Provided by: ltsp-server_5.18.12-3_all bug

NAME

       lts.conf - Main configuration file for LTSP

SYNOPSIS

       Any line beginning with a '#' is considered a comment. Options are of the format:

       VARIABLE=value

DESCRIPTION

       This  file  gets  parsed when LTSP client starts up. The section defined by [default] gets
       applied to all clients, unless there is a  specification  for  a  particular  client  that
       overrides it. The per-client specs are prefixed by [<mac address>]

       You may also name an arbitrary section with a name, with settings underneath that section.
       You may then inherit that section with the LIKE  variable.  The  Example  section  has  an
       illustration of this.

       boolean values are specified by 'Y,y,True,true' for true and 'N,n,False,false' for false.

GENERAL PARAMETERS

       CONFIGURE_FSTAB
        boolean, default True

       /etc/fstab is generated by boot scripts

       FSTAB_0...FSTAB_9
        string, default unset

       Complete lines to add to /etc/fstab, for example:

              FSTAB_1="server:/home /home   nfs  defaults,nolock 0  0"

       CRONTAB_01...CRONTAB_10
        string, default unset

       A crontab line to add for a thin client.

       DNS_SERVER
        IP address, default unset

       A  valid IP for domain name server Used to build the client's resolv.conf file. Not needed
       by default.

       SEARCH_DOMAIN
        string, default unset

       sets a valid  search  domain  in  the  clients's  resolv.conf  file.  Used  to  build  the
       resolv.conf file. Not needed by default.

       Needed if DNS_SERVER is set

       HOSTNAME
        string, default unset

       This  parameter  sets  the host name for the thin client, for situations when if no DNS is
       available. A hostname is auto-generated if no hostname is set.

       HOSTNAME_BASE
        string, default ltsp

       This parameter sets the base for the autogenerated host name for the thin client.

       HOSTNAME_EXTRA
        string, default ip

       This parameter determines weather autogenerated host names are appended  with  information
       based on the ip address or mac address. Values are "ip" or "mac".

       NBD_SWAP
        boolean, default False

       Set this to True if you want to turn on NBD swap.

       If  unspecified, it's automatically enabled for thin clients with less than 300 MB RAM and
       for fat clients with less than 800 MB RAM.

       NBD_SWAP_PORT
        integer, default 10809

       The port on which NBD swapping will occur. An nbd-server export  named  swap  is  normally
       used.

       NBD_SWAP_SERVER
        IP address, default SERVER

       The NBD swap server can exist on any server on the network that is capable of handling it.
       You can specify the IP address of that server. The default is whatever the value of SERVER
       set to.

       NBD_SWAP_THRESHOLD
        integer, default 300

       Automatically  enable  NBD_SWAP  if  the  client  has less RAM than the specified. For FAT
       clients, it defaults to 800.

       RM_SYSTEM_SERVICES
        string, default unset

       A space separated list of services that shouldn't start on the  clients  even  if  they're
       installed, for example:

              RM_SYSTEM_SERVICES="apache2 dnsmasq mysql nbd-server nfs-kernel-server"

       RM_THIN_SYSTEM_SERVICES
        string, default unset

       Same as RM_SYSTEM_SERVICES, but it only affects thin clients.

       KEEP_SYSTEM_SERVICES
        string, default unset

       Some  services  are  deleted  by default when an LTSP client boots, either to save RAM, or
       because they don't make sense for netbooted machines. If you need some  of  them  you  can
       list them in KEEP_SYSTEM_SERVICES, for example:

              KEEP_SYSTEM_SERVICES="acpid avahi-daemon bluetooth cups"

       SERVER
        IP address, default unset

       This  is  the  server  that  is  used  for  the  XDM_SERVER,  TELNET_HOST,  XFS_SERVER and
       SYSLOG_HOST, if any of those are not specified explicitly. If you have one machine that is
       acting  as  the server for everything, then you can just specify the address here and omit
       the other server parameters. If this value is not set, it will be  auto  detected  as  the
       machine that the thin client booted from.

       SYSLOG_HOST
        IP address, default unset

       If  you want to send logging messages to a machine other than the default server, then you
       can specify the machine here. If this parameter is NOT specified, then  it  will  use  the
       SERVER parameter described above.  Starting from LTSP 5.4.1 and on, this parameter must be
       specified to enable remote logging.

       You have to configure your server to accept remote logging as well.

       USE_LOCAL_SWAP
        boolean, default False

       If you have a hard drive installed in the thin client, with a valid swap partition on  it,
       this parameter will allow the thin client to swap to the local hard drive.

       TIMEZONE
        string, default unset

       The timezone code for the thin client to use.

       TIMESERVER
        IP address, default unset

       The  address  of an NTP time server that the thin client can set it's time from. If unset,
       the thin client just uses the BIOS time.

       SHUTDOWN_TIME
        string, format hh:mm:ss in 24 hour format, default unset

       Time at which thin client will automatically shut down.

       LTSP_FATCLIENT
        boolean, default unset

       Enable  Fat  Client  support.  It's  automatically  enabled  if  any  sessions  exist   in
       /usr/share/xsessions.

       FAT_RAM_THRESHOLD
        integer, default 300

       Disable fat client support if less RAM is present.

LOCAL DEVICES

       LOCALDEV
        boolean, default True

       This  parameter  enables  local  devices support, like CD's and USB sticks. Users plugging
       them in should see them on the desktop, after they've been  allowed  to  access  the  FUSE
       subsystem  on  the  server. Check your distribution's docs to see how this is done on your
       distribution.

       LOCALDEV_DENY_CD
        boolean, default False

       This parameter disables local device support for CD and DVD-rom devices.

       LOCALDEV_DENY_FLOPPY
        boolean, default False

       This parameter disables local device support for floppy devices.

       LOCALDEV_DENY_INTERNAL_DISKS
        boolean, default True

       This parameter disables local device support for internal ATA and SCSI hard disk devices.

       LOCALDEV_DENY_USB
        boolean, default False

       This parameter disables local device support for USB devices.

       LOCALDEV_DENY
        string, default unset

       This parameter disables local device support for devices matching certain patterns. Values
       are  specified  as  a  comma-separated  list of sysfs attributes, which can be obtained by
       using udevadm info (or udevinfo). for example:

              udevadm info -q env -n /dev/hda
              ID_TYPE=disk
              ID_BUS=ata

       should return a list of the attributes relevant to /dev/hda.  to  exclude  this  disk  and
       disks  like  it  using  LOCALDEV_DENY: LOCALDEV_DENY="ID_BUS:ata+ID_TYPE:disk" would match
       devices that were on the ata bus that were disks.

SCRIPTS AND MODULES

       MODULE_01...MODULE_10
        string, default unset

       Up to 10 kernel modules can be loaded by using these  configuration  entries.  The  entire
       command line that you would use when running insmod can be specified here. For example:

              MODULE_01 = uart401.o
              MODULE_02 = "sb.o io=0x220 irq=5 dma=1"
              MODULE_03 = opl3.o

       If  the value of this parameter is an absolute path name, then insmod will be used to load
       the module.  Otherwise, modprobe will be used.

       In normal circumstances, you shouldn't need to specify anything  here,  as  most  hardware
       will be auto-detected.

       RCFILE_01...RCFILE_10
        string, default unset

       Commands to be executed from /etc/rc.local when the client boots.

PRINTER PARAMETERS

       PRINTER_0_DEVICE
        string, default unset

       The  device  name of the printer. Valid device names such as /dev/lp0, or /dev/usb/lp0 are
       allowed.

       PRINTER_0_PORT
        integer, default 9100

       The TCP/IP Port number to use for the print server.

       PRINTER_0_TYPE
        string, default unset

       Can either be set to P (for parallel), U (for USB) or S (for serial). Autodetected in most
       cases (except for serial).

       PRINTER_0_WRITE_ONLY
        boolean, default False

       Some  parallel  printers  may need this set in order for the thin client to communicate to
       them properly. If you have problems with a parallel printer  only  printing  part  of  the
       print job, try setting this to True.

       PRINTER_0_SPEED
        integer, default 9600

       Should be set to the baud rate of the printer (serial printers only).

       PRINTER_0_FLOWCTRL
        string, default unset

       Should be set to the flow control desired for the printer (serial printers only).

       PRINTER_0_PARITY
        boolean, default False

       Specifies whether parity should be enabled for the printer (serial printers only).

       PRINTER_0_DATABITS
        integer, default 8

       Specifies how many data bits for the printer (serial printers only).

       PRINTER_0_OPTIONS
        string, default unset

       Specifies specific options for the printer (serial printers only).

       LDM_PRINTER_LIST
        string, default unset

       Comma  separated  list  of  printers that will be displayed for that thin client (requires
       patched cups, included in Debian and Ubuntu).

       LDM_PRINTER_DEFAULT
        string, default unset

       Default printer for the thin client.

       SCANNER
        boolean, default unset

       This parameter enables scanners for the thin client.

KEYBOARD PARAMETERS

       CONSOLE_KEYMAP
        string, default en

       A valid console keymap. Allows you to specify  a  valid  console  keymap  for  TELNET_HOST
       sessions.

       XKBLAYOUT
        string, default unset

       A valid xkb layout. Consult the X.org documentation for valid settings.

       XKBMODEL
        string, default unset

       A valid xkb model. Consult the X.org documentation for valid settings.

       XKBVARIANT
        string, default unset

       A valid xkb variant. Consult the X.org documentation for valid settings.

       XKBRULES
        string, default unset

       A valid xkb rules specifier. Consult the X.org documentation for valid settings.

       XKBOPTIONS
        string, default unset

       A valid xkb options specifier. Consult the X.org documentation for valid settings.

TOUCHSCREEN PARAMETERS

       USE_TOUCH
        boolean, default unset

       Enable touchscreen.

              X_TOUCH_DEVICE     Path to device       /dev/ttyS0    set device for touchscreen
              X_TOUCH_DRIVER     Touchscreen driver   elographics   set driver for touchscreen
              X_TOUCH_MAXX       integer              3588          Xmax
              X_TOUCH_MAXY       integer              3526          Ymax
              X_TOUCH_MINX       integer              433           Xmin
              X_TOUCH_MINY       integer              569           Ymin
              X_TOUCH_UNDELAY    integer              10            Untouch delay
              X_TOUCH_RTPDELAY   integer              10            Repeat touch delay

SOUND AND VOLUME CONTROL PARAMETERS

       These parameters allow you to control the volume on the thin client.

       SOUND
        boolean, default True

       This parameter enables sound for the thin client.

       SOUND_DAEMON
        string, default pulse

       This  parameter  sets  which sound daemon to use on the thin client. Values are esd, nasd,
       and pulse (default).

       VOLUME
        integer, default 90

       This represents an integer percentage of the volume, ranging from 0 to 100%.

       HEADPHONE_VOLUME
        integer, default unset

       This represents an integer percentage of the headphone volume, ranging from 0 to 100%.

       PCM_VOLUME
        integer, default unset

       This represents an integer percentage of the PCM volume, ranging from 0 to 100%.

       CD_VOLUME
        integer, default unset

       This represents an integer percentage of the CD input volume, ranging from 0 to 100%.

       FRONT_VOLUME
        integer, default unset

       This represents an integer percentage of the front speaker volume, ranging from 0 to 100%.

       MIC_VOLUME
        integer, default unset

       This represents an integer percentage of the microphone input volume, ranging  from  0  to
       100%.

XORG PARAMETERS

       These parameters affect how Xorg behaves.

       USE_XFS
        boolean, default False

       Instructs the thin client to look at the XFS_SERVER option, and use XFS for serving fonts.

       XFS_SERVER
        IP address, default unset

       If  you  are using an X Font Server to serve fonts, then you can use this entry to specify
       the IP address of the host that is acting as the font server. If this is not specified, it
       will use the default server, which is specified with the SERVER entry described above.

       CONFIGURE_X
        boolean, default False

       If  you  want to be able to configure the individual settings of the X configuration file,
       without having the X automatically configure the graphics card for you,  you  must  enable
       this option. By default this option is turned off. To turn it on do:

              CONFIGURE_X = True

       You  don't  need  this  option just for keyboard and mouse settings. It corresponds to the
       graphic card and monitor options only.

       X_CONF
        string, default unset

       If you want to create your own complete X.org config file, you can do so and place  it  in
       the  /opt/ltsp/<arch>/etc/X11  directory. Then, whatever you decide to call it needs to be
       entered  as  a  value  for  this   configuration   variable.   For   example:   X_CONF   =
       /etc/X11/my-custom-xorg.conf  Note  that  for  the  thin  client,  you  reference  it from
       /etc/X11.

       X_RAMPERC
        integer, default 100

       Percentage of RAM for X server. Some programs allocate a large amount of ram in the  X.org
       server  running  on  your thin client. Programs like Firefox and Evince can use up so much
       ram, that they eventually exhaust all your physical ram, and NBD swap, causing  your  thin
       client to crash. If you find your clients being booted back to a login prompt, or freezing
       up when viewing certain PDF's or web pages, this may be the problem.

       The X_RAMPERC variable stands for X RAM PERCent, and is a number between 0  and  100  that
       specifies  how  much  of  the  free space on your thin client X.org is allowed to consume.
       You'll generally want to set it at something lower than  100  percent,  if  you're  having
       problems.  Experimentation  has  shown  a  value  between  80 and 90 will usually keep the
       terminal alive. What will then happen is the program consuming the  memory  will  die,  as
       opposed  to  the  thin  client  itself.  If  you're  having unexplained terminal problems,
       specifying:

              X_RAMPERC = 80

       in your lts.conf file may improve things.

       X_VIRTUAL
        string, default unset

       If you want to have a virtual screen which is larger than the physical screen on your thin
       client, you would configure that by providing a
        string of the form "width height" in this parameter, similar to the xorg.conf format.

       XDM_SERVER
        IP address, default unset

       If  you're  using  the  older  startx screen script, and need to specify a different XDMCP
       server, then you can specify the server here. If this parameter is NOT specified, then  it
       will use the SERVER parameter described above.

       XSERVER
        string, default unset

       You  can  use  this parameter to override which X server the thin client will run. For PCI
       and AGP video cards, this parameter  should  not  be  required.  The  thin  client  should
       normally be able to auto-detect the card.

       If, for some reason you do need to manually set it, here are some valid values:

       ark,  ati, atimisc, chips, cirrus_alpine cirrus, cirrus_laguna, cyrix, dummy, fbdev fglrx,
       glint, i128, i740, i810, imstt, mga, neomagic, newport, nsc, nv, r128, radeon,  rendition,
       riva128,  s3, s3virge, savage, siliconmotion, sis, sisusb, tdfx, tga, trident, tseng, v4l,
       vesa, vga, via, vmware, voodoo

       X_MOUSE_DEVICE
        string, default unset

       This is the device node that the mouse is connected to. If it  is  a  serial  mouse,  this
       would  be  a serial port, such as /dev/ttyS0 or /dev/ttyS1. This is not needed for PS/2 or
       USB mice, as they are auto-detected.

       X_MOUSE_PROTOCOL
        string, default unset

       Should be auto-detected. However, valid entries include:

       sunkbd, lkkbd, vsxxxaa, spaceorb, spaceball,  magellan,  warrior,  stinger,  mousesystems,
       sunmouse,   microsoft,   mshack,   mouseman,   intellimouse,   mmwheel,  iforce,  h3600ts,
       stowawaykbd, ps2serkbd, twiddler, twiddlerjoy

       X_MOUSE_EMULATE3BTN
        boolean, default unset

       Normally unset, may need to be set to Y for certain 2 button mice.

       X_NUMLOCK
        boolean, default False

       If this variable is set to True, then the numlock key will be defaulted  to  on  when  the
       terminal boots. Note that the numlockx command must be installed in the chroot for this to
       work.

       X_COLOR_DEPTH
        Integer, default unset

       This is the number of bits to use for the colour depth. Possible values are 8, 16, 24  and
       32.  8  bits  will  give  256 colours, 16 will give 65536 colours, 24 will give 16 million
       colours and 32 bits will give 4.2 billion colours! Not all X servers support all of  these
       values.  The  default for thin clients is 16 in order to minimize network bandwidth, while
       for fat clients the X server default is used.

       X_SMART_COLOR_DEPTH
        boolean, default True

       If set, thin clients no longer default to 16 bit colour depth but use the X server default
       instead.

       X_HORZSYNC min-max, default unset

       This  sets  the  X.org HorizSync configuration parameter. This should be auto-detected for
       your monitor, however, if you want to force a lower resolution, use this parameter  to  do
       so.

       X_VERTREFRESH min-max, default unset

       This  sets the X.org VertRefresh configuration parameter. This should be auto-detected for
       your monitor. If you need to force a lower resolution, use this parameter to do so.

       X_VIDEO_RAM
        string, default unset

       This sets the X.org VideoRam configuration parameter. The setting is  in  kilobytes.  This
       should  be  auto-detected  for  your  monitor.  If you need to force a different video ram
       setting, use this parameter to do so.

       X_OPTION_01...X_OPTION_12
        string, default unset

       A valid Device option. This allows you to specify Option settings in the  xorg.conf  file,
       to  add  options  to  the  video driver. A common use for this will be to test turning off
       acceleration in your driver, if you're having trouble. An example usage would be:

              X_OPTION_01 = "\"NoAccel\"" X_OPTION_02 = "\"AnotherOption\" \"True\""

       You probably won't need these except in special circumstances.

       X_MONITOR_OPTION_01...X_MONITOR_OPTION_10
        string, default unset

       A valid Monitor option, that would normally be used in an xorg.conf file.

       X_MODE_0...X_MODE_2
        string, default unset

       These set the X.org ModeLine configuration. For example, if your thin client comes up in a
       higher resolution than what you want, say, 1280x1024, specifying:

              X_MODE_0 = 1024x768

       should get your desired resolution on startup.

       X_MODE_*  require  XRANDR_DISABLE=True  to  work.  For  drivers  that  support XRANDR, the
       XRANDR_MODE_* variabled are preferred. See the XRANDR section.

       X_BLANKING
        integer, default unset

       When set, X_BLANKING will cause DPMS standby to  activate  after  the  number  of  seconds
       provided.  If  the  monitor  does  not  support  DPMS,  then the blanking screensaver will
       activate. If X_BLANKING is set to 0, the monitor will remain on indefinitely.  NOTE:  This
       does  not  apply  to the xdmcp or startx screen script. Also, server-side Xclients such as
       power managers and screensavers may override this setting.

XRANDR OPTIONS

       XRANDR_COMMAND_0...XRANDR_COMMAND_9
        string, default unset

       Full xrandr command to run when X starts. They're useful to define and add  custom  modes,
       for example:

              XRANDR_COMMAND_0="xrandr --newmode 1024x600 49.00 1024 1072 1168 1312 600 603 613 624 -hsync +vsync"
              XRANDR_COMMAND_1="xrandr --addmode VGA1 1024x600"
              XRANDR_COMMAND_2="xrandr --output VGA1 --mode 1024x600"

       You can use cvt to find the correct timings for new modes.

       XRANDR_DISABLE
        boolean, default False

       Disables  XRANDR  output  handling  so  that  the older X_MODE_0 way of setting resolution
       works. This is useful on older Xorg drivers that don't support XRANDR.

       XRANDR_OUTPUT_0...XRANDR_OUTPUT_8
        string, default unset

       Define xrandr output - can also be used for multihead positioning

       XRANDR_MODE_0...XRANDR_MODE_8
        string, default unset

       Valid video mode resolution. Sets mode for corresponding output.

       XRANDR_NEWMODE_0...XRANDR_NEWMODE_8
        string, default unset

       Specifies a valid modeline for a corresponding output.

       XRANDR_RATE_0...XRANDR_RATE_8
        string, default unset

       Sets refresh rate for the corresponding output.

       XRANDR_DPI_0...XRANDR_DPI_8
        string, default unset

       Sets the DPI for the corresponding output.

       XRANDR_ROTATE_0...XRANDR_ROTATE_8
        string, default unset

       Sets the rotation for the corresponding output.

       XRANDR_REFLECT_0...XRANDR_REFLECT_8
        string, default unset

       Sets the reflection for the corresponding output.

       XRANDR_SIZE_0...XRANDR_SIZE_8
        string, default unset

       Sets the resolution for the corresponding output (for xrandr <1.2).

       XRANDR_ORIENTATION_0...XRANDR_ORIENTATION_8
        string, default unset

       Sets the orientation for the corresponding output (for xrandr <1.2).

SCREEN SCRIPTS

       SCREEN_01...SCREEN_12
        string, default ldm

       Up to 12 screen scripts can be specified for a thin client. This will give you  up  to  12
       sessions  on  the  thin  client,  each  accessible  by  pressing  the  Ctrl-Alt-F1 through
       Ctrl-Alt-F12 keys.

       Currently, possible values include: kiosk, ldm, menu, rdesktop (deprecated),  shell,  ssh,
       startx (deprecated), telnet, xdmcp, xfreerdp, xterm

       Look in the $CHROOT/usr/share/ltsp/screen.d directory for more scripts, or write your own,
       and put them there.

       TELNET_HOST
        IP address, default unset

       If the thin client is setup to have a character based interface, then the  value  of  this
       parameter  will be used as the host to telnet into. If this value is NOT set, then it will
       use the value of SERVER above.

LDM OPTIONS

       LDM_AUTOLOGIN
        boolean, default False

       This option allows the thin client to login automatically without the need for a  username
       and password. To set it set:

              LDM_AUTOLOGIN = True

       for  the  corresponding  thin  client.  This  will  attempt to log in the thin client with
       username = hostname and password = hostname. You can also set a  user  and  password  with
       LDM_USERNAME and LDM_PASSWORD variables.

       LDM_DEBUG_TERMINAL
        boolean, default False

       Opens a local terminal after login for debugging purposes.

       LDM_DIRECTX
        boolean, default False

       This is arguably the most important LDM option, as it allows you to turn off the encrypted
       X tunnel via SSH, and instead run a less secure, but much faster unencrypted tunnel. Users
       who  have  slower thin clients will want to set this to True. It is set to True by default
       in Fedora.

       LDM_GUESTLOGIN
        boolean, default False

       This option places a GUEST LOGIN button  underneath  the  entry  field  for  username  and
       password. To set it set:

              LDM_GUESTLOGIN = True

       for the corresponding thin client. You can also set a user and password with:

              LDM_USERNAME = John

       and:

              LDM_PASSWORD = secret

       although not setting these will default to the hostname of the thin client.

       LDM_GUEST_SERVER
        string, default unset

       This  is a space-separated list of available servers where guest logins are available. The
       first server in the list will be the default guest login server unless  the  user  selects
       another from the preferences menu at login time.

       LDM_USER_ALLOW
        string, default unset

       This option allows you to give access to certain thin clients based on the username set in
       /etc/passwd. For example, thin client A should only be used by Jane, Bob, and Fred,  while
       thin  client  B  is to be used by Harry only. By adding these options to the corresponding
       mac addresses you allow or deny access to the thin clients in question. Example:

              [thin:client:A:mac:address]
              LDM_USER_ALLOW = Jane,Bob,Fred
              [thin:client:B:mac:adddress]
              LDM_USER_ALLOW = Harry

       LDM_LOGIN_TIMEOUT
        integer

       This lets LDM automatically login after the set amount of time in seconds. If you  specify
       this option, then do not specify LDM_AUTOLOGIN. Use it in this format:

              [thin:client:mac:address]
              LDM_LOGIN_TIMEOUT = 25

       Note  that  you  will  need  to  also  set LDM_GUESTLOGIN=True for LDM_LOGIN_TIMEOUT to be
       useful.

       LDM_USERNAME
        string, default unset

       This is the username that LDM will use for autologin.

       LDM_PASSWORD
        string, default unset

       This is the password that LDM will use for autologin.

       LDM_SYSLOG
        boolean, default False

       Normally, LDM logs to a simple file on the thin client, namely /var/log/ldm.log. This  has
       the  advantage  of  being  fast,  but  the  disadvantage  of  being  hard  to read for the
       administrator in the event of a problem, as the administrator must either  spawn  a  shell
       screen  session,  or  enable root login in tty1. By setting this option to "True", you can
       log up to the server if you've enabled your server's syslog for remote logging.

       LDM_SERVER
        string, default unset

       This is a space-separated list of available servers for LDM to log into. The first  server
       in  the  list  will  be  the  default  server  unless  the  user  selects another from the
       preferences menu at login time.

       LDM_LANGUAGE
        string, default unset

       This allows the system administrator to override the default locale settings on the server
       by setting the environment variables LANG, LANGUAGE and LC_ALL at login.

       Use the LANG variable to set the default locale for LDM's user interface.

       LDM_FORCE_LANGUAGE
        string, default unset

       Same  as  LDM_LANGUAGE, but it overrides any previously user selected language and it even
       hides the LDM language selection menu.

       LDM_SSHOPTIONS
        string, default unset

       Allows you to specify custom options to the ssh  sessions  started  between  LDM  and  the
       server.

       SSH_OVERRIDE_PORT
        integer, default unset

       If  you  run  your  ssh  server  different from the default, you may set the port the thin
       client will use with this parameter.

       SSH_FOLLOW_SYMLINKS
        boolean, default unset

       Causes sshfs mounted filesystems for local applications to  follow  symlinks.  By  default
       it's false for symlinks under $HOME and true for any LOCAL_APPS_EXTRAMOUNTS.

       LDM_SESSION
        string, default unset

       Used to chose the default session on the server, for example:

              LDM_SESSION="gnome-fallback"

       You can find the list of services that your server provides in /usr/share/xsessions.

       If  the  user has selected a specific session though LDM or another DM in the past, that's
       stored in his  /.dmrc, and it overrides the default session.

       LDM_FORCE_SESSION
        string, default unset

       Same as LDM_SESSION, but it overrides any previously selected sessions by the user and  it
       even hides the LDM session selection menu.

       LDM_XSESSION
        string, default Xsession

       Allows you to specify custom script on the server for LDM to run, rather than the server's
       standard script for starting an X session (usually Xsession).

       LDM_LIMIT_ONE_SESSION
        boolean, default False

       Only allow a given user to log into one thin-client at a time.

       LDM_LIMIT_ONE_SESSION_PROMPT
        boolean, default False

       Prompt to kill processes  of  other  logins  when  other  logins  are  detected.  Requires
       LDM_LIMIT_ONE_SESSION to be set.

       LDM_THEME
        string, default unset

       Specify  the name of the LDM theme. It can reference a directory in /usr/share/ldm/themes,
       or be specified as a full path to the theme dir (both relative to the chroot).

       To use the theme in /opt/ltsp/i386/usr/share/ldm/themes/MYTHEME, you'd specify:

              LDM_THEME=MYTHEME

       In your lts.conf file.

       Alternately, To use the theme in /opt/ltsp/i386/etc/MYTHEME, you'd specify:

              LDM_THEME=/etc/MYTHEME

       In your lts.conf file.

       LDM_PASSWORD_HASH
        boolean, default False

       When set to True, this will create a proper shadow  entry  on  the  client,  allowing  for
       screen  locking,  and other things which require authentication to work. Note, this allows
       you to change your password locally, or possibly other actions such  as  sudo,  but  these
       changes are only temporary and will not persist on reboot.

       versions: LDM 2.2.14+, LTSP 5.5.2+

LOCAL APPLICATIONS

       LOCAL_APPS
        boolean, default True

       Enables support for running local apps on the thin client.

       LOCAL_APPS_EXTRAMOUNTS
        string, default unset

       This  parameter  enables  extra  mount points to be mounted on the thin client with sshfs.
       This require a commas separated list of directory.

       LOCAL_APPS_MENU
        boolean, default False

       Enables overriding of menu items from remote (server) applications.  If  this  is  set  to
       True, local applications in the users menu will be used instead of the applications on the
       server.

       LOCAL_APPS_MENU_ITEMS
        string, default unset

       This item should contain a comma separated list of application names  as  they  appear  on
       their .desktop files.

       LOCAL_APPS_WHITELIST
        string, default unset

       Used  to  allow only specified space-separated commands to be run as local apps, allow all
       is default if unset. Full-paths are required for each command. No spaces in the names  are
       allowed.

EXAMPLES

       K12LTSP

              # Global defaults for all clients
              # if you refer to the local server, just use the
              # "server" keyword as value
              # see lts_parameters.txt for valid values
              ################
              [default]
              #X_COLOR_DEPTH=16
              LOCALDEV=True
              SOUND=True
              NBD_SWAP=True
              SYSLOG_HOST=server
              #XKBLAYOUT=de
              SCREEN_02=shell
              SCREEN_03=shell
              SCREEN_04=shell
              SCREEN_05=shell
              SCREEN_06=shell
              SCREEN_07=ldm
              # LDM_DIRECTX=True allows greater scalability and performance
              # Turn this off if you want greater security instead.
              LDM_DIRECTX=True
              # LDM_SYSLOG=True writes to server's syslog
              LDM_SYSLOG=True

              ################
              # A setting stanza for an old machine
              ################
              [oldmachine]
              X_COLOR_DEPTH=8
              X_MODE_0=800x600

              ################
              # Example of the LIKE variable
              ################
              [01:23:DE:AD:BE:EF]
              LIKE=oldmachine
              SCREEN_02=shell

              ################
              #[MAC ADDRESS]: Per thin client settings
              ################
              [00:11:25:84:CE:BA]
              XSERVER = vesa
              X_MOUSE_DEVICE=/dev/ttyS0
              X_MOUSE_PROTOCOL=intellimouse

              ###############
              # A Thin Client Print server
              # (switch off X by pointing tty7 to shell,
              # to save resources)
              ###############
              [00:11:25:93:CF:00]
              PRINTER_0_DEVICE=/dev/usb/lp0
              SCREEN_07=shell

              ###############
              # A workstation that executes a specific
              # command after login
              ###############
              [00:11:25:93:CF:02]
              LDM_SESSION=/usr/bin/myloginscript

NOTES

       When using NBD to export the client image (the default in Ubuntu), lts.conf is fetched via
       TFTP,   so   lts.conf    should    go    in    the    TFTP    directory,    for    example
       dvar/lib/tftpboot/ltsp/i386/lts.conf.  For  distributions  that  use  NFS, the traditional
       lts.conf place is /opt/ltsp/i386/etc/lts.conf, although  in  recent  versions  it  can  be
       fetched via TFTP as well.

                                             2018-12                                  lts.conf(5)