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  • bitdays.co.kr/2021/05/13/%ec%a0%84%ec%9b%90-%ea%b4%80%eb%a6%ac%ec%97%90-%eb%b9%85-%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%8b%9c%ec%9e%a5-%ed%81%ac%ea%b8%b0-2021-%ec%84%b1%ec%9e%a5-%ea%b3%b5%ec%9c%a0-%ec%82%b0%ec%97%85-%ec%97%ad/ (port 80)