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The X terminal comes with a small set of fonts. In the X terminal setup
menus and configuration files, these fonts are referred to as
'built-ins'. The terminal can be operated with these fonts alone but more
fonts are desirable. Fonts can be added by specifying font paths in
X terminal console setup menus, configuration files or by using the xset
command.
Once the X server software is running on the X terminal, the font path can
modified or queried with the command xset.
To query the X server:
xset -q
To add a font entry:
xset +fp <path>
To remove a font entry:
xset -fp <path>
The font server (xfs) runs on a network host and retrieves fonts for the X
terminal and other network clients. Use of the font server allows the use
of a wide variety of fonts as the X server software is otherwise
restricted to bitmap fonts. During retrieval, the font server can
uncompress, scale and convert fonts for the X server and can help
simplify the management of fonts for groups of terminals and network
clients. Font server software is part of many Linux distributions and has
been incorporated into X consortium software available from
ftp.x.org.
To indicate the use of a font server, a tcp service entry is used instead
of a font path in the X terminal's host resident configuration file or
console setup menu.
Format of tcp service entry:
tcp/<IP address of font server>:<port used by font server>
Example:
tcp/10.0.0.1:7100
An example of an entry in the X terminal configuration file found on the
boot host:
xserver-default-font-path = {
{ "tcp/10.0.0.1:7100" }
{ "built-ins" }
}
The xset command with the tcp service entry can used to add the font server
to the path:
xset +fp tcp/10.0.0.1:7100
WARNING: Certain versions of NCDware require the font server entry to be
listed first before X terminal 'built-in' fonts. This is contrary to the
NCD documentation "System Administrator's Guide for UNIX Systems".
Experiment with the order of the font path and verify it with the
'xset q' command.
On the font server host, the server is started at boot time from the
rc.local startup script. The font server (xfs) is started with the
following command:
xfs -config <config file path> -port <font server port number>
The standard font server port is 7100.
Example:
xfs -config /usr/X11/lib/X11/fs/config -port 7100
Example font server configuration file:
# font server configuration file
# allow a max of 10 clients to connect to this font server
client-limit = 10
# when a font server reaches its client limit, start up a new one
clone-self = on
# use the UNIX syslog utility to log errors.
use-syslog = on
# list of font directories
catalogue = /usr/X11R6/lib/X11/fonts/misc/,
/usr/X11R6/lib/X11/fonts/Speedo/,
/usr/X11R6/lib/X11/fonts/Type1/,
/usr/X11R6/lib/X11/fonts/75dpi/,
/usr/X11R6/lib/X11/fonts/100dpi/
# file used to log errors if syslog is not used.
error-file = /usr/X11R6/lib/X11/fs/fs-errors
# 12 point in decipoints
default-point-size = 120
# 100 x 100 and 75 x 75
default-resolutions = 75,75,100,100
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