Check the auth log on any server with port 22 open and it's always the same story: endless login attempts from IPs that have clearly done this before. fail2ban bans them, the bantime runs out, and that's it. Nothing learned, nothing shared.

Source: [Dev.to](https://dev.to/fcalculator/make-fail2ban-report-its-bans-to-a-community-blacklist-288g)

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