Ubuntu Manpage: vlock-main - lock current virtual console

NAME

       vlock-main - lock current virtual console

SYNOPSIS

       vlock-main [plugins...]

DESCRIPTION

       vlock-main  is  part of vlock(1), the Virtual Console locking program for Linux.  It locks
       the current session and will only exit if the current user  can  authenticate  themselves.
       The  root  user  will also be able to unlock the session, unless disabled at compile time.
       The command line arguments specify plugins that  should  be  loaded  by  vlock-main.   See
       vlock-plugins(5) for more information.

       If plugin support is disabled at compile time, the only supported argument is "all".

ENVIRONMENT VARIABLES

The following environment variables can be used to change the behavior of vlock-main:

USER

If this variable is when vlock-main is run as root (uid 0) vlock locks the screen
as this user instead of root. The root password will still be able to unlock the
session, unless disabled at compile time.

VLOCK_ALL_MESSAGE

If this variable is set and all consoles are locked its contents will be used as
the locking message instead of the default message.

VLOCK_CURRENT_MESSAGE

If this variable is set and only the current consoles is locked its contents will
be used as the locking message instead of the default message.

VLOCK_MESSAGE

If this variable is set its contents will be used as the locking message instead of
the default. This overrides the former two variables.

VLOCK_TIMEOUT

Set this variable to specify the timeout (in seconds) after which the screen saver
plugins (if any) will be invoked. If this variable is unset or set to an invalid
value or 0 no timeout is used. See vlock-plugins(5) for more information about
plugins.

VLOCK_PROMPT_TIMEOUT

Set this variable to specify the amount of time (in seconds) you will have to enter
your password at the password prompt. If this variable is unset or set to an
invalid value or 0 no timeout is used. Warning: If this value is too low, you may
not be able to unlock your session.

SIGNALS

       Several signals are ignored.  vlock-main will try to exit cleanly if SIGTERM is received.

AUTHORS