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  • bitdays.co.kr/2021/04/16/%eb%8b%a4%ec%9d%b4%ec%95%84-%ec%a0%9c%ed%8c%9c-%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-%ea%b3%b5/ (port 80)