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  • bitdays.co.kr/2021/11/21/%ec%9e%90%eb%8f%99%ec%b0%a8-%ec%b2%b4%ec%9d%b8-%ec%8a%a4%ed%94%84%eb%a1%9c%ed%82%b7-%ec%8b%9c%ec%9e%a5-%ed%81%ac%ea%b8%b0-2021-%ec%a4%91%ec%9a%94%ed%95%9c-%ec%84%a0%ec%88%98-%ec%a7%80%ec%97%ad/ (port 80)