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  • bitdays.co.kr/2021/09/19/2021-%eb%85%84-%ed%83%80%ec%9d%b4%ec%96%b4-%ea%b2%bd%ed%99%94-%ed%94%84%eb%a0%88%ec%8a%a4-%ea%b8%b0%ea%b3%84-%ea%b0%9c-%ec%8b%9c%ec%9e%a5-%ea%b7%9c%eb%aa%a8-%ec%8b%a0%ea%b7%9c%eb%b3%b4%ea%b3%a0/ (port 80)