/**
@anchor page_extensions
@page globus_ftp_extensions GridFTP: Protocol Extensions to FTP for the Grid

@section extensions_intro Introduction

The following new feature names are to be included in the FTP server's
response to FEAT if it implements the following sets of functionality

@par PARALLEL
The server supports the SPOR, SPAS, the RETR options mentioned above,
and extended block mode.

@par ESTO
The server implements the ESTO command as described in this document.

@par ERET
The server implements the ERET command as described in this document.

@par SBUF
The server implements the SBUF command as described in this document.

@par DCAU
The server implements the DCAU command as described in this document,
including the requirement that data channels are authenticated by
default, if @ref rfc2228 "RFC 2228" authentication is used to establish
the control channel.
*/
