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  • bitdays.co.kr/2021/07/19/%ed%81%ac%eb%a1%9c%eb%a7%88%ed%86%a0-%ea%b7%b8%eb%9e%98%ed%94%bc-%ec%95%a1%ec%84%b8%ec%84%9c%eb%a6%ac-%eb%b0%8f-%ec%86%8c%eb%aa%a8%ed%92%88-%ec%8b%9c%ec%9e%a5-%ea%b7%9c%eb%aa%a8-2021-%ec%88%98/ (port 80)