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Date : 2017/10/31 01:43
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Hostname : HSI-KBW-134-3-37-90.hsi14.kabel-badenwuerttemberg.de
Old Revision: https://wiki.x2go.org/doku.php/doc:howto:tce?rev=1509354556
New Revision: https://wiki.x2go.org/doku.php/doc:howto:tce
Edit Summary: added description for "throttle" parameter
User : stefanbaur
@@ -743,8 +743,9 @@
*
''pubkey=tftp|http|https|ftp://your-http-server-ip-or-dns-here/x2go-tce/x2go-tce.authorized_keys''
- Allows you to add an ssh public key file to the ThinClient, so your
administrators can log in remotely using SSH. Note that this file needs to be
chmodded 644, not 600, on the web server. **Attention: Whoever manages to
spoof this server name will have root access to your ThinClients. Using HTTPS
will mitigate this - an attacker would not only have to spoof the server
name, but also the matching certificate.**
* ''session=sessionname'' - use this to specify a session by name that should be
pre-selected on startup. The name must be listed in the sessions file and may only
contain characters from the following charset: //a-zA-Z0-9.:/ _-// (We suggest naming the
default session ''default'' and using ''session=default''.) When using a session name
with blanks, please enclose the sessionname in either single or double quotes, like so:
''session="session name"'' / ''session='session name''' As of 2017-10-26, this
feature is only available in builds created from the
https://github.com/LinuxHaus/live-build-x2go::feature/openbox repository/branch. The
official repository will follow soon (or so we hope ;-)).
* ''tcpprint'' - Will allow you to use local LPT/USB printers like "dumb" network
printers (listening to port 9100 and above). Requires MAC->IP mapping in DHCP server (and
optionally, DNS->IP mapping), or static IPs - else your print jobs will
end up on random devices. This setup is preferred over the X2GoClient's built-in printing for locally attached printers if X2GoServer and ThinClients are on the same network. It is not recommended when your X2Go connection goes across the internet or when the ThinClient is actually a laptop roaming between different networks. **Attention:** When used without ''tcpprintonlyfrom'' (see below), this means anyone that can reach your thin client via e.g. ping can also send print jobs to it!
* ''tcpprintonlyfrom=x.x.x.x'' - Will allow you to specify which IP address may connect to Port 9100 and above for printing to a locally attached LPT/USB printer. This should be the IP of your CUPS server or whatever print server system you use. Understands the same syntax as xinetd's ''only_from''.
+ * ''throttle=n|n:n:n:n:n'' - Will throttle down- and upload speed (''throttle=n'') or set throttling limits as follows: download:upload:smoothingtime:smoothinglength:latency. Defaults for up-
and download are 10 (KiloBytes/s), 3.0 (seconds, using decimals is permitted) smoothingtime, 20
(KiloBytes), 0 (ms). for a detailed description of these parameters, see "man trickle".
You can use the first 1, 2, 3, 4 or all 5 parameters. To set down- and/or upload speed to
unlimited, use the letter "u" instead of a numeric value. As of 2017-10-31, this feature
is only available in builds created from the
https://github.com/LinuxHaus/live-build-x2go::feature/openbox repository/branch. The official
repository will follow soon (or so we hope ;-)).
* ''xinerama=left-of|right-of|above|below|same-as'' - Allows you to specify how
multiple screens are handled (same-as clones the primary screen to all secondary screens,
the other commands will cascade and thus expand the screen). Note that the current
implementation will enforce "same-as" if it detects a touch screen driver
(wacom) and no other pointing device. This is so you won't get stuck being unable to log
off, for example, due to
your touch device being limited to one screen.
* ''xorg-resolution=HRESxVRES'' - will force the horizontal resolution to
HRES and the vertical resolution to VRES, e.g. ''xorg-resolution=1280x1024'',
useful if autodetection for the correct screen size fails, but you do get as
far as seeing the X2Go GUI
*
''xorgconfurl=tftp|http|https|ftp://your-http-server-ip-or-dns-here/x2go-tce/x2go-tce.xorg.conf''
- when a client outright refuses to boot into the graphical X2Go login screen,
but gets stuck at the console or a black screen instead, yet you can get the
GUI to work using a regular Linux on the same hardware, you can disable the X
Server's autodetection and force it to use the xorg.conf specified here. Note
that you should use a more descriptive name for the file, as described below.
Also note that whoever manages to spoof the server name can inject rogue xorg
config files into your ThinClients. To mitigate this risk, use HTTPS, where
the attacker would have to spoof both
server name and matching certificate.
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