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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 = 192.168.18.100
(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=192.168.18.100(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 wangbo
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 wagbo
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 wangbo
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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