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  • bitdays.co.kr/2021/04/16/%ec%8a%a4%ed%8f%ac%ec%b8%a0-%ed%94%8c%eb%9d%bc%ec%9d%b4-%eb%82%9a%ec%8b%9c-%ec%9e%a5%eb%b9%84-%ec%8b%9c%ec%9e%a5-%ea%b7%9c%eb%aa%a8-%ec%98%88%ec%b8%a1-%ec%84%b8%ea%b7%b8%eb%a8%bc%ed%8a%b8%ec%9d%98/ (port 80)