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  • bitdays.co.kr/2021/05/15/%ec%95%a1%ec%b2%b4-%eb%8b%a4%ec%8b%9c%eb%a7%88-%eb%b9%84%eb%a3%8c-%ec%8b%9c%ec%9e%a5-%eb%b3%b4%ea%b3%a0%ec%84%9c%eb%8a%94-2021-%ec%84%b8%ea%b3%84-%ec%b5%9c%ea%b3%a0-%ea%b5%ad%ea%b0%80-%eb%8d%b0/ (port 80)