FTP/TFTP
FTP
List of FTP commands
| Command | Description |
|---|---|
| ABOR | Abort an active file transfer. |
| APPE | Append. |
| CWD | Change working directory. |
| DELE | Delete file. |
| LIST | Returns information of a file or directory if specified, else information of the current working directory is returned. If the server supports the '-R' command (e.g. 'LIST -R') then a recursive directory listing will be returned. |
| MKD | Make directory. |
| MODE | Sets the transfer mode (Stream, Block, or Compressed). |
| NOOP | No operation (dummy packet; used mostly as keepalives). |
| PASS | Authentication password. |
| PASV | Enter passive mode. |
| PORT | Specifies an address and port to which the server should connect. |
| PWD | Print working directory. Returns the current directory of the host. |
| QUIT | Disconnect |
| REST | Restart transfer from the specified point. |
| RMD | Remove a directory. |
| RNFR | Rename from. |
| RNTO | Rename to. |
| SIZE | Return the size of a file. |
| STOR | Accept data and store data as a file at the server site. |
| TYPE | Sets the transfer mode (ASCII/binary file). |
| USER | Authentication username. |
Active vs Passive FTP[1]
How to remember:
In Active FTP, Server actively opens Data channel.
- ALG dynamically opens ports on following commands:[2]
PASV = Passive FTP PORT = Active FTP
TFTP
- TFTP Connection:
References
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