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  • bitdays.co.kr/2021/02/28/13-%eb%b6%80%ed%83%84%eb%94%94%ec%98%ac-%ec%8b%9c%ec%9e%a5-%ea%b0%9c%ec%9a%94-%ea%b8%b0%ed%9a%8c-%ed%8a%b9%ec%a7%95-%ec%9e%a5%ec%a0%90%ec%9d%98-%eb%b6%84%ec%84%9d-%ec%a0%9c%ec%a1%b0-%eb%b9%84/ (port 80)