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HP OpenVMS systems documentation |
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TELNET> SHOW DEVICE/FULL
Device TNA7:
Access port name: "Host: 16.99.999.140 Port: 1310"
Characteristics: (none)
Connection attempts: 0 (tries)
Connection interval: 0 (seconds)
Connection timeout: 0 (seconds)
Data high limit: 512 (bytes at VCI port)
Data low limit: 256 (bytes at VCI port)
Idle interval: 0 (seconds)
Idle timeout: 0 (seconds)
Network device name: BG266:
Protocol: TELNET
Local address: 16.99.999.100 (condor)
port: 23
Remote address: 16.99.999.140 (pigdog.dec.com)
port: 1310
Service type: None
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.
.
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Displays detailed information about all TNA devices that exist on the local system. The information shown in the example is output for each TNA device.
Displays current TELNET or TN3270 parameter settings. If you run multiple sessions, the display applies to the active session.
SHOW PARAMETERS
display
TELNET> SHOW PARAMETERS
Will flush output when sending interrupt characters
Won't send interrupt characters in urgent mode
Will map carriage return on output
Won't recognize certain control characters
Won't show option negotiation
Won't print network data flow in hexadecimal
[^^] echo
[^]] escape
[^?] erase
[^O] flushoutput
[^C] interrupt
[^U] kill
[^Y] quit
[^T] areyouthere
TELNET>
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Displays the parameter settings for the active session, revealing the following information:
- Automatic flushing (AUTOFLUSH) of output is enabled.
- Sending of interrupt characters in urgent mode (AUTOSYNCH) is disabled.
- Mapping of received carriage returns (CRMOD) is enabled.
- Mapping of carriage returns as Return LP on output (CRLF) is disabled.
- Interpretation of control characters (LOCAL_CHARS) is enabled. The remote host does not recognize certain control characters; therefore, the local host interprets them.
- Display of option negotiations (OPTIONS_VIEW) between the local and remote hosts is disabled.
- The display or printing of data in hexadecimal (DEBUG) is disabled. Therefore, TELNET displays the data in readable text only.
- The control characters are interpreted as listed.
Displays the session information about your current TELNET sessions (or TN3270 session) and, if you are running multiple TELNET sessions, about the waiting sessions.
SHOW SESSION
status
| #1 |
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TELNET> SHOW SESSION
%TELNET-E-NOSESSION, No active session
TELNET> CONNECT LUNA
%TELNET-I-Trying, Trying... 192.1.2.3
%TELNET-I-SESSION, Session 01, host luna, port 23
-TELNET-I-Escape, Escape character: '^]'
LUNA -- Unauthorized access is prohibited
Username: BURNS
Password: (password not echoed)
Welcome to OpenVMS Alpha Version 7.3 on node LUNA
$ [Ctrl/]] (characters not echoed)
TELNET> SHOW SESSION
Session 01, host LUNA, port 23 (default active port)
TELNET>
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Displays information about current sessions. The information returned for the first SHOW SESSION command reveals that the local host has no active sessions. The user then connects to host LUNA and returns to the TELNET prompt to display session information once again. This time, the SHOW SESSION command displays information about the connection with LUNA.
| #2 |
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TELNET> CONNECT ESTRELLA 23 IBM-3278-2
.
.
.
% [Ctrl/]] (characters not echoed)
TELNET> SHOW SESSION
Session 01, host LUNA, port 23
Session 02, host ESTRELLA, port 23 (default active session)
TELNET>
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Here, the same user has established another connection, this time to host ESTRELLA. The SHOW SESSION command displays information about all sessions, revealing that the current active session is with host ESTRELLA.
Displays the status of the current TELNET or TN3270 session and, if you are running multiple sessions, about the waiting sessions. Status information can include information about open sessions, such as which one is active and which ones are waiting, the escape character and options currently set, and the number of data overruns and suspended network I/Os (inputs/outputs) detected.
SHOW STATUS
status
| #1 |
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TELNET> SHOW STATUS
No open sessions
Escape character: '^]'
TELNET> CONNECT LUNA
%TELNET-I-Trying, Trying ... 192.1.2.3
%TELNET-I-SESSION, Session 01, host LUNA, port 23
-TELNET-I-Escape, Escape character: '^]'
LUNA -- Unauthorized access is prohibited
Username: BURNS
Password: (password not echoed)
Welcome to OpenVMS Alpha Version 7.3 on node LUNA
$ [Ctrl/]]
TELNET> SHOW STATUS
Session 1 Active Host LUNA Port 23
Operating Mode: Character-at-a-time
Escape character: '^]'
Options:
Echo - Remote
Terminal Type - Local
Terminal Type - VT300
Suppress Go Ahead - Local
Suppress Go Ahead - Remote
Terminal Dataoveruns: 0
Suspended Network I/Os: 0
TELNET>
Session 1 Active Host LUNA
Operating Mode: Character-at-a-time
Escape character: '^]'
Options:
Echo - Remote
Terminal Type - Local
Terminal Type - DEC-VT300
Suppress Go Ahead - Local
Suppress Go Ahead - Remote
Terminal Dataoveruns: 0
Suspended Network I/Os: 0
TELNET>
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The user enters a SHOW STATUS command, which reveals that no active sessions have been established. After the user connects to host LUNA, the next SHOW STATUS command displays information about the active session with LUNA.
| #2 |
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TELNET> CONNECT ESTRELLA 23 IBM-3278-2
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.
.
% [Ctrl/]] (characters not echoed)
TELNET> SHOW STATUS
Session 2 Active Host ESTRELLA Port 23
Operating Mode: Character-at-a-time
Escape character: '^]'
Options:
Echo - Remote
Terminal Type - Local
Terminal Type - VT300
Suppress Go Ahead - Local
Suppress Go Ahead - Remote
Terminal Dataoveruns: 0
Suspended Network I/Os: 0
Session 1 Waiting Host LUNA Port 23
TELNET>
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Here, the user has established an additional session, this time with host ESTRELLA. The SHOW STATUS command displays information about the currently active session with ESTRELLA and the waiting session.
Suspends your current TELNET or TN3270 session and returns you to the local DCL prompt.To resume your session, log out at the DCL prompt.
SPAWN
z
% date
Fri Sep 11 14:16:39 EDT 2002
% [Ctrl/]] (characters not echoed)
TELNET> SPAWN
$ SHOW TIME
11-Sep-2002 14:16:41
.
.
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$ LOGOUT
Process GROUP_1 logged out at 11-Sep-2002 14:27:18.63
TELNET> RESUME
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The user returns to the TELNET prompt from the active session with a remote UNIX host. The user then enters the SPAWN command and, at the DCL prompt, displays the time and several other commands (not shown) before logging out and returning to the TELNET prompt to resume the active session.
Starts a TELNET session and does one of the following:
- Displays the TELNET prompt.
- Establishes a connection to a remote host.
- Establishes a connection to a remote host and runs TN3270.
TELNET [ host ] qualifier(s) [ port ] [unit ]
[ /AUTHENTICATE]
[ /BIND_SESSION network_device
[ /CREATE_SESSION [ /[NO]TIMEOUT=option [/PERMANENT] /PROTOCOL=protocol]]
[ /FORWARD
telnet [ host ]
host
Required with the /CREATE_SESSION qualifier; optional in all other cases. Default: None.Remote host to which you want to connect. Specify one of the following:
- Host name
- IP address
port
Required with the /CREATE_SESSION qualifier; ignored in all other cases. Default: None.Specifies the remote port to which you want to connect the pseudo device.
unit
Required with the /DELETE_SESSION qualifier; optional with the /CREATE_SESSION qualifier; ignored in all other cases. Default: 0.With the /CREATE_SESSION qualifier, specifies the unit number you want associated with the network terminal. The default of 0 allows the TELNET software to select the next available unit number.
With the /DELETE_SESSION qualifier, specifies the unit number of the network terminal you want to delete.
/AUTHENTICATE
Optional. Default: None.Specifies that you want the TELNET session to use Kerberos features.
Note
The /AUTHENTICATE qualifier also can be used with the TELNET commands OPEN and CONNECT./BIND_SESSION network_device
Optional. Default: None.Binds a TELNET terminal device to an existing network device. If the bind is successful, the DCL symbol $TELNET_DEVICE contains the TNA device name.
/CREATE_SESSION
Optional. Default: None.Specifies that TELNET should create a pseudo device (network terminal) and connect it to the specified remote port. For additional information, see the CREATE_SESSION command. You can use the following qualifiers with CREATE_SESSION:
- /NOTIMEOUT
- /TIMEOUT=option
Options include:NOIDLE
IDLE=delta_time_interval
Specifies the delta time interval to wait with no activity before closing the connection. The general delta time format is hh:mm:ss:cc.
NORECONNECT
RECONNECT=delta_time_interval
Specifies the delta time interval to wait before retrying a connect request. The general delta time format is hh:mm:ss:cc.
- /PERMANENT Optional.
- /PROTOCOL=option
Optional. Default: NONE.
Options include:
- NONE
Data is sent with no interpretation (raw).- NVT
Network Virtual Terminal (NVT), TELNET's internal representation of a standard network terminal. NVT format is standard 7-bit ASCII code transmitted in 8-bit octets, the canonical form of data representation used by both the client and the server.- TELNET
Standard TELNET protocol.- RLOGIN
Standard RLOGIN protocol./DELETE_SESSION
Optional. Default: None.Specifies that TELNET should delete the specified pseudo device (network terminal). For additional information, see the DELETE_SESSION command.
/FORWARD
/NOFORWARD
Optional. Default: /NOFORWARD.Forwards a copy of your Kerberos tickets to the remote host. The /NOFORWARD qualifier overrides any forwarding specified in your machine's configuration files. You must request forwardable tickets at the same time that you issue the KINIT command.
You must use the /AUTHENTICATE qualifier when you specify the /FORWARD qualifier.
/LOG_FILE=file
Optional. Default: No logging.An optional log file that contains all session output. Using this option does not affect your terminal output. You cannot use this option for TN3270 sessions.
/NOINTERACTIVE
Optional. Default: TELNET command mode.Disables the capability of using the escape character to leave a session and return to the TELNET prompt. This option is useful when the TELNET command is referenced in a command procedure in a captive account.
/PORT=n
Optional. Default: 23.Remote port to which you want your TELNET process to connect. Use this qualifier only if you are connecting to a host that does not use the standard TELNET port.
/REALM=realm-name
Optional.Requests Kerberos tickets for the remote host in the specified realm, instead of determining the realm itself.
You must use the /AUTHENTICATE qualifier when you specify the /REALM qualifier.
/TERMINAL_TYPE=type
Optional. Default: None.The type of terminal to emulate. Enter the full specification for one of these terminals:
- IBM-3278-2
- IBM-3278-3
- IBM-3278-4
- IBM-3278-5
- VT100
- VT200
- VT300
- VT400
- VT500
/UNBIND_SESSION network_device terminal_device
Optional.Unbinds a network device (BGx:) from a TELNET terminal device (TNAx:) that was initially bound by a BIND_SESSION command or qualifier.
| #1 |
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$ TELNET
TELNET> ENABLE DEBUG
TELNET> SET TERMINAL /DEVICE=VT300
Terminal type is set to VT300
TELNET> CONNECT DEBTS
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In this example, the TELNET command performs the following actions:
- Starts TELNET.
- Customizes the environment.
- Establishes a connection to host DEBTS and sets up the terminal type as VT300.
| #2 |
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$ TELNET MYCOM /TERMINAL_TYPE=IBM-3278-2
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Establishes a TELNET connection to remote host MYCOM and runs TN3270.
| #3 |
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$ TELNET 130.180.5.5
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Establishes a TELNET connection to the host at IP address 130.180.5.5.
| #4 |
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$ TELNET UCOM 31
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Establishes a TELNET connection to remote host ucom at port 31.
| #5 |
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$ TELNET/AUTHENTICATE/REALM=jet.mbs.com terse
%TELNET-I-TRYING, Trying ... 15.21.308.11
%TELNET-I-SESSION, Session 01, host terse, port 23
%TELNET-I-ESCAPE, Escape character is ^]
terse.ucx.ttg.mbs.com
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This example logs in to system terse with Kerberos credentials.
| #6 |
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$ TELNET/AUTHENTICATE/FORWARD terse
%TELNET-I-TRYING, Trying ... 15.21.308.11
%TELNET-I-SESSION, Session 01, host terse, port 23
%TELNET-I-ESCAPE, Escape character is ^]
[Kerberos V5 accepts you as ''j_brown@terse.mbs.com'' ]
[Kerberos V5 accepted forwarded credentials ]
|
This example forwards credentials to host terse for user j_brown .
Starts a TELNET session that runs TN3270 and does one of the following:
- Displays the TELNET prompt.
- Establishes a connection to a remote host.
TN3270 [ host ]
[ /CHARACTER_SET=file ]
[ /KEY_DEFINITIONS=file ]
[ /NATIONAL_CHARACTERS=char_set ]
[ /NOINTERACTIVE ]
[ /PORT=n ]
[ /PRINTER=file ]
[ /STATUS=state ]
[ /TERMINAL_TYPE=IBM-3278-n ]
host
Optional.Remote host to which you want to connect. Specify one of the following:
- Host name
- IP address
/CHARACTER_SET=file
Optional. Default: ORIGINAL.File with the EBCDIC-to-DMCS and the DMCS-to-EBCDIC translation tables.
If you omit this qualifier, TN3270 does the following:
- Uses the translation table named by the default file SYS$LIBRARY:TN3270DEF.TBL, if your system manager has created it.
- Defaults to its own translation table if TN3270DEF.TBL does not exist. The default table maps the EBCDIC set to the equivalent DMCS characters.
If none of these translation tables meets your needs, the system manager can generate a new translation table. (For information about the EBCDIC-to-DMCS translation tables, refer to the HP TCP/IP Services for OpenVMS Management manual.)
Note
To reset the default, do not abbreviate ORIGINAL./KEY_DEFINITIONS=file
Optional. Default: default keyboard layout.Keyboard definition file you created to redefine how the TN3270 key functions correspond to your keyboard layout. This file holds the definitions for alternative keyboard mapping.
/NATIONAL_CHARACTERS=character_set
Optional. Defaults: For 8-bit terminals: MULTINATIONAL
For 7-bit terminals: US_ASCII.National Replacement Character Set (NRCS) for which your terminal is configured. Specify one of the following:
Canadian MULTINATIONAL Dutch Norwegian Finnish Spanish French Swedish German Swiss Italian UK_ASCII Japanese US_ASCII /NOINTERACTIVE
Optional. Default: TELNET command mode.Disables the capability of using the escape character to leave a session and return to the TN3270 prompt. This option is useful when the TN3270 command is referenced in a command procedure in a captive account.
/PORT=n
Optional. Default: 23.Remote port to which you want your TELNET/TN3270 process to connect. Use this qualifier only if you are connecting to a host that does not use the standard TELNET port.
/PRINTER=file
Optional. Default: TN3270PRINT.LIS.File that records your screen's contents when you use the PRINT function.
Directs printer output to either a file or a spooled printer (not a physical printer or terminal).
/STATUS=state
Optional. Default: AUTOMATIC.Determines how the status line operates during your session. Specify one of the following:
AUTOMATIC Status line is displayed. The status line is disabled automatically if the remote host writes data to the area under the status line, or if you type in that space.
The status line is restored automatically when the data is erased.
ON Status line is always displayed. OFF Status line is not displayed. To toggle between ON and OFF, invoke the STATUS function.
/TERMINAL_TYPE=IBM-3278-n
Optional. Default: IBM-3278-2.IBM terminal to emulate. Enter the full specification for one of the following:
- IBM-3278-2
- IBM-3278-3
- IBM-3278-4
- IBM-3278-5
| #1 |
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$ TN3270 MYCOM
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Establishes a TELNET connection to remote host MYCOM. By default, the physical terminal functions as an IBM-3278-2 model terminal.
| #2 |
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$ TN3270 130.180.5.5 /TERMINAL_TYPE=IBM-3278-3 -
_$ /KEY_DEFINITIONS=MY_NUMPAD.FIL
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Establishes a TELNET connection to the host at IP address 130.180.5.5. The terminal functions as if it were an IBM-3278-3 model terminal, and it uses the customized keyboard definition file MY_NUMPAD.FIL.
| #3 |
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$ TN3270 UCOM 31 /TERMINAL_TYPE=IBM-3278-5 /PRINTER=LOG
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Establishes a TELNET connection to remote host ucom :
- The connection is at port 31 on ucom .
- The terminal is functioning as if it were an IBM-3278-5 model terminal.
- During the session at ucom , using the PRINT function records the screen's contents in a file named LOG.LIS.
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