在nagios的几个触发参数里会有w、d、u、f这样的调用方式。具体每个字母代表的意思如下: 1host_notification_options: 2d = notify on DOWN host states, 3u = notify on UNREACHABLE host states 4r = notify on host recoveries (UP states) 5f = notify when the host starts and stops flapping 6s = send notifications when host or service scheduled downtime starts and ends 7n (none) as an option, the contact will not receive any type of host notifications. 8service_notification_options: 9w = notify on WARNING service……
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