搭建Nagios监控系统


1、软件包准备

nagios-4.0.8.tar.gz

nagios-plugins-2.0.3.tar.gz

nrpe-2.15.tar.gz

httpd-2.2.23.tar.gz

 


2、Nagios Server端安装

1）、安装相关依赖包

yum install -y gcc glibc glibc-common gd gd-devel xinetd openssl-devel

2)、安装Nagios

# useradd -s /sbin/nologin nagios

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

# make all

# make install

# make install-init

# make install-commandmode

# make install-config

# chkconfig nagios on

# chkconfig --list | grep nagios

3)、安装Nagios插件

# tar zxvf nagios-plugins-2.0.3.tar.gz

# cd nagios-plugins-2.0.3

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

# make && make install

4）、安装配置apache

# tar zxvf httpd-2.2.23.tar.gz

# cd httpd-2.2.23

# ./configure --prefix=/usr/local/apache2

# make && make install

# vim /usr/local/apache2/conf/http.conf

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

User daemon

Group daemon

修改为

User nagios

Group nagios

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

<IfModule dir_module>

　　DirectoryIndex index.html

</IfModule>

修改并增加为

<IfModule dir_module>

　　DirectoryIndex index.html index.php

</IfModule>

AddType application/x-httpd-php .php

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

增加验证配置，即在httpd.conf 文件最后添加如下信息：

#setting for nagios

ScriptAlias /nagios/cgi-bin "/usr/local/nagios/sbin"

<Directory "/usr/local/nagios/sbin">

 AuthType Basic

 Options ExecCGI

 AllowOverride None

 Order allow,deny

 Allow from all

 AuthName "Nagios Access"

 AuthUserFile /usr/local/nagios/etc/htpasswd

 Require valid-user

</Directory>

Alias /nagios "/usr/local/nagios/share"

<Directory "/usr/local/nagios/share">

 AuthType Basic

 Options None

 AllowOverride None

 Order allow,deny

 Allow from all

 AuthName "nagios Access"

 AuthUserFile /usr/local/nagios/etc/htpasswd

 Require valid-user

</Directory>

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

创建上面的目录验证文件htpasswd

# /usr/local/apache2/bin/htpasswd -c /usr/local/nagios/etc/htpasswd nagios

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

修改配置文件中所有含有nagiosadmin的内容

nagiosadmin => nagiosadmin,nagios

# scp /usr/local/apache2/bin/apachectl /etc/init.d/httpd

# vim /etc/init.d/httpd

添加以下内容

# chkconfig: 2345 85 15

# description: Apache is a World Wide Web Server

# chkconfig httpd on

# chkconfig --list | grep httpd

 


5）、安装配置php

# tar zxvf php-5.4.10.tar.gz

# cd php-5.4.10

# ./configure --prefix=/usr/local/php --with-apxs2=/usr/local/apache2/bin/apxs

# make && make install

# service httpd start

# service nagios start

 


6)、安装nrpe

# tar zxvf nrpe-2.15.tar.gz

# cd nrpe-2.15

# ./configure --enable-command-args

# make all

# make install-plugin

# /usr/local/nagios/libexec/check_nrpe -H 10.0.2.203

NRPE v2.15

 

7)、配置commands.cfg，添加check_nrpe定义

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

# 'check_nrpe' command definition

define command{

command_name    check_nrpe       

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

}

 

8、配置hosts.cfg

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

define host{

use                    linux-server

host_name              node.3

alias                  node.3

address                10.0.2.203

}

 


9、配置node.3.cfg(也就是node.3的services.cfg文件，为了便于管理，每台机器的services.cfg文件分开配置，并以主机名命名)

vim /usr/local/nagios/etc/objects/node.3.cfg

define service{

use                    local-service

host_name              node.3

service_description    Current Load

check_command          check_nrpe!check_load

contact_groups          admins

}

 


define service{

use                    local-service

host_name              node.3

service_description    Check Disk disk

check_command          check_nrpe!check_disk

contact_groups          admins

}

 


define service{

use                    local-service

host_name              node.3

service_description    Total Processes

check_command          check_nrpe!check_total_procs

contact_groups          admins

}

 


define service{

use                    local-service

host_name              node.3

service_description    Current Users

check_command          check_nrpe!check_users

contact_groups          admins

}

 


define service{

use                    local-service

host_name              node.3

service_description    Check Zombie Procs

check_command          check_nrpe!check_zombie_procs

contact_groups          admins

}

 


10)、配置nagios.cfg

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

添加以下内容

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

cfg_file=/usr/local/nagios/etc/objects/node.3.cfg

 

11)、检查nagios配置文件，并重启nagios服务

# chown -R nagios.nagios /usr/local/nagios

# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

# service nagios restart

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