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The following directory listing shows all files created in the "HELIOSDIR" file system after installation (Fig. 27):

Fig. 27: HELIOS directory tree
helios	HELIOS product directory	readonly
bin	All available applications/tools	readonly
etc	Additional installation files	readonly
lib	Lib files shared for all applications	readonly
public	Mac & Win applications (UTF-8 volume)	readonly
sbin	Server background applications	readonly
var	All configuaration data	read/write

The "HELIOSDIR" directory contains besides its six subdirectories ("bin", "etc", "lib", "public", "sbin", and "var") a number of "Manifest.xxx" files which list the installed files for each installed HELIOS product. The files "Manifest.base" and "Manifest.data" are obligatory and exist always after the HELIOS base installation. Other "Manifest.xxx" files are created with each HELIOS product that is installed, e.g. "Manifest.es" appears after the installation of EtherShare, "Manifest.pcshare" after a PCShare installation, etc.

In the following, we shortly describe the content of the subdirectories in "HELIOSDIR" and provide more detailed information on the files in "bin", "sbin", "var/conf" and "var/spool".

The "HELIOSDIR/bin" directory contains all available applications and tools, e.g. user utility and test programs:

"chpasswd", " hupd", "infocmp", "lcheck", "license", "locktable", "lpc", "lpq", "lpr", "lprm", "lscom", "machid", "oiinfo", "prefdump", "prefrestore", "prefvalue", "psresolve", "slptool", "srvutil", "start-helios",
"stop-helios", "swho", "tic", "uniconv", and "uwhat".

The "HELIOSDIR/etc" directory contains additional installation files in the subdirectories "install", "uninstall", "licversions", "daily", "kernel", "modes", "pdfweb", "prefs", "runonce", "startstop", "termdefs", "terminfo", and "updates".

This directory contains the default preferences of each installed server which are loaded into the
"HELIOSDIR/var/conf/Preferences" file.

"HELIOSDIR/lib" with its subdirectory "OpenImage" contains library files and other resources which are shared by all applications.

The "HELIOSDIR/public" directory contains Macintosh and Windows applications in the directories "ReadMe", "Documentation", "MacOS" and "Windows". The applications are available to remote Macintosh/Windows users via the "HELIOS Applications" volume (Apple "Chooser") and "helios_apps" directory (Windows "Network Neighborhood").

The "HELIOSDIR/sbin" directory contains applications which are automatically started by the server: "uninstall", "balanceif", "cloneif", "heliosgroups", "demouser", "demovol", "homevol", "diskif", "getlocalfs", "helios.daily", "holdif", "ifstat", "logrotate", "lpd", "pcap", "psof", "setmode", "shmif", "slpsrv", "srvsrv", "tcpif", "timeif", "update-versions", "yp-update", "execdaemon", or "exechelper". Some of them, such as "slpsrv" or "srvsrv" run permanently in the background,

Important: The files in the "HELIOSDIR/sbin" directory should never be started manually.

The "HELIOSDIR/var" directory contains all configuration data and is the only subdirectory in "HELIOSDIR/" that is "read-write".

The "ICC-Profiles" directory, which is available as a shared network volume, contains subdirectories for scanner, monitor and printer profiles as well as the index file "!profile.inx" which lists all profiles.

"OpenImage" usually contains no permanent data. OpenImage-specific processes store files temporarily in this directory and delete them when they have accomplished their tasks.

"tmp" usually contains no permanent data. Some products, such as PrintPreview, store files temporarily in this directory and delete them when they have accomplished their tasks.

This file contains the access list with the IP addresses which are permitted to log on to, i.e. use, HELIOS services. The access list can be modified with EtherShare Admin (Menu Lists > IP Access), or with PCShare Admin (Setup > IP Access).

Per default (after installation), the "ipaccess" file provides no access restrictions. In order to set up access restrictions use EtherShare Admin or PCShare Admin as described above, or copy the content of the file "ipaccess.local" to "ipaccess".

To allow remote access to the LPD of a machine, independent of the entries in the main "ipacces" list, it is possible to create a "HELIOSDIR/var/conf/ipaccess.lpd" file which will only be used by the LPD daemon.

This file contains HELIOS software license(s) which can be seen, erased and added by use of the tools which are described in 4.3 "Licenses".

The UNIX file "passwd" contains a list of all HELIOS users on the system. An entry line in this file specifies for each user user name and password in encrypted form.

HELIOS preferences are stored in this (binary) file. Preferences with default values, i.e. that have not been changed, do not appear in this file. The programs "prefdump", "prefrestore", and "prefvalue", which are explained in
6 "HELIOS utility programs", could be used to create and update this file. But we strongly recommend to change preference values with EtherShare or PCShare Admin.

Each printer queue requires an entry in "printcap" to describe in detail the way in which the associated physical printer is connected.

The dictionary for the "Linotype color separation" process is now incorporated in the printer interfaces and not contained in this directory anymore.

The "psfonts" directory contains all PostScript (Type1 and Type3) fonts that are installed on the host via EtherShare Admin.

This directory contains the metadata for all existing printer queues which have been created on the server. The default queues are "hold" and "error". The directory of each printer queue contains amongst others the "FONTS" and "PPD" files. The "FONTS" file contains a list of all PostScript fonts, the "PPD" file the selected PPD for the specified printer queue installed on the server.


HELIOS Base User manual

HELIOS Base User manual