[Nagiosplug-help] NRPE Not Responding

[Andreas Ericsson]

Mark Limburg wrote:
> Morning List,
> 
> Okay, will try to define as much information here and with luck, I can get
> this working before I have to release this into deployment end of business
> today! Ahh, the joys of deadlines.
> 
> Two boxes .. Nagios 2.04 up and running (and performing very well) on the
> central monitoring box, and NRPE sitting on my test box. Have two versions
> of NRPE on there, with and without SSL as I was having the often-reported
> issues with SSL Handshaking. So for now, and because the environment is a
> closed environment, I'm testing witht he non-ssl builds of NRPE and
> CHECK_NRPE. NRPE is currently in standalone mode. Copied the usual range of
> local check commands to the NRPE box, and tested them locally .. all
> working.
> 
> Here's the issue ..
> 
> bash-2.05$ ./check_nrpe_nossl -H ADL0808 -p 5666 -c check_users
> CHECK_NRPE: Received 0 bytes from daemon. Check the remote server logs for
> error messages.
> 
> Can't find a logfile for NRPE.
> 

It logs to the server's syslog. If you don't know where it's at you're 
on your own.

> Used ./check_tcp on 5666 and the port is there and listening.
> 
> Checked the config file, and it looks fine ..
> 
> command[check_users]=/apps/nagios/nrpe/libexec/check_users -w 5 -c 10
> 

What about allowed_hosts? This is almost always the problem with this 
particular error message.

> I'm running out of ideas here, quickly. Anyone able to shed some light here?
> 

RTFM and act accordingly. It usually helps.

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