使用nagios 监控

创建监控对象配置文件 xxx.cfg

加载监控对象配置文件 nagios.cfg

重启nagios服务

登录监控页面

远端主机配置

能正常与监控服务器通信

安装监控插件

安装nrpe

定义监控命令

启动nrpe服务

被监控端

yum -y install openssl-devel

1、安装监控插件

useradd nagios

groupadd nagcmd

usermod -G nagcmd nagios

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

cd nagios-plugins-1.4.14;

 ./configure --with-nagios-user=nagios --with-nagios-group=nagcmd  &&  make  && make  install 

2、安装nrpe

tar -zxvf nrpe-2.12.tar.gz 

cd nrpe-2.12

./configure   &&  make   &&  make  install

make install-plugin

make install-daemon

make install-daemon-config

make install-xinetd

3、定义监控命令

 vim /usr/local/nagios/etc/nrpe.cfg

command[check_users]=/usr/local/nagios/libexec/check_users -w 3 -c 5

command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20

command[check_sda2]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/sda2

command[check_zombie_procs]=/usr/local/nagios/libexec/check_procs -w 5 -c 10 -s Z

command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w 150 -c 200 

command[check_swap]=/usr/local/nagios/libexec/check_swap -w 40% -c 30%

4、启动nrpe服务

[root@localhost ~]# vim /etc/xinetd.d/nrpe  

        only_from       = 127.0.0.1     xxx.xxx.xxx.xxx #监控端

[root@localhost ~]# vim  /etc/services     //指定nrpe对应端口

nrpe     5666/tcp #nrpe service

5、重启服务

service xinetd restart

6、 减产nrpe 是否已经运行

cd /usr/local/nagios/libexec

./check_nrpe -H localhost

nagios服务器配置

新建远程主机的公有数据

新建监控对象文件

/usr/local/nagios/etc/objects

cp localhost.cfg s2.cfg

vim s2.cfg

define host{

        use                     linux-server            ; Name of host template to use

                                                        ; This host definition will inherit all variables that are defined

                                                        ; in (or inherited by) the linux-server host template definition.

        host_name               s2

        alias                   s2

        address                 127.0.0.1

        }

将其中的localhost 修改为s2

%s/localhost/s2/g

修改address xxx.xxx.xxx.xxx

修改主配置文件 nagios.cfg

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

# Definitions for monitoring the local (Linux) host

cfg_file=/usr/local/nagios/etc/objects/localhost.cfg

cfg_file=/usr/local/nagios/etc/objects/s2.cfg