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  • bitdays.co.kr/2021/04/25/%ed%81%ac%ea%b8%b0%ec%97%90-%ec%9d%98%ed%95%b4-%ea%b4%91%ea%b3%a0%eb%a5%bc%ec%9c%84%ed%95%9c-%ec%a6%9d%ea%b0%95-%ed%98%84%ec%8b%a4-%ec%8b%9c%ec%9e%a5-2021-%ec%b5%9c%ea%b3%a0-%ea%b5%ad%ea%b0%80/ (port 80)