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Xwrapper.config |
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!!!Xwrapper.config |
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NAME |
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DESCRIPTION |
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SEE ALSO |
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AUTHOR |
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!!NAME |
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Xwrapper.config - configuration options for X server wrapper |
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!!DESCRIPTION |
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''/etc/X11/Xwrapper.config'' contains a set of flags that |
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determine some of the behavior of Debian's X server wrapper, |
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which is installed on the system as ''/usr/X11R6/bin/X''. |
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The purpose of the wrapper, and of this configuration file, |
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is twofold. |
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Firstly, it is intended to implement sound security |
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practices. Since the X server requires superuser privileges, |
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it may be unwise to permit just any user on the system to |
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execute it. Even if the X server is not exploitable in the |
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sense of permitting ordinary users to gain elevated |
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privileges, a poorly-written or insufficiently-tested |
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hardware driver for the X server may cause bus lockups and |
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freeze the system, an unpleasant experience for anyone using |
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it at the time. |
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Secondly, a wrapper is a convenient place to set up an |
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execution environment for the X server distinct from the |
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configurable parameters of the X server itself. |
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__Xwrapper.config__ may be edited by hand, but it is |
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typically configured via debconf, the Debian configuration |
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tool. The X server wrapper is part of the |
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''xserver-common'' Debian package, therefore the |
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parameters of __Xwrapper.config__ may be changed with the |
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command ''dpkg-reconfigure xserver-common''. See |
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''dpkg-reconfigure''(8) for more |
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information. |
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The format of __Xwrapper.config__ is a text file |
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containing a series of lines of the form |
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''name''=''value'' |
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where ''name'' is a variable name containing any |
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combination of numbers, letters, or underscore (_) |
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characters, and ''value'' is any combination of letters, |
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numbers, underscores (_), dashes (-). ''value'' may also |
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contain spaces as long as there is at least one character |
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from the list above bounding the space(s) on both sides. |
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Whitespace before and after ''name'',''value'', or the |
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equals sign is legal but ignored. Any lines not matching the |
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above described legal format are ignored. Note that this |
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specification may change as the X server wrapper |
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develops. |
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Available options are: |
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allowed_users |
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may be set to one of the following values: |
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__rootonly__,__console__,__anybody__. |
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__ |
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nice_value |
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may be any integer in the interval [[-20,19]. This is used to |
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set the executing X server's process priority. See |
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nice(1). |
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!!SEE ALSO |
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''dpkg-reconfigure''(8), nice(1) |
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!!AUTHOR |
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This manpage was written by Branden Robinson for Progeny |
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Linux Systems, Inc., and Debian GNU/Linux. |
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