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  • bitdays.co.kr/2021/09/19/%ed%81%b0-%ec%a7%81%ea%b2%bd-%ed%8c%8c%ec%9d%b4%ed%94%84-%ec%8b%9c%ec%9e%a5-2021-%ea%b8%80%eb%a1%9c%eb%b2%8c-%ec%82%b0%ec%97%85-%eb%b6%84%ec%84%9d-%ed%81%ac%ea%b8%b0-%ea%b3%b5%ec%9c%a0-%eb%8f%99/ (port 80)