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  • bitdays.co.kr/2021/02/25/%ec%9d%b4%ec%82%b0%ed%99%94-%ec%85%80%eb%a0%88%eb%8a%84-%ec%8b%9c%ec%9e%a5-%ec%9d%b8%ec%82%ac%ec%9d%b4%ed%8a%b8-%ed%81%ac%ea%b8%b0-%eb%af%b8%eb%9e%98-%ec%84%b1%ec%9e%a5-%ec%88%98%ec%9a%94/ (port 80)