HP-UX Remote Access Services Administrator's Guide

• Implementation of RFC 1639 (FTP Operation Over Big Address Records (FOOBAR))
This RFC describes a convention for specifying an address other than the default
data port for the connection over which data is transferred.
The commands to accommodate FTP operations over network and transport
protocols are specified as follows:
— LPRT
This command allows you to specify a long address for the transport connection.
Example 2-13 LPRT Command Output
The following displays the output for the LPRT command:
------> LPRT
6,16,254,128,0,0,0,0,0,0,2,96,176,255,254,193,123,47,
2,198,244
200 LPRT command successful
— LPSV
This command requests a server to listen on a data port other than its default
port and to wait for a connection rather than initiate one upon the receipt of a
transfer command.
Example 2-14 LPASV Command Output
The following displays the output for the LPASV command:
ftp> passive
Passive mode on.
-------> LPSV
228 Entering Long Passive Mode (6,16,254,128,0,0,0,0,0,0,
2,96,176,255,254,193,123,47,2,134,7)
NOTE: The FTP client must use the -l option to use the LPSV and LPRT
commands.
The FTP session command longaddr toggles the use of the LPRT (extended port) and
LPSV (extended passive) commands. For more information on the -l option, type man
1 ftp at the HP-UX prompt.
Enabling the Identification Protocol (RFC 1413)
The Identification Protocol, /usr/bin/ident, provides a method to determine the
identity of a user of a particular TCP connection. Given a TCP port number pair, identd
returns a character string that identifies the owner of that connection on the server’s
58 Configuring FTP