Xwrapper.config(g)                             Xwrapper.config(g)



NAME
       Xwrapper.config - configuration options for X server wrap-
       per

DESCRIPTION
       /etc/X11/Xwrapper.config contains  a  set  of  flags  that
       determine  some of the behavior of Debian's X server wrap-
       per, which is installed on the system as /usr/X11R6/bin/X.
       The  purpose  of  the  wrapper,  and of this configuration
       file, is twofold.

       Firstly, it is intended to implement sound security  prac-
       tices.   Since the X server requires superuser privileges,
       it may be unwise to permit just any user on the system  to
       execute  it.   Even  if the X server is not exploitable in
       the sense of permitting ordinary users  to  gain  elevated
       privileges,   a  poorly-written  or  insufficiently-tested
       hardware driver for the X server may cause bus lockups and
       freeze  the  system,  an  unpleasant experience for anyone
       using it at the time.

       Secondly, a wrapper is a convenient place  to  set  up  an
       execution  environment  for the X server distinct from the
       configurable parameters of the X server itself.

       Xwrapper.config may be edited by hand, but it is typically
       configured  via  debconf,  the  Debian configuration tool.
       The X server wrapper is part of the xserver-common  Debian
       package,  therefore  the parameters of Xwrapper.config may
       be changed with the command dpkg-reconfigure  xserver-com-
       mon.  See dpkg-reconfigure(e) for more information.

       The  format of Xwrapper.config is a text file containing a
       series of lines of the form

       name=value

       where name is a variable name containing  any  combination
       of  numbers,  letters,  or  underscore (_) characters, and
       value is any combination of letters, numbers,  underscores
       (_), dashes (-).  value may also contain spaces as long as
       there is at least one character from the list above bound-
       ing  the  space(e)  on  both sides.  Whitespace before and
       after name,value, or the equals sign is legal but ignored.
       Any  lines  not  matching the above described legal format
       are ignored.  Note that this specification may  change  as
       the X server wrapper develops.

       Available options are:

       allowed_users
              may   be  set  to  one  of  the  following  values:
              rootonly,console,anybody.    "rootonly"   indicates
              that  only  the  root  user may start the X server;
              "console" indicates that root, or  any  user  whose
              controlling TTY is a virtual console, may start the
              X server; and "anybody" indicates that any user may
              start the X server.

       nice_value
              may  be any integer in the interval [-20,19].  This
              is used to set the  executing  X  server's  process
              priority.  See nice(e).

SEE ALSO
       dpkg-reconfigure(e), nice(e)

AUTHOR
       This  manpage  was written by Branden Robinson for Progeny
       Linux Systems, Inc., and Debian GNU/Linux.



Debian GNU/Linux            6 Jan 2001         Xwrapper.config(g)