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  • bitdays.co.kr/2021/05/15/%ed%94%bc%ed%81%b4-%ec%9e%a5%eb%b9%84-%ec%8b%9c%ec%9e%a5-%eb%b3%b4%ea%b3%a0%ec%84%9c%eb%8a%94-%ec%84%b8%ea%b3%84%ec%97%90%ec%84%9c-2021-%ec%82%b0%ec%97%85-%ea%b0%9c%ec%9a%94-%ec%b5%9c%ea%b3%a0-2/ (port 80)