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  • bitdays.co.kr/2021/02/20/%ec%97%94%ed%84%b0%ed%94%84%eb%9d%bc%ec%9d%b4%ec%a6%88-%ed%8c%8c%ec%9d%bc-%eb%8f%99%ea%b8%b0%ed%99%94-%eb%b0%8f-%ea%b3%b5%ec%9c%a0-%ec%8b%9c%ec%9e%a5-%ed%81%ac%ea%b8%b0-%ec%b5%9c%ea%b3%a0-%ea%b5%ad/ (port 80)