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  • bitdays.co.kr/2021/07/27/%ec%84%b8%ea%b3%84-%eb%95%85%ec%bd%a9-%eb%b2%84%ed%84%b0-%ec%8b%9c%ec%9e%a5-%ea%b7%9c%eb%aa%a8-2021-2025-%eb%85%84-%ec%b5%9c%ea%b3%a0-%ea%b5%ad%ea%b0%80-%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%82%b0%ec%97%85/ (port 80)