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Nagios监控配置总结
一、安装apache
1.下载httpd-2.2.19.tar.bz2,并解压
tar -jxvf httpd-2.2.19.tar.bz2
进入解压目录
cd httpd-2.2.19
2.安装apache到/usr/local/apache
./configure --prefix=/usr/local/apache
可带参数：--enable-so 设置apache服务可以动态加载模块功能
--enable-rewrite 设置apache服务器具有rewrite功能
3.安装
make && make install
二、安装PHP
1.下载php-5.3.6.tar.bz2,并解压
tar -jxvf php-5.3.6.tar.bz2
进入解压目录
cd php-5.3.6
2.安装PHP到/usr/local/php5
./configure --prefix=/usr/local/php5 --with-apxs2=/usr/local/apache/bin/apxs(apache目录)
3.安装
make && make test && make install
4.配置apache,使其支持PHP
修改apache配置文件httpd.conf
vim /usr/local/apache/conf/httpd.conf
找到LoadModule php5_module modules/libphp5.so所在行,在该行下增加AddType application/x-httpd-php .php
找到DirectoryIndex index.html一行,在其后添加index.php ,index.html和index.php之间有空格
5.关闭SELINUX，并设置防火墙放行80端口及服务
vim /etc/SELINUX/config
修改SELINUX=enabled为SELINUX=disabled
重启系统
此时测试PHP是否正确安装并配置无误
编写测试页面
vim /usr/local/apache/htdocs/index.php
写入如下内容
<HTML>
<HEAD></HEAD>
<BODY>
<?php
phpinfo();
?>
</BODY>
</HTML>
保存退出!
启动apache
/usr/local/apache/bin/apachectl start
在浏览器中输入http://IP/index.php
显示php的信息，配置无误！
三、安装nagios
1.下载nagios-3.2.3.tar.gz,并解压
tar -zxvf nagios-3.2.3.tar.gz
进入解压目录
cd nagios-3.2.3
2.建立用户和用户组nagios
groupadd nagios
useradd nagios
usermod -G nagios nagios
3.安装nagios到/usr/local/nagios
./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios
make
make install
make install-init
make install-commandmode
make install-config
确保以上步骤没有错误!则nagios安装完毕
四、安装nagios插件nagios-plugin(插件版本并不重要)
1.下载nagios-plugin，并解压
tar -zxvf nagios-plugin
进入解压目录
cd nagios-plugin
2.安装nagios-plugin到/usr/local/nagios
./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios
make
make install
五、配置nagios
1.修改apache配置文件，在配置文件末尾追加如下内容
# SAMPLE CONFIG SNIPPETS FOR APACHE WEB SERVER
# Last Modified: 11-26-2005
# This file contains examples of entries that need
# to be incorporated into your Apache web server
# configuration file. Customize the paths, etc. as
# needed to fit your system.
criptAlias /nagios/cgi-bin "/usr/local/nagios/sbin"
<Directory "/usr/local/nagios/sbin">
# SSLRequireSSL
Options ExecCGI
AllowOverride None
Order allow,deny
Allow from all
# Order deny,allow
# Deny from all
# Allow from 127.0.0.1
AuthName "Nagios Access"
AuthType Basic
AuthUserFile /usr/local/nagios/etc/htpasswd.users
Require valid-user
</Directory>
Alias /nagios "/usr/local/nagios/share"
<Directory "/usr/local/nagios/share">
# SSLRequireSSL
Options ExecCGI
AllowOverride None
Order allow,deny
Allow from all
# Order deny,allow
# Deny from all
# Allow from 127.0.0.1
AuthName "Nagios Access"
AuthType Basic
AuthUserFile /usr/local/nagios/etc/htpasswd.users
Require valid-user
</Directory>
通过命令生成的登录nagios管理界面的用户名密码配置文件:
/usr/local/apache2/bin/htpasswd -c /usr/local/nagios/etc/htpasswd.users nagios
输入两次密码
在浏览器中输入http://IP/nagios,输入用户名、密码即可进入nagios欢迎界面
2.为了监控主机服务器，需要编辑配置文件cgi.cfg
vim /usr/local/nagios/etc/cgi.cfg
编辑use_authentication=1为use_authencation=0.
3.nagios作为监控软件,实现监控其它主机服务器,主要实现目的就是创建配置文件，每一个主机一个配置文件。
编辑nagios主配置文件/usr/local/nagios/etc/nagios.cfg
vim /usr/local/nagios/etc/nagios.cfg
#cfg_dir=/usr/local/nagios/etc/servers 启用,去掉前面的#
4.监控linux.在目录/usr/local/nagios/etc/servers下创建配置文件，监控linux主机20.20.20.20,配置文件名字随意,
必须以 .cfg结尾。
vim /usr/local/nagios/etc/servers/20.20.20.20.cfg
输入如下内容：
define host {
use linux-server
host_name 20.20.20.20
alias 20.20.20.20
address 20.20.20.20
}
define service {
use generic-service
host_name 20.20.20.20
service_description check_ping
check_command check_ping!100.0,20%!200.0,50%
max_check_attempts 5
normal_check_interval 1
}
define service {
use generic-service
host_name 20.20.20.20
service_description check_ssh
check_command check_ssh
max_check_attempts 5
normal_check_interval 1
}
define service {
use generic-service
host_name 20.20.20.20
service_description check_http
check_command check_http
max_check_attempts 5
normal_check_interval 1
}
define service {
use generic-service
host_name 20.20.20.20
service_description check_ftp
check_command check_ftp!21
max_check_attempts 5
normal_check_interval 1
}
保存退出！
5.启动nagios
service nagios start
此时在浏览器输入http://IP/nagios
即可也监控主机20.20.20.20的状态
6.监控windows.监控windows需要借助一款客户端软件NSClient++-0.3.8-Win32.msi，在windows服务器安装
NSClient++-0.3.8-Win32.msi。并启动服务...
7.在目录/usr/local/nagios/etc/servers下创建配置文件，监控windows主机30.30.30.30,配置文件名字随意,
必须以 .cfg结尾。
vim /usr/local/nagios/etc/servers/30.30.30.30.cfg
输入如下内容：
###############################################################################
# WINDOWS.CFG - SAMPLE CONFIG FILE FOR MONITORING A WINDOWS MACHINE
#
# Last Modified: 06-13-2007
#
# NOTES: This config file assumes that you are using the sample configuration
# files that get installed with the Nagios quickstart guide.
#
###############################################################################
###############################################################################
###############################################################################
#
# HOST DEFINITIONS
#
###############################################################################
###############################################################################
# Define a host for the Windows machine we'll be monitoring
# Change the host_name, alias, and address to fit your situation
define host{
usewindows-server; Inherit default values from a template
host_name30.30.30.30; The name we're giving to this host
aliasMy Windows Server; A longer name associated with the host
address30.30.30.30; IP address of the host
}
###############################################################################
###############################################################################
#
# HOST GROUP DEFINITIONS
#
###############################################################################
###############################################################################
# Define a hostgroup for Windows machines
# All hosts that use the windows-server template will automatically be a member of this group
define hostgroup{
#hostgroup_namewindows-servers; The name of the hostgroup
#aliasWindows Servers; Long name of the group
}
###############################################################################
###############################################################################
#
# SERVICE DEFINITIONS
#
###############################################################################
###############################################################################
# Create a service for monitoring the version of NSCLient++ that is installed
# Change the host_name to match the name of the host you defined above
define service{
usegeneric-service
host_name30.30.30.30
service_descriptionNSClient++ Version
check_commandcheck_nt!CLIENTVERSION
}
# Create a service for monitoring the uptime of the server
# Change the host_name to match the name of the host you defined above
define service{
usegeneric-service
host_name30.30.30.30
service_descriptionUptime
check_commandcheck_nt!UPTIME
}
# Create a service for monitoring CPU load
# Change the host_name to match the name of the host you defined above
define service{
usegeneric-service
host_name30.30.30.30
service_descriptionCPU Load
check_commandcheck_nt!CPULOAD!-l 5,80,90
}
# Create a service for monitoring memory usage
# Change the host_name to match the name of the host you defined above
define service{
usegeneric-service
host_name30.30.30.30
service_descriptionMemory Usage
check_commandcheck_nt!MEMUSE!-w 80 -c 90
}
# Create a service for monitoring C:\ disk usage
# Change the host_name to match the name of the host you defined above
define service{
usegeneric-service
host_name30.30.30.30
service_descriptionC:\ Drive Space
check_commandcheck_nt!USEDDISKSPACE!-l c -w 90 -c 95
}
# Create a service for monitoring the W3SVC service
# Change the host_name to match the name of the host you defined above
#define service{
#usegeneric-service
#host_name30.30.30.30
#service_descriptionW3SVC
#check_commandcheck_nt!SERVICESTATE!-d SHOWALL -l W3SVC
#}
# Create a service for monitoring the Explorer.exe process
# Change the host_name to match the name of the host you defined above
define service{
usegeneric-service
host_name30.30.30.30
service_descriptionExplorer
check_commandcheck_nt!PROCSTATE!-d SHOWALL -l Explorer.exe
}
8.重启nagios
service nagios restart
此时在浏览器输入http://IP/nagios
即可也监控主机30.30.30.30的状态
六、nagios 配置完成,此时通过浏览器可以随时监控主机状态!