MYSQL ERROR 2003 (HY000): Can't connect to MySQL server on '192.168.10.210' (111) 解決方法

今天在測試MySQL的鏈接時候，發現鏈接不經過，並報錯ERROR 2003 (HY000): Can’t connect to mysql server on ‘192.168.10.210’ (111) 測試代碼：mysql require 'mysql2' client = Mysql2::Client.new(:host=>"192.168.10.210",:username=>'root'

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