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  • bitdays.co.kr/2021/07/19/%ea%b8%b0%ec%97%85-%ea%b0%84-b2b-%ec%a0%84%ec%9e%90-%ec%83%81%ea%b1%b0%eb%9e%98-%ec%8b%9c%ec%9e%a5-%ed%86%b5%ec%b0%b0%eb%a0%a5-%ea%b8%b8%ec%9d%b4-%eb%af%b8%eb%9e%98-%ec%a6%9d%ea%b0%80-%eb%b9%84/ (port 80)