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  • bitdays.co.kr/2021/05/31/%ec%9d%b4%eb%af%b8%ec%a7%80-%ea%b0%95%ed%99%94-%ed%8a%9c%eb%b8%8c-%ed%8c%90%eb%a7%a4-%ec%8b%9c%ec%9e%a5-%ed%81%ac%ea%b8%b0-%eb%a6%ac%ed%8f%ac%ed%8a%b8-%ec%b5%9c%ea%b3%a0-%ea%b5%ad%ea%b0%80-%ec%97%b0/ (port 80)