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  • bitdays.co.kr/2021/06/11/%eb%92%a4%eb%a5%bc-%eb%b0%94%ec%a7%9d-%ea%b0%90%ec%a7%80-%ec%8b%9c%ec%9e%a5-%ed%81%ac%ea%b8%b0-2021-%ed%81%ac%ea%b8%b0%ec%97%90-%ec%9d%98%ed%95%b4-%ec%82%b0%ec%97%85-%ea%b0%9c%ec%9a%94-%ea%b3%b5/ (port 80)