On Sunday, 6 September 2020 06:16:43 UTC+1, Tom Black wrote: > > I have used blackbox exporter: > https://github.com/prometheus/blackbox_exporter > > but I just didn't know where to setup alert email when there was server > down. > > Blackbox_exporter will give you a metric "probe_success" which returns 0 or 1. In prometheus you create an alerting rule on probe_success == 0, and you configure alertmanager with the E-mail destination. https://prometheus.io/docs/alerting/latest/overview/
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