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  • bitdays.co.kr/2021/05/18/%ec%9a%b4%ec%86%a1-%ed%95%a0-%ec%88%98%ec%9e%88%eb%8a%94-%eb%a0%88%ec%9d%b4%eb%8d%94-%ec%a0%9c%ec%96%b4-%ec%8b%9c%ec%8a%a4%ed%85%9c-trc%eb%a5%bc-%ec%82%ac%ec%9a%a9%ed%95%b4-%ec%8b%9c%ec%9e%a5-2/ (port 80)