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  • bitdays.co.kr/2021/09/23/%ec%b9%98%ea%b3%bc-%ec%97%98%eb%a6%ac%eb%b2%a0%ec%9d%b4%ed%84%b0-%ec%8b%9c%ec%9e%a5%ec%9d%80-2021-%ea%b8%80%eb%a1%9c%eb%b2%8c-%ea%b3%b5%ec%9c%a0-%ed%81%ac%ea%b8%b0-%eb%af%b8%eb%9e%98-%ec%88%98/ (port 80)