Voir la source de MONITORING - Configuration du monitoring RPS

= 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 ==

[http://nagios.sourceforge.net/docs/3_0/monitoring-linux.html Monitorer des hôtes Linux]

== 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             '''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



[[Category:Monitoring]]
[[Category:Securite]]
[[Category:Howto]]