CHECK_NRPE: Error - Could not complete SSL handshake

[Jan Scholten]

Figueroa, Daniel wrote:
> I'm unable to execute as a test from my SUSE 9.2 Nagios server -
> 
>  [root at Z3 root]# /usr/local/nagios/libexec/check_nrpe -H HPUX_srvr -c check_load
>>>I'm receiving the following error and can use your help in understanding why?
> CHECK_NRPE: Error - Could not complete SSL handshake

You need the same openssl libs (ssllib and sslib-devel. try running 
check_nrpe --help on the server and nrpe --help on the client. both need 
to show the same last line e.g.

NRPE Plugin for Nagios
Copyright (c) 1999-2003 Ethan Galstad (nagios at nagios.org)
Version: 2.0
Last Modified: 09-08-2003
License: GPL with exemptions (-l for more info)
SSL/TLS Available: Anonymous DH Mode, OpenSSL 0.9.6 or higher required

Try enabling verbose mode for nrpe (restart nrpe server afterwards) and 
check the logfiles.


> 
> I was told I have to be up-to-date on plugins, which I am -
> 
> Note: The HPUX_srvr is a HP-UX 10.20 running nrpe-1.8-B.10.20.depot.  The Nagios server is
> using the latest "Nagios Plugins HP-UX" from NagiosExchange.org, such as check_load.
> 
> On the HPUX_srvr box, I've configured the inetd.conf file to launch - 
> 
> nrpe   stream tcp nowait rose /usr/sbin/tcpd /usr/local/nagios/bin/nrpe -c /usr/ local/nagios/bin/nrpe.cfg
> 
> Doing a netstat on my HPUX box, I can see the service is listening, per /etc/service configuration.
> 
> tcp        0      0  *.nrpe                 *.*                    LISTEN
> 
> # The following are my entries in the nrpe.cfg file::  
> command[check_users]=@libexecdir@/check_users -w 5 -c 10
> command[check_load]=@libexecdir@/check_load -w 15,10,5 -c 30,25,20
> command[check_disk1]=@libexecdir@/check_disk -w 20 -c 10 -p /dev/hda1
> command[check_disk2]=@libexecdir@/check_disk -w 20 -c 10 -p /dev/hdb1
> command[check_zombie_procs]=@libexecdir@/check_procs -w 5 -c 10 -s Z
> command[check_total_procs]=@libexecdir@/check_procs -w 150 -c 200
> 
> 
>>>How does @libexecdir@ know where my check_users lives?

No idea! in my nrpe_local.cfg (Debian) i have the full pathname.. maybe 
you should change that to the full path!

Jan


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