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  • bitdays.co.kr/2021/02/27/%ec%8b%a4%eb%a6%ac%ec%bd%98-%ec%b9%b4%eb%b0%94%ec%9d%b4%eb%93%9c-%ec%a0%84%eb%a0%a5-%eb%b0%98%eb%8f%84%ec%b2%b4-%ed%8c%90%eb%a7%a4-%ec%8b%9c%ec%9e%a5-%ec%a0%90%ec%9c%a0%ec%9c%a8-2021-%ea%b8%80/ (port 80)