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  • bitdays.co.kr/2021/03/11/%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%9b%90%ea%b2%a9-%ec%bd%98%eb%8d%b4%ec%84%9c-%ec%8b%9c%ec%9e%a5-%ed%81%ac%ea%b8%b0-%eb%b6%84%ec%84%9d/ (port 80)