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  • bitdays.co.kr/2021/07/31/%ec%b9%b4%eb%a9%94%eb%9d%bc-%ec%82%ac%ec%a7%84-%ec%82%bc%ea%b0%81%eb%8c%80-%ec%8b%9c%ec%9e%a5-%eb%b3%b4%ea%b3%a0%ec%84%9c-2021-%ec%a0%90%ec%9c%a0%ec%9c%a8-%ea%b7%9c%eb%aa%a8-%ed%96%a5%ed%9b%84/ (port 80)