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  • bitdays.co.kr/2021/05/05/%25EC%2586%258C%25EC%259E%25A5-%25EC%25B9%25B4%25EB%2593%259C-%25EA%25B2%258C%25EC%259E%2584-%25EC%258B%259C%25EC%259E%25A5-%25EC%2588%2598%25EC%259D%25B5-%25ED%2581%25AC%25EA%25B8%25B0-%25EC%2582%25B0%25EC%2597%2585-%25ED%2586%25B5%25EA%25B3%2584-%25EA%25B3%25B5%25EC%259C%25A0-%25EB%25B6%2584%25EC%2584%259D/ (port 80)