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  • bitdays.co.kr/2021/05/13/%ec%8a%b9%eb%ac%b4%ec%9b%90-%ea%b4%80%eb%a6%ac-%ec%8b%9c%ec%8a%a4%ed%85%9c-%ec%8b%9c%ec%9e%a5-%ed%81%ac%ea%b8%b0-2021-%ec%84%b1%ec%9e%a5-%ea%b3%b5%ec%9c%a0-%ec%82%b0%ec%97%85-%ec%97%ad%ed%95%99/ (port 80)