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  • bitdays.co.kr/2022/05/15/%25EB%258B%25A4%25EC%25A4%2591-%25EB%25A7%25A4%25EA%25B0%259C-%25EB%25B3%2580%25EC%2588%2598-%25ED%2599%2598%25EC%259E%2590-%25EB%25AA%25A8%25EB%258B%2588%25ED%2584%25B0%25EB%25A7%2581-%25EC%259E%25A5%25EB%25B9%2584-%25EC%258B%259C%25EC%259E%25A5-2017-2022-%25EB%2585%2584-%25EC%2598%2588%25EC%2583%2581-%25EC%258B%259C/ (port 80)