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  • bitdays.co.kr/2021/09/02/%ec%8b%9d%ed%92%88-%ed%95%99%eb%85%84-%ec%9e%ac%ed%99%9c%ec%9a%a9-%ec%95%a0%ec%99%84-%eb%8f%99%eb%ac%bc-%ec%8b%9c%ec%9e%a5-2021-%ec%82%b0%ec%97%85-%ed%81%ac%ea%b8%b0-%ea%b3%b5%ec%9c%a0-%ea%b8%80/ (port 80)