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  • bitdays.co.kr/2021/09/15/%25EB%25A7%25A4%25EB%258B%2588%25ED%2581%2590%25EC%2596%25B4-%25EC%25A0%259C%25EA%25B1%25B0%25EC%25A0%259C-%25EC%258B%259C%25EC%259E%25A5-2021-%25EC%2588%2598%25EC%259A%2594-%25EB%25B9%2584%25EC%25A6%2588%25EB%258B%2588%25EC%258A%25A4-%25EA%25B8%25B0%25ED%259A%258C-%25EC%2583%2588%25EB%25A1%259C%25EC%259A%25B4/ (port 80)