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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.

SEE ALSO

       vlock(1), vlock-plugins(5)

AUTHORS

       Frank Benkstein <frank-vlock@benkstein.net>