nagios安装
# yum install -y epel-release
# yum install -y httpd nagios nagios-plugins nagios-plugins-all nrpe nagios-plugins-nrpe
设置登录nagios后台的用户和密码：
# htpasswd -c /etc/nagios/passwd nagiosadmin
New password:
Re-type new password:
Adding password for user nagiosadmin
#
然后就可以在浏览器中登录
然后在客户端（另外一台机器)安装：
# yum install -y nagios-plugins nagios-plugins-all nrpe nagios-plugins-nrpe
编辑配置文件：
# vim /etc/nagios/nrpe.cfg
然后启动客户端：
# /etc/init.d/nrpe start
Starting nrpe: [确定]
然后再到服务端配置：
客户端的IP:192.168.1.130并定义子配置文件：
# cd /etc/nagios/conf.d
You have new mail in /var/spool/mail/root
# ls
# vim 192.168.1.130.cfg
define host{
use linux-server
host_name 192.168.1.130
alias 1.130
address 192.168.1.130
}
define service{
use generic-service
host_name 192.168.1.130
service_description check_ping
check_command check_ping!100.0,20%!200.0,50%
max_check_attempts 5
normal_check_interval 1
}
define service{
use generic-service
host_name 192.168.1.130
service_description check_ssh
check_command check_ssh
max_check_attempts 5
normal_check_interval 1
notification_interval 60
}
define service{
use generic-service
host_name 192.168.1.130
service_description check_http
check_command check_http
max_check_attempts 5
normal_check_interval 1
}
# service nagios restart
Running configuration check...done.
Stopping nagios: done.
Starting nagios: done.
#
然后继续在服务端配置：
# vim /etc/nagios/objects/commands.cfg
加入：
define command{
command_name check_nrpe
command_line $USE1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
然后继续编辑：
# vim /etc/nagios/conf.d/192.168.1.130.cfg
增加：
define service{
use generic-service
host_name 192.168.1.130
service_description check_load
check_command check_nrpe!check_load
max_check_attempts 5
normal_check_interval 1
}
define service{
usegeneric-service
host_name 192.168.1.130
service_description check_disk_hdal
check_command check_nrpe!check_hdal
max_check_attempts 5
normal_check_interval 1
}
defineservice{
usegeneric-service
host_name 192.168.1.130
service_description check_disk_hda2
check_command check_nrpe!check_hda2
max_check_attempts 5
normal_check_interval 1
}
在客户机上配置：
# vim /etc/nagios/nrpe.cfg
# The following examples use hardcoded command arguments...
command=/usr/lib/nagios/plugins/check_users -w 5 -c 10
command=/usr/lib/nagios/plugins/check_load -w 15,10,5 -c 30,25,20
command=/usr/lib/nagios/plugins/check_disk -w 20% -c 10% -p /dev/sda1
command=/usr/lib/nagios/plugins/check_disk -w 20% -c 10% -p /dev/sda2
command=/usr/lib/nagios/plugins/check_procs -w 5 -c 10 -s Z
command=/usr/lib/nagios/plugins/check_procs -w 150 -c 200
# The following examples allow user-supplied arguments and can
检测配置文件是否有错：
#nagios -v /etc/nagios/nagios.cfg
然后客户机上：
# service nrpe restart
Shutting down nrpe: [确定]
Starting nrpe: [确定]
#
然后服务器上：
# service nagios restart
Running configuration check...done.
Stopping nagios: done.
Starting nagios: done.
#
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