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-.\" $Xorg: Xserver.man,v 1.4 2001/02/09 02:04:07 xorgcvs Exp $
-.\" Copyright 1984 - 1991, 1993, 1994, 1998  The Open Group
-.\"
-.\" Permission to use, copy, modify, distribute, and sell this software and its
-.\" documentation for any purpose is hereby granted without fee, provided that
-.\" the above copyright notice appear in all copies and that both that
-.\" copyright notice and this permission notice appear in supporting
-.\" documentation.
-.\"
-.\" The above copyright notice and this permission notice shall be included
-.\" in all copies or substantial portions of the Software.
-.\"
-.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-.\" IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
-.\" OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-.\" ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-.\" OTHER DEALINGS IN THE SOFTWARE.
-.\"
-.\" Except as contained in this notice, the name of The Open Group shall
-.\" not be used in advertising or otherwise to promote the sale, use or
-.\" other dealings in this Software without prior written authorization
-.\" from The Open Group.
-.\" $XFree86: xc/programs/Xserver/Xserver.man,v 3.31 2004/01/10 22:27:46 dawes Exp $
-.\" shorthand for double quote that works everywhere.
-.ds q \N'34'
-.TH XSERVER 1 __xorgversion__
-.SH NAME
-Xserver \- X Window System display server
-.SH SYNOPSIS
-.B X
-[option ...]
-.SH DESCRIPTION
-.I X
-is the generic name for the X Window System display server.  It is
-frequently a link or a copy of the appropriate server binary for
-driving the most frequently used server on a given machine.
-.SH "STARTING THE SERVER"
-The X server is usually started from the X Display Manager program 
-\fIxdm\fP(1) or a similar display manager program.
-This utility is run from the system boot files and takes care of keeping
-the server running, prompting for usernames and passwords, and starting up
-the user sessions.
-.PP
-Installations that run more than one window system may need to use the
-\fIxinit\fP(1) utility instead of a display manager.  However, \fIxinit\fP is
-to be considered a tool for building startup scripts and is not
-intended for use by end users.  Site administrators are \fBstrongly\fP
-urged to use a display manager, or build other interfaces for novice users.
-.PP
-The X server may also be started directly by the user, though this
-method is usually reserved for testing and is not recommended for
-normal operation.  On some platforms, the user must have special
-permission to start the X server, often because access to certain
-devices (e.g. \fI/dev/mouse\fP) is restricted.
-.PP
-When the X server starts up, it typically takes over the display.  If
-you are running on a workstation whose console is the display, you may
-not be able to log into the console while the server is running.
-.SH OPTIONS
-Many X servers have device-specific command line options.  See the manual
-pages for the individual servers for more details; a list of
-server-specific manual pages is provided in the SEE ALSO section below.
-.PP
-All of the X servers accept the command line options described below.
-Some X servers may have alternative ways of providing the parameters
-described here, but the values provided via the command line options
-should override values specified via other mechanisms.
-.TP 8
-.B :\fIdisplaynumber\fP
-The X server runs as the given \fIdisplaynumber\fP, which by default is 0.
-If multiple X servers are to run simultaneously on a host, each must have
-a unique display number.  See the DISPLAY
-NAMES section of the \fIX\fP(__miscmansuffix__) manual page to learn how to
-specify which display number clients should try to use.
-.TP 8
-.B \-a \fInumber\fP
-sets pointer acceleration (i.e. the ratio of how much is reported to how much
-the user actually moved the pointer).
-.TP 8
-.B \-ac
-disables host-based access control mechanisms.  Enables access by any host,
-and permits any host to modify the access control list.
-Use with extreme caution.
-This option exists primarily for running test suites remotely.
-.TP 8
-.B \-audit \fIlevel\fP
-sets the audit trail level.  The default level is 1, meaning only connection
-rejections are reported.  Level 2 additionally reports all successful
-connections and disconnects.  Level 4 enables messages from the
-SECURITY extension, if present, including generation and revocation of
-authorizations and violations of the security policy.
-Level 0 turns off the audit trail.
-Audit lines are sent as standard error output.
-.TP 8
-.B \-auth \fIauthorization-file\fP
-specifies a file which contains a collection of authorization records used
-to authenticate access.  See also the \fIxdm\fP(1) and 
-\fIXsecurity\fP(__miscmansuffix__) manual pages.
-.TP 8
-.B bc
-disables certain kinds of error checking, for bug compatibility with
-previous releases (e.g., to work around bugs in R2 and R3 xterms and toolkits).
-Deprecated.
-.TP 8
-.B \-bs
-disables backing store support on all screens.
-.TP 8
-.B \-br
-sets the default root window to solid black instead of the standard root weave
-pattern.
-.TP 8
-.B \-c
-turns off key-click.
-.TP 8
-.B c \fIvolume\fP
-sets key-click volume (allowable range: 0-100).
-.TP 8
-.B \-cc \fIclass\fP
-sets the visual class for the root window of color screens.
-The class numbers are as specified in the X protocol.
-Not obeyed by all servers.
-.TP 8
-.B \-co \fIfilename\fP
-sets name of RGB color database.  The default is
-.IR __projectroot__/lib/X11/rgb .
-.ig
-.TP 8
-.B \-config \fIfilename\fP
-reads more options from the given file.  Options in the file may be separated
-by newlines if desired.  If a '#' character appears on a line, all characters
-between it and the next newline are ignored, providing a simple commenting
-facility.  The \fB\-config\fP option itself may appear in the file.
-.BR NOTE :
-This option is disabled when the Xserver is run with an effective uid
-different from the user's real uid.
-..
-.TP 8
-.B \-core
-causes the server to generate a core dump on fatal errors.
-.TP 8
-.B \-deferglyphs \fIwhichfonts\fP
-specifies the types of fonts for which the server should attempt to use
-deferred glyph loading.  \fIwhichfonts\fP can be all (all fonts),
-none (no fonts), or 16 (16 bit fonts only).
-.TP 8
-.B \-dpi \fIresolution\fP
-sets the resolution for all screens, in dots per inch.
-To be used when the server cannot determine the screen size(s) from the
-hardware.
-.TP 8
-.B dpms
-enables DPMS (display power management services), where supported.  The
-default state is platform and configuration specific.
-.TP 8
-.B \-dpms
-disables DPMS (display power management services).  The default state
-is platform and configuration specific.
-.TP 8
-.B \-f \fIvolume\fP
-sets feep (bell) volume (allowable range: 0-100).
-.TP 8
-.B \-fc \fIcursorFont\fP
-sets default cursor font.
-.TP 8
-.B \-fn \fIfont\fP
-sets the default font.
-.TP 8
-.B \-fp \fIfontPath\fP
-sets the search path for fonts.  This path is a comma separated list
-of directories which the X server searches for font databases.
-See the FONTS section of this manual page for more information and the default
-list.
-.TP 8
-.B \-help
-prints a usage message.
-.TP 8
-.B \-I
-causes all remaining command line arguments to be ignored.
-.TP 8
-.B \-maxbigreqsize \fIsize\fP
-sets the maxmium big request to
-.I size
-MB.
-.TP 8
-.B \-nolisten \fItrans-type\fP
-disables a transport type.  For example, TCP/IP connections can be disabled
-with
-.BR "\-nolisten tcp" .
-This option may be issued multiple times to disable listening to different
-transport types.
-.TP 8
-.B \-noreset
-prevents a server reset when the last client connection is closed.  This
-overrides a previous
-.B \-terminate
-command line option.
-.TP 8
-.B \-p \fIminutes\fP
-sets screen-saver pattern cycle time in minutes.
-.TP 8
-.B \-pn
-permits the server to continue running if it fails to establish all of
-its well-known sockets (connection points for clients), but
-establishes at least one.  This option is set by default.
-.TP 8
-.B \-nopn
-causes the server to exit if it fails to establish all of its well-known
-sockets (connection points for clients).
-.TP 8
-.B \-r
-turns off auto-repeat.
-.TP 8
-.B r
-turns on auto-repeat.
-.TP 8
-.B \-s \fIminutes\fP
-sets screen-saver timeout time in minutes.
-.TP 8
-.B \-su
-disables save under support on all screens.
-.TP 8
-.B \-t \fInumber\fP
-sets pointer acceleration threshold in pixels (i.e. after how many pixels
-pointer acceleration should take effect).
-.TP 8
-.B \-terminate
-causes the server to terminate at server reset, instead of continuing to run.
-This overrides a previous
-.B \-noreset
-command line option.
-.TP 8
-.B \-to \fIseconds\fP
-sets default connection timeout in seconds.
-.TP 8
-.B \-tst
-disables all testing extensions (e.g., XTEST, XTrap, XTestExtension1, RECORD).
-.TP 8
-.B tty\fIxx\fP
-ignored, for servers started the ancient way (from init).
-.TP 8
-.B v
-sets video-off screen-saver preference.
-.TP 8
-.B \-v
-sets video-on screen-saver preference.
-.TP 8
-.B \-wm
-forces the default backing-store of all windows to be WhenMapped.  This
-is a backdoor way of getting backing-store to apply to all windows.
-Although all mapped windows will have backing store, the backing store
-attribute value reported by the server for a window will be the last
-value established by a client.  If it has never been set by a client,
-the server will report the default value, NotUseful.  This behavior is
-required by the X protocol, which allows the server to exceed the
-client's backing store expectations but does not provide a way to tell
-the client that it is doing so.
-.TP 8
-.B \-x \fIextension\fP
-loads the specified extension at init.
-This is a no-op for most implementations.
-.TP 8
-.B [+-]xinerama
-enables(+) or disables(-) the XINERAMA extension.  The default state is
-platform and configuration specific.
-.SH SERVER DEPENDENT OPTIONS
-Some X servers accept the following options:
-.TP 8
-.B \-ld \fIkilobytes\fP
-sets the data space limit of the server to the specified number of kilobytes.
-A value of zero makes the data size as large as possible.  The default value
-of \-1 leaves the data space limit unchanged.
-.TP 8
-.B \-lf \fIfiles\fP
-sets the number-of-open-files limit of the server to the specified number.
-A value of zero makes the limit as large as possible.  The default value
-of \-1 leaves the limit unchanged.
-.TP 8
-.B \-ls \fIkilobytes\fP
-sets the stack space limit of the server to the specified number of kilobytes.
-A value of zero makes the stack size as large as possible.  The default value
-of \-1 leaves the stack space limit unchanged.
-.TP 8
-.B \-logo
-turns on the X Window System logo display in the screen-saver.
-There is currently no way to change this from a client.
-.TP 8
-.B nologo
-turns off the X Window System logo display in the screen-saver.
-There is currently no way to change this from a client.
-.TP 8
-.B \-render 
-.BR default | mono | gray | color
-sets the color allocation policy that will be used by the render extension.
-.RS 8
-.TP 8
-.I default
-selects the default policy defined for the display depth of the X
-server. 
-.TP 8
-.I mono
-don't use any color cell. 
-.TP 8
-.I gray 
-use a gray map of 13 color cells for the X render extension.
-.TP 8
-.I color
-use a color cube of at most 4*4*4 colors (that is 64 color cells).
-.RE
-.TP 8
-.B \-dumbSched
-disables smart scheduling on platforms that support the smart scheduler.
-.TP
-.B \-schedInterval \fIinterval\fP
-sets the smart scheduler's scheduling interval to
-.I interval
-milliseconds.
-.SH XDMCP OPTIONS
-X servers that support XDMCP have the following options.
-See the \fIX Display Manager Control Protocol\fP specification for more
-information.
-.TP 8
-.B \-query \fIhostname\fP
-enables XDMCP and sends Query packets to the specified
-.IR hostname .
-.TP 8
-.B \-broadcast
-enable XDMCP and broadcasts BroadcastQuery packets to the network.  The
-first responding display manager will be chosen for the session.
-.TP 8
-.B \-multicast [\fIaddress\fP [\fIhop count\fP]]
-Enable XDMCP and multicast BroadcastQuery packets to the  network.   
-The first responding display manager is chosen for the session.  If an 
-address is specified, the multicast is sent to that address.  If no 
-address is specified, the multicast is sent to the default XDMCP IPv6 
-multicast group.  If a hop count is specified, it is used as the maximum 
-hop count for the multicast.  If no hop count is specified, the multicast 
-is set to a maximum of 1 hop, to prevent the multicast from being routed 
-beyond the local network.
-.TP 8
-.B \-indirect \fIhostname\fP
-enables XDMCP and send IndirectQuery packets to the specified
-.IR hostname .
-.TP 8
-.B \-port \fIport-number\fP
-uses the specified \fIport-number\fP for XDMCP packets, instead of the
-default.  This option must be specified before any \-query, \-broadcast,
-\-multicast, or \-indirect options.
-.TP 8
-.B \-from \fIlocal-address\fP
-specifies the local address to connect from (useful if the connecting host
-has multiple network interfaces).  The \fIlocal-address\fP may be expressed
-in any form acceptable to the host platform's \fIgethostbyname\fP(3)
-implementation.
-.TP 8
-.B \-once
-causes the server to terminate (rather than reset) when the XDMCP session
-ends.
-.TP 8
-.B \-class \fIdisplay-class\fP
-XDMCP has an additional display qualifier used in resource lookup for
-display-specific options.  This option sets that value, by default it
-is "MIT-Unspecified" (not a very useful value).
-.TP 8
-.B \-cookie \fIxdm-auth-bits\fP
-When testing XDM-AUTHENTICATION-1, a private key is shared between the
-server and the manager.  This option sets the value of that private
-data (not that it is very private, being on the command line!).
-.TP 8
-.B \-displayID \fIdisplay-id\fP
-Yet another XDMCP specific value, this one allows the display manager to
-identify each display so that it can locate the shared key.
-.SH XKEYBOARD OPTIONS
-X servers that support the XKEYBOARD (a.k.a. \*qXKB\*q) extension accept the
-following options.  All layout files specified on the command line must be 
-located in the XKB base directory or a subdirectory, and specified as the
-relative path from the XKB base directory.  The default XKB base directory is
-.IR __projectroot__/lib/X11/xkb .
-.TP 8
-.B [+-]kb
-enables(+) or disables(-) the XKEYBOARD extension.
-.TP 8
-.BR [+-]accessx " [ \fItimeout\fP [ \fItimeout_mask\fP [ \fIfeedback\fP [ \fIoptions_mask\fP ] ] ] ]"
-enables(+) or disables(-) AccessX key sequences.
-.TP 8
-.B \-xkbdir \fIdirectory\fP
-base directory for keyboard layout files.  This option is not available
-for setuid X servers (i.e., when the X server's real and effective uids
-are different).
-.TP 8
-.B \-ar1 \fImilliseconds\fP
-sets the autorepeat delay (length of time in milliseconds that a key must
-be depressed before autorepeat starts).
-.TP 8
-.B \-ar2 \fImilliseconds\fP
-sets the autorepeat interval (length of time in milliseconds that should
-elapse between autorepeat-generated keystrokes).
-.TP 8
-.B \-noloadxkb
-disables loading of an XKB keymap description on server startup.
-.TP 8
-.B \-xkbdb \fIfilename\fP
-uses \fIfilename\fP for default keyboard keymaps.
-.TP 8
-.B \-xkbmap \fIfilename\fP
-loads keyboard description in \fIfilename\fP on server startup.
-.SH SECURITY EXTENSION OPTIONS
-X servers that support the SECURITY extension accept the following option:
-.TP 8
-.B \-sp \fIfilename\fP
-causes the server to attempt to read and interpret filename as a security
-policy file with the format described below.  The file is read at server
-startup and reread at each server reset.
-.PP
-The syntax of the security policy file is as follows.
-Notation: "*" means zero or more occurrences of the preceding element,
-and "+" means one or more occurrences.  To interpret <foo/bar>, ignore
-the text after the /; it is used to distinguish between instances of
-<foo> in the next section.
-.PP
-.nf
-<policy file> ::= <version line> <other line>*
-
-<version line> ::= <string/v> '\en'
-
-<other line > ::= <comment> | <access rule> | <site policy> | <blank line>
-
-<comment> ::= # <not newline>* '\en'
-
-<blank line> ::= <space> '\en'
-
-<site policy> ::= sitepolicy <string/sp> '\en'
-
-<access rule> ::= property <property/ar> <window> <perms> '\en'
-
-<property> ::= <string>
-
-<window> ::= any | root | <required property>
-
-<required property> ::= <property/rp> | <property with value>
-
-<property with value> ::= <property/rpv> = <string/rv>
-
-<perms> ::= [ <operation> | <action> | <space> ]*
-
-<operation> ::= r | w | d
-
-<action> ::= a | i | e
-
-<string> ::= <dbl quoted string> | <single quoted string> | <unqouted string>
-
-<dbl quoted string> ::= <space> " <not dqoute>* " <space>
-
-<single quoted string> ::= <space> ' <not squote>* ' <space>
-
-<unquoted string> ::= <space> <not space>+ <space>
-
-<space> ::= [ ' ' | '\et' ]*
-
-Character sets:
-
-<not newline> ::= any character except '\en'
-<not dqoute>  ::= any character except "
-<not squote>  ::= any character except '
-<not space>   ::= any character except those in <space>
-.fi
-.PP
-The semantics associated with the above syntax are as follows.
-.PP
-<version line>, the first line in the file, specifies the file format
-version.  If the server does not recognize the version <string/v>, it
-ignores the rest of the file.  The version string for the file format
-described here is "version-1" .
-.PP
-Once past the <version line>, lines that do not match the above syntax
-are ignored.
-.PP
-<comment> lines are ignored.
-.PP
-<sitepolicy> lines are currently ignored.  They are intended to
-specify the site policies used by the XC-QUERY-SECURITY-1
-authorization method.
-.PP
-<access rule> lines specify how the server should react to untrusted
-client requests that affect the X Window property named <property/ar>.
-The rest of this section describes the interpretation of an
-<access rule>.
-.PP
-For an <access rule> to apply to a given instance of <property/ar>,
-<property/ar> must be on a window that is in the set of windows
-specified by <window>.  If <window> is any, the rule applies to
-<property/ar> on any window.  If <window> is root, the rule applies to
-<property/ar> only on root windows.
-.PP
-If <window> is <required property>, the following apply.  If <required
-property> is a <property/rp>, the rule applies when the window also
-has that <property/rp>, regardless of its value.  If <required
-property> is a <property with value>, <property/rpv> must also have
-the value specified by <string/rv>.  In this case, the property must
-have type STRING and format 8, and should contain one or more
-null-terminated strings.  If any of the strings match <string/rv>, the
-rule applies.
-.PP
-The definition of string matching is simple case-sensitive string
-comparison with one elaboration: the occurrence of the character '*' in
-<string/rv> is a wildcard meaning "any string."  A <string/rv> can
-contain multiple wildcards anywhere in the string.  For example, "x*"
-matches strings that begin with x, "*x" matches strings that end with
-x, "*x*" matches strings containing x, and "x*y*" matches strings that
-start with x and subsequently contain y.
-.PP
-There may be multiple <access rule> lines for a given <property/ar>.
-The rules are tested in the order that they appear in the file.  The
-first rule that applies is used.
-.PP
-<perms> specify operations that untrusted clients may attempt, and
-the actions that the server should take in response to those operations.
-.PP
-<operation> can be r (read), w (write), or d (delete).  The following
-table shows how X Protocol property requests map to these operations
-in The Open Group server implementation.
-.PP
-.nf
-GetProperty	r, or r and d if delete = True
-ChangeProperty	w
-RotateProperties	r and w
-DeleteProperty	d
-ListProperties	none, untrusted clients can always list all properties
-.fi
-.PP
-<action> can be a (allow), i (ignore), or e (error).  Allow means
-execute the request as if it had been issued by a trusted client.
-Ignore means treat the request as a no-op.  In the case of
-GetProperty, ignore means return an empty property value if the
-property exists, regardless of its actual value.  Error means do not
-execute the request and return a BadAtom error with the atom set to
-the property name.  Error is the default action for all properties,
-including those not listed in the security policy file.
-.PP
-An <action> applies to all <operation>s that follow it, until the next
-<action> is encountered.  Thus, irwad  means ignore read and write,
-allow delete.
-.PP
-GetProperty and RotateProperties may do multiple operations (r and d,
-or r and w).  If different actions apply to the operations, the most
-severe action is applied to the whole request; there is no partial
-request execution.  The severity ordering is: allow < ignore < error.
-Thus, if the <perms> for a property are ired (ignore read, error
-delete), and an untrusted client attempts GetProperty on that property
-with delete = True, an error is returned, but the property value is
-not.  Similarly, if any of the properties in a RotateProperties do not
-allow both read and write, an error is returned without changing any
-property values.
-.PP
-Here is an example security policy file.
-.PP
-.ta 3i 4i
-.nf
-version-1
-
-XCOMM Allow reading of application resources, but not writing.
-property RESOURCE_MANAGER	root	ar iw
-property SCREEN_RESOURCES	root	ar iw
-
-XCOMM Ignore attempts to use cut buffers.  Giving errors causes apps to crash,
-XCOMM and allowing access may give away too much information.
-property CUT_BUFFER0	root	irw
-property CUT_BUFFER1	root	irw
-property CUT_BUFFER2	root	irw
-property CUT_BUFFER3	root	irw
-property CUT_BUFFER4	root	irw
-property CUT_BUFFER5	root	irw
-property CUT_BUFFER6	root	irw
-property CUT_BUFFER7	root	irw
-
-XCOMM If you are using Motif, you probably want these.
-property _MOTIF_DEFAULT_BINDINGS	root	ar iw
-property _MOTIF_DRAG_WINDOW	root	ar iw
-property _MOTIF_DRAG_TARGETS	any 	ar iw
-property _MOTIF_DRAG_ATOMS	any 	ar iw
-property _MOTIF_DRAG_ATOM_PAIRS	any 	ar iw
-
-XCOMM The next two rules let xwininfo -tree work when untrusted.
-property WM_NAME	any	ar
-
-XCOMM Allow read of WM_CLASS, but only for windows with WM_NAME.
-XCOMM This might be more restrictive than necessary, but demonstrates
-XCOMM the <required property> facility, and is also an attempt to
-XCOMM say "top level windows only."
-property WM_CLASS	WM_NAME	ar
-
-XCOMM These next three let xlsclients work untrusted.  Think carefully
-XCOMM before including these; giving away the client machine name and command
-XCOMM may be exposing too much.
-property WM_STATE	WM_NAME	ar
-property WM_CLIENT_MACHINE	WM_NAME	ar
-property WM_COMMAND	WM_NAME	ar
-
-XCOMM To let untrusted clients use the standard colormaps created by
-XCOMM xstdcmap, include these lines.
-property RGB_DEFAULT_MAP	root	ar
-property RGB_BEST_MAP	root	ar
-property RGB_RED_MAP	root	ar
-property RGB_GREEN_MAP	root	ar
-property RGB_BLUE_MAP	root	ar
-property RGB_GRAY_MAP	root	ar
-
-XCOMM To let untrusted clients use the color management database created
-XCOMM by xcmsdb, include these lines.
-property XDCCC_LINEAR_RGB_CORRECTION	root	ar
-property XDCCC_LINEAR_RGB_MATRICES	root	ar
-property XDCCC_GRAY_SCREENWHITEPOINT	root	ar
-property XDCCC_GRAY_CORRECTION	root	ar
-
-XCOMM To let untrusted clients use the overlay visuals that many vendors
-XCOMM support, include this line.
-property SERVER_OVERLAY_VISUALS	root	ar
-
-XCOMM Dumb examples to show other capabilities.
-
-XCOMM oddball property names and explicit specification of error conditions
-property "property with spaces"	'property with "'	aw er ed
-
-XCOMM Allow deletion of Woo-Hoo if window also has property OhBoy with value
-XCOMM ending in "son".  Reads and writes will cause an error.
-property Woo-Hoo	OhBoy = "*son"	ad
-
-.fi
-.SH "NETWORK CONNECTIONS"
-The X server supports client connections via a platform-dependent subset of
-the following transport types: TCP\/IP, Unix Domain sockets, DECnet,
-and several varieties of SVR4 local connections.  See the DISPLAY
-NAMES section of the \fIX\fP(__miscmansuffix__) manual page to learn how to
-specify which transport type clients should try to use.
-.SH GRANTING ACCESS
-The X server implements a platform-dependent subset of the following
-authorization protocols: MIT-MAGIC-COOKIE-1, XDM-AUTHORIZATION-1,
-XDM-AUTHORIZATION-2, SUN-DES-1, and MIT-KERBEROS-5.  See the 
-\fIXsecurity\fP(__miscmansuffix__) manual page for information on the 
-operation of these protocols.
-.PP
-Authorization data required by the above protocols is passed to the
-server in a private file named with the \fB\-auth\fP command line
-option.  Each time the server is about to accept the first connection
-after a reset (or when the server is starting), it reads this file.
-If this file contains any authorization records, the local host is not
-automatically allowed access to the server, and only clients which
-send one of the authorization records contained in the file in the
-connection setup information will be allowed access.  See the
-\fIXau\fP manual page for a description of the binary format of this
-file.  See \fIxauth\fP(1) for maintenance of this file, and distribution
-of its contents to remote hosts.
-.PP
-The X server also uses a host-based access control list for deciding
-whether or not to accept connections from clients on a particular machine.
-If no other authorization mechanism is being used,
-this list initially consists of the host on which the server is running as
-well as any machines listed in the file \fI/etc/X\fBn\fI.hosts\fR, where
-\fBn\fP is the display number of the server.  Each line of the file should
-contain either an Internet hostname (e.g. expo.lcs.mit.edu) or a DECnet
-hostname in double colon format (e.g. hydra::) or a complete name in the format
-\fIfamily\fP:\fIname\fP as described in the \fIxhost\fP(1) manual page.
-There should be no leading or trailing spaces on any lines.  For example:
-.sp
-.in +8
-.nf
-joesworkstation
-corporate.company.com
-star::
-inet:bigcpu
-local:
-.fi
-.in -8
-.PP
-Users can add or remove hosts from this list and enable or disable access
-control using the \fIxhost\fP command from the same machine as the server.
-.PP
-If the X FireWall Proxy (\fIxfwp\fP) is being used without a sitepolicy,
-host-based authorization must be turned on for clients to be able to
-connect to the X server via the \fIxfwp\fP.  If \fIxfwp\fP is run without
-a configuration file and thus no sitepolicy is defined, if \fIxfwp\fP
-is using an X server where xhost + has been run to turn off host-based
-authorization checks, when a client tries to connect to this X server
-via \fIxfwp\fP, the X server will deny the connection.  See \fIxfwp\fP(1)
-for more information about this proxy.
-.PP
-The X protocol intrinsically does not have any notion of window operation
-permissions or place any restrictions on what a client can do; if a program can
-connect to a display, it has full run of the screen.
-X servers that support the SECURITY extension fare better because clients
-can be designated untrusted via the authorization they use to connect; see
-the \fIxauth\fP(1) manual page for details.  Restrictions are imposed
-on untrusted clients that curtail the mischief they can do.  See the SECURITY
-extension specification for a complete list of these restrictions.
-.PP
-Sites that have better
-authentication and authorization systems might wish to make
-use of the hooks in the libraries and the server to provide additional
-security models.
-.SH SIGNALS
-The X server attaches special meaning to the following signals:
-.TP 8
-.I SIGHUP
-This signal causes the server to close all existing connections, free all
-resources, and restore all defaults.  It is sent by the display manager
-whenever the main user's main application (usually an \fIxterm\fP or window
-manager) exits to force the server to clean up and prepare for the next
-user.
-.TP 8
-.I SIGTERM
-This signal causes the server to exit cleanly.
-.TP 8
-.I SIGUSR1
-This signal is used quite differently from either of the above.  When the
-server starts, it checks to see if it has inherited SIGUSR1 as SIG_IGN
-instead of the usual SIG_DFL.  In this case, the server sends a SIGUSR1 to
-its parent process after it has set up the various connection schemes.
-\fIXdm\fP uses this feature to recognize when connecting to the server
-is possible.
-.SH FONTS
-The X server
-can obtain fonts from directories and/or from font servers.
-The list of directories and font servers
-the X server uses when trying to open a font is controlled
-by the \fIfont path\fP.  
-.LP
-The default font path is
-__default_font_path__ .
-.LP
-The font path can be set with the \fB\-fp\fP option or by \fIxset\fP(1)
-after the server has started.
-.SH FILES
-.TP 30
-.I /etc/X\fBn\fP.hosts
-Initial access control list for display number \fBn\fP
-.TP 30
-.IR __projectroot__/lib/X11/fonts/misc , __projectroot__/lib/X11/fonts/75dpi , __projectroot__/lib/X11/fonts/100dpi
-Bitmap font directories
-.TP 30
-.IR __projectroot__/lib/X11/fonts/TTF , __projectroot__/lib/X11/fonts/Type1
-Outline font directories
-.TP 30
-.I __projectroot__/lib/X11/rgb.txt
-Color database
-.TP 30
-.I /tmp/.X11-unix/X\fBn\fP
-Unix domain socket for display number \fBn\fP
-.TP 30
-.IR /tmp/rcX\fBn\fP
-Kerberos 5 replay cache for display number \fBn\fP
-.TP 30
-.I /usr/adm/X\fBn\fPmsgs
-Error log file for display number \fBn\fP if run from \fIinit\fP(__adminmansuffix__)
-.TP 30
-.I __projectroot__/lib/X11/xdm/xdm-errors
-Default error log file if the server is run from \fIxdm\fP(1)
-.SH "SEE ALSO"
-General information: \fIX\fP(__miscmansuffix__)
-.PP
-Protocols:
-.I "X Window System Protocol,"
-.I "The X Font Service Protocol,"
-.I "X Display Manager Control Protocol"
-.PP
-Fonts: \fIbdftopcf\fP(1), \fImkfontdir\fP(1), \fImkfontscale\fP(1),
-\fIxfs\fP(1), \fIxlsfonts\fP(1), \fIxfontsel\fP(1), \fIxfd\fP(1),
-.I "X Logical Font Description Conventions"
-.PP
-Security: \fIXsecurity\fP(__miscmansuffix__), \fIxauth\fP(1), \fIXau\fP(1), 
-\fIxdm\fP(1), \fIxhost\fP(1), \fIxfwp\fP(1),
-.I "Security Extension Specification"
-.PP
-Starting the server: \fIxdm\fP(1), \fIxinit\fP(1)
-.PP
-Controlling the server once started: \fIxset\fP(1), \fIxsetroot\fP(1),
-\fIxhost\fP(1)
-.PP
-Server-specific man pages:
-\fIXdec\fP(1), \fIXmacII\fP(1), \fIXsun\fP(1), \fIXnest\fP(1),
-\fIXvfb\fP(1), \fIXFree86\fP(1), \fIXDarwin\fP(1).
-.PP
-Server internal documentation:
-.I "Definition of the Porting Layer for the X v11 Sample Server"
-.SH AUTHORS
-The sample server was originally written by Susan Angebranndt, Raymond
-Drewry, Philip Karlton, and Todd Newman, from Digital Equipment
-Corporation, with support from a large cast.  It has since been
-extensively rewritten by Keith Packard and Bob Scheifler, from MIT.
-Dave Wiggins took over post-R5 and made substantial improvements.