NRPE no output returned from plugin

[John R. Daily]

I love NRPE because, unlike the Nagios daemon, it provides robust  
debugging output.  Turn on debugging in your nrpe.cfg and set up  
syslog to dump it somewhere.  (I refer *.debug to /var/log/debug.log.)

Of course, you may not be talking to NRPE at all, in which case the  
above won't do much other than limit the scope of your enquiry.

Make sure that both sides agree on whether you're using encryption or  
not.

-John


On Aug 4, 2006, at 5:05 PM, Tom Trelvik wrote:

> So I'm having a bit of trouble setting up NRPE for the first time.
> I'm fairly certain things are working as intended on the remote host
> because from the Nagios system I can do this:
>
> $ /usr/lib/nagios/plugins/check_nrpe -H my.host.name -c  
> check_disk_root
> DISK OK - free space: / 14843 MB (50%);|
>
> But when Nagios attempts to check this, it reports "(No output
> returned from plugin)".
>
> In my services.cfg file, I'm trying to use this service (copied from
> other working services that only specify the "use", "host_name",
> "service_description" and "check_command" lines):
>
> define service{
>     use             generic-service
>     host_name           my.host.name
>     service_description     / Free Space
>     max_check_attempts      3
>     normal_check_interval       5
>     retry_check_interval        1
>     check_command           check_nrpe!check_disk_root
>     }
>
> Nagios is running on an updated debian box with everything installed
> via apt, but the remote system is running Red Hat Enterprise Linux 3,
> and had NRPE and its dependencies installed via rpm.
>
> Any suggestions for how I should go about troubleshooting something  
> like this?
>
> I'd really appreciate any pointers that come to mind!  Thanks!
>
> Tom
>
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