yum安装nagios(centos 6.2)

前提先自行安装好Apache+php

测试环境

主监控机：CentOS 6.2 172.16.1.8

被监控机：CentOS 6.2 172.16.5.11

主监控机设置:

1、安装epel

# cat /etc/issue

CentOS release 6.2 (Final)

Kernel \r on an \m

# rpm -ivh rpm -ivh http://dl.iuscommunity.org/pub/ius/stable/Redhat/6/x86_64/epel-release-6-5.noarch.rpm 这里应该对应你服务器的版本

2、安装nagios、nagios-plugin与nrpe (nagios 3.3.1版本)

# yum install nagios nagios-plugins nagios-plugins-all nagios-plugins-nrpe nrpe

3、创建一个nagiosadmin 的用户用于Nagios的WEB接口登录，用户认证配置useradd nagiosadmin

# htpasswd -c /etc/nagios/passwd nagiosadmin

New password:

Re-type new password:

Adding password for user nagiosadmin

4、修改cgi.cfg文件，找到use_authentication=1 这行，把1改成0

#find -name cgi.cfg -print 查找

#vi /etc/nagios/cgi.cfg

5、启动apache与nagios

# /etc/init.d/httpd restart

# /etc/init.d/nagios start

6、登陆http://localhost/nagios/，输入用户密码后查看是否正常运行

注：别忘记了nagios后面那个/

被监控机设置:

1、安装需要软件

# yum install nagios-plugins nagios-plugins-nrpe nrpe

2、配置nrpe

# vi /etc/nagios/nrpe.cfg 修改监控机的地址或域名

allowed_hosts=127.0.0.1,192.168.1.8

3、修改/etc/hosts.allow增加监控机ip

# echo ‘nrpe:192.168.1.8′ >> /etc/hosts.allow

4、检查 NRPE 是否正常：

监控机上：

# /usr/lib64/nagios/plugins/check_nrpe -H 192.168.5.11

NRPE v2.12

查看相应的端口：netstat -an |grep 5666

防火墙开启5666 允许局域网IP或固定IP连接

5、启动 NRPE 守护进程：

# /usr/sbin/nrpe -c /etc/nagios/nrpe.cfg –d 或者

#/etc/init.d/nrpe start

6、关闭selinux：

#setenforce 0

在回到监控机：

添加nrpe的定义

# vi commands.cfg

# ‘check_nrpe’ command definition

define command{

command_name check_nrpe

command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$

}

增加主机监控配置项www.cfg

###### define hosts ###################################
define host {
host_name               cancer-ts4
address                 172.16.5.4
check_command           check-host-alive
check_interval          5
max_check_attempts      2
contact_groups          admins
}

define host {
host_name               cancer-ts11
address                 172.16.5.11
check_command           check-host-alive
check_interval          5
max_check_attempts      2
contact_groups          admins
}

define host {
host_name               cancer-ts12
address                 172.16.5.12
check_command           check-host-alive
check_interval          5
max_check_attempts      2
contact_groups          admins
}

define host {
host_name               cancer-hz4
address                 172.16.3.4
check_command           check-host-alive
check_interval          5
max_check_attempts      2
contact_groups          admins
}

define host {
host_name               cancer-hz5
address                 172.16.3.5
check_command           check-host-alive
check_interval          5
max_check_attempts      2
contact_groups          admins
}

define host {
host_name               cancer-hz12
address                 172.16.3.12
check_command           check-host-alive
check_interval          5
max_check_attempts      2
contact_groups          admins
}

define host {
host_name               cancer-hz13
address                 172.16.3.13
check_command           check-host-alive
check_interval          1
max_check_attempts      2
contact_groups          admins
}

######## define service ######################
define service{
host_name                       cancer-ts4,cancer-ts11,cancer-ts12,cancer-hz4,cancer-hz5,cancer-hz12,cancer-hz13
service_description             Users
check_period                    24x7
normal_check_interval           5
retry_check_interval            2
max_check_attempts              5
notification_period             24x7
contact_groups                  admins
check_command                   check_nrpe!check_users
}
define service{
host_name                       cancer-ts4,cancer-ts11,cancer-ts12,cancer-hz4,cancer-hz5,cancer-hz12,cancer-hz13
service_description             Load
check_period                    24x7
normal_check_interval           5
retry_check_interval            2
max_check_attempts              5
notification_period             24x7
contact_groups                  admins
check_command                   check_nrpe!check_load
}
define service{
host_name                       cancer-ts4,cancer-ts11,cancer-ts12,cancer-hz4,cancer-hz5,cancer-hz12,cancer-hz13
service_description             disk
check_period                    24x7
normal_check_interval           5
retry_check_interval            2
max_check_attempts              5
notification_period             24x7
contact_groups                  admins
check_command                   check_nrpe!check_hda1
}

define service{
host_name                       cancer-ts11,cancer-ts12,cancer-ts4,cancer-hz4,cancer-hz5,cancer-hz13,cancer-hz12
service_description             nginx
check_period                    24x7
normal_check_interval           5
retry_check_interval            2
max_check_attempts              5
notification_period             24x7
contact_groups                  admins
check_command                   check_nrpe!check_nginx
}

并把www.cfg添加到nagios主配置项

# echo “cfg_file=/etc/nagios/objects/www.cfg” >> /etc/nagios/nagios.cfg

其他机器如法炮制即可
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