Xserver man page on SunOS

Xserver man page on SunOS

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XSERVER(1) XSERVER(1)

NAME
Xserver - X Window System display server

SYNOPSIS
X [option ...]

/usr/X11/bin/Xserver [-c class] :displaynumber [X server arguments]

DESCRIPTION
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 driv‐
ing the most frequently used server on a given machine.

In this release of Solaris, /usr/X11/bin/X is a link to the Xserver
program which starts the appropriate X server based on properties set
for the service management facility, under the service identifier
svc:/application/x11/x11-server. The properties are described in the
SMF PROPERTIES section below.

STARTING THE SERVER
On Solaris, the X server is usually started from the CDE Display Man‐
ager program dtlogin(1). This role may also be performed by the X Dis‐
play Manager program xdm(1), the GNOME Display Manager program gdm(1),
or another display manager.

This utility is run from the system boot files and takes care of keep‐
ing the server running, prompting for usernames and passwords, and
starting up the user sessions.

Installations that run more than one window system may need to use the
xinit(1) utility instead of a display manager. However, xinit is to be
considered a tool for building startup scripts and is not intended for
use by end users. Site administrators are strongly urged to use a dis‐
play manager, or build other interfaces for novice users.

The X server may also be started directly by the user, though this
method is usually reserved for testing and is not recommended for nor‐
mal operation. On some platforms, the user must have special permis‐
sion to start the X server, often because access to certain devices
(e.g. /dev/mouse) is restricted.

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.

OPTIONS
Many X servers have device-specific command line options. See the man‐
ual pages for the individual servers for more details; a list of
server-specific manual pages is provided in the SEE ALSO section below.

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.

:displaynumber
The X server runs as the given displaynumber, 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 X(5) manual page to learn how to specify
which display number clients should try to use.

-a number
sets pointer acceleration (i.e. the ratio of how much is
reported to how much the user actually moved the pointer).

-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.

-audit level
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 vio‐
lations of the security policy. Level 0 turns off the audit
trail. Audit lines are sent as standard error output.

-auth authorization-file
specifies a file which contains a collection of authorization
records used to authenticate access. See also the xdm(1) and
Xsecurity(5) manual pages.

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.

[Only available in Xsun, not in Xorg.]

-bs disables backing store support on all screens.

-br sets the default root window to solid black instead of the
standard root weave pattern.

-c turns off key-click.

c volume
sets key-click volume (allowable range: 0-100).

-cc class
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.

-co filename
sets name of RGB color database. The default is
/usr/X11/lib/X11/rgb.

-core causes the server to generate a core dump on fatal errors.

-deferglyphs whichfonts
specifies the types of fonts for which the server should
attempt to use deferred glyph loading. whichfonts can be all
(all fonts), none (no fonts), or 16 (16 bit fonts only).

-dpi resolution
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.

dpms enables DPMS (display power management services), where sup‐
ported. The default state is platform and configuration spe‐
cific.

-dpms disables DPMS (display power management services). The default
state is platform and configuration specific.

-extensionextensionName
disables named extension. If an unknown extension name is
specified, a list of accepted extension names is printed.

[Only available in Xorg, not in Xsun.]

+extensionextensionName
enables named extension. If an unknown extension name is
specified, a list of accepted extension names is printed.

[Only available in Xorg, not in Xsun.]

-f volume
sets feep (bell) volume (allowable range: 0-100).

-fc cursorFont
sets default cursor font.

-fn font
sets the default font.

-fp fontPath
sets the search path for fonts. This path is a comma separated
list of directories which the X server searches for font data‐
bases. See the FONTS section of this manual page for more
information and the default list.

-help prints a usage message.

-I causes all remaining command line arguments to be ignored.

-maxbigreqsize size
sets the maximum big request to size MB.

[Only available in Xorg, not in Xsun.]

-nolisten transport
disables listening for client connections on the named trans‐
port. The current transport names supported are as follows:

tcp TCP over IPv4 or IPv6
unix UNIX Domain Sockets (/tmp/.x11-unix)
pipe Named pipes (/tmp/.x11-pipe/) and shared memory

By default each of the above servers opens listeners on each of
the above transports. The -nolisten command line argument dis‐
ables listening on the named transports. You can disable multi‐
ple transports by listing this option multiple times, for exam‐
ple:

-nolisten pipe -nolisten tcp

If all available transports are disabled, then the commands issue
a fatal error message and exit. A server not listening for any
clients is of little value.

-noreset
prevents a server reset when the last client connection is
closed. This overrides a previous -terminate command line
option.

-p minutes
sets screen-saver pattern cycle time in minutes.

-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 in Xorg, but is off by default in
Xsun.

-nopn causes the server to exit if it fails to establish all of its
well-known sockets (connection points for clients).

[Only available in Xorg, not in Xsun.]

-r turns off auto-repeat.

r turns on auto-repeat.

-s minutes
sets screen-saver timeout time in minutes.

-su disables save under support on all screens.

-t number
sets pointer acceleration threshold in pixels (i.e. after how
many pixels pointer acceleration should take effect).

-terminate
causes the server to terminate at server reset, instead of con‐
tinuing to run. This overrides a previous -noreset command
line option.

-to seconds
sets default connection timeout in seconds.

-tst disables all testing extensions (e.g., XTEST, XTrap, XTestEx‐
tension1, RECORD).

ttyxx ignored, for servers started the ancient way (from init).

v sets video-off screen-saver preference.

-v sets video-on screen-saver preference.

-wm forces the default backing-store of all windows to be When‐
Mapped. 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.

-wr sets the default root window to solid white instead of the
standard root weave pattern.

-x extension
loads the specified extension at init. This is a no-op for
most implementations.

[+-]xinerama
enables(+) or disables(-) the XINERAMA extension. The default
state is platform and configuration specific.

See the XINERAMA section of the Xsun(1) manual page for more
details.

SERVER DEPENDENT OPTIONS
Some X servers accept the following options:

-ld kilobytes
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.

-lf files
sets the number-of-open-files limit of the server to the speci‐
fied number. A value of zero makes the limit as large as pos‐
sible. The default value of -1 leaves the limit unchanged.

-ls kilobytes
sets the stack space limit of the server to the specified num‐
ber 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.

-logo turns on the X Window System logo display in the screen-saver.
There is currently no way to change this from a client.

nologo turns off the X Window System logo display in the screen-saver.
There is currently no way to change this from a client.

-render default|mono|gray|color sets the color allocation policy that
will be used by the render extension.

default selects the default policy defined for the display
depth of the X server.

mono don't use any color cell.

gray use a gray map of 13 color cells for the X render
extension.

color use a color cube of at most 4*4*4 colors (that is 64
color cells).

[This option is only available in Xorg, not in Xsun.]

-dumbSched
disables smart scheduling on platforms that support the smart
scheduler.

[Only available in Xorg, not in Xsun.]

-schedInterval interval
sets the smart scheduler's scheduling interval to interval mil‐
liseconds.

[Only available in Xorg, not in Xsun.]

XDMCP OPTIONS
X servers that support XDMCP have the following options. See the X
Display Manager Control Protocol specification for more information.

-query hostname
enables XDMCP and sends Query packets to the specified host‐
name.

-broadcast
enable XDMCP and broadcasts BroadcastQuery packets to the net‐
work. The first responding display manager will be chosen for
the session.

-multicast [address [hop count]]
Enable XDMCP and multicast BroadcastQuery packets to the net‐
work. 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 mul‐
ticast. 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.

-indirect hostname
enables XDMCP and send IndirectQuery packets to the specified
hostname.

-port port-number
uses the specified port-number for XDMCP packets, instead of
the default. This option must be specified before any -query,
-broadcast, -multicast, or -indirect options.

-from local-address
specifies the local address to connect from (useful if the con‐
necting host has multiple network interfaces). The local-
address may be expressed in any form acceptable to the host
platform's gethostbyname(3) implementation.

[Only available in Xorg, not in Xsun.]

-once causes the server to terminate (rather than reset) when the
XDMCP session ends.

-class display-class
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).

-cookie xdm-auth-bits
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!).

-displayID display-id
Yet another XDMCP specific value, this one allows the display
manager to identify each display so that it can locate the
shared key.

XKEYBOARD OPTIONS
X servers that support the XKEYBOARD (a.k.a. "XKB") 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 speci‐
fied as the relative path from the XKB base directory. The default XKB
base directory is /usr/X11/lib/X11/xkb.

[+-]kb enables(+) or disables(-) the XKEYBOARD extension.

The default XKEYBOARD state in Xsun in this release of Solaris
is disabled unless +kb is specified. This may change in a
future release. XKEYBOARD is enabled by default in the Xorg
server.

[+-]accessx [timeout[timeout_mask[feedback[options_mask]]]]
enables(+) or disables(-) AccessX key sequences.

-ardelay milliseconds
sets the autorepeat delay (length of time in milliseconds that
a key must be depressed before autorepeat starts).

[Only available in Xorg, not in Xsun.]

-arinterval milliseconds
sets the autorepeat interval (length of time in milliseconds
that should elapse between autorepeat-generated keystrokes).

[Only available in Xorg, not in Xsun.]

-ar1 milliseconds
sets the autorepeat delay (length of time in milliseconds that
a key must be depressed before autorepeat starts).

-ar2 milliseconds
sets the autorepeat interval (length of time in milliseconds
that should elapse between autorepeat-generated keystrokes).

-xkbmap filename
loads keyboard description in filename on server startup.

SECURITY EXTENSION OPTIONS
X servers that support the SECURITY extension accept the following
option:

-sp filename
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.

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.

<policy file> ::= <version line> <other line>*

<version line> ::= <string/v> '\n'

<comment> ::= # <not newline>* '\n'

<blank line> ::= <space> '\n'

<site policy> ::= sitepolicy <string/sp> '\n'

<access rule> ::= property <property/ar> <window> <perms> '\n'

<perms> ::= [ <operation> | <action> | <space> ]*

<operation> ::= r | w | d

<action> ::= a | i | e

<space> ::= [ ' ' | '\t' ]*

Character sets:

<not newline> ::= any character except '\n'
<not dqoute> ::= any character except "
<not squote> ::= any character except '
<not space> ::= any character except those in <space>

The semantics associated with the above syntax are as follows.

<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" .

Once past the <version line>, lines that do not match the above syntax
are ignored.

<comment> lines are ignored.

<sitepolicy> lines are currently ignored. They are intended to specify
the site policies used by the XC-QUERY-SECURITY-1 authorization method.

<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>.

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 speci‐
fied by <window>. If <window> is any, the rule applies to <prop‐
erty/ar> on any window. If <window> is root, the rule applies to
<property/ar> only on root windows.

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 speci‐
fied 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.

The definition of string matching is simple case-sensitive string com‐
parison with one elaboration: the occurrence of the character '*' in
<string/rv> is a wildcard meaning "any string." A <string/rv> can con‐
tain 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.

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.

<perms> specify operations that untrusted clients may attempt, and the
actions that the server should take in response to those operations.

<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.

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

<action> can be a (allow), i (ignore), or e (error). Allow means exe‐
cute 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.

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.

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.

Here is an example security policy file.

version-1

# Allow reading of application resources, but not writing.
property RESOURCE_MANAGER root ar iw
property SCREEN_RESOURCES root ar iw

# Ignore attempts to use cut buffers. Giving errors causes apps to crash,
# 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

# If you are using Motif, you probably want these.
property _MOTIF_DEFAULT_BINDINGS rootar 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

# The next two rules let xwininfo -tree work when untrusted.
property WM_NAME any ar

# Allow read of WM_CLASS, but only for windows with WM_NAME.
# This might be more restrictive than necessary, but demonstrates
# the <required property> facility, and is also an attempt to
# say "top level windows only."
property WM_CLASS WM_NAME ar

# These next three let xlsclients work untrusted. Think carefully
# before including these; giving away the client machine name and command
# may be exposing too much.
property WM_STATE WM_NAME ar
property WM_CLIENT_MACHINE WM_NAME ar
property WM_COMMAND WM_NAME ar

# To let untrusted clients use the standard colormaps created by
# 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

# To let untrusted clients use the color management database created
# by xcmsdb, include these lines.
property XDCCC_LINEAR_RGB_CORRECTION rootar
property XDCCC_LINEAR_RGB_MATRICES rootar
property XDCCC_GRAY_SCREENWHITEPOINT rootar
property XDCCC_GRAY_CORRECTION rootar

# To let untrusted clients use the overlay visuals that many vendors
# support, include this line.
property SERVER_OVERLAY_VISUALS rootar

# Dumb examples to show other capabilities.

# oddball property names and explicit specification of error conditions
property "property with spaces" 'property with "'aw er ed

# Allow deletion of Woo-Hoo if window also has property OhBoy with value
# ending in "son". Reads and writes will cause an error.
property Woo-Hoo OhBoy = "*son"ad

NETWORK CONNECTIONS
The X server supports client connections via a platform-dependent sub‐
set of the following transport types: TCPIP, Unix Domain sockets, DEC‐
net, and several varieties of SVR4 local connections. See the DISPLAY
NAMES section of the X(5) manual page to learn how to specify which
transport type clients should try to use.

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 Xsecurity(5)
manual page for information on the operation of these protocols.

Authorization data required by the above protocols is passed to the
server in a private file named with the -auth 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 automat‐
ically 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 Xau manual page for a
description of the binary format of this file. See xauth(1) for main‐
tenance of this file, and distribution of its contents to remote hosts.

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 /etc/Xn.hosts, where n is the dis‐
play 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
family:name as described in the xhost(1) manual page. There should be
no leading or trailing spaces on any lines. For example:

joesworkstation
corporate.company.com
star::
inet:bigcpu
local:

Users can add or remove hosts from this list and enable or disable
access control using the xhost command from the same machine as the
server.

If the X FireWall Proxy (xfwp) 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 xfwp. If xfwp is run without a config‐
uration file and thus no sitepolicy is defined, if xfwp 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 xfwp, the X
server will deny the connection. See xfwp(1) for more information
about this proxy.

The X protocol intrinsically does not have any notion of window opera‐
tion 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 xauth(1) manual page for details. Restrictions are imposed on
untrusted clients that curtail the mischief they can do. See the SECU‐
RITY extension specification for a complete list of these restrictions.

Sites that have better authentication and authorization systems might
wish to make use of the hooks in the libraries and the server to pro‐
vide additional security models.

SIGNALS
The X server attaches special meaning to the following signals:

SIGHUP This signal causes the server to close all existing connec‐
tions, free all resources, and restore all defaults. It is
sent by the display manager whenever the main user's main
application (usually an xterm or window manager) exits to force
the server to clean up and prepare for the next user.

SIGTERM This signal causes the server to exit cleanly.

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. Xdm uses this feature
to recognize when connecting to the server is possible.

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 font path.

The default font path is /usr/X11/lib/X11/fonts/TrueType/,
/usr/X11/lib/X11/fonts/Type1/, /usr/X11/lib/X11/fonts/Type1/sun/,
/usr/X11/lib/X11/fonts/F3bitmaps/, /usr/X11/lib/X11/fonts/misc/,
/usr/X11/lib/X11/fonts/100dpi/, /usr/X11/lib/X11/fonts/75dpi/ .

The font path can be set with the -fp option or by xset(1) after the
server has started.

SMF PROPERTIES
Configuration properties for the /usr/X11/bin/Xserver program are man‐
aged by the service management facility, smf(5), under the service
identifier:

svc:/application/x11/x11-server
Use svccfg(1M) to make configuration changes and to view configuration
information for this service.

/usr/X11/bin/Xserver will look for configuration options in the
instances in this order, stopping at the first match for the given
property:

1. :displayN (where N is the display number of the X server, i.e.
:display0 for :0)

2. Any class names provided via the -c options to
/usr/X11/bin/Xserver. Multiple -c options may be provided, if
so, they are searched in the order found on the command line.

3. If any XDMCP options are provided to open a remote display con‐
nection, :remote, otherwise :local

4. The default properties for the service

Class names may be any valid FMRI instance name. Sun reserves all
class names beginning with lowercase letters for its own use - cus‐
tomers wishing to create their own class names may use names beginning
with an uppercase letter.

These properties may be set in any instance of x11-server or for the
service itself:

options/server
(Type astring) The absolute path to the X server binary to run,
currently must be one of:

/usr/openwin/bin/Xsun
/usr/openwin/bin/Xvfb
/usr/X11/bin/Xorg
/usr/X11/bin/i386/Xorg
/usr/X11/bin/amd64/Xorg
/usr/X11/bin/Xvfb
/usr/X11/bin/i386/Xvfb
/usr/X11/bin/amd64/Xvfb
/usr/X11/bin/Xvnc

options/tcp_listen
(Type boolean) Setting this to false disables listening for
incoming TCP/IP connections (see -nolisten tcp option above).

options/default_depth
(Type int) Sets the depth of the default visual of the X server
started.

options/server_args
(Type astring) Sets additional arguments to pass to the X server
started. Care must be used when using options specific to a
particular X server as then it may cause failure to start the X
server if the server to be started is later changed to one that
does not support those options.

Example: Allow remote access
The following command allows access from remote clients.

svccfg -s svc:/application/x11/x11-server setprop options/tcp_listen = true

Example: Enables the XKEYBOARD extension
The following command enables the XKEYBOARD extension.

svccfg -s svc:/application/x11/x11-server setprop options/server_args=+kb

FILES
/etc/Xn.hosts Initial access control list for display
number n

/usr/X11/lib/X11/fonts/misc,/usr/X11/lib/X11/fonts/75dpi,/usr/X11/lib/X11/fonts/100dpi
Bitmap font directories

/usr/X11/lib/X11/fonts/True‐
Type,/usr/X11/lib/X11/fonts/Speedo,/usr/X11/lib/X11/fonts/Type1
Outline font directories

/usr/X11/lib/X11/rgb.txt Color database

/tmp/.X11-unix/Xn Unix domain socket for display number n

/tmp/.X11-pipe/Xn Named pipe (FIFO) for display number n

/tmp/rcXn Kerberos 5 replay cache for display num‐
ber n

/usr/adm/Xnmsgs Error log file for display number n if
run from init(1m)

/usr/X11/lib/X11/xdm/xdm-errors
Default error log file if the server is
run from xdm(1)

/var/dt/Xerrors Default error log file if the server is
run from dtlogin(1)