vlock(1) - Virtual Console lock program



  • VLOCK(1)		    General Commands Manual		      VLOCK(1)
    
    
    
    NAME
           vlock - Virtual Console lock program
    
    SYNOPSIS
           vlock
    
           vlock [ -a,--all ] [ -c,--current ] [ -h,--help ] [ -v,--version ]
    
    DESCRIPTION
           vlock  is  a program to lock one or more sessions on the Linux console.
           This is especially useful for Linux machines which have multiple	 users
           with  access  to	 the console.  One user may lock his or her session(s)
           while still allowing other users to use the  system  on	other  virtual
           consoles.   If  desired,	 the  entire console may be locked and virtual
           console switching disabled.
    
           By default, only the current VC (virtual console) is locked.  With  the
           -a,-all	option	all VCs are locked.  The locked VCs cannot be unlocked
           without the invoker's password.	And, for the paranoid, vlock makes  it
           a  trying  experience  for  those  attempting to guess the password, so
           unauthorized access to session(s) is highly unlikely.
    
           Please note that it is entirely possible to  completely	lock  yourself
           out of the console with the -a,--all option if you cannot remember your
           password!  Unless you are able to kill vlock by logging in remotely via
           a  serial  terminal  or	network,  a  hard  reset is the only method of
           ``unlocking'' the display.
    
           vlock works for console sessions primarily.  However, there is  support
           for  trying  to lock non-console sessions as well, but that support has
           not been well tested.
    
    OPTIONS
           -a,--all
    
    	      Lock all console sessions and disable VC switching.
    
           -c,--current
    
    	      Lock the current session (this is the default).
    
           -h,--help
    
    	      Print a brief help message.
    
           -v,--version
    
    	      Print the version number of vlock.
    
    AUTHOR
           Michael K. Johnson <[email protected]>
    
    
    
    Linux User's Manual		  16 May 1996			      VLOCK(1)
    

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