本篇内容主要讲解“CentOS环境下Nagios的安装与配置”,感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷,实用性强。下面就让小编来带大家学习“CentOS环境下Nagios的安装与配置”吧!
一、安装环境:CentOS5.4 + Apache2 + PHP5.2,请确保已安装PHP+Apache,可参看本博有关Apache与PHP的安装教程;
二、创建Nagios用户及用户组,命令如下:
#useradd -m nagios
--创建nagcmd组用来运行通过web接口传输过来的命令,同时添加nagios和apache
#groupadd nagcmd #usermod -a -G nagcmd nagios #usermod -a -G nagcmd apache
三、下载安装Nagios及Nagios插件,过程如下:
——下载Nagios
#wget http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-3.2.1.tar.gz
——下载Nagios插件
#wget http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.14.tar.gz
——解压Nagios
#tar -zvxf nagios-3.2.1.tar.gz
#cd nagios-3.2.1
——编译
#./configure --with-command-group=nagcmd #make all
——安装Nagios,初始化脚本及配置文件,Nagios将会被安装至/usr/local/nagios #make install #make install-init #make install-config #make install-commandmode
——安装WEB界面,界面将会安装到 /usr/local/nagios/share ( http 配置文件默认添加到 /etc/httpd/conf.d/nagios.conf,如果没有则执行:#cp sample-config/httpd.conf /etc/apache2/conf.d/nagios.conf )
#make install-webconf
——创建HTTP认证用户登录Nagios,用户名nagiosadmin,密码123456
#htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
——重启apache
#service httpd restart
——安装Nagios插件
#tar -zvxf nagios-plugins-1.4.14.tar.gz
#cd nagios-plugins-1.4.14
#./configure --with-nagios-user=nagios --with-nagios-group=nagios #make && make install
——配置Nagios管理员接受告警信息的邮箱,写入管理员邮箱 #vim /usr/local/nagios/etc/objects/contacts.cfg email admin@admin.com ; ——校验Nagios配置文件,验证配置是否有误 #/usr/local/nagios/bin/nagios -v
——启动Nagios,配置在系统启动时运行Nagios
#chkconfig --add nagios #chkconfig nagios on #chkconfig httpd on
——运行Nagios
#service nagios start
四、登陆到Web界面,输入用户名密码:nagiosadmin 123456,http://localhost/nagios/
五、错误处理
本机监控HTTP SSH的Notifications显示警告错误,解决方法:
#vim /usr/local/nagios/etc/objects/localhost.cfg
define service{
use local-service ; Name of service template to use
host_name localhost
service_description SSH
check_command check_ssh
notifications_enabled 1 #改为1,即可
}
# Define a service to check HTTP on the local machine.
# Disable notifications for this service by default, as not all users may have HTTP enabled.
define service{
use local-service ; Name of service template to use
host_name localhost
service_description HTTP
check_command check_http
notifications_enabled 1 #改为1,即可
}
Nagios显示类似错误:HTTP WARNING: HTTP/1.1 403 Forbidden - 5240 bytes in 0.002 second response time。
该错误表明在apache web根目录没有index.html文件。解决方法:在web根目录(如:/var/www/html/目录)建立index.html文件,重启apache和nagios即可。
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