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FTP ( vsFTP )

FTP ( vsFTP ). reniowood SPARCS Wheel Seminar. FTP. File Transfer Protocol 파일 전송 프로토콜 TCP/IP 응용 계층 (Application Layer) HTTP, POP3, SMTP, … 명령 연결 , 데이터 전송 연결. FTP. #$%$. 명 령 연결. B. A. *^@#. C. 21. *&@#. active or passive. 1035. Active mode. B. 1035. A. 1099. C. 20.

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FTP ( vsFTP )

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  1. FTP (vsFTP) reniowood SPARCS Wheel Seminar

  2. FTP • File Transfer Protocol • 파일 전송 프로토콜 • TCP/IP 응용 계층(Application Layer) • HTTP, POP3, SMTP, … • 명령 연결, 데이터 전송 연결

  3. FTP #$%$ • 명령 연결 B A *^@# C 21 *&@#

  4. active or passive 1035 • Active mode B 1035 A 1099 C 20 1099 23432 23432

  5. active or passive • Passive mode B 1561 A 5123 C 5123 5612 5456 A : 1561 B : 5612 C : 5456

  6. vsFTP • very secure FTP • 매우 보안 FTP • 여러 리눅스에서 쓰이는 보안에 강한 FTP서버 소프트웨어

  7. vsFTP 설치 • # apt-get install vsftpd • /etc/init.d에 등록되어 있다.

  8. vsFTP 설정 • /etc/vsftpd.conf • # vi /etc/vsftpd.conf

  9. standalone? • 독자적으로 실행되는 데몬 • 높은 메모리 소모, 빠른 반응 • 웹 서버, 데이터베이스 서버, 메일 서버 등 • inetd type daemon • inet데몬이 실행 중에 요청을 받으면 실행시켜주는 데몬 • 낮은 메모리 소모, 느린 반응

  10. 끝

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