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nagios利用NRPE监控CPU、负载、磁盘IO

2015-07-30 10:27 477 查看
1.在监控机上安装NRPE

tar -zxvf nrpe-2.12.tar.gz

cd nrpe-2.12

./configure

make all

make install-plugin

2.在被监控机上安装nagios插件和NRPE

(1).先增加nagios用户:

useradd nagios

(2.)安装nagios插件:

tar -zxvf nagios-plugins-1.4.14.tar.gz

cd nagios-plugins-1.4.14

./configure --prefix=/usr/local/nagios

make

make install

(3).安装nrpe:

tar -zxvf nrpe-2.12.tar.gz

cd nrpe-2.12

./configure --prefix=/usr/local/nagios

make all

make install-plugin

make install-daemon

make install-daemon-config

make install-xinetd nrpe安装为xinetd服务

(4).编辑nrpe配置文件,增加监控机地址:

#vi /etc/xinetd.d/nrpe

only_from = 127.0.0.1 10.1.1.14

(5).修改services文件,增加端口

#vi /etc/services

nrpe 5666/tcp #NRPE

(6).重启xinetd服务

service xinetd restart

(7).查看服务是否启动

#/usr/local/nagios/libexec/check_nrpe -H localhost

NRPE v2.12

如果出现Connection refused by host 需要安装yum intall openssl*

至此被监控机上的操作就结束了,如果有需要增加监控项,需修改/etc/xinetd.d/nrpe文件。

3.修改监控机上commands.cfg文件,增加check_nrpe的定义:

define command{

command_name check_nrpe

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

}

4.在监控机上测试与被监控机的通讯是否正常:

[root@test1 objects]# /usr/local/nagios/libexec/check_nrpe -H localhost -c check_load

OK - load average: 0.05, 0.06, 0.00|load1=0.050;15.000;30.000;0; load5=0.060;10.000;25.000;0; load15=0.000;5.000;20.000;0;

能够正常获取信息。

vim /usr/local/nagios/etc/nrpe.cfg

修改 allowed_hosts=127.0.0.1,10.1.1.14(监控机)

增加

command[check_sda2]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/sda2 --意思是监控第二个分区

command[check_swap]=/usr/local/nagios/libexec/check_swap -w 20% -c 10% -监控内存

修改监控机的services.cfg

增加需要监控的服务

5.修改服务配置文件:

增加:

define service {

host_name 1.1.1.1

max_check_attempts 5

check_period 24x7

notification_interval 10

normal_check_interval 1

retry_check_interval 1

service_description checkdisk2

check_command check_nrpe!check_sda2 ###########监控第二个硬盘

notification_period 24x7

notification_options w,u,c,r

contact_groups tomasgroup

}

define service {

host_name 1.1.1.1

max_check_attempts 5

check_period 24x7

notification_interval 10

normal_check_interval 1

retry_check_interval 1

service_description checkLoad

check_command check_nrpe!check_load ########### 监控CPU负载

notification_period 24x7

notification_options w,u,c,r

contact_groups tomasgroup

}

define service {

host_name 1.1.1.1

max_check_attempts 5

check_period 24x7

notification_interval 10

normal_check_interval 1

retry_check_interval 1

service_description checkswap

check_command check_nrpe!check_swap 监控内存

notification_period 24x7

notification_options w,u,c,r

contact_groups tomasgroup }
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