endlesshのgo実装があるのね
オリジナルにはないGrafana DashboardのPrometheus metricsの出力があるよう
shizunge/endlessh-go: A golang implementation of endlessh exporting Prometheus metrics, visualized by a Grafana dashboard. https://github.com/shizunge/endlessh-go
Endlessh を使って ssh 接続をとてもゆっくりと処理して攻撃者に嫌がらせをする – matoken's blog https://matoken.org/blog/2019/03/26/use-endlessh-to-handle-ssh-connections-very-slowly-and-harass-attackers/
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