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i NCSA Telnet
Introduction i
National Center for Supercomputing Applications
June 1991
June 1991
Introduction
Overview
This introduction presents an overview of the capabilities and
features of NCSA Telnet. The organization and use of this manual
are described and notational conventions explained.
About NCSA Telnet
NCSA Telnet Version 2.3 for the PC provides interactive access
from an IBM PC or compatible to telnet hosts on TCP/IP networks.
NCSA Telnet is an implementation of DARPA standard telnet
with added features that take advantage of the local processing
power of the PC.
Special Features
Special features of NCSA Telnet for the PC include:
Ñ VT100 emulation
Ñ Local printer support for VT100 emulation
Ñ Simultaneous logon to a number of computers
Ñ Ability to capture text to the PC disk or printer
Ñ File transfer server (standard FTP)
Ñ Remote copy server (rcp) for use with UNIX hosts
Ñ Ability to take full advantage of PC colors
Ñ Topview/Windows compatibility
Ñ Tektronix 4014 emulation
Ñ Added applications such as: lpr, lpq, lprm, rexec, rsh, finger,
setclock (all similar to UNIX utilities)
Ñ Domain name lookup
Ñ Optional use of RARP and Bootp for determining PC's IP
address
Ñ Support for Linemode protocol
Ñ Scrollback with mouse support
Ñ Cut and paste capabilities for text between sessions
Ñ Keyboard mapping
Ñ Text output mapping
Ñ Better message routing of telnet options to console screen
Ñ Ability to dump screens to a capture file
System Requirements
To use NCSA Telnet you must have the following hardware:
Ñ IBM PC, PC/XT, PC/AT, IBM PS/2 model 30, or "true"
compatible computer with one of the following Ethernet adapter
boards:
Appletalk Card
DecNet Card
3COM 3C501 Etherlink
3COM 3C503
3COM 3C505
AT&T Starlan 10
Western Digital WD8003EB
MICOM NI5210
Ungermann-Bass PC-NIC (same as IBM Baseband Adapter)
Western Digital WD8003E EtherCard PLUS
Ñ or IBM PS/2 models 50,60 or 80, or "true" compatible computer
with one of the following Ethernet adapter boards:
Ungermann-Bass NICps/2
3COM 3C523 Etherlink/MC
Western Digital WD8003A
Ñ The following adapters have been tested successfully with
packet drivers:
3Com's 3C501, 3C503, 3C505, 3C507, and 3C523
Any SMC-mode ARCnet card
Any AT&T Ethernet or StarLAN card
D-Link Systems' DE-600 Pocket LAN Adapter
Simulated driver over NetWare's IPX
BICC Data Networks' ISOLAN
Apple Computer's LocalTalk PC Card
Sun/TOPS (Sitka) FlashCard
Simulated driver over NetBIOS
NCR's ET-105B
Novell's NE1000, NE2000, and clones
Racal-InterLan's NI5010, NI5210, NI6510, and NI9210
Ungermann-Bass's NIC and NICps/2
All Western Digital's models
Ñ 384K minimum memory
Ñ Ethernet or Thin Ethernet to connect the PC and other computers
To use NCSA Telnet you must have the following software:
Ñ PC-DOS or MS-DOS Version 2.0 or later
Ñ a standard text editor (helpful when editing the configuration
file)
Use of This Manual
This section describes the organization of this manual, and the
conventions and nomenclature used in developing it.
Manual Contents
This manual is organized into the following chapters:
Chapter 1, "Starting and Quitting NCSA Telnet," describes how to
start NCSA Telnet and how to open and close a connection between
your PC and one remote host.
Chapter 2, "Introduction to Managing Sessions," introduces NCSA
Telnet's capability for multiple connections. It also discusses
standard VT100 key emulation, keys used for common EDT
operations, and usage of a capture file.
Chapter 3, "More about Managing Sessions," discusses multiple
sessions in detail. The Parameters menu options, DOS shell
feature, and several advanced functions are also described.
Chapter 4, "Utility Programs," outlines in detail some helpful
command programs which you can implement along with NCSA
Telnet.
Chapter 5, "File Transfer," outlines procedures for transferring
files between a PC and a telnet host.
Chapter 6, "Tektronix 4014 Emulation," discusses NCSA Telnet's
ability to emulate a Tektronix 4014 graphics terminal.
Chapter 7, "Installation and Configuration," contains
information for system administrators (and other experienced
users) to use when installing and customizing a system.
Appendix A, "Error Conditions," describes some of NCSA Telnet's
error messages, as well as their causes and solutions.
Appendix B, "NCSA Telnet Command Reference," lists
commands available from the PC keyboard.
Appendix C, "Configuration File Summary," lists the keywords
for configuration file parameters.
Appendix D, "FTPBIN Command Reference," describes the
FTPBIN commands that the program uses.
Appendix E, "Key-mapping," details the key-mapping elements
NCSA Telnet for the PC incorporates from the MS-Kermit
program.
Appendix F, "Obtaining NCSA Software," outlines the procedures
for obtaining NCSA software via FTP, an archive server, or U.S.
mail.
Form of Presentation
Figure I.1 shows some typical screen/user interactions using the
conventions employed in this manual. Those conventions, and
others, are explained here.
Figure I.1 Example of
Notational
Conventions
C:\> telnet machinename [machinename...]
National Center for Supercomputing Applications
NCSA Telnet for the PC version 2.2
(c) Copyright 1987,1988 Board of Trustees of the University of
Illinois
ALT-H presents a summary of special keys
4.2 BSD UNIX (newton)
login:
dothis Information shown in courier boldface type
represents user entries.
ALT-key Press and hold the ALT key and then press the
key designated by key. Then release both
keys at the same time.
variable Do not enter the actual characters shown.
Command line characters shown in
lowercase courier bold italic type represent an
entry that may consist of different characters
every time you make the entry. In other
words, it is a variable entry. If it indicates a
machine response, it means the actual
wording of the response will vary, depending
on the filename, machinename, and so on.
... Do not enter an ellipsis. The ellipsis
indicates that you may enter more material
similar to the material preceding the ellipsis.
[ ] Do not enter square brackets. Material or
actions presented between square brackets is
optional and should be entered only in certain
cases.