snmpd.conf

exec .1.3.6.1.4.1.2021.555.1 cat /bin/cat /backup/export_full/export_full.exit_status
exec .1.3.6.1.4.1.2021.555.2 cat /bin/cat /backup/export_dos/export_dos.exit_status
exec .1.3.6.1.4.1.2021.555.3 cat /bin/cat /backup/export_full_DB/export_full_DB.exit_status
exec .1.3.6.1.4.1.2021.555.4 cat /bin/cat /backup/export_tres/exportTRES.exit_status

check_snmp_exit_status.pl

#!/usr/bin/perl
use Net::SNMP;
$oid = $ARGV[1];
 
$snmpv3_username = "nagios";    # SNMPv3 username
$snmpv3_password = "ClaV3RfsTtD2"; # SNMPv3 password
$snmpv3_authprotocol = "md5";          # SNMPv3 hash algorithm (md5 / sha)
$snmpv3_privpassword = "";             # SNMPv3 hash algorithm (md5 / sha)
$snmpv3_privprotocol = "des";          # SNMPv3 encryption protocol (des / aes / aes128)
$version = "3";
$timeout = "2";
$hostname = $ARGV[0];
# Crear la sesion SNMP
        ($s, $e) = Net::SNMP->session(
                -username       =>  $snmpv3_username,
                -authpassword   =>  $snmpv3_password,
                -authprotocol   =>  $snmpv3_authprotocol,
                -hostname       =>  $hostname,
                -version        =>  $version,
                -timeout        =>  $timeout,
        );
        if ($s){
        } else {
            print "CRITICAL - El agente no responde, SNMP v3 ($e)\n";
            exit(2);
        }
    $s->get_request($oid);
        foreach ($s->var_bind_names()) {
            $oid_consulta   = $s->var_bind_list()->{$_};
        }
$s->close();
 
if($oid_consulta == 0) {
    print "OK - El exit status es ".$oid_consulta."\n";
    exit 0;
} else {
    print "CRITICAL - El exit status es ".$oid_consulta."\n";
    exit 2;
}

Configuración de comando en Nagios

define service {
	host_name                      	srvblabla
	service_description            	Control de exit status de backup
	use                            	linux-service
	check_command                  	check_snmp_cat_file_exit_status!.1.3.6.1.4.1.2021.555.1.101.1
	check_interval                 	240
	notification_interval          	300
}

Script simple para chequear el estado de HeartBeat y sus nodos, muy útil por cierto

check_heartbeat

#!/bin/bash
# Author: Emmanuel Bretelle
# Date: 12/03/2010
# Description: Retrieve Linux HA cluster status using cl_status
# Based on http://www.randombugs.com/linux/howto-monitor-linux-heartbeat-snmp.html 
#
# Autor: Stanila Constantin Adrian
# Date: 20/03/2009
# Description: Check the number of active heartbeats
# http://www.randombugs.com
 
# Get program path
REVISION=1.3
PROGNAME=`/bin/basename $0`
PROGPATH=`echo $0 | /bin/sed -e 's,[\\/][^\\/][^\\/]*$,,'`
 
NODE_NAME=`uname -n`
CL_ST='/usr/bin/cl_status'
 
#nagios error codes
#. $PROGPATH/utils.sh 
OK=0
WARNING=1
CRITICAL=2
UNKNOWN=3
 
usage () {
    echo "\
Nagios plugin to heartbeat.
 
Usage:
  $PROGNAME 
  $PROGNAME [--help | -h]
  $PROGNAME [--version | -v]
 
Options:
  --help -l	Print this help information
  --version -v  Print version of plugin
"
}
 
help () {
    print_revision $PROGNAME $REVISION
    echo; usage; echo; support
}
 
 
while test -n "$1"
do
  case "$1" in
    --help | -h)
      help
      exit $STATE_OK;;
    --version | -v)
      print_revision $PROGNAME $REVISION
      exit $STATE_OK;;
#    -H)
#      shift
#      HOST=$1;;
#    -C)
#      shift
#      COMMUNITY=$1;;
    *)
      echo "Heartbeat UNKNOWN: Wrong command usage"; exit $UNKNOWN;;
  esac
  shift
done
 
$CL_ST hbstatus > /dev/null
res=$?
if [ $res -ne 0 ]
then
  echo "Heartbeat CRITICAL: Heartbeat is not running on this node"
  exit $CRITICAL
fi
 
declare -i I=0
declare -i A=0
NODES=`$CL_ST listnodes`
 
for node in $NODES
do
  status=`$CL_ST nodestatus $node`
  let I=$I+1
  if [ $status == "active" ]
  then
    let A=$A+1
  fi
done
 
if [ $A -eq 0 ]
then
  echo "Heartbeat CRITICAL: $A/$I"
  exit $CRITICAL
elif [ $A -ne $I ]
then
  echo "Heartbeat WARNING: $A/$I"
  exit $WARNING
else
  echo "Heartbeat OK: $A/$I"
  exit $OK
fi
</code>
 
<code>
define command {
 command_name    check_ha_by_ssh
 command_line    $USER1$/check_by_ssh -l root -H $HOSTADDRESS$ -C "/usr/local/sbin/check_heartbeat.sh"
}

Script para chequear que nuestras imágenes estén actualizadas a la fecha

check_systemimager

#!/usr/bin/php -q
# Sergio Cayuqueo <cayu@cayu.com.ar>
# http://cayu.com.ar
<?php
$lista_imagenes = shell_exec("si_lsimage --verbose|grep Image");
$lista_imagenes = preg_split("/[\n]+/",$lista_imagenes);
$fecha_actual = date('Y.m.d');
foreach($lista_imagenes as $imagen) {
    if(strlen($imagen)>0) {
	if(@!$i) {
	    $i=1;
	}
	$imagen = preg_split("/[\s]+/",$imagen);
	$imagenes[$i]['nombre'] = $imagen[2];
	$imagenes[$i]['actualizada'] = $imagen[4];
	$imagenes[$i]['ip'] = $imagen[8];
	if($imagen[4] == $fecha_actual) {
	    $imagenes[$i]['estado'] = "ok" ;
	} else {
	    $imagenes[$i]['estado'] = "critical" ;
            $critical=1;
	}
	$i++;
    }
}
 
if(@$critical) {
    $head = "CRITICAL - Hubo un desfasaje en una o mas imagenes\n";
    $exit = 2;
} else {
    $head = "OK - Todas las imagenes actualizadas a la fecha\n";
    $exit = 0;
}
print $head;
foreach($imagenes as $imagen) {
    if(strlen($imagen['nombre'])<9) {
	$tab = "\t\t";
    } else {
	$tab = "\t";
    }
    if($imagen['estado'] == "ok") {
	print "OK - ".$imagen['nombre']." ".$tab.$imagen['ip']."\n";
    } else {
        print "CRITICAL - ".$imagen['nombre']."   ".$tab.$imagen['ip']." \t actualizado a : ".$imagen['actualizada']."\n";
    }
}
exit($exit);
?>

define command {
 command_name    check_si_by_ssh
 command_line    $USER1$/check_by_ssh -l root -H $HOSTADDRESS$ -C "/usr/local/sbin/check_systemimager.php"
}