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  • Sun, Jan 16, 2022 by vados

    Infra Fun: Prometheus Broke My Haraka Installation

    Sometimes, if Prometheus gets too chatty with your mail server (it should never be looking for metrics on port 25 anyway), it can overwhelm SMTP servers which perform backoff for bad requests.

  • Sat, Dec 18, 2021 by vados

    New node who dis? DNS Issues and Calico Failures on a resurrected Node

    A while back, I had a somewhat soft node failure due to Calico not allowing the same node to come up under a different IP address.

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