class Rack::Attack Rack::Attack.cache.store = ActiveSupport::Cache::MemoryStore.new Rack::Attack.blocklist('fail2ban pentesters') do |req| cache_id = "pentesters-#{req.ip}-#{req.user_agent}" Rack::Attack::Fail2Ban.filter( cache_id, maxretry: 3, findtime: 10.minutes, bantime: 5.minutes ) do # The count for the IP is incremented if the return value is truthy self.attack?(req) end end def self.attack
![Railsで不正なアクセスをBANして、IPを永続化してSlackに通知する - Qiita](https://cdn-ak-scissors.b.st-hatena.com/image/square/83ccdebbf7fbbad456b1819ac86bb7aea3d34416/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-412672c5f0600ab9a64263b751f1bc81.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-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%26mark-x%3D142%26mark-y%3D57%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZoPTc2Jnc9NzcwJnR4dD0lNDBraWt1bmFudG9rYSZ0eHQtY29sb3I9JTIzMjEyMTIxJnR4dC1mb250PUhpcmFnaW5vJTIwU2FucyUyMFc2JnR4dC1zaXplPTM2JnR4dC1hbGlnbj1sZWZ0JTJDdG9wJnM9M2I2OTJkM2IxZWZkMjE5NmQyNDhmMGRhZDU4MDMwMGQ%26blend-x%3D142%26blend-y%3D486%26blend-mode%3Dnormal%26s%3De9e211a59f1e14c4f47efc0a4a656030)