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  • bitdays.co.kr/2021/05/11/%ed%81%b4%eb%9d%bc%ec%9a%b0%eb%93%9c-%eb%b9%84%ec%a6%88%eb%8b%88%ec%8a%a4-%ec%a0%84%ed%99%94-%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/ (port 80)