IntScription()
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  • It is a standard protocol provided by TCP/IP for copying a file from one host to another File Transfer Protocol.png

  • Port number 20 (DATA) and 21 (Control)
  • Data connection is non-persistent (for security purpose)
  • Control connection is persistent
  • Not inband
  • Reliable (uses TCP)
  • Stateful (each and every file information
  • history is known)

File Transfer

  1. Retrieving a file (server to client)
  2. Storing a file (client to server)
  3. Directory listing (server to client)