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  • bitdays.co.kr/2021/02/16/%eb%b3%b4%ec%9d%b4%ec%a7%80-%ec%95%8a%eb%8a%94-%ec%b9%98%ea%b3%bc-%ea%b5%90%ec%a0%95%ea%b8%b0-%ec%8b%9c%ec%9e%a5-%ed%81%ac%ea%b8%b0-%eb%b6%84%ec%84%9d%ec%97%90-%ec%9d%98%ed%95%b4-%ed%98%84%ec%9e%ac/ (port 80)