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  • bitdays.co.kr/2021/09/23/%25EC%25B2%25A0%25EB%258F%2584-%25EC%259D%25B8%25ED%2594%2584%25EB%259D%25BC-%25EC%259E%25A5%25EB%25B9%2584-%25EC%258B%259C%25EC%259E%25A5-2021-%25EC%25A3%25BC%25EC%259A%2594-%25EC%2584%25A0%25EC%2588%2598-%25EC%25A0%2590%25EC%259C%25A0%25EC%259C%25A8-%25EB%25B6%2584%25EC%2584%259D-%25EC%25A3%25BC%25EC%259A%2594/ (port 80)