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  • bitdays.co.kr/2021/05/13/%ec%9e%98%eb%9d%bc-%eb%82%b4%ea%b8%b0-%eb%b0%8f-%ec%8a%a4%ed%83%9d-%eb%a0%88%ec%9d%b4%eb%b8%94-%ec%8b%9c%ec%9e%a5-%ed%81%ac%ea%b8%b0-2021-%ec%84%b1%ec%9e%a5-%ea%b3%b5%ec%9c%a0-%ec%82%b0%ec%97%85/ (port 80)