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  • bitdays.co.kr/2021/12/01/%ed%8f%b4%eb%a6%ac%ed%94%84%eb%a1%9c%ed%95%84%eb%a0%8c-%ed%8f%bc-%ed%8a%b8%eb%a0%88%ec%9d%b4-%ec%8b%9c%ec%9e%a5-%ed%81%ac%ea%b8%b0-%eb%a6%ac%ed%8f%ac%ed%8a%b8-%ec%b5%9c%ea%b3%a0-%ea%b5%ad%ea%b0%80/ (port 80)