Nagios 介绍Nagios 是一款Linux 上成熟的监视系统运行状态和网络信息的开源软件，可以对对主机或服务进行检测的自动化工具；Nagios 能监控所指定的本地或远程主机及服务，同时提供异常通知、事件处理等功能。与商业IT管理系统相比，Nagios 具有成本低廉、结构简单、可维护性强等诸多优点。Nagios 安装配置：*安装环境 centos 6.3*新版本改进 5 3.4.4 - 01/12/2013 6 ------------------ 7 * Reenabled check for newer versions of Nagios Core (Mike Guthrie) 8 * Fixed bug #408: service checks get duplicated on reload (Eric Stanley) 9 * Fixed bug #401: segmentation fault on Solaris when parsing unknown timeperiod directives. (Eric Stanley) 10 * Added NULL pointer checks to CGI code. (Eric Stanley) 11 * Fixed buffer overflow vulnerability in CGI code. Thanks to Neohapsis (http://archives.neohapsis.com/archives/fulldisclosure/2012-12/0108.html) for finding this. (Eric Stanley) 一、创建用户和组 [root@localhost ~]# useradd -s /sbin/nologin nagios[root@localhost ~]# mkdir /usr/local/nagios[root@localhost ~]# chown -R nagios:nagios /usr/local/nagios/二、安装apache、php、sendmail、gd_devel [root@localhost ~]# yum install gd-devel httpd httpd-devel php sendmail -y 三、编译安装Nagios [root@localhost ~]# wget http://sourceforge.net/projects/nagios/files/nagios-3.x/nagios-3.4.4/nagios-3.4.4.tar.gz[root@localhost ~]# tar zxvf nagios-3.4.4.tar.gz[root@localhost ~]# cd nagios #跟老版本有点区别[root@localhost nagios]# ./configure --prefix=/usr/local/nagios/ #指定安装目录[root@localhost nagios]# make all[root@localhost nagios]# make install #安装Nagios主程序的CGI和HTML文件[root@localhost nagios]# make install-init #创建Nagios启动脚本[root@localhost nagios]# make install-commandmode #配置目录权限[root@localhost nagios]# make install-config #安装Nagios示例配置文件* nagios安装完成后，目录对应的功能说明如下： bin：可执行程序所在目录 etc：配置文件所在目录 sbin：cgi文件所在目录，也就是执行外部命令所需文件所在目录 share：网页文件所在目录 libexec：外部插件所在目录 var：日志文件，lock等文件所在目录 var/archives：日志自动归档目录 var/rw：用来存放外部命令文件的目录四、编译安装nagios-plugins

[root@localhost ~]# wget http://sourceforge.net/projects/nagiosplug/files/latest/download?source=directory

[root@localhost ~]# tar zxvf nagios-plugins-1.4.16.tar.gz [root@localhost ~]# cd nagios-plugins-1.4.16[root@localhost nagios-plugins-1.4.16]# ./configure --prefix=/usr/local/nagios/[root@localhost nagios-plugins-1.4.16]# make && make install

五、配置Apache [root@localhost ~]# vi /etc/httpd/conf/httpd.conf#红色部分为修改添加部分 User nagiosGroup nagiosDirectoryIndex index.html index.html.var index.phpAddType application/x-httpd-php .php #在配置文件末尾添加如下信息：#setting for nagiosScriptAlias /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>#添加Apache认证用户：
[root@localhost ~]# /usr/bin/htpasswd -c /usr/local/nagios/etc/htpasswd userNew password:Re-type new password:Adding password for user user六、配置本机监控1.新建monitor 文件，拷贝示例文件到该目录下[root@localhost etc]# pwd/usr/local/nagios/etc[root@localhost etc]# mv objects/ monitor2.修改联系人配置文件[root@localhost monitor]# cat contacts.cfg |grep -v "#"|grep " "define contact{ contact_name user ; Short name of user use generic-contact ; 引用generic-contact属性信息 alias Nagios Admin ; Full name of user email user@163.com ; 告警接收邮箱 }define contactgroup{ contactgroup_name admins alias Nagios Administrators members user ;添加上面定义的联系人，逗号分隔 }3.修改cgi.cfg default_user_name=user ;将用户名修改为nagios界面登录的用户名 4.修改nagios.cfg 将所有cfg_file=都注释掉添加如下一行 cfg_dir=/usr/local/nagios/etc/monitor #这样配置非常方便以后维护5.使用命令：/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg检查配置是否有误 6.重启apache、nagios 并加到开启启动项 [root@localhost ~]# service httpd restart 停止 httpd：[确定]正在启动 httpd：[确定][root@localhost ~]# service nagios restartRunning configuration check...done.Stopping nagios: .done.Starting nagios: done.[root@localhost ~]# chkconfig httpd on[root@localhost ~]# chkconfig nagios on7.下图为了看的更直观，没有删除其他的配置，目前还没有这个版本的汉化包，3.2版本有汉化包，汉化过的软件比较别扭，英文版的多使用几次就熟悉了。