- Changing the Prompt
- Connecting to Services
- Sessions
- Configuring your Port
- Additional Local Server Commands
Introduction
This chapter focuses on using the Communications Server from a non-privileged
port. The discussion assumes you do not have privileged access to the
communications server and are confined to a subset of commands that
allow you to modify your own port and display communications server
characteristics and services.
If you are working on a secure or limited view port, you may get error
messages when trying some of the commands discussed. On a secure port
you are restricted to commands that affect that port only. On a limited-view
port, in addition, you are not able to SHOW or LIST services or Internet
databases. 'Online Help' in this chapter tells you how to find out what
commands are available to you.
Commands and procedures are presented in this chapter in their simplest
form. Refer to the EasyServer Command Reference Manual [PDF
- 417KB] for additional information.
Logging In
When you are at a terminal attached to a port, the local prompt should
appear on your screen. When the prompt appears, you're in local mode
(i.e., you're connected to the Communications Server and can communicate
with it).
Note: If your screen is blank, press <Enter> a few times until a
prompt appears.
A typical login might look like this:
ETS-X Communications
Server Vx.xxx
Port 1:
PORT_01
Terminal:
wy60 [Status Line, Page Memory]
Username
None
Enter username: dai
Please type HELP for
assistance
Local 1>
In this case, user dai has connected to port 1, and the communications
server has recognised the attached terminal as a Wyse WY-60 with status
line and page memory capabilities, both of which the Communications
Server supports. Note that this port type has been set previously to
DYNAMIC, allowing the communications server to recognise the type of
the attached terminal (refer to the CHANGE PORT TYPE command in the
EasyServer Command Reference Manual [PDF
- 417KB]).
Logging Out
When you're finished working with the Communications Server, close
all sessions and type LOGOUT at the local prompt. You can remain logged
in to the communications server indefinitely, although from a security
standpoint it's not a good idea.
If you don't log out of the server, however, and you leave sessions
connected, many hosts will time out a connection after a set period
of inactivity. The communications server supports an inactivity logout
timer, which can be set to log out of a port after a period of 1 to
120 minutes of inactivity.
Use the SHOW PORT command to find out if the communications server automatically
logs out of a port after a period of inactivity. If enabled, INACTIVITY
LOGOUT appears in the Enabled Characteristics field.
Online Help
Online help is a database of information that includes Communications
Server command descriptions and syntax (reference help) and a tutorial
on specific topics (tutorial help). Access online help from local mode
by typing HELP at the local prompt. A display appears listing all commands
available to you, including the tutorial. For information on any of
the commands listed, type the name of the command.
Or, if you know the name of the subject you need help with, you can
type HELP followed by the subject name. The following example shows
how to get help with the BROADCAST command.
Local 1> HELP BROADCAST
Information about the BROADCAST command appears on the screen.
The online help and tutorial are also available using a Web browser.
Refer to Server Administration,
'HTTP (Web) Service' section for details on accessing the Communications
Server using a Web browser.
Tutorial Help
Tutorial help provides topic-oriented instructions. You can access
tutorial help from local mode by typing:
Local 1> HELP TUTORIAL
The server displays a numbered list of tutorial topics from which you
can choose. For example, for a tutorial on setting up a printer, at
the tutorial sub-topic prompt, type:
TUTORIAL Subtopic? PRINTER
Note: Alternatively, you can type the number of the listed item.
Reference Help
Reference help provides online reference for all Communications Server
commands available to the current privilege level of your port. To access
online help, type:
Local 1> HELP
The server responds with a list of the commands available to you, followed
by a topic prompt. For information on the SET command, for example,
type:
Topic? SET
The server displays a brief description of the SET/DEFINE/CHANGE command,
its syntax, and definitions of as many command parameters as will fit
on the screen. Press <Enter> to see the rest of the parameters.
The parameters are listed again in columns at the end of the display,
and you are given a topic prompt. For information on the SET command
PORT parameter, type:
Subtopic? PORT
Information about the PORT parameter appears.
Alternatively, if you know the complete command for which you want
information, enter the command at the local prompt. For example, to
get information on how to set the port forward switch, type:
Local 1> HELP SET PORT
FORWARD SWITCH
Note: You need not type out complete command words. Type just
enough characters to make each term unique. The above command could
also be typed:
Local 1> H SET POR FORW
SWI
To redisplay options for a topic, enter a question mark (?) at the
topic prompt:
Topic? ?
To return to the previous screen, press <Enter> .
To return to the local prompt, press <Ctrl> Z or press <Enter>
two or three times.
For a brief online discussion of how Reference Help works, type HELP
twice at the local prompt:
Local 1> HELP HELP
Command Completion
You can use command completion to aid in entering commands. Command
completion completes the current command you are entering whenever you
press [Space]. You'll hear a beep if the partial word is incorrect,
and additional information to help you enter the correct command may
be displayed. For example, if you enter the following partial command:
Local 1>> SET PORT COM
and then press [Space], command completion completes the partial command
COM, as shown below.
Local 1>> SET PORT COMMAND
COMPLETION
If a partial command is a value instead of a command, command completion
verifies that the value is syntactically correct (e.g., an Internet
address has the format n.n.n.n). If the value is incorrect, you hear
a beep and a help message appears. For example, to make an entry in
the Internet host table, type:
Local 1>> SET INTERNET
HOST blazer ADDRESS 89-0-0-101
Then press [Space]. The server beeps and displays a help message, such
as the following:
Local 1>> SET INTERNET
... ADDRESS 89-0-0-101
[Must be an IP address]
If a partial word is completed with something you don't want, press
[Tab] to replace the completed word with the next command in the list.
The sequence of commands is in the same order as the online help for
that command. For example, if you type:
Local 1>> SET PORT LO
followed by [Space], the following message appears:
Local 1>> SET PORT LOCAL
SWITCH
If, instead of [Space] you press [Tab], the next argument appears:
Local 1>> SET PORT LOCK
If you press [Tab] again followed by 'ENABLED,' the following message
appears:
Local 1>> SET PORT LOGIN
ACCOUNT ENABLED
If you can't remember the beginning of an argument or you don't know
what comes next in the command, you can type [Space] (not followed by
a partial command) and the first argument appears.
Local 1>> SET PORT PASSWORD
Press [Space] twice, once to complete the PASSWORD command and again
to select the next argument. The following message appears:
Local 1>> SET PORT PASSWORD
ENABLED
Then press another [Tab], and the next argument appears:
Local 1>> SET PORT PASSWORD
DISABLED
Then press another [Tab], and the next argument appears:
Local 1>> SET PORT PASSWORD
NONE
Then press another [Tab], and the next argument appears:
Local 1>> SET PORT PASSWORD
['password']
When an argument appears inside brackets, a typed value is required.
In this example, a quoted password string is required.
Command
Line Edit and Recall
Command line edit and recall is similar to the history feature of most
UNIX system shells and works for ANSI and many ASCII terminals.
To recall a previously entered command, press the up arrow on
your keyboard. Press the down arrow to recall the next
command in your command history.
To edit a command, press the left arrow or right arrow
to position the cursor in the command line, and either type in additional
characters or press <Delete> or <Back Space> (depending
on your keyboard) to remove unwanted characters.
Then press <Enter> to execute the command (the cursor need
not be at the end of the line). Press <Ctrl> U to delete an
entire command line.
Table 6-1 lists the command line editing keys and their functions.
Table 6-1 Editing Keys
