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  • bitdays.co.kr/2021/09/04/%ed%81%ac%ea%b8%b0%ec%97%90-%ec%9d%98%ed%95%b4-%eb%a0%88%ec%9d%b4%ec%a0%80-%eb%b0%94%ec%bd%94%eb%93%9c-%ec%8a%a4%ec%ba%90%eb%84%88-%ec%8b%9c%ec%9e%a5-2021-%ec%b5%9c%ea%b3%a0-%ea%b5%ad%ea%b0%80/ (port 80)