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1.1     ! root        1: 
        !             2: 
        !             3: 
        !             4: XHOST(1)           UNIX Programmer's Manual             XHOST(1)
        !             5: 
        !             6: 
        !             7: 
        !             8: NAME
        !             9:      xhost - X window system access control program
        !            10: 
        !            11: SYNOPSIS
        !            12:      xhost [+-]host ...
        !            13: 
        !            14: DESCRIPTION
        !            15:      _X_h_o_s_t is used to add and delete hosts to the list of
        !            16:      machines X will accept connections from.  This is an elemen-
        !            17:      tary form of privacy control, since otherwise X would be
        !            18:      willing to create windows for anyone on the internet.  It is
        !            19:      only sufficient for a workstation (single user) environment,
        !            20:      though it does limit the worst abuses.
        !            21: 
        !            22:      If you want to set up hosts that you always trust, you can
        !            23:      specify them in your login file, or you can specify the
        !            24:      hosts in the file /_e_t_c/_X*._h_o_s_t_s, where * is the number of
        !            25:      the display on the machine.
        !            26: 
        !            27:      Specifying a host name (with an optional leading plus sign)
        !            28:      adds that host to the list; use a leading minus sign to
        !            29:      delete a host.
        !            30: 
        !            31:      DECnet nodes should be specified as names with trailing
        !            32:      ``::''.
        !            33: 
        !            34:      This program can only be executed on the machine the display
        !            35:      is connected to.
        !            36: 
        !            37:      It is possible to remove the current host from the access
        !            38:      list. Be warned that you can't undo this without logging
        !            39:      out.
        !            40: 
        !            41:      _X_h_o_s_t with no arguments will print the current hosts allowed
        !            42:      to access your display.
        !            43: 
        !            44: FILES
        !            45:      /etc/X*.hosts
        !            46: 
        !            47: SEE ALSO
        !            48:      X(8C), xterm(1)
        !            49: 
        !            50: ENVIRONMENT
        !            51:      DISPLAY   -    To find out which X you are using.
        !            52: 
        !            53: AUTHOR
        !            54:      Copyright 1985 by Massachusetts Institute of Technology.
        !            55:      See _X(_1) for a complete copyright notice.
        !            56:      Bob Scheifler, MIT Laboratory for Computer Science, Jim Get-
        !            57:      tys, MIT Project Athena (DEC).
        !            58: 
        !            59: 
        !            60: 
        !            61: 
        !            62: 
        !            63: Printed 9/15/87          25 January 1986                       1
        !            64: 
        !            65: 
        !            66: 

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