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  • bitdays.co.kr/2021/05/20/%ec%8a%a4%eb%a7%88%ed%8a%b8-%eb%9d%bc%ec%9d%b4%ed%8a%b8-%ec%8a%a4%ed%8a%b8%eb%a6%bd-%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/ (port 80)