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  • digii.co.kr/2021/10/28/%ec%a0%84%ec%9e%90-%eb%a0%88%ec%9d%b8%ec%a7%80-%ec%8b%9c%ec%9e%a5-%eb%af%b8%eb%9e%98-%ea%b0%9c%eb%b0%9c-%ec%a3%bc%ec%9a%94-%ea%b8%b0%ec%97%85-%ec%82%b0%ec%97%85-%ea%b7%9c%eb%aa%a8-%eb%b0%8f/ (port 80)