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  • bitdays.co.kr/2021/02/21/%ea%b8%80%eb%a1%9c%eb%b2%8c-%eb%a6%ac%ec%84%9c%ec%b9%98-%eb%b3%b4%ea%b3%a0%ec%84%9c%ec%97%90-%ec%84%b1%ec%84%a0-%ec%9e%90%ea%b7%b9-%ed%98%b8%eb%a5%b4%eb%aa%ac-%eb%b0%a9%ec%b6%9c-%ed%98%b8%eb%a5%b4/ (port 80)