x2go-user February 2019

x2go-user@lists.x2go.org

11 participants
16 discussions

Clipboard stops working
by Norm Green 11 Mar '19

11 Mar '19

Hello List, I find that the clipboard stops working after a period of time. Specifically, copying from the windows desktop to the x2go window doesn't work because x2go thinks the clipboard is empty. I am copying from emacs on Windows to emacs on Linux. It doesn't matter how many times I select and copy on windows, x2go does not pass the clipboard contents to emacs on Linux. But if I disconnect from the server and reconnect, it works, using the same emacs windows. This is with x2go client 4.1.1.1 running on Win7, but it also happened on previous x2go client versions (4.0.x) . x2go server 4.0.1.20 is running on Ubuntu 16.04 Is this a known bug? Any way to fix it? Norm Green

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Connection timeout over high latency network links
by Brent Roman 08 Mar '19

08 Mar '19

I'm trying to run a remote X-session on a satellite link. The ping latency is typically 800ms. I have no trouble ssh'ing to the remote machine, but, whenever I try to connect a remote session via the x2goclient, it ends within a couple seconds with a dialog box saying: Timeout connecting to raven raven is the remote hostname. Both machines are running Debian Jessie. The x2goclient is version 4.4.1.0 Is there some connection timeout parameter that I could increase to make it possible to use high latency links? Is this fixed in newer versions? Thanks! -- Brent Roman MBARI Software Engineer Tel: (831) 775-1808 7700 Sandholdt Road, Moss Landing, CA 95039 mailto:brent@mbari.org http://www.mbari.org/~brent

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x2go and Ubuntu 18.04 server
by Heiko Friedel 01 Mar '19

01 Mar '19

Hi all, I'm trying to use x2go-server on a headless machine for virt-manager with x2go-client on Win10. I did not install any desktop environment. x2go terminates the connection immediately, no window is shown. If I use VcXsrv with putty, virt-manager is working fine. Here are some logs from the server: ==> auth.log <== Feb 28 10:27:14 ignite sshd[27502]: Accepted password for username from 10.8.20.10 port 62833 ssh2 Feb 28 10:27:14 ignite sshd[27502]: pam_unix(sshd:session): session opened for user username by (uid=0) Feb 28 10:27:14 ignite systemd-logind[709]: New session 24 of user username. ==> syslog <== Feb 28 10:27:14 ignite systemd[1]: Started Session 24 of user username. Feb 28 10:27:19 ignite /usr/sbin/x2gocleansessions[858]: username-50-1551346038_stRvirt-manager_dp32: state file for this session does not exist: /tmp/.x2go-username/C-username-50-1551346038_stRvirt-manager_dp32/state (this can be ignored during session startups) Feb 28 10:27:19 ignite /usr/bin/x2gostartagent: successfully started X2Go Agent session with ID username-50-1551346038_stRvirt-manager_dp32 Feb 28 10:27:24 ignite /usr/bin/x2gosetkeyboard: Setting X keyboard according to /home/username/.x2go/C-username-50-1551346038_stRvirt-manager_dp32/keyboard ==> auth.log <== Feb 28 10:27:26 ignite sshd[27588]: Received disconnect from 10.8.20.10 port 62833:11: Bye Bye Feb 28 10:27:26 ignite sshd[27588]: Disconnected from user username 10.8.20.10 port 62833 Feb 28 10:27:26 ignite sshd[27502]: pam_unix(sshd:session): session closed for user username Feb 28 10:27:36 ignite systemd-logind[709]: Removed session 24. And here from Windows: NXPROXY - Version 3.5.0 Copyright (C) 2001, 2010 NoMachine. See http://www.nomachine.com/ for more information. Info: Proxy running in client mode with pid '364'. Session: Starting session at 'Thu Feb 28 10:35:02 2019'. Info: Connecting to remote host 'localhost:58426'. Info: Connection to remote proxy 'localhost:58426' established. 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 ADSL link parameters 512/24/1/0. Info: Using cache parameters 4/4096KB/8192KB/8192KB. Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_32'. Info: Using ZLIB data compression 1/1/32. Info: Using ZLIB stream compression 4/4. Info: No suitable cache file found. Info: Forwarding X11 connections to display 'localhost:0'. Session: Session started at 'Thu Feb 28 10:35:02 2019'. Info: Established X server connection. Info: Using shared memory parameters 0/0K. Do I need to install a window manager on Ubuntu to run just a single apllication with x2go? Thanks!

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Re: [X2Go-User] local X server fails to accept the connection?
by Grigory Shamov 21 Feb '19

21 Feb '19

I thought I was replying to the list, sorry if it did not work. Yes, having user to try your suggestions now. -- Grigory Shamov WestGrid Site Lead / HPC Specialist University of Manitoba E2-588 EITC Building, (204) 474-9625 On 2019-02-20, 4:22 PM, "Stefan Baur" <X2Go-ML-1(a)baur-itcs.de> wrote: >Hi Grigory, > >That wasn't my suggestion, but Paul's. > >What about my suggestions? Have you tried any of those? > >-Stefan > >Am 20.02.19 um 23:13 schrieb Grigory Shamov: >> Hi Stefan, >> >> Yes, I have tried that, deleting .x2go folder and .xsession-x2go*errors >>and .Xauthority in their $HOME >> >> Looks like it didnt help (the user still fails to connect, there is no >>new .x2go folder there ). >> >> -- >> Grigory Shamov >> WestGrid Site Lead / HPC Specialist >> University of Manitoba >> E2-588 EITC Building, >> (204) 474-9625 >> >> >> From: x2go-user >><x2go-user-bounces(a)lists.x2go.org<mailto:x2go-user-bounces@lists.x2go.org >>>> on behalf of Paul Borowicz >>>><paul(a)borowicz.org<mailto:paul@borowicz.org>> >> Date: Tuesday, February 19, 2019 at 8:42 AM >> To: Stefan Baur <X2Go-ML-1(a)baur-itcs.de<mailto:X2Go-ML-1@baur-itcs.de>> >> Cc: "x2go-user(a)lists.x2go.org<mailto:x2go-user@lists.x2go.org>" >><x2go-user(a)lists.x2go.org<mailto:x2go-user@lists.x2go.org>> >> Subject: Re: [X2Go-User] local X server fails to accept the connection? >> >> Have you cleaned out the .x2go folder in the user accounts? >> >> On Tue, Feb 19, 2019 at 5:15 AM Stefan Baur >><X2Go-ML-1(a)baur-itcs.de<mailto:X2Go-ML-1@baur-itcs.de>> wrote: >> Am 15.02.19 um 17:00 schrieb Grigory Shamov: >>> We are running X2go servers on CentOS 6 Linux; other clients (MacOS, >>>other >>> users with Windows 7 and 10) seem to connect fine. So the problem >>>likely >>> is with the client. I believe the Windows x2go client comes with an X11 >>> server bundled with it and configured. >>> >>> Could anyone suggest what could be the reason for such errors, have >>>anyone >>> encountered them before? Any advice much appreciated! Thanks! >> >> If it's only happening on one client, my guess would be that the client >> installation is broken somehow. >> >> This could be just about anything - hardware failure (disk, RAM), >> malware, an overzealous AntiVirus, or just a plain misconfiguration or >> filesystem error. >> >> The easiest way would probably be to create another user account on the >> same client and try it with that one - to see if the problem is with the >> user or the machine. To cross-check, have the affected user try to log >> in using X2GoClient on a different machine. >> >> If the problem persists and is tied to the machine, the next try would >> be to perform a clean uninstall of X2GoClient, reboot, then reinstall >> X2GoClient from a newly downloaded copy of the installer. >> >> If it's tied to the user, compare group memberships both on the client >> and on the server side between the affected user and a user having no >> issues, also, let the user try to log in using plain SSH (PuTTY) and >> possibly with X-Forwarding and a manually started X-Server on the >> client, to see if the issue is with X2Go or with the underlying >> operating system/permissions/whatever. >> >> Kind Regards, >> Stefan Baur >> >> -- >> 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 >> _______________________________________________ >> x2go-user mailing list >> x2go-user(a)lists.x2go.org<mailto:x2go-user@lists.x2go.org> >> https://lists.x2go.org/listinfo/x2go-user >> > > >-- >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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Re: [X2Go-User] local X server fails to accept the connection?
by Grigory Shamov 21 Feb '19

21 Feb '19

Thanks! The client OS is in fact Windows, and I think they only have single user (like home edition or whats it called). We have tried connecting via putty and straight SSH works. We have tried giving x2go client a standalone VcxSrv but didn¹nt help. Is there a , I guess, well defined setting (local port(s) for X11?) to specifically check Antivirus for? -- Grigory Shamov WestGrid Site Lead / HPC Specialist University of Manitoba E2-588 EITC Building, (204) 474-9625 On 2019-02-19, 4:12 AM, "x2go-user on behalf of Stefan Baur" <x2go-user-bounces(a)lists.x2go.org on behalf of X2Go-ML-1(a)baur-itcs.de> wrote: >Am 15.02.19 um 17:00 schrieb Grigory Shamov: >> We are running X2go servers on CentOS 6 Linux; other clients (MacOS, >>other >> users with Windows 7 and 10) seem to connect fine. So the problem likely >> is with the client. I believe the Windows x2go client comes with an X11 >> server bundled with it and configured. >> >> Could anyone suggest what could be the reason for such errors, have >>anyone >> encountered them before? Any advice much appreciated! Thanks! > >If it's only happening on one client, my guess would be that the client >installation is broken somehow. > >This could be just about anything - hardware failure (disk, RAM), >malware, an overzealous AntiVirus, or just a plain misconfiguration or >filesystem error. > >The easiest way would probably be to create another user account on the >same client and try it with that one - to see if the problem is with the >user or the machine. To cross-check, have the affected user try to log >in using X2GoClient on a different machine. > >If the problem persists and is tied to the machine, the next try would >be to perform a clean uninstall of X2GoClient, reboot, then reinstall >X2GoClient from a newly downloaded copy of the installer. > >If it's tied to the user, compare group memberships both on the client >and on the server side between the affected user and a user having no >issues, also, let the user try to log in using plain SSH (PuTTY) and >possibly with X-Forwarding and a manually started X-Server on the >client, to see if the issue is with X2Go or with the underlying >operating system/permissions/whatever. > >Kind Regards, >Stefan Baur > >-- >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 >_______________________________________________ >x2go-user mailing list >x2go-user(a)lists.x2go.org >https://lists.x2go.org/listinfo/x2go-user

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Low speed of x2go server
by Stroganov Roman 20 Feb '19

20 Feb '19

>Is it possible that something is slowing down the server (for example, >the server being a virtual machine, and the host running out of RAM and >thus using swap space on disk instead, or using slower hard disks than >in the old server)? All servers virtual. With identical hardware providing and on one host. >What happens when you set up a test server with a real Ubuntu 18.04 LTS, >rather than linux lite? Still slow? I did not to start a full desktop (gnome) in ubuntu 18.04. It is just disconnected. It turned out to start separately the Firefox and OpenOffice applications. It works quickly! >Is the entire desktop running slow, or only particular applications >(Firefox, for example)? Slowly works when I give a desktop. As I wrote before the application (firefox, openoffice) work quickly everywhere. LinuxLite 3.8/LinuxLite 4.2/Ubuntu 18.04 When I understood it I decided to change default style (Adapta) and icon theme (Papirus-Adapta) in LinLite 4.2 for others (did on the server not through x2go). After having connected by this user through x2go I found out that everything works quickly. I decided to double-check it. And again changed style and icons for default (Adapta) I very much was surprised, but everything continued to work quickly and well. I several times perezagrugit the x2go server every time being connected to it by the same user again and everything works quickly with windows and linux of clients. After I was connected from the thin client of TCE by the same user and all very slowly. Now I have such stable results with the user of "test" (Settings of clients identical): Windows client = quickly Linux client = quickly Thin client of TCE = very slowly Connection by any users not of "test" (Tried to change styles and icons): Windows client = very slowly Linux client = very slowly Thin client of TCE = very slowly I could not repeat magic which turned out with the user of "test" with other users. I cannot understand dependence in what prevents the x2go server to work quickly. But I was convinced that x2go the server can quickly work with linux Lite 4.2 Maybe somebody will prompt what in my case prevents x2go to work quickly? Or there can be I am mistaken what the style of a design and style of icons is guilty? There are ideas? -- С Уважением Строганов Роман

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local X server fails to accept the connection?
by Grigory Shamov 20 Feb '19

20 Feb '19

HI All, A user of our system recently come with the following errors while trying to use X2go client on Windows 10. === Info: Forwarding X11 connections to display 'localhost:0'. Session: Session started at 'Thu Feb 14 12:51:37 2019'. Warning: Protocol mismatch or no X authentication data. Session: Terminating session at 'Thu Feb 14 12:51:41 2019'. Info: Your session was closed before reaching a usable state. Info: This can be due to the local X server refusing access to the client. Info: Please check authorization provided by the remote X application. Session: Session terminated at 'Thu Feb 14 12:51:41 2019'. === We are running X2go servers on CentOS 6 Linux; other clients (MacOS, other users with Windows 7 and 10) seem to connect fine. So the problem likely is with the client. I believe the Windows x2go client comes with an X11 server bundled with it and configured. Could anyone suggest what could be the reason for such errors, have anyone encountered them before? Any advice much appreciated! Thanks! -- Grigory Shamov WestGrid Site Lead / HPC Specialist University of Manitoba E2-588 EITC Building, (204) 474-9625

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Low speed of x2go server
by Stroganov Roman 19 Feb '19

19 Feb '19

Hello! I configured x2go server on linux lite 3.8 (package base ubuntu 16.04 x64 xfce) clients on windiws, linux and the thin clients loaded with tce. Work speed very good. But I need to pass to linux lite 4 (package base ubuntu 18.04 x64 xfce) When I set Linux lite 4 and x2go server at connection to it from any client work speed very much and very low. It is impossible to work normally!: ( I use identical methods of a compression both in new and in the old version of the server. The server was installed according to the instruction on the website x2go from ppa: x2go/stable The list of the packets set at me: ii libx2go-log-perl 4.1.0.3-0~1708~ubuntu18.04.1 all Perl X2Go::Log package ii libx2go-server-db-perl 4.1.0.3-0~1708~ubuntu18.04.1 amd64 Perl X2Go::Server:DB package ii libx2go-server-perl 4.1.0.3-0~1708~ubuntu18.04.1 all Perl X2Go::Server package ii x2goserver 4.1.0.3-0~1708~ubuntu18.04.1 amd64 X2Go server ii x2goserver-common 4.1.0.3-0~1708~ubuntu18.04.1 amd64 X2Go Server (common files) ii x2goserver-extensions 4.1.0.3-0~1708~ubuntu18.04.1 all X2Go Server (extension support) ii x2goserver-fmbindings 4.1.0.3-0~1708~ubuntu18.04.1 all X2Go Server (file manager bindings) ii x2goserver-printing 4.1.0.3-0~1708~ubuntu18.04.1 all X2Go server (printing support) ii x2goserver-x2goagent 4.1.0.3-0~1708~ubuntu18.04.1 amd64 X2Go Server's X2Go Agent ii x2goserver-xsession 4.1.0.3-0~1708~ubuntu18.04.1 all X2Go Server (Xsession runner) Who faced x2go the ubuntu server 18.04? Can at 18:04 there are no necessary packets (outdated versions) or I can what I do that not correctly? I hope for your help! -- С Уважением Строганов Роман

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x2go session control panel
by Stroganov Roman 11 Feb '19

11 Feb '19

>You need to find an archive of the original nxclient binary by >nomachine in version 3.5. Then install it. Look up where it installs >the nxclient binary and change the following line in >/usr/bin/x2gostartagent: > >export NX_CLIENT="${X2GO_LIB_PATH}/x2gosuspend-agent" > >to > >export NX_CLIENT="<path to you nxclient binary>" I found the file / usr / bin / x2gostartagent only on the x2go server. Need to change on the server? I found nomachine version 3.5.0-7 and installed it. In the file / usr / bin / x2gostartagent I changed export NX_CLIENT = "$ {X2GO_LIB_PATH} / x2gosuspend-agent" on export NX_CLIENT = "/ usr / NX / bin / nxclient" After that, I restarted the server. Clients connect to the server as before. I did not find any session control panel. While I use the "magic pixel" I do not know if users will get used to it or not ... :( -- С Уважением Строганов Роман

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x2go session control panel
by Stroganov Roman 07 Feb '19

07 Feb '19

If I understand correctly, can I make a session minimization button in a session? If it can be done this will be very convenient. This should be enough. I'm sorry if you did not understand your letter correctly. My English is bad -- С Уважением Строганов Роман

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x2go-user February 2019