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  • bitdays.co.kr/2021/06/11/%25EC%25B2%25AD%25EA%25B5%25AC-%25EC%2586%258C%25ED%2594%2584%25ED%258A%25B8%25EC%259B%25A8%25EC%2596%25B4%25EB%25A5%25BC-%25EB%25B0%2598%25EB%25B3%25B5-%25EC%258B%259C%25EC%259E%25A5-%25EB%25AF%25B8%25EB%259E%2598-%25EA%25B0%259C%25EB%25B0%259C-%25EC%25B5%259C%25EA%25B3%25A0%25EC%259D%2598-%25ED%259A%258C%25EC%2582%25AC/ (port 80)