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  • bitdays.co.kr/2021/06/11/%ec%a0%9c%ed%92%88-%ec%88%98%eb%aa%85%ec%a3%bc%ea%b8%b0-%ea%b4%80%eb%a6%ac-%ec%8b%9c%ec%9e%a5-%eb%af%b8%eb%9e%98-%ea%b0%9c%eb%b0%9c-%ec%b5%9c%ea%b3%a0%ec%9d%98-%ed%9a%8c%ec%82%ac-%ec%82%b0%ec%97%85/ (port 80)