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  • bitdays.co.kr/2021/05/05/%ec%82%b0%ec%97%85-%ec%97%b0%ea%b5%ac-%ec%97%85%eb%8d%b0%ec%9d%b4%ed%8a%b8-%eb%af%b8%eb%9e%98-%eb%b2%94%ec%9c%84-%ed%81%ac%ea%b8%b0-%ec%b6%94%ec%a0%95-%ec%88%98%ec%9d%b5%ec%9d%b4-%ec%82%b0-30/ (port 80)