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  • bitdays.co.kr/2021/02/21/%ec%9e%90%eb%8f%99%ec%b0%a8-%ec%84%b8%ed%83%81%ea%b8%b0-%ed%8e%8c%ed%94%84-%ec%82%b0%ec%97%85-%ec%8b%9c%ec%9e%a5-%ec%9d%b8%ed%81%ac-%eb%a0%88-%eb%8d%94%eb%b8%94%ec%9d%98-%ea%b0%80%eb%8a%a5%ec%84%b1/ (port 80)