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  • bitdays.co.kr/2021/05/15/%ed%81%b4%eb%9d%bc%ec%9a%b0%eb%93%9c-%eb%ac%b4%ec%84%a0-%ec%95%a1%ec%84%b8%ec%8a%a4-%eb%84%a4%ed%8a%b8%ec%9b%8c%ed%81%ac-%ec%8b%9c%ec%9e%a5-2021-%ea%b8%b0%ec%97%85-%eb%8f%84%ec%a0%84-%ec%82%ac-2/ (port 80)