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Which FTP Commands are Supported by EFT Server?

Karla Marsh
EFT

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THE INFORMATION IN THIS ARTICLE APPLIES TO:

  • EFT Server, all versions

QUESTION

Which FTP Commands are Supported by EFT Server?

ANSWER

Below is the list of FTP commands that EFT Server supports and will give a known response to, followed by a few commands that it recognizes, but gives an error message of "202 Command not implemented, superfluous at this site." (Confirmed by GlobalSCAPE Engineering on 3-10-2010)

For more information about these FTP commands, see RFC959 at http://www.faqs.org/rfcs/rfc959.html.

Cmd

RFC

Description

ABOR

RFC959

Abort a file transfer
ALLO

RFC959

Allocates sufficient storage space to receive a file. e.g., ALLO size [R max-record-size]
APPE

RFC959

Append data to the end of a file on the remote host. e.g., APPE remote-filename
AUTH

RFC 2228

Used to initiate an SSL encrypted session
CCC

RFC 2228

Clear Command Channel for FTPS transfers
CDUP

RFC959

Change working directory to the parent of the current directory
CLNT

-

Used to identify the client software to the server. This command serves no functional purpose other than to provide information to the server. EFT does not alter its behavior based on the parameters provided in the CLNT command.
COMB

-

Combines file segments into a single file on EFT. (For information about using the COMB command with EFT, refer to Allowing Multipart Transfers (COMB Command).)
CWD

RFC 697

Change working directory. e.g., CWD remote-directory
DELE

RFC959

Delete remote file
EPRT

RFC 2428

Specifies an extended address and port to which the server should connect
EPSV

RFC 2428

Enter extended passive mode
FEAT

RFC 2389

List all FTP features that EFT supports
HELP

RFC959

Display a list of all available FTP commands
LANG

RFC 2640

Language Negotiation; defaults to English-US, even if a different language is requested.
LIST

RFC959

Send list of file names and details
MDTM

RFC 3659

Display date/time file was modified, in the format YYYYMMDDhhmmss. YYYY is the four-digit year, MM is the month from 01 to 12, DD is the day of the month from 01 to 31, hh is the hours from 00 to 23, mm is the minutes from 00 to 59, and ss is the seconds from 00 to 59.
MKD

RFC959

Create (make) a remote directory
MLSD

RFC 3659

Display an abbreviated list of a remote directory's files and subdirectories
MLST

RFC 3659

Display detailed file or directory information
MODE

RFC959

Sets the mode in which data is to be transferred to S (Stream) or Z (Compressed); The default mode is Stream. (Only "s" or "z" supported.)
NLST

RFC959

Send list of file names (no details)
NOOP

RFC959

Do nothing; often used to keep the session alive.
OPTS

RFC 2389

Used to specify optional parameters for the command that follows the OPTS command, if that command supports such optional parameters. (The commands "mslt" and "mode z level X," where x=1-9, are supported.)
PASS

RFC959

Send password. e.g.,  PASS <password>
PASV

RFC959

Enter passive mode
PBSZ

RFC 2228

Protection Buffer Size. If EFT receives this command, it sets it to 0.
PORT

RFC959

Specifies the host and port to which EFT should connect for the next file transfer.
PROT

RFC 2228

Data Channel Protection Level. Used to set the protection level to be used for data transfers. PROT P is used to secure the data channel; PROT C is used to clear the data channel.
PWD

RFC959

Display current directory (print working directory)
QUIT

RFC959

Closes the connection and terminates the FTP session.
REIN

RFC959

Reinitialize the connection and cancels the current user/password/account information
REST

RFC 3659

Sets the point at which a file transfer should start. e.g.,  REST position
RETR

RFC959

Begins transmission of a file from the remote host. Must be preceded by either a PORT command or a PASV command to indicate where EFT should send data. e.g., RETR remote-filename
RMD

RFC959

Deletes the named directory on the remote host. e.g., RMD remote-directory
RNFR

RFC959

Rename from (followed by an RNTO command to specify the new name for the file) e.g., RNFR from-filename
RNTO

RFC959

Rename to (after sending an RNFR command to specify the file to rename, this command is used to specify the new name for the file) e.g., RNTO to-filename
SITE

RFC959

Site-specific commands. e.g., SITE site-specific-command
SIZE

RFC 3659

Display size of a file. e.g., SIZE remote-filename
SSCN

-

(Set Secured Client Negotiation) Extension for secure site-to-site transfers over SSL/TLS connections
STAT

RFC959

Display server status. e.g., STAT [remote-filespec]
STOR

RFC959

Begins transmission of a file to the remote site. Must be preceded by either a PORT command or a PASV command so that EFT knows from where to accept data. e.g., STOR remote-filename
STOU

RFC959

Begins transmission of a file to the remote site; the remote filename will be unique in the current directory.
SYST

RFC959

Displays a string of "215 UNIX Type: L8"
TYPE

RFC959

Sets the type of file to be transferred. For example: TYPE type-character [second-type-character] "type-character" can be A (ASCII text) or I (image, binary data) The second-type-character specifies how the text should be interpreted. It can be N (Non-print; not destined for printing. This is the default if second-type-character is omitted), T (Telnet format control <CR>, <FF>, etc.), or C (ASA Carriage Control).
USER

RFC959

Send username. e.g., USER username
XCUP

RFC 775

(same as CDUP)
XCWD

-

(same as CWD)
XMKD

RFC 775

(same as MKD)
XNOP

-

(same as NOOP)
XPWD

RFC 775

(same as PWD)
XRMD

RFC 775

(same as RMD)
XCRC

-

Compute CRC32 checksum on specified file

The following commands are recognized, but not supported:

Cmd

RFC

Description

ACCT RFC959 Send account information
SMNT RFC959 Mount a different file system data structure without altering login or accounting information
STRU RFC959 Set file transfer structure
Details
Last Modified: 2 Months Ago
Last Modified By: kmarsh
Type: FAQ
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