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  • bitdays.co.kr/2021/05/05/%ec%b2%a0%eb%8f%84-%ec%8a%a4%ed%8a%b8%eb%a0%88%ec%9d%b4%ed%8a%b8-%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%ec%9d%b4-%eb%b6%84%ec%95%bc%ec%97%90-2025/ (port 80)