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HP OpenVMS DCL Dictionary
LOGIN Procedure
Initiates an interactive terminal session.
Format
[Ctrl/C]
[Ctrl/Y]
[Return]
Description
There is no LOGIN command. You signal your intention to access the
system by pressing Return, Ctrl/C, or Ctrl/Y, on a terminal not
currently in use. The system prompts for your user name and your
password (and your secondary password, if you have one) and then
validates them.
Specify the optional qualifiers immediately after you type your user
name; then press Return to get the password prompts.
The login procedure performs the following functions:
- Validates your right to access the system by checking your user
name and passwords against the entries in the system's user
authorization file (UAF)
- Establishes the default characteristics of your terminal session
based on your user name entry in the UAF
- Executes the command procedure file SYS$SYLOGIN.COM if one exists
- Executes either the command procedure file named LOGIN.COM if one
exists in your default directory, or the command file defined in the
UAF, if any
Some systems are set up with a retry facility for users who are
accessing the system from remote or dialup locations. With these
systems, when you make a mistake typing your user name or password, the
system allows you to reenter the information. To reenter your login
information, press Return. The system displays the user name prompt
again. Now retype your user name and press Return to send the
information to the system. The system displays the password prompt.
(There is both a limit to the number of times you can retry to enter
your login information and a time limit between tries.)
Qualifiers
/CLI=command-language-interpreter
Specifies the name of an alternate command language interpreter (CLI)
to override the default CLI listed in the UAF. The CLI you specify must
be located in SYS$SYSTEM and have the file type .EXE.
If you do not specify a command interpreter by using the /CLI qualifier
and you do not have a default CLI listed in the UAF, the system
supplies the qualifier /CLI=DCL by default.
/COMMAND[=filespec] (default)
/NOCOMMAND
Controls whether to execute your default login command procedure when
you log in. Use the /COMMAND qualifier to specify the name of an
alternate login command procedure. If you specify a file name without a
file type, the default file type .COM is used. If you specify the
/COMMAND qualifier and omit the file specification, your default login
command procedure is executed.
Use the /NOCOMMAND qualifier if you do not want your default login
command procedure to be executed.
/CONNECT (default)
/NOCONNECT
Specifies whether or not to reconnect to a virtual terminal.
/DISK=device-name[:]
Specifies the name of a disk device to be associated with the logical
device SYS$DISK for the terminal session. This specification overrides
the default SYS$DISK device established in the UAF.
/LOCAL_PASSWORD
Requests OpenVMS authentication using the user name and password
information that is stored in the SYSUAF.DAT file. This qualifier is
used to override external authentication if external authentication is
unavailable.
/NEW_PASSWORD
Requires that you change the account password before logging in (as if
the password had expired). Use this qualifier as a shortcut if you had
intended to change your password after login, or if you suspect that
your password has been detected.
/TABLES=(command-table[,...])
/TABLES=DCLTABLES (default)
Specifies the name of an alternate CLI table to override the default
listed in the UAF. This table name is considered a file specification.
The default device and directory is SYS$SHARE and the default file type
is .EXE.
If a logical name is used, the table name specification must be defined
in the system logical name table.
If the /CLI qualifier is set to DCL, the /TABLES qualifier defaults to
the correct value. If the /TABLES qualifier is specified without the
/CLI qualifier, the CLI specified in the user's UAF will be used.
Examples
| #1 |
[Ctrl/Y]
Username: HOFFMAN
Password: <PASSWORD>
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In this example, pressing Ctrl/Y allows you to access the operating
system, which immediately prompts for a user name. After validating the
user name, the system prompts for the password but does not echo it.
| #2 |
[Return]
Username: HIGGINS/DISK=USER$
Password: <PASSWORD>
Welcome to OpenVMS Alpha (TM) Operating System, Version 7.3 on node LSR
Last interactive login on Tuesday, 18-DEC-2001 08:41
Last non-interactive login on Monday, 19-DEC-2001 15:43
$ SHOW DEFAULT
USER$:[HIGGINS]
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In this Alpha example, the /DISK qualifier requests that the default
disk for the terminal session be USER$. The SHOW DEFAULT command shows
that USER$ is the default disk.
| #3 |
[Return]
Username: JONES
Password: <PASSWORD>
User authorization failure
[Return]
Username: JONES
Password: <PASSWORD>
Welcome to OpenVMS Alpha (TM) Operating System, Version 7.3 on node LSR
Last interactive login on Tuesday, 15-DEC-2001 09:16:47.08
Last non-interactive login on Monday, 14-DEC-2001 17:32:34.27
1 failure since last successful login.
$
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This example shows the "User authorization failure" message,
which indicates that the password has been entered incorrectly. After
you successfully log in, a message is displayed showing the number of
login failures since your last successful login. This message is
displayed only if login failures have occurred.
| #4 |
[Return]
Username: JOYCE
Password: <PASSWORD>
Welcome to OpenVMS Alpha (TM) Operating System, Version 7.3 on node LSR
Last interactive login on Tuesday, 15-DEC-2001 09:16:47.08
Last non-interactive login on Monday, 14-DEC-2001 17:32:34.27
WARNING - Primary password has expired; update immediately.
$
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This example shows the WARNING message, which indicates that your
primary password has expired. You must use the SET PASSWORD command to
change your password before logging out, or you will be unable to log
in again.
For more information on changing your password, see the description of
the SET PASSWORD command in this manual.
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