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  • bitdays.co.kr/2021/02/24/2021-%eb%85%84-%ec%83%9d%eb%b6%84%ed%95%b4-%ec%84%b1-%ed%94%8c%eb%9d%bc%ec%8a%a4%ed%8b%b1-%ec%8b%9c%ec%9e%a5-%ea%b7%9c%eb%aa%a8-%ec%83%88-%eb%b3%b4%ea%b3%a0%ec%84%9c-2025%ec%97%90%ec%84%9c-2021/ (port 80)