在阿里云服务器上安装Nagios监控系统

NagiOS是一款开源的网络监控系统，它可以对网络中的各种设备进行实时监控，并及时发现并处理各种网络问题。在阿里云服务器上安装Nagios，可以有效地提高网络的稳定性，降低故障率。

一、安装Nagios的前提条件

1. 阿里云服务器已经安装了linux操作系统，例如ubuntu、Centos等。

2. 阿里云服务器已经安装了WEB服务器，例如Apache、Nginx等。

3. 阿里云服务器已经安装了Mysql数据库。

二、安装Nagios

1. 打开阿里云服务器的Web服务器，例如在Ubuntu上，可以通过运行命令“sudo nano /etc/apache2/sites-available/nagios.conf”来编辑Nagios的配置文件。

2. 在配置文件中，需要添加以下几行代码，以配置Nagios的安装位置和启动命令：

``` ServerName nagios.example.com DocumentRoot /var/www/html/nagiosAllowOverride All Order allow,deny Allow from all ErrorLog ${APACHE LOGDIR}/nagios.log CustomLog ${APACHE LOG DIR}/nagios access.log combinedLoadModule authz core module /usr/lib/apache2/modules/mod authz core.soLoadModule authz user module /usr/lib/apache2/modules/mod authz user.soLoadModule PHP5 module /usr/lib/apache2/modules/php5.so

AllowOverride All Order allow,deny Allow from all

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