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x2goclient authentication error!
by Paul Clark 20 Dec '10

20 Dec '10

Hi All, hoping for some pointers here in getting x2go working. Two problems below - related or not? -------------------- Problem 1) Mac OS X client won't connect to server: Dialogue error message is: ''Can't connect to X-Server Please check your settings". Checking /var/log/system.log on the client machine (Mac OS X 10.6.4) it shows: Dec 18 17:23:11 Paul-Clarks-MacBook-Pro [0x0-0x18b98b8].x2goclient[56024]: Can't load translator (:/x2goclient_en_au) ! Dec 18 17:23:11 Paul-Clarks-MacBook-Pro [0x0-0x18b98b8].x2goclient[56024]: Can't load translator (:/qt_en_AU) ! Dec 18 17:23:21 Paul-Clarks-MacBook-Pro org.x.privileged_startx[56034]: font_cache: Scanning system font directories to generate X11 font caches Dec 18 17:23:21 Paul-Clarks-MacBook-Pro defaults[56052]: \nThe domain/default pair of (org.x.X11, dpi) does not exist Nothing is showing in /var/log/auth.log on the server around these times. Any ideas as to what the fix is? --------------------- Problem 2) Linux client on server won't connect to localhost . Is this allowed? I attempted this to try to resolve problem 1! I get this error message: "The remote proxy closed the connection while negotiating the session. This may be due to the wrong authentication credentials passed to the server." And the log info: $ cat .x2go/C-paul-51-1292666024_stDGNOME_dp24/session.log NXAGENT - Version 3.4.0 Copyright (C) 2001, 2007 NoMachine. See http://www.nomachine.com/ for more information. Info: Agent running with pid '9734'. Session: Starting session at 'Sat Dec 18 17:53:44 2010'. Info: Proxy running in server mode with pid '9734'. Info: Waiting for connection from 'localhost' on port '30001'. Info: Accepted connection from '127.0.0.1'. Error: The remote NX proxy closed the connection. Error: Failure negotiating the session in stage '7'. Error: Aborting session with 'X2goagent: Unable to open display 'nx/nx,options=/home/paul/.x2go/C-paul-51-1292666024_stDGNOME_dp24/options:51''. Session: Aborting session at 'Sat Dec 18 17:53:44 2010'. Session: Session aborted at 'Sat Dec 18 17:53:44 2010'. $ cat .x2go/S-paul-51-1292666024_stDGNOME_dp24/sessions 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. Is it even possible to run the x2goclient on the server? I'm attempted all this through a remote NoMachine NX desktop session, as the server is far away! (So, I do have NoMachine NX working fine. Server is xubuntu-64bit with ubuntu 10.10) I followed the directions here to setup x2go on the server: http://wiki.x2go.org/adding_the_x2go_repository_debian http://wiki.x2go.org/installing_x2goclient_ubuntu http://wiki.x2go.org/installing_x2goserver-home_ubuntu I also had to install "sqlite3", which I did with the synaptic package manager. (I'm guessing SQLIGHT3 is a mis-spelling in the instructions?) Thanks for any help. :^) Cheers, Paul. ------------------------------- PS: I tried this after reading some post, but no joy: Changed to > $ cat /usr/bin/x2goagent #!/bin/bash -e X2GO_LIBS=/usr/lib/x2go LD_LIBRARY_PATH=/usr/lib/x2go exec /usr/lib/x2go/x2goagent $@ From original> $ cat /usr/bin/x2goagent.org -e #!/bin/bash X2GO_LIBS=/usr/lib/x2go LD_LIBRARY_PATH=/usr/lib/x2go exec /usr/lib/x2go/x2goagent $@

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Bug report: Session gets stuck after X server crash on client
by Robin Green 15 Dec '10

15 Dec '10

Today my X server on my client machine crashed for an unknown reason, and after that I was unable to reconnect to the X2go session that I had been trying to reconnect to at the time of the crash. Until, that is, I spotted an errant ssh process and killed it. After that, I could reconnect again. Conclusion: x2goclient should always ensure that its child ssh processes will die as soon as it is killed. If the git repo appears as promised, I might fix this myself. Regards, -- Robin

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Re: [X2go-dev] x2go with likewise-open (ldap) questions
by Neil W. Hunt 15 Dec '10

15 Dec '10

I am actually struggling with the exact scenario as Ivan is involved with here. Unfortunately, I'm not quite to where you are yet, so according to you more troubles loom on the horizon re: audio. We are trying to use x2go with Likewise Open connected to our corporate Active Directory and based upon your suggestion here, I've changed the id of the local group x2gousers to my LDAP group ID for x2gousers group in our corporate groups, in /etc/group and now my users in my LDAP group are able to authenticate successfully. However, when connecting as an LDAP user via Likewise, I only get a blank/black screen upon session start. The session is active and shows as being connected (I see the user listed when I run "who"), but I can't do or see anything in that user's x2go session window. Whereas when I use a local user, it brings me right to a GNOME desktop and I can use it as normal with full audio. If you can help me figure this out, I can move onto the next issue which will be getting audio for Likewise LDAP users, which I see is where Ivan is stuck now as well. If we can get these last two issues resolved, we intend to roll this out on a much larger scale at our organization as well as demo it to a much larger audience at our parent company. Thanks, Neil This e-mail and any attachments are for the intended recipient(s) only and may contain proprietary, confidential material. If you are not the intended recipient, (even if the email address above is yours) do not use, retain, copy or disclose any part of this communication or any attachment as it is strictly prohibited and may be unlawful. If you believe that you have received this e-mail in error, please notify the sender immediately and permanently delete. This email may be a personal communication from the sender and as such does not represent the views of the company.

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X2Go Load balancing and Windows client
by Bas Tichelaar 15 Dec '10

15 Dec '10

Hi all, We would like to use X2Go in an environment with mixed clients (Windows and Linux), but we definitely need to use load balancing. Is there a way to do this? Like some sort of server based load balancing? Regards, Bas Tichelaar

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firefox plugin --verbose output?
by Clark Johnson 14 Dec '10

14 Dec '10

Hello: Our efforts to use the Firefox plugin have not been successful. Our web-site installs the plugin but only displays a blank (white) box. Does the plug-in have a switch that enables verbose output? We need some method to determine why it does not connent /load. Thanks Clark

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PyHoca-GUI artwork
by Mike Gabriel 14 Dec '10

14 Dec '10

Hi there, Heinz has provided Dick and me some artwork for PyHoca-GUI. New packages have been uploaded to my repository. For those who like to grab a preview, here is a little screenshot presentation of PyHoca-GUI in action: https://svn.das-netzwerkteam.de/x2go/pyhoca-gui/trunk/demo/pyhoca-in-action… BTW: The client now very similarly can be run on Windows (tested on XP only for now). I will provide binaries (py2exe) and probably an installer for Windows soon, too (never done that... :-/ ). Greets, Mike -- DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419 mail: m.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 with likewise-open (ldap) questions
by Ivan Boyadzhiev 14 Dec '10

14 Dec '10

Hi, I've implemented x2go with likewise-open, still I do have 2 issues, which are present only when I use LDAP account, and not present with regular account on the linux. More details: OS Ubuntu 10.10; x2go 3.0.1-5; likewise-open 5.4.0.42111. Ubuntu is joined to Windows Active Directory through LDAP. I don't have any issues there, and everything work fine with this configuration (one issue that I've overcome: when joining LDAP, the users have other group IDs, which came from LDAP. In order to connect to x2go server, your username must have the x2gousers group assignment. In my case in LDAP I do have special group which contains users who have to have access. I've logged to LDAP locally on the ubuntu, and using command id I've checked the unique identification of that LDAP group. Then I've set this number to the x2gousers in the file /etx/groups. This way I overwrite the group that came from LDAP with the local group, and only these users can connect to x2go). Note: I've read all the documentation and I still didn't find solutions for my issues. They are: 1. Connecting remotely with x2go client with LDAP credentials doesn't forward sound - thus no sound can be heard. This problem doesn't occur when I login locally on the Ubuntu with same LDAP credentials. When I'm logged in locally, the next remote login (using the client), has sound. However, I thought that it is something with groups for audio, but seems it is not, as I'm using very same credentials and the only difference is local and remote, this way all user permissions are same (confirmed)... 2. Connecting remotely with x2go client with LDAP credentials doesn't stop the session, when disconnected in every way. The session remain open (visible with x2golistsessions_sql HOSTNAME). I've made around 20 client sessions from one host, and on the next ones it refused to connect me, because the number of authentications were too much. Again, when doing this locally on the Ubuntu, the sessions really terminate. I've even replaced x2gosuspend with x2goterminate, without any success. The only way is to delete file /var/db/x2go/x2go_sessions and to create empty one with /usr/lib/x2go/script/x2gosqlite.sh. The live sessions still remain active, but this doesn't seem good solution. It is not possible to terminate or to resume open sessions with the client as well. So they stay like zombies there. Do you have an idea what can be the root causes for these issues? My logic lead me to some un-escaped symbols used when joining the Domain - like @ and \. Because when logging to the LDAP I am using USERNAME@DOMAIN. Another possibility is to be from Likewise-open, still, there should not happen this as locally everything works fine. Best Regards Ivan

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Re: [X2go-dev] X2go-dev Digest, Vol 24, Issue 11
by Clark Johnson 13 Dec '10

13 Dec '10

Thanks John -- I will try the newer version of the client Clark -----Original Message----- From: x2go-dev-bounces(a)lists.berlios.de [mailto:x2go-dev-bounces@lists.berlios.de] On Behalf Of x2go-dev-request(a)lists.berlios.de Sent: Sunday, December 12, 2010 3:00 AM To: x2go-dev(a)lists.berlios.de Subject: X2go-dev Digest, Vol 24, Issue 11 Send X2go-dev mailing list submissions to x2go-dev(a)lists.berlios.de To subscribe or unsubscribe via the World Wide Web, visit https://lists.berlios.de/mailman/listinfo/x2go-dev or, via email, send a message with subject or body 'help' to x2go-dev-request(a)lists.berlios.de You can reach the person managing the list at x2go-dev-owner(a)lists.berlios.de When replying, please edit your Subject line so it is more specific than "Re: Contents of X2go-dev digest..." Today's Topics: 1. Re: recommending moderation of Eli's postings to x2go-dev (was: Re: PyHoca-GUI (graphical Python X2go client) ready for testing, only for the braves...) (Kurt Gramlich) 2. Re: RSA key issues -- cygwin -- win32 (John A. Sullivan III) ---------------------------------------------------------------------- Message: 1 Date: Sat, 11 Dec 2010 22:36:37 +0100 From: Kurt Gramlich <kurt(a)skolelinux.de> To: x2go-dev(a)lists.berlios.de Subject: Re: [X2go-dev] recommending moderation of Eli's postings to x2go-dev (was: Re: PyHoca-GUI (graphical Python X2go client) ready for testing, only for the braves...) Message-ID: <20101211213637.GK16755(a)gnu-tec.de> Content-Type: text/plain; charset=utf-8 * Mike Gabriel <m.gabriel(a)das-netzwerkteam.de> [101210 20:08]: > Dear list, dear Heinz and Alex, > > On Fr 10 Dez 2010 19:04:26 CET "Eli K." wrote: > > >*stop talking to the old dev team - look forward and try to become > >compatible to nx(4?) again - their server is much better. > > It is only relatively nice to get to know Eli's opinion here, but I > may state here that I will certainly proceed cooperating with Heinz > and Alex. The joint work is very very futile. PyHoca-GUI is not a fork > at all, it is a contribution to X2go. > > As earlier postings of Eli (or whatever his name is) have not been > very polite berfore and neither very contributive in terms of X2go > development, I recommend setting his mail address to moderated on the > mailing list. I know that esp. Heinz absolutely dislikes moderating > postings to this or any other X2go mailing list, but in his case I > think it a little bit of censorship would be quite appropriate!!! > +1 Regards/AmicaLinuxement/Saludos/Viele Gruesse! Kurt Gramlich Projektleitung skolelinux.de -- kurt(a)skolelinux.de GnuPG Key ID 0xE263FCD4 http://www.skolelinux.de ------------------------------ Message: 2 Date: Sat, 11 Dec 2010 21:34:29 -0500 From: "John A. Sullivan III" <jsullivan(a)opensourcedevel.com> To: x2go-dev(a)lists.berlios.de Subject: Re: [X2go-dev] RSA key issues -- cygwin -- win32 Message-ID: <1292121269.3369.5.camel@localhost> Content-Type: text/plain; charset="us-ascii" On Sat, 2010-12-11 at 00:29 +0000, Clark Johnson wrote: > Greetings: > > > > I am new to the project and perhaps my experience with the Win32client > will be useful. From the attached file you can follow the changes > that I had to make in order to get the client to function. I am > wondering if the installation could be tweaked a bit so that these > adjustments would not be necessary. > > > > Clark <snip> Thanks, Clark. Sharing such information is really helpful. We also found 3.0.1-2 to be extremely slow on Windows. We have been using 3.0.1-4 with much better results and do not recall having to make the changes you describe. There are still some issues related to Xming as the Windows XServer. These go away if you use the newer, paid version of Xming. They also go away and performance is significantly improved by using vcxsrv as the X server but that requires hacking the X2Go client code. We are currently working on some patches to submit back to the community to use vcxsrv - John ------------------------------ _______________________________________________ X2go-dev mailing list X2go-dev(a)lists.berlios.de https://lists.berlios.de/mailman/listinfo/x2go-dev End of X2go-dev Digest, Vol 24, Issue 11 ****************************************

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PyHoca-GUI (graphical Python X2go client) ready for testing, only for the braves...
by Mike Gabriel 12 Dec '10

12 Dec '10

Hi there, I have just packaged our (Dick Kniep and Mike Gabriel, supported by feedback and design items from Heinz and Alex) first draft of the graphical X2go client ,,Pyhoca-GUI''. The development currently is progressing very fast as it gets sponsored by Dick's company lindix.nl. Thanks a lot for that!!! You can download the package (and dependencies) for testing from here (please choose your distro and version): deb http://packages.das-netzwerkteam.de/debian squeeze main deb http://packages.das-netzwerkteam.de/debian sid main deb http://packages.das-netzwerkteam.de/ubuntu lucid main deb http://packages.das-netzwerkteam.de/ubuntu maverick main After adding one of the above lines, simply do: apt-get update apt-get install pyhoca-gui (PyHoca-GUI currently is mainly tested under Ubuntu lucid!!! No support for Debian lenny available though!!!) Currently also, the really developmental profile manager is disabled. PyHoca-GUI uses the same configuration files as x2goclient. Thus PyHoca-GUI should work out of the box for most setups / user profiles that have a working x2goclient configuration. PyHoca-GUI is only a small icon that docks into your systray (as the gnome applet for network manager does). Find this icon (the accelerated X from X2go in Ubuntu-like colors) and left-click on it. Then choose ,,Authenticate X2go Server'' and you should find your sesson profiles. This is all very alpha and please do only test on test systems. No warranty if you bug your system (which should not happen)!!! Finally, please note that PyHoca-GUI gets developed in close cooperation with esp. Heinz and also Alex. Heinz will also provide some extra artwork (esp. a logo) for PyHoca-GUI, I have seen first drafts already and I am looking forward to further work of his. Looking forward for feedback, Mike -- DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419 mail: m.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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RSA key issues -- cygwin -- win32
by Clark Johnson 12 Dec '10

12 Dec '10

Greetings: I am new to the project and perhaps my experience with the Win32client will be useful. From the attached file you can follow the changes that I had to make in order to get the client to function. I am wondering if the installation could be tweaked a bit so that these adjustments would not be necessary. Clark

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