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  • bitdays.co.kr/2021/06/20/%eb%ac%b4%ea%b1%b0%ec%9a%b4-%ea%b0%80%eb%b0%a9-%ec%8a%a4%ed%83%a0%eb%93%9c-%ec%8b%9c%ec%9e%a5-%ed%81%ac%ea%b8%b0-%ea%b8%80%eb%a1%9c%eb%b2%8c-%eb%b6%84%ec%84%9d-%ea%b0%9c%ec%9a%94-%ec%a4%91%ec%9a%94/ (port 80)