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  • bitdays.co.kr/2021/04/07/tankless-%ec%98%a8%ec%88%98%ea%b8%b0-%ec%8b%9c%ec%9e%a5-%ed%81%ac%ea%b8%b0-2021-%ec%b5%9c%ea%b7%bc-%ea%b0%9c%eb%b0%9c-%ec%a0%9c%ed%92%88%ec%9d%80-2024%ec%9c%bc%eb%a1%9c-%ec%88%98%ec%9d%b5-%eb%b0%8f/ (port 80)