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  • bitdays.co.kr/2021/09/03/cpvc-%ed%8c%8c%ec%9d%b4%ed%94%84-%ec%8b%9c%ec%9e%a5-2021-%ec%98%88%ec%b8%a1%ea%b3%bc%ec%9d%98-%ec%83%9d%ec%82%b0-%ec%88%98%ec%9d%b5-%ea%b0%80%ea%b2%a9-%eb%b0%8f-%ec%b4%9d-%eb%a7%88%ec%a7%84/ (port 80)