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  • bitdays.co.kr/2021/04/15/2026%ec%97%90-%ec%9d%98%ed%95%b4-%ec%a6%9d%ec%9d%b8-%ea%b0%95%eb%a0%a5%ed%95%9c-%ed%99%95%ec%9e%a5%ec%97%90-cat6-%eb%b0%8f-cat6e-%ec%9d%b4%eb%8d%94%eb%84%b7-%ec%bc%80%ec%9d%b4%eb%b8%94-%ec%8b%9c/ (port 80)