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  • bitdays.co.kr/2021/09/15/%ea%b8%80%eb%a1%9c%eb%b2%8c-%ea%b1%b0%ed%92%88-%eb%b9%84%eb%88%84-%eb%94%94%ec%8a%a4%ed%8e%9c%ec%84%9c-%ec%8b%9c%ec%9e%a5-%ea%b7%9c%eb%aa%a8-2021-%eb%85%84-%ec%b5%9c%ea%b3%a0-%ea%b5%ad%ea%b0%80/ (port 80)