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  • bitdays.co.kr/2021/06/11/%ec%9d%b4%ec%86%8c%ed%94%84%eb%a0%8c-%ea%b3%a0%eb%ac%b4-ir-%ec%8b%9c%ec%9e%a5-%ec%a1%b0%ec%82%ac-2021-%ec%82%b0%ec%97%85-%ec%84%b1%ec%9e%a5-%ed%81%ac%ea%b8%b0-%ea%b3%b5%ec%9c%a0-%ea%b8%80/ (port 80)