企业级监控软件Nagios

之前用过的监控软件包括MRTG和RDDTOOLS的一些客户端，如Cacti等，都是不错的选择，最近发现一个真正的企业级应用监控系统，一个比Big Brother等强大，比Cacti等更加成熟的产品级的东西--Nagios。
Nagios的特色，
×监控网络服务;
×监控系统资源;
×简单的插件开发功能扩展监控功能，这个和Cacti等有的一拼;
×并行多服务监控;
×定义网络层次结构，辨别主机失效或网络故障;
×服务失效通知，mail等，和BB有点类似，比Cacti在这方面强点;
×自动日志回滚;
×宂余主机监控;
×web界面功能;

系统要求：
对于安装Nagios监控系统的服务器要求只要是Linux，最后有C编译器，剩下的就是
有Apache Web服务器和GD库（高于1.6.3）。

编译和安装：
对于Fedora Core 5的用户，Nagios 2.3已经在Fedora Extra的库中，直接运行
yum install nagios
即可完成安装。
而其他的RedHat版本的用户或者CentOS之类用户，可以到Dag Wieers RPM库里查找自己所需要的合适的版本,一定要安装Nagios的插件（Plugins）;

(To be continue ...)

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