yum安装nagois

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多少年前就装过了，今天再来用yum装一次，都忘干净了~~

主监控机：CentOS 6.5 192.168.0.105
被监控机：CentOS 6.5 192.168.0.107

主监控机 设置:
1、安装epel,http,php

wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm

rpm -ivh epel-release-latest-.noarch.rpm

yum -y install httpd php

2、安装nagios、nagios-plugin与nrpe (nagios 4.3.4版本)

yum install -y nagios nagios-plugins nagios-plugins-all nagios-plugins-nrpe nrpe
3、启动apache与nagios
/etc/init.d/httpd restart
/etc/init.d/nagios start
4、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/，不然……

被监控机 设置:
1、安装需要软件

wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm

rpm -ivh epel-release-latest-.noarch.rpm

yum install -y nagios-plugins nagios-plugins-nrpe nrpe nagios-plugins-load nagios-plugins-disk nagios-plugins-swap

2、配置nrpe

vi /etc/nagios/nrpe.cfg 修改监控机的地址或域名
allowed_hosts=127.0.0.1,192.168.0.105
3、修改/etc/hosts.allow增加主监控机ip
echo 'nrpe:192.168.0.105' >> /etc/hosts.allow
4、启动 NRPE 守护进程：
/usr/sbin/nrpe -c /etc/nagios/nrpe.cfg -d
可以将此命令加入 /etc/rc.local ，以便开机自动启动。
echo "/usr/sbin/nrpe -c /etc/nagios/nrpe.cfg -d" >> /etc/rc.local

以下在主监控机 上执行
1、从主监控机上检查 NRPE 是否正常：
/usr/lib64/nagios/plugins/check_nrpe -H 192.168.0.107
输出为NRPE v3.2.0

2. 添加nrpe的定义
vi /etc/nagios/objects/commands.cfg

# 'check_nrpe' command definition

define command{

command_name check_nrpe

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

}

3. 增加主监控机配置项vi /etc/nagios/objects/11.cfg

define host{

use linux-server

host_name 192.168.0.107

alias 192.168.0.107

address 192.168.0.107

}

define service{

use generic-service

host_name 192.168.0.107

service_description load

check_command check_nrpe!check_load

}

define service{

use generic-service

host_name 192.168.0.107

service_description PING

check_command check_ping!100.0,%!200.0,%

max_check_attempts

normal_check_interval

}

define service{

use generic-service

host_name 192.168.0.107

service_description FTP

check_command check_ftp!

max_check_attempts

normal_check_interval

}

define service{

use generic-service

host_name 192.168.0.107

service_description SSH

check_command check_ssh

max_check_attempts

normal_check_interval

}

define service{

use generic-service

host_name 192.168.0.107

service_description HTTP

check_command check_http

max_check_attempts

normal_check_interval

}