@chapter Modifications to TCP/IP Applications
@label[chapter-tcp-app]

@section FTP

The most significant changes to the File Transfer Protocol are
internal and not visible to the user.

The command interface to FTP, formerly called @l(ftp:cmd),
is now defined as
@see[ftp:ftp][fun].
Various options have been modified and improved,
and the interface is more robust.

@section Telnet

The Telnet routines (terminal access via TCP/IP)
have been expanded and enhanced.
See Section @ref[section-telnet], @b(@nameref[section-telnet]), for details.

@section SMTP

The SMTP (Simple Mail Transfer Protocol) server
has not changed from release 3;
see the @i[Release 3.0 TCP/IP Installation and Release Notes]
for information and limitations.

@section Imagen Printer Driver

The networking and printer software now support Imagen laser printers
that are accessed remotely via TCP/IP (Imagen model IP/II and compatibles).
@cindex[Imagen printer]
This is a popular printing setup, since much of the processing is
done off-line by the Imagen.
With release 4, the @l(:IMAGEN) driver is fully supported
and much improved over previously distributed versions.

See Section @ref[section-imagen], @b(@nameref[section-imagen]), for details.

@section DISK

Use of the TCP DISK Server is documented in Section @ref[section-disk], @nameref[section-disk].




















@c end tcp-app1