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  • bitdays.co.kr/2021/04/09/%ec%a0%9c%ec%b2%a0%ec%86%8c-%ec%8a%a4%ed%82%a4%eb%a8%b8-%ec%8b%9c%ec%9e%a5-2020-%ec%96%b4%eb%96%bb%ea%b2%8c-%eb%8b%a4%ea%b0%80%ec%98%a4%eb%8a%94-%eb%85%84-%eb%a7%8c%ec%97%90-%ec%82%b0%ec%97%85/ (port 80)