This example USES a predefined "ping" Nagios plug-in, which sends Internet Control Message Protocol (ICMP) echo requests to determine if a host is responsive or not.
这个示例使用了一个预定义的“ping”Nagios插件,它将发送Internet控制信息协议(Internet Control Message Protocol, ICMP)回显请求以确定主机是否有响应。
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Certain predefined situations are triggered when there are faults caused by Web services, such as when message sizes or response times for the Web services exceed the configured thresholds.