My problem is this:
>>>when I define the above command in services config file to be
>>>automatically handled by nagios, I receive this status on my nagios
>>>web interface:"No output returned from plugin"
>>>
>>>
>>>
>>>      
>>>
>>I hope you don't try to insert
>>"/usr/nagios/libexec/check_nrpe -H remoteHost -c check_disk1"
>>as check_command in your services.cfg...
>>
>>Normaly you define your check_command "PATH/check_nrpe ARGS" in your
>>checkcommands.cfg with a nagios command_name like nrpe and this
>>command_name you should have in your service definition.
>>How did you do?
>>
>>Perhaps you can send the used parts out of your configs (services.cfg,
>>checkcommands.cfg)
>>
>>    
>>
>>>nrpe and nsca are running and correctly configured on nagios server
>>>and remoteHost.
>>>
>>>Please help me.
>>>
>>>
>>>      
>>>
>>...we will try...
>>
>>    
>>
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>>>::: Please include Nagios version, plugin version (-v) and OS when reporting any issue.
>>>::: Messages without supporting info will risk being sent to /dev/null
>>>
>>>
>>>
>>>
>>>      
>>>
>>Best regards,
>>Hendrik
>>
>>    
>>
><<
>
>
>  
>

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