x2go-user May 2012

x2go-user@lists.x2go.org

19 participants
18 discussions

Folder sharing does not work with x2goclient
by Emanuele Rocca 27 Nov '14

27 Nov '14

Hi list, While folder sharing works fine using pyhoca-cli, it does not work at all with x2goclient. This is what sshd says on the client side when trying to "share" a folder from the gui: May 8 13:55:43 uranus sshd[23908]: Connection from 127.0.0.1 port 51821 May 8 13:55:43 uranus sshd[23908]: Connection closed by 127.0.0.1 [preauth] mount's output on the server side does not show anything interesting. I am running Ubuntu precise (12.04), both on the client and the server. Do you have any hints on how to debug this further? Installed packages: ii cups-x2go 3.0.0.3-0~54~oneiric1 X2GO printer for CUPS ii python-x2go 0.1.1.9-0-0~612~oneiric1 Python module for X2go client support ii x2goagent 2:3.5.0.11-0~220~oneiric1 X2Go agent ii x2goclient 3.99.0.6-0~144~oneiric1 X2Go Client application (Qt4) ii x2gognomebindings 2.0.1.4-0~53~oneiric1 Description: x2gognomebindings (GNOME mimetypes for X2go) ii x2goserver 3.1.0.0-0~477~oneiric1 X2Go server daemon scripts ii x2goserver-compat 3.1.0.0-0~477~oneiric1 X2Go server daemon scripts (backwards compatitbity to old client versions) ii x2goserver-extensions 3.1.0.0-0~477~oneiric1 X2Go server daemon scripts (extensions) ii x2goserver-fmbindings 3.1.0.0-0~477~oneiric1 Generic (freedesktop-based) file manager bindings for X2Go ii x2goserver-printing 3.1.0.0-0~477~oneiric1 X2Go server daemon scripts (printing) ii x2goserver-pyhoca 3.1.0.0-0~477~oneiric1 X2Go server daemon scripts (add-ons for pyhoca client) ii x2goserver-xsession 3.1.0.0-0~477~oneiric1 X2Go server daemon scripts (Xsession runner) ii pyhoca-cli 0.1.4.2-0~108~oneiric1 A command line X2go client written in Python ii pyhoca-gui 0.1.0.10-0~487~oneiric1 A graphical X2go client written in (wx)Python ii x2goserver-pyhoca 3.1.0.0-0~477~oneiric1 X2Go server daemon scripts (add-ons for pyhoca client) Conf file: [20120503160857309] speed=3 pack=16m-jpeg quality=9 fstunnel=true export="/media:1;" iconvto=UTF-8 iconvfrom=ISO8859-1 useiconv=false fullscreen=false width=1024 multidisp=false display=1 height=768 dpi=96 setdpi=false xinerama=false usekbd=true layout=us type=pc105/us sound=true soundsystem=pulse startsoundsystem=true soundtunnel=true defsndport=true sndport=4713 print=true name=xxx icon=:icons/128x128/x2gosession.png host=host.example.org user=username key= sshport=22 autologin=false krblogin=false rootless=false applications=WWWBROWSER, MAILCLIENT, OFFICE, TERMINAL, gnome-session-fallback command=gnome-session-fallback rdpoptions= rdpserver= xdmcpserver=localhost

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Re: [X2go-User] Mac client 'Can't connect to X-Server
by Neil Hunt 14 Nov '12

14 Nov '12

Paul, Unfortunately as a regular user of the Mac X2go client, this is something I've seen many times. Unfortunately, I haven't found any fix for it. The good news is that it rarely happens if you keep the X11 application open. Always open X11 before starting your X2go session. From there, you can stop/start X2go sessions, even the X2go client itself, however I almost always keep my X11 app running even when it's not being uses and then I don't get the problem you are describing. If I quit X11, especially if it's accidental during an active X2go session, then I end up with the problem you are describing and the only option is to restart the whole computer. But if I keep it open, I go for days or weeks without rebooting. Ultimately, I think we should look to move to the PyHoca gui, but we haven't been able to find any serious python developers to port it to OS X. Neil -------------------------------------------------------------------------------------------- Date: Wed, 6 Jul 2011 12:14:51 -0700 From: Paul Northug <pnorthug(a)gmail.com> To: x2go-user(a)lists.berlios.de Subject: [X2go-User] Mac client 'Can't connect to X-Server' Message-ID: <CAJAeRZy=KmQsVyoELQ4MrTDHZ8g03x8tXJm_hTL5NK50jQ9QEw(a)mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Thank you to the developers for make this excellent software. Many people at my work use x2go's Mac client. We have never been able to figure out how to resolve the 'Can't connect to X-Server' error without random acts (eg. rebooting). We are not sure why it comes up. This is what I do: 1. Start X11.app 2. ssh -X remotehost 3. xterm & So far this works, I get an xterm so there is nothing wrong with X11 4. Start X2Go client 5. Start a session (port 22, dsa authentication, Gnome...) 6. Client gives the error and hangs (Abort and Terminate don't do anything) and I have to close the application. The closest we got to figuring it out is that the X11.app possibly changes it's DISPLAY on restarts and perhaps the x2go client is expecting display 0. Is there any more debugging information that I could get from the client to see what exactly it is doing prior to giving the error message? We have tried some of the suggestions in the forums, such as changing permissions in X11.app (this is necessary), starting it manually before starting the client. We have also done things like messed with firewall settings, made sure hostname doesn't change on our laptops between work and home, deleted preference files, delete XAuthority files, etc. What seems to work is rebooting. Thanks, P?l

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xming 6.9.0.31 keeps crashing
by nigra truo 21 Sep '12

21 Sep '12

Hi, I use x2go a lot on Windows, but have noticed that the xming server keeps crashing from time to time, usually when I seem to have firefox open in the session with lots of tabs. It takes me usually some effort to close the tabs, as it keeps crashing and crashing. Is there a workaround for this? This is with X2go client 3.01-2 on Windows. I know this is an old version of X2go, but when trying the new version, they both fail on Linux and Windows with the error "cannot open X screen" or something. (do I have to upgrade the x2go server too, might that be the problem to be able to use the new client? I depend on x2go and use it long hours every day so breakage is annoying) Thanks, Markus

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x2goplugin
by gregor.ege＠eu.magna.com 31 May '12

31 May '12

Hi x2go user, I got notice of x2go this week and implemented it sucessfully for my needs. But what about the x2goplugin ? Is it still available or just canceled many thanks cheers gregor Decoma Exterior Systems GmbH Geschäftsführer: Andreas Kunz, Yanik Cantieni - Sitz der Gesellschaft: Obertshausen - Registergericht: Offenbach HRB 10475 Diese Nachricht ist ausschliesslich für den oben bezeichneten Adressaten bestimmt und enthält möglicherweise vertrauliche Informationen. Sollten Sie nicht der oben bezeichnete Adressat sein oder diese Nachricht irrtümlich erhalten haben, ersuchen wir Sie, diese Nachricht nicht weiterzugeben, zu kopieren oder im Vertrauen darauf zu handeln, sondern uns unter info(a)eu.decoma.com zu verständigen und diese Nachricht samt aller Anlagen sofort zu löschen. Vielen Dank. This message is intended only for use by the named addressee and may contain privileged and/or confidential information. If you are not the named addressee, you should not disseminate, copy, or take any action in reliance on it. If you have received this message in error, please immediately notify info(a)eu.decoma.com and delete this message and any attachment. Thank you.

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X2Go TCE on USB key with Debian live-build ?
by Charlie BRAVO 22 May '12

22 May '12

Hello to everybody, This is our first post on x2go. Sorry if the question seems stupid or if we are not at the right place. We googled during days without finding a precise answer... We have to use thin clients to connect to x2go-servers. Thus, we looked the "Installation of the X2Go TCE based on Debian" (http://wiki.x2go.org/doku.php/wiki:components:tce) That looks not bad :-) But we cannot use a PXE server. So, we need the "same" thing, but on a CD, or better, on an USB key. We saw on archived posts (for example: http://www.mail-archive.com/x2go-dev@lists.berlios.de/msg02233.html) that this question was discussed, but not considered "making sense". The links which are given there (for example for "apt-get install x2go-rootfs") do not seem any more up to date... And the wiki "X2Go Live" (http://wiki.x2go.org/doku.php/wiki:components:x2golive) seems... empty. For other reasons, we use a little "live-build" (http://live.debian.net/) but we are not experts. Our first question: After runnig "x2gothinclient_update" we have a "X2go TCE chroot" (under /opt/x2gothinclient/chroot/). Is there a simple way to use this directory with live-build to build a binary image? That is, avoiding the "bootstrap" stage and the "chroot" stage, but starting directly with the "binary" stage? Our second (more global) question: It looks like the "X2go TCE chroot" (under /opt/x2gothinclient/chroot/) obtained with "x2gothinclient_create" is built in a similar way what live-build could do (are we wrong?). As said previously (in the archive posts), it seems that the project x2go decided not to maintain both solutions: TCE and live-build. But, *maybe* would-it be possible to maintain both results for a single effort? live-build can build different kinds of images (lb_config -b|--binary-images iso|iso-hybrid|net|tar|hdd) of which "net". Instead of maintaining the "x2gothinclient_create" package, would it not be possible to just maintain the accurate options to be entered to "lb config", "lb build", etc... and the additional "includes" or "modified packages" or "hooks" and to let the user choose between the options "--binary-images" ("hdd" or "net")? Thus both needs could be satisfied just with a single effort ;-) Thank you for your answers. In the rush, we just need a way to "put" the PXE-chroot on a "live" USB key... Best Regards, Charlie --

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x2goclient and HTTP proxy
by Maarten Boekhold 20 May '12

20 May '12

Hi all, After a hiatus of a couple of years, I decided to try x2go again, since NX Client from Nomachine doesn't seem to handle an XFCE desktop very well. I was pleasantly surprised, x2go seems to have improved massively and works just beautifully. One thing I am missing however is the ability to establish a session through an HTTP proxy server (using HTTP CONNECT). NX Client 3.x does do this (but it seems it's not possible in the NX Client 4 beta client). I've done a little bit of research, and it looks like LIBSSH does have some facilities to support a "proxy command": ssh_options_set(my_ssh_session, SSH_OPTION_PROXYCOMMAND, "command"); "command" in this case would be something like 'corkscrew' or 'proxytunnel'. http://www.agroman.net/corkscrew/ http://proxytunnel.sourceforge.net/ What are the chances that this SSH_OPTION_PROXYCOMMAND could be integrated into the x2go client? It looks like x2goclient is built using cygwin, and I believe that both corkscrew as well as proxytunnel can be built on cygwin as well. So I wonder if the following additions to x2goclient are possible: - Add the following GUI options to x2go sessions: - HTTP proxy host: takes hostname/ip of your HTTP proxy - HTTP proxy port: takes port of HTTP proxy - HTTP proxy username : for optional authentication - HTTP proxy password : for optional authentication - I'm not sure if corkscrew supports proxy authentication... - On start of a session, if HTTP proxy host+port is specified, use ssh_options_set() with command corkscrew <proxy host> <proxy port> <remote host> <remote_ip> (I *think* you can harcode %h and %p for the remote host and remote ip...) - Add corkscrew to the x2goclient distribution I believe the licenses of x2goclient and corkscrew are compatible (both GPL2). Interested in your thoughts about this. Rgds, Maarten

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Kubuntu Precise & DBUS problems with x2go. { FORWARD from X2GO-DEV }
by Helmer Teles 18 May '12

18 May '12

Hello ML I've been strugling with kubuntu 12.04 precise & x2go. As reported before kde crashes several times with dbus errors. DBUS is deneing access to x2go remote sessions. I've googled for the error, but can't seem to find the way to solve the problem system wide. As a example, printer-applet crashes if i don't change two rules in /etc/dbus-1/system.d/com.redhat.NewPrinterNotification.conf I've already tried to modify dbus conf to listen on tcp connections instead of only socket. Does anyone have any insight on this subject? regards, -- Helmer Teles eM at il : helmer [DOT] teles [AT] Google mail Web Page: http://hteles.wordpress.com Hello ML, Does anyone has tested Kubuntu 12.04 with x2go stable PPA! I've instaled two testing machines and have been having crashes with kwin. Both machines are running on KVM and don't have the same problem when running inside virt-viewer. Please can anyone share their experiences with kde 4.8.x with other distros ou kubuntu previous versions? regards, -- Helmer Teles eM at il : helmer [DOT] teles [AT] Google mail Web Page: http://hteles.wordpress.com

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Authentication issues
by Inquisitor SHM 17 May '12

17 May '12

I need assistance getting X2Go working. I have Ubuntu 12.04 running x2go server and OSX as the x2go client. I can ssh into ubuntu from mac. I cannot get x2go working - no matter what. The errors messages are non-descript and neither google or the documentation has been any help. I get - (1) The server is unknown. Do you trust the host key? Public key has .... in spite of having the public key in authorized_keys and the server in known_hosts. After responding Yes to the prompt above I get - No public key matchesd Access Denied. Authentication that can continue: publickey, keyboard-interactive. Pressing OK then follows with the username/password prompt. I put in the correct username and password. The system repeats again the same 'The server is unknown message from (1) above. It does not matter whether I allow sshd to use clear passwords or not. I kindly ask for your assistance. That request said, let me say this: I think this project is fantastic and has a lot of promise. However, as long as connectivity between server and client remains more difficult than what it should, and remains badly documented, then the entire project effort is meaningless. The entire project is therefore less than useless. I have some 20 years systems engineering/software development experience and am generally the most technical person in most companies that I work at, which is saying something when there are about 500 technical resources at any point in time. If I get frustrated with setting up simple connectivity then clearly it is beyond the average user - who by the way is your target audience. Again, please help me connect and understand how and why it fails to connect/authenticate. Sincerely, G. Ravenor A Geeks Alter-Ego

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No window decorations for single applications
by Maystar＠web.de 16 May '12

16 May '12

Hey, On the wiki page http://www.x2go.org/doku.php/wiki:development:x2go-qa I found these known issue: "On some servers Qt-applications have no window decorations, reason is currently unknown." I'm running the x2go server on a kubuntu, an openSuse 11.4 and 12.1 machine and confirm this bug for every of these servers! So for me this seems not to be a rare problem. All of the machines come with KDE but on suse I also installed lxde. I really would like to help to solve this bug but I don't know how. If anyone gives me a hint I could give more information about the configurations on the servers. The decorations are missing at every program I tried, this includes pure kde, gtk but also java applications. Best regards Fabian

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Building x2goclient on windows from source?
by Maarten Boekhold 15 May '12

15 May '12

Hi all, I'm trying to figure out how to build the x2goclient from source on Windows from source. I want to try to add a feature to x2goclient but I'm having some trouble figuring out all the build dependencies. Is there any documentation available on this? Maarten

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x2go-user May 2012