Nagios
Contents
Monitoring met Nagios
Uwork opzet
Nagios kent een hierarchische organisatie en laat met de parameter cfg_dir toe dat Uwork de configuratiebestanden voor de klant in verschillende directories vastlegt, telkens met de naam <domein>.cfg. Voor elke klant is zo'n configuratiebestand aanwezig in elk van de volgende directories:
- hostgroups
- hosts
- services
Het primaire nagios configuratiebestand /etc/nagios/nagios.cfg refereert aan deze directories:
cfg_dir=/etc/nagios/hostgroups/ cfg_dir=/etc/nagios/hosts/ cfg_dir=/etc/nagios/services/
Bijzondere commando's staan in de driectory /etc/nagios/commands/.
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Hostgroups
#
# hostgroups.cfg - Config file for Nagios (www.nagios.org)
#
define hostgroup {
hostgroup_name <domein>
alias <domein>
name <domein>
contact_groups router-admins
register 1
members dom0.<domein>,ips-vpn.<domein>,smb.<domein>,mail.<domein>
}
Hosts
define host{
use generic-host ; Name of host template to use
host_name dom0.<domein>
alias dom0.<domein>
address 10.x.y.z
check_command check-host-alive
max_check_attempts 20
notification_interval 60
notification_period 24x7
notification_options d,u,r
}
define host{
use generic-host ; Name of host template to use
host_name ips-vpn.<domein>
alias ips-vpn.<domein>
address a.b.c.d
check_command check-ssh
max_check_attempts 20
notification_interval 60
notification_period 24x7
notification_options d,u,r
}
define host{
use generic-host ; Name of host template to use
host_name smb.<domein>
alias smb.<domein>
address 10.x.y.11
check_command check-host-alive
max_check_attempts 20
notification_interval 60
notification_period 24x7
notification_options d,u,r
}
define host{
use generic-host ; Name of host template to use
host_name mail.<domein>
alias mail.<domein>
address 10.x.y.12
check_command check-host-alive
max_check_attempts 20
notification_interval 60
notification_period 24x7
notification_options d,u,r
}
Services
define service {
host_name dom0.<domein>,ips-vpn.<domein>,smb.<domein>,mail.<domein>
service_description ssh
check_command check_ssh
name ssh
register 1
max_check_attempts 3
normal_check_interval 5
retry_check_interval 1
active_checks_enabled 1
check_period 24x7
notification_interval 120
notification_period 24x7
notification_options w,u,c,r
notifications_enabled 1
contact_groups admins
}
define service {
host_name smb.<domein>
service_description check_ldap
use generic-service
check_command check_ldap!-H $hOSTADDRESS$ -b "cn=admin,dc=<domein>"
name ldap
register 1
max_check_attempts 3
normal_check_interval 5
retry_check_interval 1
active_checks_enabled 1
check_period 24x7
notification_interval 120
notification_period 24x7
notification_options w,u,c,r
notifications_enabled 1
contact_groups admins
}
Specificatie van checks
check_ldap
De check van ldap vindt plaats met behulp van de standaard nagios plugin:
define service {
host_name <fdqn>
service_description check_ldap
use generic-service
check_command check_ldap!-H $hOSTADDRESS$ -b "cn=admin,dc=<fqdn>"
name ldap
register 1
max_check_attempts 3
normal_check_interval 5
retry_check_interval 1
active_checks_enabled 1
check_period 24x7
notification_interval 120
notification_period 24x7
notification_options w,u,c,r
notifications_enabled 1
contact_groups admins
}
Terug naar: Uwork Support Infrastructuur
