0、安装软件
1、设置主机及相关关系
2、设置主机组
3、设置监控的服务
4、nrpe设置
0、安装软件及初始化
sudo apt-get install apache2 -y
sudo apt-get install nagios3 nagios-plugins nagios-images -y
更改管理员账户
sudo sed -i ‘s/nagiosadmin/ywz/g’ /etc/nagios3/cgi.cfg
sudo htpasswd /etc/nagios3/htpasswd.users ywz
添加用户
sudo htpasswd /etc/nagios3/htpasswd.users user1
联系人设置
define contact{
contact_name ywz
alias ywz
service_notification_period 24x7
host_notification_period 24x7
service_notification_options w,u,c,r
host_notification_options d,r
service_notification_commands notify-service-by-email
host_notification_commands notify-host-by-email
email ywz_306@163.com
}
define contactgroup{
contactgroup_name admins
alias Nagios Administrators
members ywz
}
1、设置主机及用户组
设置名称，地址，及相互连接方式
sudo nano /etc/nagios3/conf.d/hosts.cfg
define host{
host_name Baidu
alias IC
address www.baidu.coom
use generic-host
}
define host{
host_name WAN
alias pppoe
address 172.24.214.44
parents Baidu
use generic-host
}
define host{
host_name Lan
alias route
address 192.168.3.1
parents WAN
use generic-host
}
define host{
host_name haproxy1
alias haproxy1
address 192.168.3.17
parents Lan
use generic-host
}
define host{
host_name haproxy2
alias haproxy2
address 192.168.3.18
parents Lan
use generic-host
}
define host{
host_name www1
alias www1
address 192.168.3.33
parents Lan
use generic-host
}
2、设置主机组
sudo nano /etc/nagios3/conf.d/hostgroups_nagios2.cfg
# Some generic hostgroup definitions
# A simple wildcard hostgroup
define hostgroup {
hostgroup_name all
alias All Servers
members *
}
# A list of your Debian GNU/Linux servers
define hostgroup {
hostgroup_name debian-servers
alias Debian GNU/Linux Servers
members localhost,haproxy1,haproxy2,www1
}
# A list of your web servers
define hostgroup {
hostgroup_name http-servers
alias HTTP servers
members localhost,www1
}
# A list of your ssh-accessible servers
define hostgroup {
hostgroup_name ssh-servers
alias SSH servers
members localhost, haproxy1, haproxy2,www1
}
define hostgroup {
hostgroup_name all-gateways
aliasAll Gateways
membersLan, WAN
}
define hostgroup {
hostgroup_name ubuntu-servers
aliasUbuntu servers
members localhost, haproxy1, haproxy2, www1
}
2.1设置设备图标
sudo nano /etc/nagios3/conf.d/extinfo_nagios2.cfg
##
## Extended Host and Service Information
##
define hostextinfo{
hostgroup_name debian-servers
notes Debian GNU/Linux servers
# notes_url http://webserver.localhost.localdomain/hostinfo.pl?host=netware1
icon_image base/debian.png
icon_image_alt Debian GNU/Linux
vrml_image debian.png
statusmap_image base/debian.gd2
}
define hostextinfo{
hostgroup_name all-gateways
icon_image base/ng-switch40.png
statusmap_image base/ng-switch40.png
}
define hostextinfo{
hostgroup_name ubuntu-servers
icon_image base/ubuntu.png
statusmap_image base/ubuntu.png
}
3、设置需要监控服务
sudo nano /etc/nagios3/conf.d/services_nagios2.cfg
# check that web services are running
define service {
hostgroup_name http-servers
service_description HTTP
check_command check_http
use generic-service
notification_interval 0 ; set > 0 if you want to be renotified
}
# check that ssh services are running
define service {
hostgroup_name ssh-servers
service_description SSH
check_command check_ssh
use generic-service
notification_interval 0 ; set > 0 if you want to be renotified
}
define service {
hostgroup_nameall-gateways
service_descriptionPING
check_commandcheck_ping!100.0,20%!500.0,60%
usegeneric-service
notification_interval0
}
3.1 nagios-plugins 安装
4、nrpe相关设置
被控端
sudo apt-get install nagios-nrpe-server -y
更改配置文件
sudo nano /etc/nagios/nrpe.cfg
allowed_hosts=192.168.1.50
command[check_all_disks]=/usr/lib/nagios/plugins/check_disk -w 20% -c 10% -e
sudo service nagios-nrpe-server restart
主控端
新建单独的配置文件
sudo nano /etc/nagios3/conf.d/www1.cfg
define service{
usegeneric-service
host_name www1
service_descriptionDisk space
check_commandcheck_nrpe_1arg!check_all_disks
}define service{
use generic-service
host_name www1
service_description Current Users
check_command check_nrpe_1arg!check_users
}define service{
use generic-service
host_name www1
service_description Total Processes
check_command check_nrpe_1arg!check_total_procs
}define service{
use generic-service
host_name www1
service_description Current Load
check_command check_nrpe_1arg!check_load
}
说明
1、插件的命令全部放在/usr/lib/nagios/plugins/下面
2、check_nrpe_1arg 命令定义在/etc/nagios-plugins/config/check_nrpe.cfg
