Конфигурирование Nagios для мониторинга хостов

# cd /etc/nagios/objects/

# vi contacts.cfg

email                           nagios@localhost


# cd ../
# vi nagios.cfg



# You can specify individual object config files as shown below:
#cfg_file=/usr/local/nagios-4.3.1/etc/objects/commands.cfg
#cfg_file=/usr/local/nagios-4.3.1/etc/objects/contacts.cfg
#cfg_file=/usr/local/nagios-4.3.1/etc/objects/timeperiods.cfg
#cfg_file=/usr/local/nagios-4.3.1/etc/objects/templates.cfg

# Definitions for monitoring the local (Linux) host
#cfg_file=/usr/local/nagios-4.3.1/etc/objects/localhost.cfg

Оставляю:

cfg_dir=/etc/nagios/objects

# cd /etc/nagios/objects
# mkdir ../disabled
# mv switch.cfg windows.cfg printer.cfg ../disabled/

Проверка конфига:

# /usr/local/nagios/bin/nagios -v /etc/nagios/nagios.cfg

# service nagios restart

Всякие конфиги

# vi templates.cfg

Один хост

# vi hosts.cfg

define host {
use linux-server
host_name appserver1
alias appserver1
address 192.168.1.31
}

# vi services.cfg

define service {
use generic-service
host appserver1
service_description HTTP
check_command check_http
}

# service nagios restart

Несколько хостов

# vi hosts.cfg

define host {
use linux-server
host_name appserver1
alias appserver1
address appserver1
}

define host {
use linux-server
host_name appserver2
alias appserver2
address appserver2
}

# vi services.cfg

define service {
use generic-service
host appserver1, appserver2
service_description HTTP
check_command check_http
}

# service nagios restart

С использованием хостовых групп (hostgroups.cfg)

# vi hostgroups.cfg

define hostgroup {
hostgroup_name appservers
alias appservers
}

# vi templates.cfg

# Linux host definition template - This is NOT a real host, just a template!

define host {
name appserver
use linux-server
register 0
hostgroups appservers
}

# vi services.cfg

define service {
use generic-service
hostgroup_name appservers
service_description HTTP
check_command check_http
}