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  • bitdays.co.kr/2021/05/22/%ec%9b%90%ec%98%88-%ed%99%94%eb%b6%84-%ec%8b%9c%ec%9e%a5-%ed%81%ac%ea%b8%b0%ec%97%90-%eb%8c%80%ed%95%9c-%ec%97%b0%ea%b5%ac-%eb%b3%b4%ea%b3%a0%ec%84%9c-%ec%a4%91%ec%9a%94%ed%95%9c-%ec%84%a0%ec%88%98/ (port 80)