cacti插件thold安装

给cacti加monitor和thold插件，其中monitor用来监控设备，当设备down时可以检测到，thold用于报警提醒，配置了mail/dns后可以给管理员发送邮件，安装和配置都很简单，网上都有，但是安装完成后，cacti的菜单里没有thold的链接，一个是创建模板的thold_templates.php文件和用于管理报警规则的listthold.php，于是手动添加：

找到cacti/include目录下的global_array.php文件，有一段是menu，这一段用来设置菜单，自己加上就可以了

"graphs.php" => array(
                        "graphs.php" => "Graph Management",
                        "cdef.php" => "CDEFs",
                        "color.php" => "Colors",
                        "gprint_presets.php" => "GPRINT Presets"
                        ),
                "tree.php" => "Graph Trees",
                "data_sources.php" => array(
                        "data_sources.php" => "Data Sources",
                        "rra.php" => "RRAs"
                        ),
                "host.php" => 'Devices',
                "plugins/thold/listthold.php" => "Thresholds"
                ),
        "Collection Methods" => array(
                "data_queries.php" => "Data Queries",
                "data_input.php" => "Data Input Methods"
                ),
        "Templates" => array(
                "graph_templates.php" => "Graph Templates",
                "host_templates.php" => "Host Templates",
                "data_templates.php" => "Data Templates",
                "plugins/thold/thold_templates.php" => "Thold Templates"