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  • bitdays.co.kr/2021/05/05/%ea%b3%b5%ea%b3%b5-%ec%95%88%ec%a0%84%ec%9d%84%ec%9c%84%ed%95%9c-%ea%b2%83%eb%93%a4%ec%9d%98-%ec%9d%b8%ed%84%b0%eb%84%b7-iot-%ec%8b%9c%ec%9e%a5-%ec%88%98%ec%9d%b5-%ed%81%ac%ea%b8%b0-%ec%82%b0/ (port 80)