[Nagiosplug-help] NRPE Problem

[Jean-Sebastien Pilon]

Run 

openssl dhparam -C 512

Then restart nrpe


> -----Original Message-----
> From: Andrew [mailto:aburns at premtech.com] 
> Sent: Tuesday, February 27, 2007 5:05 PM
> To: Jean-Sebastien Pilon
> Cc: nagiosplug-help at lists.sourceforge.net
> Subject: Re: [Nagiosplug-help] NRPE Problem
> 
> I'm sorry, I didn't specify that. Yes I have. Here's some 
> output lines:
> 
>  From the CentOS server with an NRPE daemon running:
> 
> CentOS-2:/usr/local/nagios/libexec# ./check_nrpe -H 10.1.5.10 -n -p  
> 5666 -c check_disk1
> NRPE: Unable to read output
> CentOS-2:/usr/local/nagios/libexec# ./check_nrpe -H 10.1.5.10 -n -c  
> check_disk1
> NRPE: Unable to read output
> CentOS-2:/usr/local/nagios/libexec# ./check_nrpe -H 10.1.5.10 -n
> NRPE v2.7
> 
>  From the CentOS server with the core Nagios processes running:
> 
> [root at CentOS-1 nagios]# /usr/bin/nagios -v /etc/nagios/nagios.cfg
> 
> Nagios 2.7
> Copyright (c) 1999-2007 Ethan Galstad (http://www.nagios.org)
> Last Modified: 01-19-2007
> License: GPL
> 
> Reading configuration data...
> 
> Running pre-flight check on configuration data...
> 
> Checking services...
>          Checked 27 services.
> Checking hosts...
>          Checked 7 hosts.
> Checking host groups...
>          Checked 1 host groups.
> Checking service groups...
>          Checked 0 service groups.
> Checking contacts...
>          Checked 2 contacts.
> Checking contact groups...
>          Checked 2 contact groups.
> Checking service escalations...
>          Checked 0 service escalations.
> Checking service dependencies...
>          Checked 0 service dependencies.
> Checking host escalations...
>          Checked 0 host escalations.
> Checking host dependencies...
>          Checked 0 host dependencies.
> Checking commands...
>          Checked 31 commands.
> Checking time periods...
>          Checked 4 time periods.
> Checking extended host info definitions...
>          Checked 0 extended host info definitions.
> Checking extended service info definitions...
>          Checked 0 extended service info definitions.
> Checking for circular paths between hosts...
> Checking for circular host and service dependencies...
> Checking global event handlers...
> Checking obsessive compulsive processor commands...
> Checking misc settings...
> 
> Total Warnings: 0
> Total Errors:   0
> 
> Things look okay - No serious problems were detected during the pre- 
> flight check
> [root at CentOS-1 nagios]#
> 
> [root at CentOS-1 nagios]# /usr/lib/nagios/plugins/check_nrpe -H  
> 10.1.5.10 -n -p 5666 -c check_disk1
> NRPE: Unable to read output
> [root at CentOS-1 nagios]# /usr/lib/nagios/plugins/check_nrpe -H  
> 10.1.5.10 -n -c check_disk1
> NRPE: Unable to read output
> [root at CentOS-1 nagios]# /usr/lib/nagios/plugins/check_nrpe -H  
> 10.1.5.10 -n
> NRPE v2.7
> 
>  From the RHEL4 server with NRPE running:
> 
> [root at RHEL4-1 nagios]# /usr/local/nagios/libexec/check_disk 
> -w 20% -c  
> 10% -p /
> DISK OK - free space: / 18231 MB (97% inode=97%);| /=457MB; 
> 15750;17719;0;19688
> [root at RHEL4-1 nagios]# /usr/local/nagios/libexec/check_users 
> -w 5 -c 10
> USERS OK - 2 users currently logged in |users=2;5;10;0
> 
> I'm stumped. I don't see anything in any of the log files indicating  
> what the output is nor what the problem is.
> 
> Any help is appreciated.
> 
> Thanks,
> 
> Andy
> 
> 
> On Feb 27, 2007, at 3:55 PM, Jean-Sebastien Pilon wrote:
> 
> > Have you tried running the check command locally on the Red hat  
> > machine
> > ?
> >
> >> Hi,
> >>
> >> I've installed NRPE on a couple machines (CentOS, Debian, and now
> >> RHEL4) along with my Primary Nagios installation on a 
> CentOS server.
> >> All of the NRPE installations went fine with the exception of the
> >> RHEL4 install.
> >> I installed from source, and for some reason every time any remote
> >> server attempts to access the NRPE daemon running on the machine, I
> >> get the following error: "NRPE: Unable to read output".
> >>
> >> I've made sure that I can connect to the RHEL4 server on port 5666,
> >> the NRPE daemon is running and allowing connections from the CentOS
> >> Server, neither the of the servers are attempting to use SSL,
> >> and the
> >> CentOS server can tell what version of NRPE is running on 
> the RHEL4.
> >>
> >> Does anyone have any suggestions, tips, or ideas on how I 
> can better
> >> troubleshoot this situation?
> >>
> >> Thanks,
> >>
> >> Andy
> >>
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