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  • bitdays.co.kr/2021/09/15/2021-%eb%85%84-%ec%b2%ab-%eb%b2%88%ec%a7%b8-%eb%b0%8f-%eb%91%90-%eb%b2%88%ec%a7%b8-%eb%8b%a8%ea%b3%84-%ec%8a%a4%ec%bf%a0%eb%b2%84-%eb%a0%88%ea%b7%a4%eb%a0%88%ec%9d%b4%ed%84%b0-%ea%b0%9c%ec%9d%98/ (port 80)