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  • bitdays.co.kr/2021/05/12/%eb%a7%88%ec%9d%b4%ed%81%ac%eb%a1%9c-%ea%b7%b8%eb%a6%ac%eb%93%9c-%ec%9a%a9-%ec%97%90%eb%84%88%ec%a7%80-%ec%a0%80%ec%9e%a5-%ec%8b%9c%ec%9e%a5-%ed%81%ac%ea%b8%b0-2021-%ec%84%b1%ec%9e%a5-%ea%b3%b5/ (port 80)