Xwrapper.config - configuration options for X server wrapper
/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
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:
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.
may be any integer in the interval [-20,19]. This is used to
set the executing X server's process priority. See nice(1).
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)
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