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X2Go Talk @ IT-Kongress, University of Applied Sciences, Neu-Ulm, Germany (2014-11-13)
by Stefan Baur 22 May '14

22 May '14

Hey everyone, I am happy and proud to announce that the X2Go project has been given the opportunity to present a few of the different use cases X2Go has to offer. More details to follow. :-) Of course, there's already a Wiki entry covering the event: http://wiki.x2go.org/doku.php/events:start?&#talk_it-kongress_university_of… -Stefan

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Today: X2Go on FLOSS weekly
by Mike Gabriel 22 May '14

22 May '14

Hi all, for those who are interested... Mike#2 and Mike#1 from the X2Go developer team will be on FLOSS weekly tonight/today/this morning (depending on where you live). The show starts at 15:30h UTC (on 21st May 2014) at [1]. light+love, Mike [1] http://twit.tv/show/floss-weekly -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

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Postgres configuration for load balancing
by Short, Kermit 20 May '14

20 May '14

Greetings, While I haven't been able to compile the x2go client for our IGELs, I'm pushing forward with the project using the existing version. As such, I'm trying to create a load balancing cluster, but I'm stuck adding users to the postgresql database, and I need to do a sanity check. Assumption 1: I have to manually create each user in the database for that user to have group membership and/or be able to log in and create a session on the load balanced server. Assumption 2: The x2godbadmin script must be run as root to gain access to the root-only file containing the postgres database managment user's password. If either of those assumptions are incorrect, please advise. My problem is that all of our home directories are on root-squashed NFS volumes. As the script is running under root's context, the script is unable to create ~/.x2go/sqlpass, which would seemingly prevent the user from being able to utilize any member of the load balancing cluster. Obviously, if I can simply pass through PAM credentials and LDAP lookups without the need for this information to live in a postgresql database, none of this is a problem. Likewise, if I can run the x2godbadmin script as each individual user, while extremely painful, I can write a script to do this. Am I way off in the woods on my logic here? Thanks! -- Kermit Short

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Possible to use server SSH key like FreeNX?
by Jasmine Lognnes 20 May '14

20 May '14

Dear readers, In FreeNX it is possble to change the default SSH key, so in addition to have a valid username+passphrase to the host, the user also needs a SSH key. The SSH key is the same for all users. Is this also possible in x2go? Kindest regards, Jasmine =)

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Re: [X2Go-User] Session suspending after resize
by Jean Gottschalk 20 May '14

20 May '14

> > Hello, > > Is someone able to help with the below? If you could just point me in the > right direction or suggest some ideas, I may be able to investigate > further... > > Jean > On May 7, 2014 7:40 AM, "Jean Gottschalk" <jean(a)gottschalk.us> wrote: > >> Hello, >> >> I am still trying to figure out why the automatic session resizing (when >> moving between clients with different screens, for example a desktop and a >> laptop) doesn't work anymore since I started using MATE. >> >> Since the latest x2goclient upgrade, I noticed the following behavior: >> when I resume a session on a client with a different screen size, the >> screen will resize, but the session immediately suspends. Then when I login >> to the same session again (on the same client, so no screen resolution >> change), the session stays up. >> >> When the session suspends, the log simply looks like this: >> >> *Session: Session resumed at 'Tue May 6 22:29:08 2014'.* >> *Info: Screen [0] resized to geometry [1280x1024] fullscreen [1].* >> *Session: Suspending session at 'Tue May 6 22:29:10 2014'.* >> >> >> And if I open the same session again (on the same screen), it just stays >> up although it reports the same resizing procedure being run: >> >> *Session: Session resumed at 'Tue May 6 22:31:38 2014'.* >> *Info: Screen [0] resized to geometry [1280x1024] fullscreen [1].* >> >> >> Not sure if this is related, but if I press CTRL+ALT+R which is the >> command to switch between auto-resize and viewport mode, the session also >> immediately suspends, and the logs show this: >> >> *Info: Disabled desktop resize mode in agent.* >> *Session: Suspending session at 'Tue May 6 22:35:46 2014'.* >> *Info: Waiting the cleanup timeout to complete.* >> *Session: Session suspended at 'Tue May 6 22:35:46 2014'.* >> >> >> Is there any additional debug information that I could see anywhere, to >> see what code is actually being executed when the session goes into resume? >> >> Jean >> >> >> >

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Re: [X2Go-User] No sound on TCE
by Jean Gottschalk 19 May '14

19 May '14

> Hello, > > Is someone able to help with the below? If you could just point me in the > right direction or suggest some troubleshooting directions, I may be able > to investigate further... > > Jean > On May 7, 2014 7:21 AM, "Jean Gottschalk" <jean(a)gottschalk.us> wrote: > >> Hello, >> >> I have the following situation: >> >> I am running x2goserver 4.0.1.15 with MATE desktop. When connecting to it >> with x2goclient 4.0.2.0 running on an ubuntu laptop, I get proper sound >> being transmitted to the client. >> >> When firing up a thinclient, which seems to be running x2goclient >> 4.0.2.1, there is not sound being transmitted to the client. >> I have run padevchooser on the server, which correctly shows pulseaudio >> as connected to a sink on my thinclient hardware. I've also checked the >> alsa sound mixer on the thinclient, to make sure nothing is muted, and I >> have run "speaker-test" on the thinclient, which produces noise (so >> speakers and all that are working). >> >> Now I'm not sure what to do next? Is there any way (other than perhaps >> doing a network packet capture) to determine whether the server (running >> pulseaudio client) is properly streaming sound to the thinclient (running >> the pulseaudio server) in the scenario where I don't hear sound? >> >> Any other ideas or troubleshooting methods are appreciated. >> >> Thank you! >> >> Jean >> > >

1 0

edubuntu and x2go
by Ngainku Chanceline 18 May '14

18 May '14

hello, yesterday we try to install x2go on edubuntu virtual machine. we made a TCE installation and we try a raspberry client with raspbian and x2goblient with pxe: it load tftp and show us the progrees bar but after a while it shows us Loading. please wait--- and happens nothing more tcpdump shows no more trafic syslog says May 18 09:04:30 ed1404l-virtual-machine dhcpd: DHCPACK on 192.168.12.101 to 00:1f:16:28:f0:f1 via eth0 May 18 09:08:57 ed1404l-virtual-machine atftpd[6257]: atftpd terminating after 300 seconds May 18 09:08:57 ed1404l-virtual-machine atftpd[6257]: Main thread exiting May 18 09:17:01 ed1404l-virtual-machine CRON[8939]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) May 18 09:24:16 ed1404l-virtual-machine cracklib: no dictionary update necessary. with raspbian and x2goclient after login it starts but x2go does not appear and it stay doing nothing. any idea? we have an similar debian installation and it works very well. michel

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Problem compiling x2goclient
by Short, Kermit 16 May '14

16 May '14

Greetings! I'm trying to work through an installation for IGEL again. Apparently I didn't take good notes the first time, so I'm trying to redo my process (I've already found some things I may not have done the first time, even though it was working). Build platform: Ubuntu Workstation LTS 12.04.3, 32-bit (fully updated as of 2014.05.14) *This is required per IGEL I've done the following so far: 1) Download and unpack the source tarball for x2goclient-4.0.2.0. 2) Installed the following prerequisites: build-essential qt4-designer qtcreator qtcreator-doc qt4-demos qt4-doc qt4-dev-tools libqt4-dev git qt-sdk libldap2-dev libssh-dev libxpm-dev libcups2-dev debhelper doxygen man2html-base 3) Run config_linux.sh (sudo /var/tmp/x2goclient-4.0.2.0/config_linux.sh NOTE I received an error at this point: make: *** No rule to make target `distclean'. Stop. Project MESSAGE: if you want to build x2goplugin you should export X2GO_CLIENT_TARGET=plugin Project MESSAGE: building x2goclient with ldap and cups RCC: Error in 'resources.rcc': Cannot find file 'x2goclient_de.qm' RCC: Error in 'resources.rcc': Cannot find file 'x2goclient_da.qm' RCC: Error in 'resources.rcc': Cannot find file 'x2goclient_es.qm' RCC: Error in 'resources.rcc': Cannot find file 'x2goclient_et.qm' RCC: Error in 'resources.rcc': Cannot find file 'x2goclient_fi.qm' RCC: Error in 'resources.rcc': Cannot find file 'x2goclient_fr.qm' RCC: Error in 'resources.rcc': Cannot find file 'x2goclient_nb_no.qm' RCC: Error in 'resources.rcc': Cannot find file 'x2goclient_nl.qm' RCC: Error in 'resources.rcc': Cannot find file 'x2goclient_ru.qm' RCC: Error in 'resources.rcc': Cannot find file 'x2goclient_sv.qm' RCC: Error in 'resources.rcc': Cannot find file 'x2goclient_zh_tw.qm' I didn't think distclean was a big deal, this is a freshly build VM running Ubuntu. I'm not currently set up to run the x2gowebplugin so I ignored the Project MESSAGE. The RCC errors seem to be strictly relegated to Locale stuff, so I'm ignoring them. I proceed to trying to build x2goclient itself: 4) sudo make Things go fine until an error on an ssh related object: g++ -c -pipe -O2 -Wall -W -D_REENTRANT -DQT_WEBKIT -DCFGCLIENT -D__linux__ -DQT_NO_DEBUG -DQT_SVG_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++ -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtNetwork -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtSvg -I/usr/include/qt4 -I. -I. -I. -o sshmasterconnection.o sshmasterconnection.cpp sshmasterconnection.cpp: In member function ‘void SshMasterConnection::checkReverseTunnelConnections()’: sshmasterconnection.cpp:297:73: error: ‘ssh_channel_accept_forward’ was not declared in this scope sshmasterconnection.cpp:308:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] make: *** [sshmasterconnection.o] Error 1 Note in the above prereq install, I installed the libssh-dev package, but it looks to my uneducated eyes like I'm missing an ssh component for this to build against... Any ideas? To preempt the suggestion to build a deb file, IGEL does not support the installation of a deb package (dpkg doesn't exist on the firmware), so I have to have a nearly standalone tree that I can install in a custom partition on the firmware. I have been able to write a script that creates symlinks to some of the objects and libraries in this custom partition, but the binary itself has to build and reside all in one file tree. Thanks for your help!! -- Kermit Short DCS-ISS

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x2go printer howto
by Neal Becker 15 May '14

15 May '14

client and server are both fedora 20. I install cups-x2go on server (and x2goserver-printing). I setup a cups-x2go printer on server on kde environment. On the client I resumed session, with printing enabled (I did not try starting a new session). On server, I can open kde printer settings and try printing a test page. It seems successful. Nothing is printed. How to debug?

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x2gobroker-auth takes nearly 100% CPU
by Michael Wagenknecht 15 May '14

15 May '14

Hello all, is it OK that the process x2gobroker-auth takes nearly 100% of one CPU kernel? Best Regards, Michael

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