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You are here: PacificCable.com RFC 959

RFC 959

Network Working Group
Request for Comments: 959

Obsoletes RFC: 765 (IEN 149)

J. Postel
J. Reynolds
ISI
October 1985

Status of this Memo

This memo is the official specification of the File Transfer Protocol (FTP). Distribution of this memo is unlimited.

The following new optional commands are included in this edition of the specification:

CDUP (Change to Parent Directory), SMNT (Structure Mount), STOU (Store Unique), RMD (Remove Directory), MKD (Make Directory), PWD (Print Directory), and SYST (System).

Note that this specification is compatible with the previous edition.

Table of Contents

• 1. INTRODUCTION
• 2. OVERVIEW
  • 2.1. HISTORY
  • 2.2. TERMINOLOGY
  • 2.3. THE FTP MODEL
• 3. DATA TRANSFER FUNCTIONS
  • 3.1. DATA REPRESENTATION AND STORAGE
    • 3.1.1. DATA TYPES
      • 3.1.1.1. ASCII TYPE
      • 3.1.1.2. EBCDIC TYPE
      • 3.1.1.3. IMAGE TYPE
      • 3.1.1.4. LOCAL TYPE
      • 3.1.1.5. FORMAT CONTROL
    • 3.1.2. DATA STRUCTURES
  • 3.2. ESTABLISHING DATA CONNECTIONS
  • 3.3. DATA CONNECTION MANAGEMENT
  • 3.4. TRANSMISSION MODES
  • 3.5. ERROR RECOVERY AND RESTART
• 4. FILE TRANSFER FUNCTIONS
  • 4.1. FTP COMMANDS
    • 4.1.1. ACCESS CONTROL COMMANDS
    • 4.1.2. TRANSFER PARAMETER COMMANDS
    • 4.1.3. FTP SERVICE COMMANDS
  • 4.2. FTP REPLIES
• 5. DECLARATIVE SPECIFICATIONS
  • 5.1. MINIMUM IMPLEMENTATION
  • 5.2. CONNECTIONS
  • 5.3. COMMANDS
  • 5.4. SEQUENCING OF COMMANDS AND REPLIES
• 6. STATE DIAGRAMS
• 7. TYPICAL FTP SCENARIO
• 8. CONNECTION ESTABLISHMENT
• APPENDIX I - PAGE STRUCTURE
• APPENDIX II - DIRECTORY COMMANDS
• APPENDIX III - RFCs on FTP
• REFERENCES

• Original text document
• Complete HTML RFC (TAR, TGZ, or ZIP format)