NAME    [Toc]    [Back]

       Xwrapper.config - configuration options for X server wrapper

DESCRIPTION    [Toc]    [Back]

       /etc/X11/Xwrapper.config contains a set of flags that determine some of
       the behavior of Debian's X server wrapper, 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  practices.	 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-common.	See dpkg-reconfigure(8) 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
       bounding  the  space(s)	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,any-
	      body.   "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(1).

SEE ALSO    [Toc]    [Back]

       dpkg-reconfigure(8), nice(1)

AUTHOR    [Toc]    [Back]

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



Debian GNU/Linux		  6 Jan 2001		    Xwrapper.config(5)