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  • bitdays.co.kr/2021/07/22/%25EC%259C%25A0%25EA%25B8%25B0%25EB%2586%258D-%25EC%2597%2591%25EC%258A%25A4%25ED%258A%25B8%25EB%259D%25BC-%25EB%25B2%2584%25EC%25A7%2584-%25EC%2598%25AC%25EB%25A6%25AC%25EB%25B8%258C-%25EC%2598%25A4%25EC%259D%25BC-%25EC%258B%259C%25EC%259E%25A5-%25EA%25B7%259C%25EB%25AA%25A8-2021-%25EC%2588%2598%25EC%259A%2594/ (port 80)