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  • bitdays.co.kr/2021/09/18/%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-%ed%8f%b4%eb%a6%ac%ed%8b%b0%ec%98%ac-%ec%8b%9c%ec%9e%a5-%ed%81%ac%ea%b8%b0-%eb%b6%84%ec%84%9d%ec%97%90-2/ (port 80)