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Composite extension
by Ralph Sikau 09 Mar '12

09 Mar '12

Hi, we connect to a gnome session on a x2go host. This gnome session has cairo-dock installed which unfortunately cannot make use of the composite function included in metacity for real transparency. When I start xcompmgr it says "no composite extension". The x2go windows client uses vcxsrv which is supposed to be even opengl capable. Where is the handicap here? Best, Ralph

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Fwd: thinclient image and automounting usb-devices
by brian mullan 09 Mar '12

09 Mar '12

Stefan Not sure if this is of any help but have you heard of or tried USB over IP: http://usbip.sourceforge.net/ here's a guide for doing it with ubuntu: http://www.howtoforge.com/how-to-set-up-a-usb-over-ip-server-and-client-wit… Could the x2go-server or x2go-client machine be configured to use this to solve your thin-client usb mounting problem? Brian

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Composite extension
by Ralph Sikau 09 Mar '12

09 Mar '12

Hi, we connect to a gnome session on a x2go host. This gnome session has cairo-dock installed which unfortunately cannot make use of the composite function included in metacity for real transparency. When I start xcompmgr it says "no composite extension". The x2go windows client uses vcxsrv which is supposed to be even opengl capable. Where is the handicap here? Best, Ralph

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Re: [X2Go-User] install live squeeze usb-hdd with 3.x kernel
by Stefan 09 Mar '12

09 Mar '12

sorry, this is gone to the wrong list ;-) Am Thursday 08 March 2012 schrieb Stefan: > Am Wednesday 07 March 2012 schrieb Ben Armstrong: > > I'm not sure if your response is what the user was looking for, as it > > appeared to be about installing, but there is a possibility that > > 'install' was a red herring and your advice is more along the lines of > > what he was looking for. However ... > > yes, after my mail I was thinking about the same. > > > On 07/03/12 06:40 AM, Stefan wrote: > > > you have to enable the backport-sources in the config: > > Please do not advise users to change variables in the config files. > > Those are not meant to be directly changed. You should always use 'lb > > config' instead. It is sufficient to say: > > > > $ lb config --backports true > > Ok. I got used to edit some configurations direclty - because it seems to > be more quickly. So thanks for clearing that the lb config should be the > preferred way. > > > > _______________________________________________ > X2Go-User mailing list > X2Go-User(a)lists.berlios.de > https://lists.berlios.de/mailman/listinfo/x2go-user

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NX lib path issue prevents Xubuntu 11.10 sessions from starting
by Benjamin Shadwick 09 Mar '12

09 Mar '12

I'm using Xubuntu 11.10 and can no longer login after upgrading to a recent stable version of x2goserver. I tried changing my session to open a Terminal instead of starting an X session, then tried to start the X session from the Terminal prompt, and got the following error message: xscreensaver: error while loading shared libraries: libNX_Xext.so.6: cannot open shared object file: No such file or directory xfce4-session: error while loading shared libraries: libNX_Xext.so.6: cannot open shared object file: No such file or directory My LD_LIBRARY_PATH was set to just /usr/lib/nx/X11/Xinerama but libNX_Xext.so.6 was in /usr/lib/nx/X11 I added /usr/lib/nx/X11 to LD_LIBRARY_PATH, and that seemed to get things working again. Since I am already using a script to set some environment variables in order to get a Xubuntu desktop instead of a plain XFCE one, I just added the LD_LIBRARY_PATH fix to that for now.

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Re: [X2Go-User] install live squeeze usb-hdd with 3.x kernel
by Stefan 08 Mar '12

08 Mar '12

Am Wednesday 07 March 2012 schrieb Ben Armstrong: > I'm not sure if your response is what the user was looking for, as it > appeared to be about installing, but there is a possibility that > 'install' was a red herring and your advice is more along the lines of > what he was looking for. However ... yes, after my mail I was thinking about the same. > On 07/03/12 06:40 AM, Stefan wrote: > > you have to enable the backport-sources in the config: > Please do not advise users to change variables in the config files. > Those are not meant to be directly changed. You should always use 'lb > config' instead. It is sufficient to say: > > $ lb config --backports true Ok. I got used to edit some configurations direclty - because it seems to be more quickly. So thanks for clearing that the lb config should be the preferred way.

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thinclient image and automounting usb-devices
by brian mullan 08 Mar '12

08 Mar '12

Stefan If you can configure your thin-client to boot off of USB ... 1. create a 1 or 2 GB USB stick configured to auto-boot into linux and some locked down user account 2. create the network configuration setup the thin-client will use 3. start x2goclient 4. create a new "session" 5. pre-configure the USB x2goclient with 1 Session, your various 'settings/preferences' like desktop-type, local printing, connection speed etc 6. don't enter any user ID into the USB x2goclient 7. exit the x2go client 8. configure x2goclient to be auto-run at boot 9. pre-configure the USB Linux wireless/ethernet info Shutdown the USB linux and the USB should contain a template you can make copies of. Hand out USB's to students at Registration or leave in the Thin-Clients. I've talked to some USB manufacturers and if you buy in bulk they will even pre-copy/load your USBs for you and in most cases, imprint the USB with a school mascot/banner etc. They above becomes sort of like an x2go client kiosk setup. When the thin-clients boots and network is established the x2go login screen should be presented and they will be able to log into your x2goserver and get a desktop. I've done this and its quite easy. One other benefit is that if the x2goserver at the school is setup right to provide a public IP (with security) the students could take the USB Sticks home and if they have Internet at home and a PC/laptop/netbook etc that can boot from USB then... the student can boot off their USB stick, login to their school x2go server and continue with their desktop & school work as if they'd never left the school. First question is "what if the kid loses the USB"... - anyone finding it would still not have the user ID and password to gain access to the school's x2goserver and the student's desktop. - also, since 1-2 GB USBs are so cheap now they can just be a "throw-away" expense. - Security, you can encrypt the USB, there's no user information or documents etc. ever stored on the USB itself, etc. Just an idea. by the way for 1GB USB's they are now about $2.95 each with Free Logo, 100 Piece Minimum. Brian On 03/07/2012 11:29 AM, Stefan wrote: Hi all, we plan to set up an x2go-server in a school, where people should have access to with laptops throught wlan. The laptops will have dual-boot systems an one of them should be a minimal setup with x2goclient (thinclient-image) and wlan access. It would be nice doing usb-automounting in the image - like the ltsp-thinclient environment does. They should behave thin-client like - only that they can't boot through pxe because of wlan. (For the desktops we still use ltsp - because of features like local apps and automounging ...) So users should not have to open a desktop-environment, starting x2goclient and mount local devices manualy. Are there any common approaches? Is automounting working in the tce of x2go? Thanks for your ideas. stefan

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cups-x2go problem printing multiple copies from windows terminal server. Fix inside ( i guess )
by Helmer Teles 08 Mar '12

08 Mar '12

Hello, ML. I've found a bug when i try to print multiple copies from a Windows Terminal Server to x2go-printer if the document has only one page, it only prints one copy. Strangely this does not happen if the document has more than one page. How to reproduce Open a x2go-session, open Freerdp to a windows terminal server, write a new Word Document with only one page. Now print the document with more than 1 copy. Steps to correct it: I've changed the line in /usr/lib/cups/backend/cups-x2go to: # PS2PDF command my $ps2pdf = "/usr/bin/gs -q -dCompatibilityLevel=1.4 -dNOPAUSE -dBATCH - dSAFER -sDEVICE=pdfwrite -sOutputFile=\"%s.pdf\" -dAutoRotatePages=/PageByPage -dAutoFilterColorImages=false -dColorImageFilter=/FlateEncode - dPDFSETTINGS=/printer -dDoNumCopies -c .setpdfwrite -f \"%s\""; FROM: # PS2PDF command my $ps2pdf = "/usr/bin/gs -q -dCompatibilityLevel=1.4 -dNOPAUSE -dBATCH - dSAFER -sDEVICE=pdfwrite -sOutputFile=\"%s.pdf\" -dAutoRotatePages=/PageByPage -dAutoFilterColorImages=false -dColorImageFilter=/FlateEncode - dPDFSETTINGS=/prepress -c .setpdfwrite -f \"%s\""; -- Helmer Teles eM@il : helmer{DOT}teles[AT] google Email Web Page: http://hteles.wordpress.com

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Re: [X2Go-User] X2Go-User Digest, Vol 19, Issue 5
by brian mullan 08 Mar '12

08 Mar '12

> 2. X2Go release day: x2goserver, nx-libs, x2goclient, > x2gothinclient (Mike Gabriel) > Thanks to the Dev's for the fixes. This update has resolved my ssh problems as well with x2go. Brian

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X2Go release day: x2goserver, nx-libs, x2goclient, x2gothinclient
by Mike Gabriel 07 Mar '12

07 Mar '12

Dear all, The X2Go Project is proud to announce a couple of new X2Go component releases: - x2goserver (3.1.0.1) - nx-libs incl. x2goagent (3.5.0.12) - x2goclient (3.99.1.1) - x2gothinclient (1.0.1.6) All new packages will be available in our stable repositories (Debian, Ubuntu) within the next 24h. The windows and Mac OS versions of x2goclient will probably be available tomorrow, as well. (PING: @Mihai, @Oleksandr). Sources and binary releases will be downloadable under this URL as soon as they are provided by the packagers. http://code.x2go.org/releases/ The new X2Go Server version adds ~/.x2go_logout script support to the server-side of X2Go and fixes the x2goserver-fmbindings Makefile. The NX (redistributed) code tree has received a fix for the main Makefile. Also a patch for building on Mac OS X 10.5 has been included, plus an X2Go related patch by Oleksandr. On top of that, we have fixed installation of libnx-x11 (Debian package) on 64-bit systems with multi-arch support (i.e. Debian wheezy+sid). X2GoClient and X2Go TCE have received some improvements, too. The shutdown button is now fully implemented witin X2GoClient, the x2gothinshutdown package has been dropped. The TCE also received a new and more colourful boot splash. At this point I would like to explicitly thank Mihai Moldovan for investing his time into X2Go Client development on Mac OS X. Mihai has contributed some great patches to the X2Go Client code and has also taken over the building of the Mac OS X binary of X2Go Client (including nx-libs-lite i.e. nxproxy+libxcomp3). The X2Go project--with Mihai on board--is now able to offer the X2Go Client for current Mac OS X versions again. Thanks for that, Mihai!!! light+love, Mike x2goserver (3.1.0.1-0~x2go1) RELEASE; urgency=low * New upstream version (3.1.0.1): - Provide infrastructure for on-logout script calls. - Do only run session cleanup scripts from within x2goruncommand. Dropping them from x2goterminate-session. - Be tolerant against x2go_logout script failures. - Fix Makefile of x2goserver-fmbindings (thanks to Oliver Burger), improve uninstall code in Makefiles. -- Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Wed, 07 Mar 2012 21:05:28 +0100 nx-libs (2:3.5.0.12-0) RELEASE; urgency=low [ Mike Gabriel ] * Update patch: 001_add-main-makefile.full+lite.patch, adapt patch from packaging. Test for Makefiles in subfolders before calling them. Fixes build failure during ,,make distclean'' calls. * Provide temporary workaround for installation on Debian 64bit with multiarch support (via libnx-x11.postinst and .prerm). * Re-introduce proper Xinerama support on non-multiarch systems. [ Mihai Moldovan ] * Add patch: 051_nxcomp_macos105-fdisset.full+lite.patch, work around issue in Mac OS X 10.5 SDK. Pass address of fd_set structs on the stack to the FD_ISSET macro/function, instead of the struct itself. * Update patch: 005_nxcomp_gcc43.full+lite.patch, fix faulty path to nxcomp/Split.cpp. [ Oleksandr Shneyder ] * Add patch: 203_nxagent_disable-rootless-exit.full.patch, add command line argument "-norootlessexit". Usually, nxagent exits after 30 seconds if running in rootless mode and no X-Clients are present. Starting nxagent with option "-norootlessexit" will change this behaviour. -- Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Wed, 07 Mar 2012 20:50:14 +0100 x2goclient (3.99.1.1-0~x2go1) RELEASE; urgency=low [ Oleksandr Shneyder ] * New upstream version (3.99.1.1): - not including <netinet/in.h> on Q_OS_WIN platform. - not updating Xinerama configuration in "fullscreen" mode. - command line argument "--xinerama": use Xinerama by default. - improved support for use in TCE command line argument --thinclient - running without window manager command line argument --haltbt - button to shutdown the thin client - Fix comments in copyright headers. [ Mike Gabriel ] * New upstream version (3.99.1.1): - Update copyright year in about window. Including all translations. - Power button icon: make inner part transparent. Needed for people with a dark GUI theme. - Prettify x2goclient.pro. [ Mihai Moldovan ] * New upstream version (3.99.1.1): - Use the Mac OS X 10.5 SDK instead 10.6 to remain compatible with Leopard. - Add .gitignore file. - The default of a 10 seconds SSH connection timeout is pretty low, especially when using tcp_wrappers with the identd option turned on. Wait for a 60 seconds timeout. - On Mac OS X connect to Xserver via Unix file socket. - Properly set DISPLAY environment variable on Mac OS X. [ Daniel Lindgren ] * New upstream version (3.99.1.1): - Update/improve Swedish translation after testing x2goclient on Windows. -- Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Wed, 07 Mar 2012 20:42:36 +0100 x2gothinclient (1.0.1.6-0~x2go1) RELEASE; urgency=low [ Mike Gabriel ] * New upstream version (1.0.1.6): - Add background image support. - Add new boot splash background image. - New look'n'feel for boot splash menu. * Let x2gothinclient break and replace x2gothinshutdown. * Depend on x2goclient (>= 3.99.1.1). [ Oleksandr Shneyder ] * New upstream version (1.0.1.6): - x2gothinshutdown is removed. - Options --thinclient and --haltbt added to x2gothinclient_sessions. - x2gothinclientd is modified to use x2goclient shutdown button instead of x2gothinshutdown. - gnupg-agent, pinentry-x2go and gpgsm added to "Recommends" section for package x2gothinclient. - Changes in x2gothinclientd, pulseaudio parameter "--exit-idle-time=65535", breaking pulseaudio start command into in to several lines. -- Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Wed, 07 Mar 2012 20:47:20 +0100 -- DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419 GnuPG Key ID 0xB588399B 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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x2go fails after Ubuntu apt-get upgrade
by Greg Rozon 07 Mar '12

07 Mar '12

I just did a package upgrade on my Ubuntu 11.10 system and my previously functional x2goserver is no longer working. When I attempt to connect to the server using x2goclient, the connection looks like it's working correctly (it begins to open the X window) but then immediately closes and displays a "Finished" status with no errors. The tail of /var/log/syslog yields little that I can see: Mar 1 15:41:12 Rozon-Desktop /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: x2goserver-extensions.features called with options: X2GO_FMBINDINGS Mar 1 15:41:12 Rozon-Desktop /usr/share/x2go/x2gofeature.d/x2goserver.features: x2goserver.features called with options: X2GO_FMBINDINGS Mar 1 15:41:12 Rozon-Desktop /usr/share/x2go/x2gofeature.d/x2goserver-gnomebindings.features: x2goserver-gnomebindings.features called with options: X2GO_FMBINDINGS Mar 1 15:41:12 Rozon-Desktop /usr/bin/x2gocmdexitmessage: x2gocmdexitmessage called with options: grozon-50-1330634466_stDgnome-session-fallback_dp32 Mar 1 15:41:12 Rozon-Desktop /usr/bin/x2gocmdexitmessage: command output starts with: Mar 1 15:41:12 Rozon-Desktop /usr/bin/x2goumount-session[10751]: db_deletemount called, session ID: grozon-50-1330634466_stDgnome-session-fallback_dp32, path: /tmp/spool_grozon/grozon-50-1330634466_stDgnome-session-fallback_dp32 Mar 1 15:41:13 Rozon-Desktop /usr/lib/x2go/x2golistsessions_sql[10833]: Purging finished session from X2Go db, session ID: grozon-50-1330634466_stDgnome-session-fallback_dp32 Mar 1 15:41:13 Rozon-Desktop /usr/bin/x2goumount-session[10851]: x2goumount-session has been called with options: grozon-50-1330634466_stDgnome-session-fallback_dp32 Mar 1 15:41:13 Rozon-Desktop /usr/bin/x2goumount-session[10851]: db_getdisplay called, session ID: grozon-50-1330634466_stDgnome-session-fallback_dp32; return value: Mar 1 15:41:13 Rozon-Desktop /usr/bin/x2goumount-session[10851]: db_getmounts called, session ID: grozon-50-1330634466_stDgnome-session-fallback_dp32; return value: Then nothing. Anything else that might be helpful in solving this one? Greg

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Re: [X2Go-User] updated x2go on my ubuntu 11.10 system and it now fails
by brian mullan 06 Mar '12

06 Mar '12

On Mon, Mar 5, 2012 at 7:48 PM, brian mullan <bmullan.mail(a)gmail.com> wrote: > I've had the flu and not been doing much until today when I finally got > back to looking at this problem with ssh & x2go. > > I've found a very good explanation of the error I am receiving after > upgrading my x2go client & servers. > > After entering my password in x2go client (ubuntu 11.10) and click OK I > see... (*sorry for the prev. embedded .PNG crap) !* > The error message displayed to the x2go client user says: > *AUTHENTICATION FAILED - * > > *Access denied. Authentication that can continue: > publickey,keyboard-interactive* > So using google to search I found... > This URL describes the issues with SSH that are involved: > http://fixunix.com/ssh/73976-difference-between-password-keyboard-interacti… > in particular this seems like a very good explanation of the problem... > although I haven't found out how to fix it ?? > > 10-03-2007 04:12 AM #3<http://fixunix.com/ssh/73976-difference-between-password-keyboard-interacti…> > Re: Difference between password and keyboard-interactive > In article <1168327274.938793.197960(a)i15g2000cwa.googlegroups. com> > "Gushi" writes: > >I can't seem to find this anywhere. > > See RFC 4252 (http://www.ietf.org/rfc/rfc4252.txt) which describes (among > other things) the mandatory password method, and RFC 4256 > (http://www.ietf.org/rfc/rfc4256.txt) which describes the optional > keyboard-interactive method. > > >*What's the difference between password auth and keyboard-interactive?* > >They'd seem to me to be the same thing, no? > > Essentially, in password the client sends username+password and gets a > yes/no response from the server, *in keyboard-interactive* the client > sends the username, and then gets prompted (possibly multiple times, > possibly zero times) by the server for additional information, before a > yes/no response is finally sent by the server. > > In the most common usage case, *keyboard-interactive *will prompt exactly > once, for the user's password (well, it will typically re-prompt if the > password is wrong:-), *which to the user looks essentially the same as > password authentication* - the difference is mainly that in the password > case, it is the client that prompts the user, while in > keyboard-interactive, the client just relays the server's prompt (and > relays the response back). > > However *keyboard-interactive* can thus support a variety of mechanisms > besides single fixed password, e.g. challenge-response types where the > server sends some random data, which the user feeds into a hardware token > that generates a response for the user to type in. Being a perfect fit for > PAM that is used on most current Unices, it allows for almost anything that > you can plug into PAM to be used by ssh without any changes to the ssh code. > * > The password method on the other hand is a very bad fit for PAM, which is > why for a while it wasn't possible to combine password and PAM in > OpenSSH's sshd.* In current versions sshd "fakes" the interaction towards > PAM, by internally supplying the password that it has already received when > PAM tries to prompt the user for it. > > --Per Hedeland > per(a)hedeland.org > > > > >

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Problem with X2GO session
by Piotr Mozdzynski 05 Mar '12

05 Mar '12

Hello. I am new to this list , sorry for starting from issues.. we are facing problems with X2go , it crashes X2GO session when we open the Office 2007 "quick access button" This does not occur on direct sessions , only when connected via X2GO. We found this article : http://www.codeweavers.com/support/tickets/browse/?ticket_id=845080; We disabled the registry in Wine , this helped and Office2007 is not crashing , but the buttons are missing and we cannot see hi-lighted text in MS-Word/Excel , several things are missing. Only what I can attach here is a line from syslog (X2go Server) : kernel: [84085.656572] x2goagent[16641]: segfault at 7f0b9dd61ff4 ip 00000000004d3650 sp 00007fff09b8aff8 error 4 in nxagent[400000+4fa000] Anyone had simmilar problems ? I remember before X2go was also crashing on some applications , but after few updates it doesn't anymore. Could not find anything more , any help to resolve this much appreciated. regards Piotr

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x2go on Android with Ubuntu Port
by Mirco Rohloff 01 Mar '12

01 Mar '12

Hello, maybe this could be a way to use an Android Tablet with X2go Client in future http://www.golem.de/news/hands-on-ubuntu-fuer-android-der-linux-desktop-auf… Regards Mirco

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Changing X2Go SSH configuration
by Ivan Hernandez 01 Mar '12

01 Mar '12

Hi list, I have been working with x2go to replace my old freenx/PXE Setup. As I use low end thinclients the cpu used for encryption is not that much powerful so I compiled hpn-ssh and made it work with the none cipher. On tests with scp it made a big difference making a file tranfer to go from 58%cpu and 8.5Mb/sec to 33%cpu and 11.6Mb/sec. So now I have to find a way to tell x2go client to use that ssh client instead of the default one, and with my options. But instead I see fixed options that I can't change like: ssh -x -a -oClearAllForwardings=yes -oServerAliveInterval=300 -oCipher=blowfish So... how can I change that?? Thanks in advance Ivan

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Call logout script
by senrabdet＠aol.com 01 Mar '12

01 Mar '12

Hi All: Is there a way to call a logout script (i.e., one that is specific to each user upon ending a session)? In Ubuntu Server 10.4 we've tried various things including .bash_logout and /etc/gdm/PostSession/Default either performing a command or calling .bash_logout. The "/etc/gdm/PostSession/Default" works if we log in directly, so assume this has something to do with xsession(?) and hope there is a way in an x2go session where when the user logs out, a script gets called in the background. Thanks!

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PyHoca-Gui in Windows 7 - Not working
by Danny Bélisle 01 Mar '12

01 Mar '12

Hi ! I try to run PyHoca-Gui in Windows7 but no chance right now, maybe you known what this trouble can be ? >From pyhoca-gui.exe.log: Traceback (most recent call last): File "pyhoca-gui", line 50, in <module> File "x2go\__init__.pyo", line 168, in <module> File "x2go\guardian.pyo", line 34, in <module> File "x2go\cleanup.pyo", line 35, in <module> File "x2go\xserver.pyo", line 30, in <module> File "wmi.pyo", line 157, in <module> File "win32com\client\__init__.pyo", line 72, in GetObject File "win32com\client\__init__.pyo", line 87, in Moniker pywintypes.com_error: (-2147024882, 'M\xe9moire insuffisante pour cette op\xe9ration.', None, None) Thanks !

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Re: [X2Go-User] X2goserver on Ubuntu 10.04.4 server...can't login.
by christoffer krakou 27 Feb '12

27 Feb '12

I'm experiencing this error as well. i'll attach a log file from one of my login attempts. The attempt was without sound enabled, though. When sound is enabled, it seems that Pulseaudio gets stuck in a loop of some sort, repeating: Feb 27 08:02:07 fleten-01 pulseaudio[29396]: [pulseaudio] main.c: User-configured server at localhost:30002, refusing to start/autospawn. about once every three seconds. I havent tried to replicate this fully, though. EDIT: I accidently cross-sent to the dev list. My sincerest apologies :( On 02/24/2012 09:07 PM, Mike Gabriel wrote: >> >> “Loop: >> PANIC! The remote NX proxy closed the connection. >> >> Loop: >> PANIC! Failure negotiating the session in stage '7'. >> >> Loop: >> PANIC! Wrong version or invalid session authentication cookie.” >> >> I try to >> uninstall and reinstalling several time, but no success. > >> I installed >> from: >> >> deb >> http://ppa.launchpad.net/x2go/ppa/ubuntu lucid main > > I can only report that I have no problems with Ubuntu 10.04.4. Could you > try with pyhoca-gui as X2Go client instead? Both server and pyhoca-gui > as client have debug capabilities. Switch them on and return to the list > with more debug output. > http://wiki.x2go.org/wiki:development:debugging > > Thanks, > Mike -- Venlig Hilsen / Best Regards Christoffer Krakou Fleten.net APS

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X2goserver on Ubuntu 10.04.4 server...can't login.
by James Bond 27 Feb '12

27 Feb '12

Hi ! I try x2go on different computer (Ubuntu 11.10 desktop, Debian Squeeze, Debian testing) and all works flawless. But on one server, Ubuntu 10.04.4, I always have this error on the windows client: “The remote proxy closed the connection while negotiating the session. This…” The error in the log: “Loop: PANIC! The remote NX proxy closed the connection. Loop: PANIC! Failure negotiating the session in stage '7'. Loop: PANIC! Wrong version or invalid session authentication cookie.” I try to uninstall and reinstalling several time, but no success. I installed from: deb http://ppa.launchpad.net/x2go/ppa/ubuntu lucid main Thanks for help ! Danny Bélisle

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x2gothinclient w/o pxe
by Jonathan Brown 24 Feb '12

24 Feb '12

Hi all, A cursory reading of the online lit I found relating to x2gothinclient seems to require that the stations all pxeboot... I don't want thinclients that pxeboot.. what I need is a minimal OS that is setup to autologin to X and then pyhoca-cli to the x2go-server... can the x2gothinclient packages do this say on a minimal debian install for the thinclient.. ? Since I did not see this capability, I already built from scratch a minimal Debian 6 that does an autologin into X using gdm/matchbox wm, and then created a script that force loops a username/pw graphical dialog using yad (zenity fork)... suffice it to say this works well... but I'm thinking if x2gothinclient already had the capability to do this then I did it all for nought.. except it was definitely a good exercise... The steps and scripts that I did do make this pxe-less x2g0 thin-client/kiosk follow ... I'm sure this can be quite improved... actually the main thing I'd like to improve is to have the matchbox wm/X on the local thin client be aware when there is no activity in the x2go session, and if no activity, then kill or suspend the pyhoca-cli session, thus going back to the yad login prompt, but I haven't found a way to do this (normal logout of the x2go session of course works fine and brings you back to the yad login prompt)... I think the problem is that matchbox wm/X always thinks there is activity when the x2go session is logged in/active, even when there is no activity in the x2go session itself... Any thoughts on any of the above would be appreciated! Steps/scripts etc for x2g0 thin-client/kiosk: OK so I pretty much used the guide from: http://www.alandmoore.com/blog/2011/11/05/creating-a-kiosk-with-linux-and-x… and went from there... After initial Debian squeeze install with only ssh server: Add x2go sources and install pyhoca-cli apt-get install xorg apt-get install gdm --no-install-recommends apt-get install xautolock feh wget http://archive.ualinux.com/ubuntu/main/lucid/yad_0.15.0-1~webupd8~lucid_i38… dpkg -i yad_0.15.0-1~webupd8~lucid_i386.deb (the above is an ubuntu lucid yad deb package but it worked so I didn't ask any further questions :) ... there might be a better yad package for squeeze but I could not find one) adduser kiosk (or whatever) cp -r /home/kiosk /opt/; cd /opt/kiosk/; chmod -R a+r .; touch .xprofile chmod a+x .xprofile my .xprofile: root@lxtrms-thinclient-colodesk:~# cat /home/sagotech/.xprofile xset s off xset -dpms matchbox-window-manager & eval `cat /home/sagotech/.fehbg` & xautolock -secure -time 10 -locker /usr/local/bin/suspend_pyhoca-cli.sh & while true; do rsync -qr --delete --exclude='.Xauthority' /opt/sagotech/ $HOME/ exec /home/sagotech/start_pyhoca.sh done suffice it to say xautolock does not detect non-activity in an x2go session so the suspend_pyhoca-cli.sh never ran: root@lxtrms-thinclient-colodesk:~# cat /usr/local/bin/suspend_pyhoca-cli.sh #!/bin/bash pyhoca-cli -S (for background behind the yad login prompt): root@lxtrms-thinclient-colodesk:~# cat /home/sagotech/.fehbg feh --bg-scale '/usr/share/wallpaper/custom-bk-2.jpg' The script that brings up the yad login prompt loop called from .xprofile follows... so we have this loop inside the loop of the .xprofile script... not sure if this necessary or a good thing etc. root@lxtrms-thinclient-colodesk:~# cat /home/sagotech/start_pyhoca.sh #!/bin/bash while true; do frmdata=$(yad --center --undecorated --image=/usr/share/wallpaper/sago-header-mod.jpg --image-on-top --button="gtk-ok:0" --title "Login to Sago Linux Terminal Server" --form --field="AD username" --field="Password:H") frmusername=$(echo $frmdata | awk 'BEGIN {FS="|" } { print $1 }') frmpassword=$(echo $frmdata | awk 'BEGIN {FS="|" } { print $2 }') pyhoca-cli --server X.X.X.X -u $frmusername --password $frmpassword -c startkde --sound none --kbd-layout us --kbd-type pc105/us -g fullscreen --add-to-known-hosts done The above basically gives you a login prompt and forces you to enter a login AND password and the password is hidden when you type it it puts a nice header image at the top of the prompt.. it only gives an OK button (no cancel)... then passes off the username/pw to pyhoca-cli So yeah I would like to improve this so that inactive x2go sessions get suspended and go back to the yad login prompt... perhaps there is a pyhoca-cli switch that does this that I'm not aware of... But even without that feature this works real nice as a non-pxe x2go thin-client station. Anyway this is all probably very messy and amateurish, but I am not exactly a programmer or very proficient bash scripter so.. :) Also I might be missing a few steps and if any of the above does not make sense please advise and I'll try to see if I missed something in the steps given above... Any thoughts on any of the above would be appreciated! -- *"It is only when each individual has achieved inner peace that we will see lasting outer peace in the world" *

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X2Go TCE with new splash
by Mike Gabriel 23 Feb '12

23 Feb '12

Hi all, I have added a much nicer boot splash to the X2Go Thin Client Environment. I also added background support for X2Go Client withint the X2Go TCE. (X2Go Client has had the --background option for a long time already, now it is being used within the TCE by default). You have to build your thinclient chroot from scratch (x2gothinclient_create) and run x2gothinclient_preptftpd again. Backup /srv/tftp and /opt/x2gothinclient before doing this. Happy testing, Mike -- DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419 GnuPG Key ID 0xB588399B 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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Feature request: Import/export of session profiles
by christoffer krakou 23 Feb '12

23 Feb '12

Hello all I'm employed in a small consultancy company, primarily oriented towards privat schools and their IT needs. When we contact a school, we would like to give them a login to a hosted server via x2go, so they can have a taste of the desktop without a big commitment. Try before you buy, if you will The thing is, Schoolboard members, who decide on this, are somewhat hesitant to read through a guide on how to type in the relevant information themselves. It would be easier for them if they could import a session file that we sent along, using the GUI (i think you can already do this from command line. Not sure though) Also, being able to import and export in general just seems like a nice thing to have. How difficult would it be to implement? I have zero C++ skills myself, so sadly i can only help in the testing of this -- Venlig Hilsen / Best Regards Christoffer Krakou Fleten.net APS

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X2Go release day: nx-libs, x2goserver, x2goclient, x2gognomebindings, x2golxdebindings, x2godesktopsharing
by Mike Gabriel 22 Feb '12

22 Feb '12

Dear all, The X2Go Project it proud to announce a couple of new X2Go component releases: - x2goserver (3.1.0.0) - x2goclient (3.99.1.0) - nx-libs incl. x2goagent (3.5.0.11) - x2gognomebindings (2.0.1.4) - x2golxdebindings (1.0.1.2) - x2godesktopsharing (3.0.1.4) All new packages will be available in our stable repositories (Debian, Ubuntu) within the next 24h. The windows version of x2goclient will probably be available today, as well. With X2Go Server and X2Go Client we introduce a slightly changed session handshake when resuming an already running session. Older clients will be fully compatible with newer servers (and vice versa). The fix addresses a session resume failure that occurred every once in a while (quite rare, but annoying). For the code change please refer to the commits in X2Go Git addressing this: X2Go Server... http://code.x2go.org/gitweb?p=x2goserver.git;a=commitdiff;h=63556d25c3a86f1… X2Go Client... http://code.x2go.org/gitweb?p=x2goclient.git;a=commitdiff;h=3f4eab56698f439… Python X2Go... (though not released today, still mentioned here) http://code.x2go.org/gitweb?p=python-x2go.git;a=commitdiff;h=37cbc1fa5f7787… People upgrading x2goserver and running PostgreSQL as session database backend, make sure to read the README.upgrade-pgsql-database thorougly: http://code.x2go.org/gitweb?p=x2goserver.git;a=blob;f=x2goserver/doc/README… Below, you can see the corresponding changelog entries for the new releases. One aspect we are really proud of is the number of people who have contributed to this release set. Thanks to all people contributing to X2Go. light+love, Mike X2GOSERVER ========== x2goserver (3.1.0.0-0~x2go1) RELEASE; urgency=low [ Oleksandr Shneyder ] * New upstream version (3.1.0.0): - remove ports used by X2Go session from database after session was finished if postgres backend is used. - before resuming X2Go session check if reserved ports still available in other case find new free ports, save them in database and send to x2goclient - run netstat -tl --all to find free ports for graphic, sound and sshfs tunnels in x2gostartagent and x2goresume-session [ Milan Knížek ] * New upstream version (3.1.0.0): - Fix removal of desktop link on x2goumount-session if local folder of a Windows client gets unmounted. - Remove redundant -S option from x2goagent start-up command line. - Use -f $XAUTHORITY with xauth calls. [ Sören Plönnigs ] * New upstream version (3.1.0.0): - Only run kdialog/zenity from x2goumount-session if either of them exists in the system's $PATH. [ Jan Engelhardt ] * New upstream version (3.1.0.0): - Use /cgi-bin/man/ path in web'ified man pages. - Use ,,${MAKE}'' instead of ,,make'' in Makefile. [ Mike Gabriel ] * New upstream version (3.1.0.0): - Provide new package x2goserver-fmbindings. Derived from a package draft provided by Milan Knížek (Thanks!). - Do not create desktop icons for rootless (i.e. non-desktop) sessions. - Allow other $XAUTHORITY values than the default ($HOME/.Xauthority). - For x2gomountdirs / x2goumount-session allow other TMP paths than /tmp. Use ENV{'TMP'} instead, unless it is empty. Then use /tmp. - Place quotations where appropriate into shell scripts. - Fix call to x2goterminate-desktopsharing in x2goruncommand. - Tolerate user names containing "-" characters (SQLite DB backend). - Make sure x2gocleansessions close _all_ open file handles after forking as a daemon. - Add copyright header for x2gofm script. - Add man page for x2gogetservers script. - Add man page for x2gofm wrapper script. - Update date and release version in man pages. * Let x2goserver package suggest x2goserver-fmbindings. * Add package upgrade warning for installation using PostgreSQL. The upgrade warning refers to README.upgrade-pgsql-database. * x2goserver-fmbindings does not have to depend on ${shlibs:Depends}. -- Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Wed, 22 Feb 2012 14:37:34 +0100 X2GOCLIENT ========== x2goclient (3.99.1.0-0~x2go1) RELEASE; urgency=low [ Mike Gabriel ] * New upstream version (3.99.1.0): - Update German translation file (thanks to Stefan Baur). - Build .qm translation files on the fly during build. - Fix for zh_TW translation: add qt_zh_TW.qm file from Qt4.8. - Add language property to the French translation file. - Update qt_<LANG>.qm files from Qt4.8 (as in current Debian sid). - Rename x2goclient_nb.ts to x2goclient_nb_no.ts. - Update all translation files (lupdate), translate unfinished translation tags in x2goclient_de.ts. - Provide empty translation file x2goclient_en.ts. - Fix misspelled word ,,Authentification'' -> ,,Authentication''. - Fix misspelled word ,,recieved'' -> ,,received''. - Update date and release version in man page. [ Mihai Moldovan ] * New upstream version (3.99.1.0): - Mac OS patch: Raise the stack space to 2MB for secondary threads. It previously used the 512KB system default. [ Daniel Lindgren ] * New upstream version (3.99.1.0): - Add Swedish translation file. - Fine-tune Swedish translation file. [ Terje Andersen ] * New upstream version (3.99.1.0): - Add Norwegian (Bokmal) translation. Qt4 lacks Norwegian/Bokmal support, so some of the widgets may stay in English. - Fine-tune/fix Norwegian (Bokmal) translation. [ Jan Engelhardt ] * New upstream version (3.99.1.0): - Use /cgi-bin/man/ path in web'ified man pages. - Use ,,${MAKE}'' instead of ,,make'' in Makefile. - Include <netinet/in.h> in sshprocess.h to fix missing struct sockaddr_in. [ Oleksandr Shneyder ] * New upstream version (3.99.1.0): - Get new ports from x2goresume-session if reserved ports are busy - Fix segmentation fault by failed SSH connection to X2Go server -- Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Wed, 22 Feb 2012 14:49:49 +0100 NX-LIBS ======= nx-libs (2:3.5.0.11-0) RELEASE; urgency=low [ Mike Gabriel ] * Use ,,$(MAKE) -C'' in main Makefile for calling Makefiles in subdirectories, make build stanza work for nx-libs-full and nx-libs-lite. * Do not install libXinerama directly into /usr/lib/nx. Recommended method is installing to /usr/lib/nx/Xinerama, so that you can enable/disable usage of the Xinerama extension. * Update patch: 001_add-main-makefile.full+lite.patch, use curly braces for macros. * Enable parallel build for Debian package. * Merge honor-ac-dirs.patch from Jan Engelhardt (OpenSUSE) with already existing Makefile patches (012_nxcomp..., 013_nxcompext_..., 014_nxcompshad_...). * Rename patches 030_nx-X11_... and 031_nx-X11_..., the tarball roll script currently requires ,,full'' or ,,full+lite'' in the file name. * Make patch headers DEP5 compliant (030_nx-X11_... and 031_nx-X11_...). * Update patch: 001_add-main-makefile.full+lite.patch, fix missing $(CONFIGURE) variable. * Update patches: 012_nxcomp..., 013_nxcompext_..., 014_nxcompshad_.... Also make use of $(LIBFULL) in Makefile.in's install and uninstall stanzas. Inspired by Jan Engelhardt's so-version.diff patch. However, the version name change requested in that patch has been rejected for NX (redistributed). * Apply patches for the Debian package as the last patches in the series. * Fix faulty patch name suffix (has to be .patch, not .diff). * Fix Xinerama support in Debian package libnx-x11 when NX gets built with patch 600_nx-X11+nxcompext+nxcompshad_unique-libnames.full.patch. Still on the todo list: fix the nx-X11 installation via Makefile. * Fine-tune symlinking of libXinerama. [ Jan Engelhardt ] * Update patch: 001_add-main-makefile.full+lite.patch, allow passing of configure args. * Add patch: 030_nx-X11_configure-args.diff. Allow passing of configure args. * Add patch: 031_nx-X11_parallel-make.diff, enable parallel make. * Add patch: 301_nx-X11_use-shared-libs.full.diff, use shared libraries from distribution rather then libs included in source tree. * Add patch: 032_nx-X11_no-x11r6-project-root. We must not overlap with any existing files, therefore, both /usr/X11R6 and /usr are excluded possibilities for ProjectRoot. Use %_libexecdir/somename, since that is still allowed by FHS. * Add patch 600_nx-X11+nxcompext+nxcompshad_unique-libnames.full.patch, use unique library names for nx-X11 based X11 libraries. -- Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Wed, 22 Feb 2012 14:41:07 +0100 X2GOGNOMEBINDINGS ================= x2gognomebindings (2.0.1.4-0~x2go1) RELEASE; urgency=low * New upstream version (2.0.1.4): - Apply implicit.diff patch from Jan Engelhardt (OpenSUSE). - Add x2gofeature support (feature provided: X2GO_GNOMEBINDINGS). -- Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Wed, 22 Feb 2012 14:55:40 +0100 X2GOLXDEBINDINGS ================ x2golxdebindings (1.0.1.2-0~x2go1) RELEASE; urgency=low * New upstream version (1.0.1.2): - Continue development... - Add x2gofeature support (feature provided: X2GO_LXDEBINDINGS). -- Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Wed, 22 Feb 2012 14:53:41 +0100 X2GODESKTOPSHARING ================== x2godesktopsharing (3.0.1.4-0~x2go1) RELEASE; urgency=low * New upstream version (3.0.1.4): - Always use /tmp for lock and session sharing socket (Fixes user individual temp dirs in Debian Edu / Skolelinux). - Pass username of user who requests desktop sharing to x2gostartagent. * Depend on x2goserver (>=3.0.99.9). -- Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Wed, 22 Feb 2012 15:00:54 +0100 -- DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419 GnuPG Key ID 0xB588399B 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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FW: Blank x2go client screen
by Michael McFarlane 21 Feb '12

21 Feb '12

Hi, I have been trying to get X2go working for over a month now without success. The last two requests for help on this list have not been answered. Do you folks recommend that I move on to another solution or continue to wait? I have used NX on Fedora and was very pleased, so I would like to stick with an NX protocol. I am now on Ubuntu and NX is no longer active while X2go is (active doesn't mean much though if it doesn't work). Recommendations? Michael From: Michael McFarlane [mailto:michael@bizsolver.com] Sent: February-06-12 8:18 PM To: 'x2go-user(a)lists.berlios.de' Subject: RE: [X2go-User] Blank x2go client screen Installed client version 3.99.0.5 on Win7. Installed GNOME on server. x2go loads some random background and then hangs with "X2Go - 54 Connection to the remote server was shutdown." NXPROXY - Version 3.4.0 Copyright (C) 2001, 2007 NoMachine. See http://www.nomachine.com/ for more information. Info: Proxy running in client mode with pid '8068'. Session: Starting session at 'Mon Feb 6 20:16:44 2012'. Info: Connecting to remote host 'localhost:31001'. Info: Connection to remote proxy 'localhost:31001' established. Warning: Connected to remote version 3.5.0 with local version 3.4.0. Warning: Consider checking http://www.nomachine.com/ for updates. Info: Connection with remote proxy completed. Warning: Unrecognized session type 'unix-kde-depth_32'. Assuming agent session. Warning: Failed to read data from the X auth command. Warning: Generated a fake cookie for X authentication. Info: Using LAN link parameters 1536/24/1/0. Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_32'. Info: Not using NX delta compression. Info: Not using ZLIB data compression. Info: Not using ZLIB stream compression. Info: Not using a persistent cache. Info: Forwarding X11 connections to display 'localhost:0'. Session: Session started at 'Mon Feb 6 20:16:45 2012'. Info: Established X server connection. Info: Using shared memory parameters 0/0K. Warning: No data received from remote proxy within 32 seconds. From: x2go-user-bounces(a)lists.berlios.de [mailto:x2go-user-bounces@lists.berlios.de] On Behalf Of Michael McFarlane Sent: January-21-12 2:54 PM To: x2go-user(a)lists.berlios.de Cc: 'John Williams' Subject: Re: [X2go-User] Blank x2go client screen What version of Windows client are you using? [Michael] : version 3.99.0.4 What is KFCE? If you selected "GNOME" in the client, how can it know to start KFCE? [Michael] I hadn't thought about that. I thought it knew from your login profile which DE you used. Did you mean XFCE? [Michael] Sorry, XFCE yes I still use the 3.01-13 client, since all the newer ones have various problems. But even with those problems, I can still connect with the newer versions. I just tested 3.99.0.4, and I could connect (but it still have problems, most notably it freezes when trying to play most youtube videos). Anyway, I use XFCE, and I choose "Custom" in the client, and give it the command "/usr/bin/startxfce4" and it gives me almost the same startup messages as you posted, but it does connect and allow me to use the desktop normally (except all the clients have a bug where it sets the Windows window size too small when you choose a custom resolution, say 800x600, the windows client sets the outer dimensions of the window to 800x600 but of course the windows title bar takes up 25-30 pixels, so the window ends up being too small to display an 800x600 desktop). [Michael] Tried that, no change I wonder why the client does not have XFCE as an option. [Michael] That would be nice

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updated x2go on my ubuntu 11.10 system and it now fails
by brian mullan 21 Feb '12

21 Feb '12

Mike PyHoca was also updated and now it won't load and gives me a message: *pyhoca-gui[9111] (PyHoca-GUI) WARN: the current release of PyHoca-GUI does not support client configuration * It did work before I updated this week. To update I used the Ubuntu repository info from the x2go-wiki: http://wiki.x2go.org/wiki:x2go-repository-ubuntu $ sudo add-apt-repository ppa:x2go/stable $ sudo apt-get update The x2goclient version is *3.99.0.6-0-144-oneiric* As I'd mentioned my laptop hasn't been updated and it still connects fine with both x2goclient & pyhoca to the same server AND on my desktop which was updated I CAN successfully connect to the server using just SSH. I tried to find some troubleshooting guide on the wiki that would at least point to where log files might be but couldn't find anything. If there are some troubleshooting steps posted somewhere for x2go I'll use them to see if I can figure out what's going on. thanks. I have seen doing google searches that there are several posts in the past of people using x2go that are posting the same error message. Never saw anyone post an answer to those inquiries suggesting how or if they fixed it. Here are some of the other people that have posted the same error message with their x2go (although not all are ubuntu based) From the dates on these posts though I don't think they were using the same version of x2go ?? http://comments.gmane.org/gmane.linux.terminal-server.x2go.user/301 I have already tried the same steps Paul van der Vlis tried in the above post dated in November 2011. - purging x2goclient from system & reinstalling - tried connecting to a different x2goserver and it did not succeed (whereas Paul's did) I *can* reach both of my x2go servers with ssh from this client and I can reach BOTH of them from my laptop with the older x2goclient and pyhoca. Here is another post of the same error. https://lists.berlios.de/pipermail/x2go-user/2011-September/000364.html thanks for any info or hints to troubleshoot this! I'll cc Paul on this to see if he ever uncovered the cause as his post was a couple months ago. Brian

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