x2go-user March 2023

x2go-user@lists.x2go.org

7 participants
7 discussions

File Sharing in X2GoClient stopped working with Win11
by Felipe Ayora 24 Mar '23

24 Mar '23

Hi all, Folder sharing suddenly stopped working after one of the latest Windows 11 updates. It was working fine below, but now users are reported either seeing this error: "Failed to open URI "file://tmp/.x2go-username/media/disk/_cygdrive_C_Users_username_foldername" and "No such file or directory". Or not seeing that error, but files still not showing on the remote server. In both cases (i.e., error and no error) the remote server *does* list the shared folders on the remote server under ~/media/disk. When there is no error, the folder just looks empty. Both users have the latest client for Windows v4.1.2.2. Also, although I do not know if it is related, a command line window opens every time I start X2GoClient on Windows and shows this error: /cygdrive/C/Users/user.name/.x2go/etc/sshd_config line 3: Deprecated option UsePrivilegeSeparation Any help would be much appreciated! Kind Regards, --Felipe

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Re: [X2Go-User] Resume/restoration of windows to linux workspaces
by webman＠manfbraun.de 19 Mar '23

19 Mar '23

Hello Uli! Thanks for your reply. Published applications are not necessarily one-window, strictly spoken, a terminal with two tabs has (at least) two windows. As long as they are inside the terminals main-window, everything works (sad to say: most of the time). If there are two separate windows, which are in the current workspace, this works too. Below of that, it gets complicated. If two windows are in separate workspaces, it works sometimes. I am not sure, why at all - from your guess. If you have two terms at WS1 and WS3 and you resume on WS5, NO window appear at all, though the processes are running well on the server side! For firefox, this is more different. >From several windows, which were originally located in different workspaces, only one window will be restored, this of the current workspace. If all were located in the same workspace, they are restored to the current workspace, if you are in that workspace, which was current at 'suspend' time - otherwise: NO window appear at all! But for the first case, it gets interesting. Go to 'more tools/taskmanager' (of the fox!), you'll see all windows as processes. Double-clicking on of them brings it back to the workspace were it was originally located! Works for all of them. Back to the first cases above. If a session is restored by the x2go-client (I do not know about this, due to lack of documentation), it knows all windows and restores them - so ether the session on the server or the client must give the window-manager advice. I am starting my caja browsers at logon this way and they will be even tagged to be visible on all workspaces. So suspending a session must save the workspace accordingly. I asked me, on which side, the workspace will be read at all, server oder client? Just to be sure to have the same number of WSs, I made them equal (for the testuser), but this does not change anything (may be, a restart is necessary?). >From toolchains perspective, X(&co.) were never made for suspending window sessions (at least, so far I know) and the window manager is only a filter for the workspace numbers. What remains is, that only x2go can handle this at all. This was - a little - exploration, which shed me light on the sessions, which do not work after return from hibernate my box in the morning. Regards, Manfred ----- Original Message ----- From: Ulrich Sibiller [mailto:uli42@gmx.de] To: <webman(a)manfbraun.de> Cc: x2go-user(a)lists.x2go.org Sent: Fri, 17 Mar 2023 08:29:50 +0100 Subject: Re: [X2Go-User] Resume/restoration of windows to linux workspaces Hello Manfred, in published applications mode the local window manager should be responsible for arranging the application windows. The application itself does not know about the workspaces at all. So probably the window manager does not recognize the restored windows as previously known windows. I have no idea at the moment how to even check if this theory applies here. You could try to run another desktop environment locally and check if the behaviour changes. Uli <webman(a)manfbraun.de> schrieb am Fr., 17. März 2023, 03:19: Hello! I am using published applications to run firefox. I am on debian bullseye (client and server). There is a big behavioral difference from using fox between this and using fox local in regard of crash and restore. If the fox restores a crashed window set locally, all windows appear on the workspace, they were originally running on. Not so with x2go - they all appear in the workspace, were the restauration starts. I usually have >50 windows and this is a big pain. Is this the normal behavior? If not, where to look for the problem? Note, this does not depend on a users profile. I created an additional user on the server and it behaves the same. Thanks, Manfred _______________________________________________ x2go-user mailing list x2go-user(a)lists.x2go.org https://lists.x2go.org/listinfo/x2go-user

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Two upcoming X2Go and orca e.V. sponsorship drives - first one this Monday, 2023-03-20!
by Stefan Baur 19 Mar '23

19 Mar '23

Dear $ALL, As you might know, a few years ago, at "X2Go: The Gathering 2017", several key members of X2Go as well as members from other Remote Desktop-/Remote Application projects joined together to form the Open Remote Computing Association - orca e.V. - a registered association under Germanys Civil Code and also registered as a charitable organization, similar to a 501(c)(3) organization in the US. In June 2022, we joined betterplace.org for easier handling of donations. They offer PayPal, SEPA Direct Debit, Credit Card, giropay/paydirekt and Wire transfer. And they also handle issuing donation receipts for us. (Note that while donations towards orca/X2Go are tax-deductible for German tax subjects, this may vary in other jurisdictions.) On Monday, 2023-03-20 (tomorrow!), all single (non-recurring) donations up to an amount of 200 Euro will receive 20% on top directly from betterplace.org. Donations above 200 Euro will receive 40 Euro on top from betterplace.org. The donation pool is limited to 15 000 EUR and will be used up on a first-come, first-served basis. So please try to donate early in the day. The second sponsorship drive starts Tuesday, 2023-04-04, 09:00 CEST and ends Thursday, 2023-04-06, 23:59 CEST. This one is sponsored by the Commercial and Savings Bank Ulm, where orca's bank account resides, and they are going to distribute 10 000 EUR among all charitable organizations registered with them via betterplace.org that receive donations in the timeframe above. So it's not a 1:1 matching of each donation, but the org with the biggest amount of donations gets the biggest piece of the cake, so to speak. If you can, please visit the donation sites below on one or more of the dates mentioned and send a few €€€ our way. (But don't feel bad if you can't. Times are rough. We get that.) We'd prefer if you use the German-language donation forms because with these, we know for sure that the donation counts towards the bank's pledge. However, if you're afraid of hitting the wrong button in a German-language form, feel free to use the link that points to the English version. To donate towards X2Go: German: <https://www.wirwunder.de/projects/111056?wirwunder=235> English: <https://www.betterplace.org/en/projects/111056?wirwunder=235> Note that X2Go currently has two specific needs (with a third one probably popping up soon). To donate specifically towards one of those needs, please see the links below: English-language donation form for travel/lodging/supplies costs @ LinuxDays Chemnitz 2023: <https://www.betterplace.org/en/donate/platform/projects/111056?need_id=4715…> German-language donation form for travel/lodging/supplies costs @ LinuxDays Chemnitz 2023: <https://www.betterplace.org/de/donate/platform/projects/111056?need_id=4715…> English-language donation form for Webserver/Webhosting Costs: <https://www.betterplace.org/en/donate/platform/projects/111056?need_id=4120…> German-language donation form for Webserver/Webhosting Costs: <https://www.betterplace.org/de/donate/platform/projects/111056?need_id=4120…> To donate towards orca e.V., our umbrella org: German: <https://www.wirwunder.de/projects/111057?wirwunder=235> English: <https://www.betterplace.org/en/projects/111057?wirwunder=235> Kind Regards, and Thanks in Advance, Stefan Baur X2Go's Community Manager -- BAUR-ITCS UG (haftungsbeschränkt) Geschäftsführer: Stefan Baur Eichenäckerweg 10, 89081 Ulm | Registergericht Ulm, HRB 724364 Fon/Fax 0731 40 34 66-36/-35 | USt-IdNr.: DE268653243

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Resume/restoration of windows to linux workspaces
by webman＠manfbraun.de 17 Mar '23

17 Mar '23

Hello! I am using published applications to run firefox. I am on debian bullseye (client and server). There is a big behavioral difference from using fox between this and using fox local in regard of crash and restore. If the fox restores a crashed window set locally, all windows appear on the workspace, they were originally running on. Not so with x2go - they all appear in the workspace, were the restauration starts. I usually have >50 windows and this is a big pain. Is this the normal behavior? If not, where to look for the problem? Note, this does not depend on a users profile. I created an additional user on the server and it behaves the same. Thanks, Manfred

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socket bind error with Windows client
by Hanno Foest 15 Mar '23

15 Mar '23

Hello, randomly (about one in three attempts) when I try to connect to one of my x2go sessions, it doesn't work and I'm getting the error Can't create SSH tunnel for the start of the X2GO Session (NX): socket bind error localhost:57030 (translated from German, hope it's correct). netstat doesn't seem to list the port as being in use. So far I didn't find any other way to recover the situation other than rebooting, which is a bit of a hassle sometimes. Client is "X2GoClient V. 4.1.2.2 (Qt - 4.8.6)" Curiously, the second x2go session I use to seems to connect without issues all the time. In case it matters: The machine is connected using OpnnVPN. Turning off antivirus didn't make a difference. Any ideas? - Hanno

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Can't get X2Go connection opened, with error PANIC! The remote NX proxy closed the connection.
by Kalle Tuulos 10 Mar '23

10 Mar '23

In short: X2Goserver is hosted in Ubuntu 22.04 computer. It is being accessed from Ubuntu 20.04 and Windows 11. Previously, everything worked well, but today morning, I could not any more get connection to this computer, not from Ubuntu or from Windows 11. On the Windows client error message is: "The remote proxy closed the connection while negotiating..." On Ubuntu client, x2goclient --debug print shows: --8<--8<-- RESUMING SESSION is KDRIVE: false x2go-DEBUG-../src/onmainwindow.cpp:6142> "Starting NX proxy, command: nxproxy -S nx/nx,options=/home/kalle/.x2go/S-ktuulos-50-1678441073_stDLXDE_dp24/options:50" x2go-DEBUG-../src/sshprocess.cpp:157> Direct tunnel: waiting for connections on "localhost":34744 x2go-DEBUG-../src/onmainwindow.cpp:6618> Proxy wrote on stderr: "\nNXPROXY - Version 3.5.99.23\n\nCopyright (c) 2001, 2011 NoMachine ( http://www.nomachine.com)\nCopyright (c) 2008-2014 Oleksandr Shneyder < o.shneyder(a)phoca-gmbh.de>\nCopyright (c) 2014-2016 Ulrich Sibiller < uli42(a)gmx.de>\nCopyright (c) 2014-2016 Mihai Moldovan <ionic(a)ionic.de>\nCopyright (c) 2011-2016 Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de>\nCopyright (c) 2015-2016 Qindel Group (http://www.qindel.com)\n\nNXCOMP, NX protocol compression and NX extensions to this software\nare copyright of the aforementioned persons and companies.\n\nRedistribution and use of the present software is allowed according\nto terms specified in the file LICENSE.nxcomp which comes in the\nsource distribution.\n\nAll rights reserved.\n\nNOTE: This software has received contributions from various other\ncontributors, only the core maintainers and supporters are listed as\ncopyright holders. Please contact us, if you feel you should be listed\nas copyright holder, as well.\n\nNX protocol compression is derived from DXPC project.\n\nCopyright (c) 1995,1996 Brian Pane\nCopyright (c) 1996,1997 Zachary Vonler and Brian Pane\nCopyright (c) 1999 Kevin Vigor and Brian Pane\nCopyright (c) 2000,2003 Gian Filippo Pinzari and Brian Pane\n\nAll rights reserved.\n\nSee https://github.com/ArcticaProject/nx-libs for more information.\n\nInfo: Proxy running in server mode with pid '2505200'.\nSession: Starting session at 'Fri Mar 10 11:37:54 2023'.\nInfo: Using errors file '/home/kalle/.x2go/S-ktuulos-50-1678441073_stDLXDE_dp24/sessions'.\nInfo: Using stats file '/home/kalle/.x2go/S-50/stats'.\nLoop: WARNING! Overriding auxiliary X11 port with new value '1'.\nWarning: Overriding auxiliary X11 port with new value '1'.\nInfo: Using abstract X11 socket in kernel namespace for accessing DISPLAY=:50.\nInfo: Connecting to remote host 'localhost:34744'.\nInfo: Connected to remote proxy on FD#5.\n" x2go-DEBUG-../src/sshprocess.cpp:109> New TCP connection. x2go-DEBUG-../src/sshprocess.cpp:114> New socket: 14 x2go-DEBUG-../src/sshmasterconnection.cpp:1977> Creating new channel. x2go-DEBUG-../src/sshmasterconnection.cpp:1990> New channel:0x7f41a4012000 x2go-DEBUG-../src/sshmasterconnection.cpp:1994> Forwarding parameters: from remote ("localhost":33744) to local ("localhost":33758) x2go-DEBUG-../src/sshmasterconnection.cpp:2028> Temporary session port after config file parse: 33744 x2go-DEBUG-../src/sshmasterconnection.cpp:2032> Temporary session host after config file parse: localhost x2go-DEBUG-../src/sshmasterconnection.cpp:2059> New channel forwarded. .... x2go-DEBUG-../src/sshmasterconnection.cpp:2121> EOF on channel 0x7f41a4012000; SshProcess object: 2 x2go-DEBUG-../src/sshmasterconnection.cpp:2222> EOF sent. x2go-DEBUG-../src/sshmasterconnection.cpp:2224> Channel closed. x2go-DEBUG-../src/onmainwindow.cpp:6618> Proxy wrote on stderr: "Loop: PANIC! The remote NX proxy closed the connection.\nError: The remote NX proxy closed the connection.\nLoop: PANIC! Failure negotiating the session in stage '7'.\nError: Failure negotiating the session in stage '7'.\nLoop: PANIC! Wrong version or invalid session authentication cookie.\nError: Wrong version or invalid session authentication cookie.\nSession: Terminating session at 'Fri Mar 10 11:37:59 2023'.\nSession: Session terminated at 'Fri Mar 10 11:37:59 2023'.\nqt.qpa.xcb: X server does not support XInput 2\n" x2go-DEBUG-../src/onmainwindow.cpp:6475> Deleting Proxy. x2go-DEBUG-../src/onmainwindow.cpp:6520> Waiting for proxy to exit. x2go-DEBUG-../src/onmainwindow.cpp:6544> Checking exit status. x2go-DEBUG-../src/sshprocess.cpp:199> Executing remote command via SshProcess object 3: "x2gocmdexitmessage ktuulos-50-1678441073_stDLXDE_dp24" --8<--8<-- Printing, audio and shared folder have previously been activated and they have worked. Now I have disabled them and it does not make any difference. I have tried to re-install x2go server by command: sudo apt-get install --reinstall x2goserver x2goserver-common x2goserver-xsession On the server computer, .xsession-x2go-<client>-errors file has following: --8<--8<-- XSession-x2go: X session started for ktuulos at pe 10.3.2023 11.30.25 +0200 dbus-update-activation-environment: setting DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus dbus-update-activation-environment: setting DISPLAY=:50 dbus-update-activation-environment: setting XAUTHORITY=/home/ktuulos/.Xauthority xrdb: Connection reset by peer xrdb: Can't open display ':50' /etc/x2go/Xsession.d/30x11-common_xresources: line 16: has_option: command not found xhost: unable to open display ":50" /etc/x2go/Xsession.d/75dbus_dbus-launch: line 9: has_option: command not found dbus-update-activation-environment: setting QT_ACCESSIBILITY=1 /etc/x2go/Xsession.d/90x11-common_ssh-agent: line 9: has_option: command not found dbus-update-activation-environment: setting SHELL=/bin/bash --8<--8<-- X2goserver host information: ktuulos@kallep50:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 22.04.2 LTS Release: 22.04 Codename: jammy ktuulos@kallep50:~$ dpkg -l x2go* openssh-server Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-=====================-===============-============-=================================== ii openssh-server 1:8.9p1-3ubuntu0.1 amd64 secure shell (SSH) server, for secure access from remote machines un x2goagent <none> <none> (no description available) ii x2goclient 4.1.2.2-2build1 amd64 X2Go Client application (Qt5) un x2goclient-gtk <none> <none> (no description available) un x2godesktopsharing <none> <none> (no description available) un x2goprint <none> <none> (no description available) ii x2goserver 4.1.0.3-5 amd64 X2Go Server ii x2goserver-common 4.1.0.3-5 all X2Go Server (common files) un x2goserver-compat <none> <none> (no description available) ii x2goserver-extensions 4.1.0.3-5 all X2Go Server (extension support) ii x2goserver-fmbindings 4.1.0.3-5 all X2Go Server (file manager bindings) un x2goserver-home <none> <none> (no description available) un x2goserver-one <none> <none> (no description available) ii x2goserver-printing 4.1.0.3-5 all X2Go Server (printing support) un x2goserver-pyhoca <none> <none> (no description available) ii x2goserver-x2goagent 4.1.0.3-5 amd64 X2Go Server's X2Go Agent ii x2goserver-xsession 4.1.0.3-5 all X2Go Server (Xsession runner) On the Ubuntu 20.04 version, x2go package versions are the same, but openssh-server is version 1:8.2. Could someone please instruct how to get this working? This Ubuntu 22.04 is my R&D work computer and I don't have a keyboard or monitor attached to it at all, so now I can only use it through the SSH terminal, which makes desktop operations pretty difficult. :( BR Kalle

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X2Go Booth at Chemnitzer LinuxTage 2023 - This Weekend!
by Stefan Baur 10 Mar '23

10 Mar '23

Hi everyone! LinuxDays Chemnitz are taking place as a real-life event this Sat/Sun, and we'd love to see you there! We have secured both a booth for X2Go, as well as a handful of volunteers to staff it. If you want to support X2Go and our volunteers, you can chip in and help cover their costs for travel/lodging/supplies: <https://www.betterplace.org/en/donate/platform/projects/111056?need_id=4715…> - roughly 700 Euros should cover everything that's needed. Kind Regards, Stefan Baur X2Go's Event Planner -- BAUR-ITCS UG (haftungsbeschränkt) Geschäftsführer: Stefan Baur Eichenäckerweg 10, 89081 Ulm | Registergericht Ulm, HRB 724364 Fon/Fax 0731 40 34 66-36/-35 | USt-IdNr.: DE268653243

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x2go-user March 2023