FTP Trong An Toàn Và Bảo Mật Hệ Thống Thông Tin

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
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
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FTP là giao thức truyền file trên mạng TCP/IP
o
Hoạt động dựa trên chuẩn giao thức TCP.
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Là một dịch vụ đặc biệt sử dụng hai cổng: cổng 20 để truyền dữ liệu (data port), 21 để truyền lệnh
(command port).
o
Tùy thuộc vào chế độ truyền tải được sử dụng, trình khách (ở chế độ năng động - active mode) hoặc
trình chủ (ở chế độ bị động - passive mode) đều có thể lắng nghe yêu cầu kết nối đến từ đầu kia của
mình.
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1. Stream mode:
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