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  • bitdays.co.kr/2021/07/14/%ea%b8%80%eb%a1%9c%eb%b2%8c-%eb%b9%84%ed%83%80%eb%af%bc-%ec%8b%9c%ec%9e%a5-2021-%ec%84%b1%ec%9e%a5-%ec%b6%94%ec%84%b8-%eb%b6%84%ec%84%9d-%eb%af%b8%eb%9e%98-%ea%b8%b0%ed%9a%8c-%eb%b0%8f-%ec%97%85/ (port 80)