运维监控之Nagios实战(二)&Nagios客户端

   前面呢,服务器搭建起来了,可是光搭个监控报警服务器有什么用呢,难道只为了监控本机,可是如果本机宕机了,那还能收到报警信息吗,呵呵!

   现在我们来弄点被监控机吧...额,我现在就先弄下Linux和Windows主机

被监控机Linux

   linux客户端的所用到的工具

#!/bin/bash
#filename: nagios-clt.sh
#Environment: Centos 5.6 32-bit
#Author: maoxian
#blog: maoxian.blog.51cto.com

#定义变量
tooldir=/usr/local/src

#添加nagios用户
useradd nagios
#安装nagios-plugins-1.4.15,nrpe,
cd $tooldir
tar zxvf nagios-plugins-1.4.15.tar.gz
cd nagios-plugins-1.4.15
./configure --with-nagios-user=nagios --with-nagios-group=nagios
make && make install

cd $tooldir
tar zxvf nrpe-2.12.tar.gz
cd nrpe-2.12
./configure
make all
make install-plugin
make install-daemon
make install-daemon-config

#配置nrpe信息
#vim /usr/local/nagios/etc/nrpe.cfg
#allowed_hosts=127.0.0.1  //允许监控的IP
#
/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d

 到服务器上修改配置文件nagios.cfg,注释localhost.cfg那行 添加一样mylinux.cfg

创建/usr/local/nagios/etc/objects/mylinux.cfg 

#定义主机部分
define host{
        use                     linux-server
        host_name               nagios-server
        alias                   naigos-server
        address                 192.168.81.128
        icon_image              web.gif
        statusmap_image         web.gd2
    2d_coords       100,300
    3d_coords       100,300,100
        }
define host{
        use                     linux-server
        host_name               nagios-client
        alias                   nagios-client
        address                 192.168.81.129
        icon_image              server.gif
        statusmap_image         server.gd2
    2d_coords       200,300
    3d_coords       200,300,100
        }

#定义主机组部分
define hostgroup{
        hostgroup_name  linux-servers ; The name of the hostgroup
        alias           Linux Servers ; Long name of the group
        members         *     ; Comma separated list of hosts that belong to this group
        }
define hostgroup{
    hostgroup_name linux-server
    alias   nagios-test
    members nagios-server,nagios-client
    }
#定义服务组部分
define servicegroup{
    servicegroup_name 系统负荷检查
    alias 负荷检查
    members nagios-client,进程总数,nagios-client,登录用户数,nagios-client,根分区,nagios-client,交换空间利用率,nagios-client,PING
    }
#定义服务部分
define service{
        use                             local-service         ; Name of service template to use
        host_name                       *
        service_description             PING
    check_command           check_ping!100.0,20%!500.0,60%
        }
define service{
        use                             local-service         ; Name of service template to use
        host_name                       nagios-client
        service_description             根分区
    check_command           check_local_disk!20%!10%!/
        }
define service{
        use                             local-service         ; Name of service template to use
        host_name                       nagios-client
        service_description             登录用户数
    check_command           check_local_users!20!50
        }
define service{
        use                             local-service         ; Name of service template to use
        host_name                       nagios-client
        service_description             进程总数
    check_command           check_local_procs!250!400!RSZDT
        }
define service{
        use                             local-service         ; Name of service template to use
        host_name                       nagios-client
        service_description             系统负荷
    check_command           check_local_load!5.0,4.0,3.0!10.0,6.0,4.0
        }
define service{
        use                             local-service         ; Name of service template to use
        host_name                       nagios-client
        service_description             交换空间利用率
    check_command           check_local_swap!20!10
        }
define service{
        use                             local-service         ; Name of service template to use
        host_name                       nagios-client
        service_description             SSH
    check_command           check_tcp!22!1.0!10.0
    notifications_enabled       0
        }
define service{
        use                             local-service         ; Name of service template to use
        host_name                       nagios-client
        service_description             HTTP
    check_command           check_http
    notifications_enabled       0
        }

由于我这台机器并没有http 所以会出现异常,可以将以上文件的最后一段去掉.

     Windows客户端所用到的客户端  NSClient++

这个很简单,安装完成后编辑安装目录下的NSC.ini这个文件,按需求配置.之后再运行nsclient++.exe

将nagios-ser上的nagios.cfg的windows.cfg那行注释去掉,再编辑windows.cfg 改下IP就行了. 然后重启nagios服务!

配置文件中的配置可以到网上找找相关的资料,这里就不��嗦了,呵呵!

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