Wrong results from NRPE

[Andreas Ericsson]

Don't respond to me privately. I don't run a free support center.

Don't top-post. It makes it hard to read the conversation and understand
what you're responding to.

Follow these two advices, or you'll end up in my kill-file.

Now scroll down for the interesting parts.

Jorge Gonzalez wrote:
> Hi Andreas!
> 
> As nagios user:
> 
> -sh-3.1$ ./check_nrpe -H 127.0.0.1 -c check_xen
> Critical Xen VMs Usage - Total NB: 0 - detected VMs:
> 
> As root user:
> 
> [root at jano plugins]#  ./check_nrpe -H 127.0.0.1 -c check_xen
> Critical Xen VMs Usage - Total NB: 0 - detected VMs:
> 

Which user you're running check_nrpe as hasn't got the slightest impact
on the result you get from check_xen, as it's the nrpe daemon that
executes check_xen.

> NRPE runs with xinetd:
> # default: off
> # description: NRPE (Nagios Remote Plugin Executor)
> service nrpe
> {
>        flags           = REUSE
>        type            = UNLISTED
>        port            = 5666
>        socket_type     = stream
>        wait            = no
>        user            = nagios
>        group           = nagios
>        server          = /usr/sbin/nrpe
>        server_args     = -c /etc/nagios/nrpe.cfg --inetd
>        log_on_failure  += USERID
>        disable         = no
>        only_from       = 0.0.0.0/0
> }
> 
> 
> NRPE running as a service, no xinetd:
> 
> As root:
> 

nrpe doesn't run as root. It will bail out if you try to make it.

> [root at jano plugins]#  ./check_nrpe -H 127.0.0.1 -c check_xen
> Critical Xen VMs Usage - Total NB: 0 - detected VMs:
> 
> 
> As nagios:
> 
> -sh-3.1$ ./check_nrpe -H 127.0.0.1 -c check_xen
> Critical Xen VMs Usage - Total NB: 0 - detected VMs:
> 

You have permission problems. Don't bother trying to run check_nrpe as
a specific user. It won't matter in the slightest. Try running check_xen
directly as the nagios user instead. That might show you what the real
problem is.

-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Tel: +46 8-230225                  Fax: +46 8-230231

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