MONITORING - Configuration du monitoring RPS
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Introduction
Article "bloc-note" sur la mise en place du monitoring de rps.pedrono.fr
Objectifs
Monitoring de services:
- monitorer le service "ssh"
- monitorer le service "http"
- monitorer le service "ftp"
Monitoring NRPE:
- monitorer la queue de mail (détection d'utilisation frauduleuse du smtp)
- monitorer le remplissage de /
- monitorer le remplissage de /home (sites web)
- monitorer les utilisateurs connectés
- monitorer la charge système
- monitorer le serveur SQL, inaccessible de l'extérieur
Configuration
Référence documentaire
Monitorer le RPS
Sur Corni, édition de /usr/local/nagios/etc/nagios.cfg:
... # Definitions for monitoring the RPS server cfg_file=/usr/local/nagios/etc/objects/rps.cfg ...
Sur Corni, création d'un fichier de config pour serveur Linux:
jules@corni:/usr/local/nagios/etc$ sudo cp objects/localhost.cfg objects/rps.cfg
Adaptation de la configuration, déclaration du serveur, édition de /usr/local/nagios/etc/objects/rps.cfg:
define host{
use linux-server
host_name rps
alias rps.pedrono.fr
address 87.98.167.215
}
define hostgroup{
hostgroup_name serveur_prod
alias Serveurs de production
members rps
}
Adaptation de la configuration, déclaration des services, édition de /usr/local/nagios/etc/objects/rps.cfg:
define service{
use generic-service
host_name rps
service_description PING
check_command check_ping!100.0,20%!500.0,60%
}
define service{
use generic-service
host_name rps
service_description Check du slash
check_command check_nrpe!check_slash
}
define service{
use generic-service
host_name rps
service_description Check du home
check_command check_nrpe!check_home
}
define service{
use generic-service
host_name rps
service_description Utilisateurs Connectés
check_command check_nrpe!check_users
}
define service{
use generic-service
host_name rps
service_description Nombre de processus
check_command check_nrpe!check_total_procs
}
define service{
use generic-service
host_name rps
service_description Charge systeme
check_command check_nrpe!check_load
}
define service{
use generic-service
host_name rps
service_description Postfix queue
check_command check_nrpe!check_mailq
}
define service{
use generic-service
host_name rps
service_description MYSQL
check_command check_nrpe!check_mysql
}
define service{
use generic-service
host_name rps
service_description SSH
check_command check_ssh
}
define service{
use generic-service
host_name rps
service_description HTTP
check_command check_http
}
define service{
use generic-service
host_name rps
service_description FTP
check_command check_ftp
}
Définition de la commande "check_nrpe", édition de /usr/local/nagios/etc/objects/commands.cfg:
# 'check_nrpe' command definition
define command{
command_name check_nrpe
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
Vérification de la validité de la configuration:
jules@corni:/usr/local/nagios/etc$ sudo /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg Nagios 3.0.6 Copyright (c) 1999-2008 Ethan Galstad (http://www.nagios.org) Last Modified: 12-01-2008 License: GPL Reading configuration data... Running pre-flight check on configuration data... Checking services... Checked 18 services. Checking hosts... Checked 2 hosts. Checking host groups... Checked 2 host groups. Checking service groups... Checked 0 service groups. Checking contacts... Checked 2 contacts. Checking contact groups... Checked 1 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 25 commands. Checking time periods... Checked 5 time periods. 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 OK Things look okay - No serious problems were detected during the pre-flight check jules@corni:/usr/local/nagios/etc$
Prise en compte de la configuration:
jules@corni:/usr/local/nagios/etc$ sudo /etc/init.d/nagios reload
