[yabones]

Very nice. I think a lot of admins jump straight to the most complicated Elasticsearch/Datadog/NewRelic stack and don't even take a second to build something simpler.

For "unfussy" machines, I like to just set up rsyslog to send high priority syslogs right to email. [1]

[mxuribe]

I agree; I like simpler approaches first. Then - if needs grow - one can grow/evolve to more complxity, but only if even needed.

Also, I used to use emails as notifications for many, many years...but lately have been using my own little matrix cli app/script[1]. I'm such a fan of matrix nowadays. Also, I stopped sending a full log file, and merely send only a snippet...Often, its enough for me to get the gist of what is happening. And, if certain thresholds exceed beyond crazy levels, then the messages become more urgent from my machines. :-)

[1] shameless plug: https://github.com/mxuribe/howler