- x2go-user - X2Go ListServ

I cannot connect to server
by Jana 14 Jan '21

14 Jan '21

Hello! I have x2goserver 4.1.0.3 (running on Linux Mint ver 20.1 with Mate) and two x2goclients (ver 4.1.2.1 on Debian Stable and ver 4.1.2.2 on Archlinux). Server is behind firewall and I am connecting to it via 'ssh -L' tunnel through machine, which is visible to both side. SSH connection from both clients works fine. But if vhile x2go connection from Debian works, I cannot connect from Archlinux and I do not know why - can you help me? In the attachment is two "--debug" client's outputs. The beginnig looks fine on both, but in the "client-arch-bad" outputs somewhere at the line 91 it started to go wrong. Many thanks for help. Jana

2 1

x2gothinclient_create seems to fail
by Rodolphe Catrais 14 Jan '21

14 Jan '21

Hello everybody! I don't know if this is the right place or the right way for asking for help, thank you for pointing me in the good direction if not. Meanwhile, I'm trying to set an x2go TCE by carefully following this how-to: https://wiki.x2go.org/doku.php/wiki:advanced:tce:install <https://wiki.x2go.org/doku.php/wiki:advanced:tce:install> I never get to this point :'During installation you will be asked to configure your thin client's default language and default keyboard settings. Please do so. Hint: make sure you use UTF-8 encoding in your language selection (e.g. en_US.UTF-8, de_DE.UTF-8, etc.).' This is where x2gothinclient_create seems to fail: Calling hook klibc-utils /usr/share/initramfs-tools/scripts/init-bottom/ORDER ignored: not executable /usr/share/initramfs-tools/scripts/init-top/ORDER ignored: not executable /usr/share/initramfs-tools/scripts/local-premount/ORDER ignored: not executable Building cpio /boot/initrd.img-4.19.0-11-amd64.new initramfs find: '/opt/x2gothinclient/chroot/var/lib/x2gothinclient': No such file or directory find: '/opt/x2gothinclient/chroot/var/lib/x2gothinclient': No such file or directory find: '/opt/x2gothinclient/chroot/var/lib/alsa': No such file or directory find: '/opt/x2gothinclient/chroot/var/lib/alsa': No such file or directory X2Go Thin Client Environment: ============================= The X2Go Thin Client Environment is using the following settings: TC_PRETTY_NAME=X2Go-rod TC_VERSION=1.5.0.1 TC_FLAVOUR=displaymanager TC_BASE=/opt/x2gothinclient TC_CONFIG=/opt/x2gothinclient/etc TC_CHROOT=/opt/x2gothinclient/chroot TC_SHELL=bash TC_DISTRO_CODENAME=buster TC_ARCH=amd64 TC_DEBMIRROR_URL=http://ftp.debian.org/debian TC_X2GO_DEBURL=deb http://packages.x2go.org/debian buster extras main TC_HTTP_PROXY= TC_HTTPS_PROXY= TC_FTP_PROXY= TC_MODULE_BLACKLIST=pcspkr TC_TFTP_BOOT=/srv/tftp Edit /etc/x2go/x2gothinclient_settings to change this. Installing X2Go TCE configuration into chroot environment... ------------------------------------------------------------ '/opt/x2gothinclient/etc/x2gothinclient_init.d/005_x2gothinclient-wipe-home' -> '/opt/x2gothinclient/chroot/etc/x2go/x2gothinclient_init.d/005_x2gothinclient-wipe-home' '/opt/x2gothinclient/etc/x2gothinclient_init.d/010_x2gothinclient-fresh-home' -> '/opt/x2gothinclient/chroot/etc/x2go/x2gothinclient_init.d/010_x2gothinclient-fresh-home' '/opt/x2gothinclient/etc/x2gothinclient_init.d/950_x2gothinclient-minidesktop' -> '/opt/x2gothinclient/chroot/etc/x2go/x2gothinclient_init.d/950_x2gothinclient-minidesktop' '/opt/x2gothinclient/etc/x2gothinclient-displaymanager_start' -> '/opt/x2gothinclient/chroot/etc/x2go/x2gothinclient-displaymanager_start' '/opt/x2gothinclient/etc/x2gothinclient_sessions' -> '/opt/x2gothinclient/chroot/etc/x2go/x2gothinclient_sessions' '/opt/x2gothinclient/etc/x2gothinclient-displaymanager_background.svg' -> '/opt/x2gothinclient/chroot/etc/x2go/x2gothinclient-displaymanager_background.svg' cp: cannot stat '/opt/x2gothinclient/etc/freerdp/known_hosts*': No such file or directory The host is a Debian 10 buster, a virtual machine on qemu/kvm. Any idea? Thanks in advance, Rod

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X2go Server Float Windows?
by Rodrigo José Petreça 07 Jan '21

07 Jan '21

Hello Everybody! Please, i have a question! I am migrating an internal server, from fedora 11 + freenxserver, to debian buster + x2go server. The basic are working, but we have a custom application, it's a very simple application. I need to export xterm or gnome-terminal, and execute bash script, this script calls a simple text menu. The menu contains options, and this option calls some programs. on the freenx server i can export terminal and other applications in floating and separate windows, but i can't do this on x2go. When I access the x2go server from the x2go client, I can see all applications on 1 window only, like vnc access. It's possible to configure x2go server or client to float and separate windows? Thanks...

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X2Go Desktop sharing view-only mode?
by Jakob Czapski 28 Dec '20

28 Dec '20

Hello all, please tell me if there is an option on the server side to force all clientside connections to be viewonly? The purpose is that for educational & security purposes clients should not interfere with the presentation nor the system itself. Thank you in advance for your help!

2 1

help
by Theodora Chrysoula 21 Dec '20

21 Dec '20

Hello, I am trying to use X2go to connect to my VM, but every time i open the session X2go fails and i have a message x2goclient.exe has stopped working. Everything was fine, a couple of weeks ago. I have windows 10. Can you imagine what causes the problem? Thanks in advance

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session.log file fills disk
by David Schumm 15 Dec '20

15 Dec '20

We are seeing this on multiple machines where the session.log file is massive. I've seen them as large as 82gb. This of course causes the disk to fill When you attempt to open it it says it's a binary file Server is Centos 7 running x2go server 4.1.0.3-9 Anyone seen this? == This e-mail may contain SEAKR Engineering (SEAKR) Confidential and Proprietary Information. If this message is not intended for you, you are strictly prohibited from using this message, its contents or attachments in any way. If you have received this message in error, please delete the message from your mailbox. This e-mail may contain export-controlled material and should be handled accordingly.

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X2Go fails to connect when SSH config contains multiple jump hosts
by Konrad, Martin 08 Dec '20

08 Dec '20

Hi, I have a few hosts in my ~/.ssh/config file which have ProxyJump lines specifying _multiple_ jump hosts: Host foo ForwardAgent yes ProxyJump first.example.com, second.example.com It seems like X2Go doesn't like this kind of configuration. I complains when I try to establish any connection (even when trying to connect to other hosts which don't have a line like this): "Cannot connect to first.example.com:22 Failed to process system configuration" Everything works fine in cases that require only a single jump host. As far as I can tell from the ssh_config (5) man page my configuration with multiple jump hosts is valid. Any suggestions how to deal with this? Thanks a lot, Martin -- Martin Konrad Facility for Rare Isotope Beams Michigan State University 640 South Shaw Lane East Lansing, MI 48824-1321, USA Tel. 517-908-7253 Email: konrad(a)frib.msu.edu

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What is the hash algorithm / format used for the host key hash during connection instantiation?
by Stefan Mätje 07 Dec '20

07 Dec '20

Hi, I'm using x2go to connect from a Linux Mint (19) machine to an Ubuntu server using a RSA key over SSH. During the connection instantiation x2go presents me the following question: Der Server ist unbekannt. Vertrauen Sie diesem Host-Key? Hash des öffentlichen Schlüssels: remote.server.com:22 - d7:2e:e0:ae:27:7a:e5:33:59:6d:00:12:75:22:0a:c6:9a:10:31:a9 I. e. "The server is unkown. Do you trust this host key?" I now have problems to match the presented fingerprint hash to the host identity keys that are present on the server machine under /etc/ssh/ssh_host_*key*. When I later inspect the .ssh/known_hosts file on my Linux Mint machine (client side) I can match the public key there to the public host identity key on the server side that has the following fingerprints (displayed with 'ssh-keygen -l -E {md5|sha256} -f ssh_host_ecdsa_key'): ssh_host_ecdsa_key.pub: 256 SHA256:3vf9PbLKhlaFpff7SxpaDLyrfYJF8iJ+Px3bMzLNY2U root(a)internal.server.com (ECDSA) 256 MD5:7b:9a:76:4b:58:ce:87:bf:3f:56:41:a9:7c:f8:bf:e9 root(a)internal.server.com (ECDSA) Neither of these fingerprints can be matched to the fingerprint / hash that x2go presents to me. The MD5 hash line is similar but shorter (only 16 hash bytes aka. 128 bits that matches a MD5 sum length). The x2go hash has 20 bytes (160 bits) hash length. The question is how can I reliably match the fingerprint x2go presents to me to the right host ID hash. Am I comparing / expecting the wrong keys? Can somebody please shed some light on this issue. Best regards, Stefan

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Help with Login
by a.tierney＠frigel.com 18 Nov '20

18 Nov '20

After a Windows update about a month ago, my X2Go stopped working. I can log in, but I get this error message" Loop: PANIC! Can't open options file '/cygdrive/C/Users/Andy'. Error is 2 'No such file or directory'. Error: Can't open options file '/cygdrive/C/Users/Andy'. Error is 2 'No such file or directory'. Loop: PANIC! Can't open options file '/cygdrive/C/Users/Andy'. Error is 2 'No such file or directory'. Error: Can't open options file '/cygdrive/C/Users/Andy'. Error is 2 'No such file or directory'. Loop: PANIC! Can't open options file '/cygdrive/C/Users/Andy'. Error is 2 'No such file or directory'. Error: Can't open options file '/cygdrive/C/Users/Andy'. Error is 2 'No such file or directory'. Connection timeout, abortingLoop: PANIC! Can't open options file '/cygdrive/C/Users/Andy'. Error is 2 'No such file or directory'. Error: Can't open options file '/cygdrive/C/Users/Andy'. Error is 2 'No such file or directory'. Connection timeout, aborting I am not an IT guru, so I need some help deciphering what this means. Any help would be greatly appreciated. Thanks, Andy Andy Tierney Service Manager Frigel North America 150 Prairie Lake Road East Dundee, IL 60118 O: 847 540-0160 X: 125 C: 847 624-9090 a.tierney(a)frigel.com <mailto:a.tierney@frigel.com> www.frigel.com <http://www.frigel.com/> -- This email has been checked for viruses by AVG. https://www.avg.com

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Terminating session when connection drops takes a long time
by James Bowery 18 Nov '20

18 Nov '20

As previously mentioned I have a flakey internet connection and must frequently reestablish my x2go connection but this is compounded by a problem: When the connection is momentarily interrupted getting reconnected takes a while because of strange behavior in trying to close out and reopen the x2go session: Click the x to close the window and I'm asked "No response received from the remote server. Do you want to terminate the current session?" which is not strange at all but when I click "yes" it doesn't do so immediately, but can take quite a while. Other windows pop up with additional questions depending on what I do to overcome the delay. The closest thing I've discovered to this is an issue from 8 years ago: https://x2go-user.x2go.narkive.com/4jvHBucc/session-resuming-after-disconne… Is there a configuration parameter or something I can set nowadays?

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scanner x2gothinclient , usb-pendrive
by ovt＠zaokknm.ru 17 Nov '20

17 Nov '20

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Clicking on other than window border doesn't bring it to the front
by James Bowery 16 Nov '20

16 Nov '20

I'm wondering if I'm having trouble with x2go or with X11 or my kinesthetic memory, but for the last few days, my reflexes to bring a terminal window to the front by clicking on other than its border is being defied. I have to click on the border to get it to come to the front. Disconnecting and reconnecting (even with login) does not reset this condition.

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mounting local folders not working
by Bernhard J. Mayr 12 Nov '20

12 Nov '20

Hi! I am using the X2Go-Client with mounted home directories. Now the mount does not work from both clients (mac and ubuntu 20.10). While the connection is being established, there is no error message. What I have checked so far: remote user on server is in group „fuse“ on mac: enabled remote login for all users Any idea on how to fix this issue? Thanks! Bernhard

2 1

Failed to canonicalize path x2dsmahfoud-spool-C _stDXFCE_dp32.mount.d: Permission denied
by Olivier SCHMITT 11 Nov '20

11 Nov '20

Hello dear all, i have install an x2go server with xfce. our home directory are on an nfs server with no root access. In my logs i have some flood like: Nov 11 18:25:41 phiapp systemd[11097]: Failed to canonicalize path /adhome/s/sd/sdiarra/.config/systemd/user/tmp-.x2go\x2dsmahfoud-spool-C\x2dsmahfoud\x2d50\x2d1605115070_stDXFCE_dp32.mount.d: Permission denied Can you say me what's append and what can i desactivate to resolv that? Thanks in advance.

1 0

X2GO server side Disable suspend mode
by Olivier SCHMITT 11 Nov '20

11 Nov '20

Hello Dear x2go users list members, I have a question on a x2go server, how it's possible to disable session suspending, All my users clic on the cross at the top right to quit the session and suddenly it leaves you hanging. I would like to turn off suspend mode. Thanks in advance.

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X2Go server on BSD
by Olivier 11 Nov '20

11 Nov '20

Hi, I am wondering if there are pointers on th way to port X2Go server to BSD Unix. From what I have been pocking around, it is highly dependant on Linux, using tools that are not really standard like ss instead of netstat for example. Poking in the scripts, I have not been able to go very far, so I am wondering if it is worth speding some more time or if it is a lost cause. So far, I have been using a Windows machine as a desktop, with the X terminal X-Win 32. UIt allows me a simple access to my various servers at the click of a button. Since I have changed for an Ubuntu desktop, accessomg the servers is way less simple and less integrated (because Gnome or any window manager that I have tried is grabbing so many key combination that I want to use for something else). But X-Win32 still works in wine and I can port all my Windows environment with little to no change. But I wanted to try a different X solution maybe, hence exploring X2Go. TIA, Olivier --

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A couple of simple questions
by kht-lists 30 Oct '20

30 Oct '20

Recently I installed x2goserver on an Ubuntu Mate 20.04 machine and x2goclient on my CentOS 7 workstation. I configured the session with "[X] Try auto login (via SSH Agend ot default SSH key)" as I have an SSH key installed on the remote machine. It connects fine over my LAN and I find the CPU utilization on the remote machine much lower than with x11vnc which I had been using. Her are my client related questions... 1) What is the CORRECT way to disconnect from the remote machine and leave the remote session (and the programs on it) running? The goal being to be able to check back later on the status of the work which the remote machine is performing. 2) How does one connect to more than one remote machine? I have only been able to do this by loading an additional x2goclient for the next remote machine. This seems to waste a lot of real estate. I explained my adventures in detail on linuxquestions.org but did not receive any advice. https://www.linuxquestions.org/questions/linux-software-2/x2go-how-to-disco… Thanks, Ken I don't have a Swiss bank account but I do have a Swiss email address :-) Sent with [ProtonMail](https://protonmail.com) Secure Email.

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clipboard stopped working (again)
by Norm Green 29 Oct '20

29 Oct '20

Copying from Windows (Thunderbird), attempting to paste into Linux x2go session (xemacs). Here's the clipboard status dump: /----- Clipboard internal status ----- current time (Time) [1896297037] agentClipboardInitialized (Bool) [True] clientAccum (int) [0] nxagentMaxSelections (int) [2] NumCurrentSelections (int) [9] serverWindow (Window) [0x20064b] nxagentLastClipboardClient (int) [-1] Clipboard mode [Both] lastServer lastServerRequestor (Window) [0x0] lastServerProperty (Atom) [ 334][NX_CUT_BUFFER_SERVER] lastServerTarget (Atom) [ 241][UTF8_STRING] lastServerTime (Time) [1896157976] lastClient lastClientWindowPtr (WindowPtr) - lastClientClientPtr (ClientPtr) (null) lastClientRequestor (Window) [0x0] lastClientProperty (Atom) [ 0][(null)] lastClientSelection (Atom) [ 0][(null)] lastClientTarget (Atom) [ 0][(null)] lastClientTime (Time) [0] lastClientReqTime (Time) [0] lastClientPropertySize (unsigned long) [0] lastClientStage (ClientSelectionStage) [0][None] PRIMARY owner is inside nxagent? yes lastSelectionOwner[].client [17] (addr [0x55ca7a3b7460] PID [22152] Cmd [xfce4-terminal]) lastSelectionOwner[].window [0x2200495] lastSelectionOwner[].windowPtr [0x55ca7b717720] ([0x2200495] lastSelectionOwner[].lastTimeChanged [1896275867] lastSelectionOwner[].selection [ 1][PRIMARY] (inside nxagent) CurrentSelections[].client [0x55ca7a3b7460] index [17] PID [22152] Cmd [xfce4-terminal] CurrentSelections[].window [0x2200495] CLIPBOARD owner is inside nxagent? yes lastSelectionOwner[].client [17] (addr [0x55ca7a3b7460] PID [22152] Cmd [xfce4-terminal]) lastSelectionOwner[].window [0x2200495] lastSelectionOwner[].windowPtr [0x55ca7b717720] ([0x2200495] lastSelectionOwner[].lastTimeChanged [1896275869] lastSelectionOwner[].selection [ 326][CLIPBOARD] (inside nxagent) CurrentSelections[].client [0x55ca7a3b7460] index [17] PID [22152] Cmd [xfce4-terminal] CurrentSelections[].window [0x2200495] Atoms (remote X server) serverTARGETS [ 329][TARGETS] serverTIMESTAMP [ 338][TIMESTAMP] serverTEXT [ 335][TEXT] serverCOMPOUND_TEXT [ 328][COMPOUND_TEXT] serverUTF8_STRING [ 241][UTF8_STRING] serverTransToAgentProperty [ 339][NX_CUT_BUFFER_SERVER] serverTransFromAgentProperty [ 334][NX_SELTRANS_FROM_AGENT] serverLastRequestedSelection [ 1][PRIMARY] Atoms (inside nxagent) clientTARGETS [ 75][TARGETS] clientTIMESTAMP [ 80][TIMESTAMP] clientTEXT [ 76][TEXT] clientCOMPOUND_TEXT [ 85][COMPOUND_TEXT] clientUTF8_STRING [ 81][UTF8_STRING] clientCLIPBOARD [ 79][CLIPBOARD] clientCutProperty [ 261][NX_CUT_BUFFER_CLIENT] \------------------------------------------------------------------------------

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Remote VM, accessed via X2GO, receiving input signals over and over again. How to fix this?
by CESAR MURILO DA SILVA JUNIOR 27 Oct '20

27 Oct '20

Hello, When I type 'c', for example, 'ccccccc' comes out. So this is annoying. Should I decrease or increase some settings, on the VM or X2GO? My local station settings: OS Slackware 14.2 RAM 4GB bash-4.3$ glxinfo | egrep -i 'device|memory' Device: Mesa DRI Intel(R) Ivybridge Mobile (0x166) Video memory: 1536MB Unified memory: yes bash-4.3$ lscpu Arquitetura: x86_64 Modo(s) operacional da CPU:32-bit, 64-bit Ordem dos bytes: Little Endian CPU(s): 4 Lista de CPU(s) on-line:0-3 Thread(s) per núcleo 2 Núcleo(s) por soquete:2 Soquete(s): 1 ID de fornecedor: GenuineIntel Família da CPU: 6 Modelo: 58 Nome do modelo: Intel(R) Core(TM) i5-3337U CPU @ 1.80GHz Step: 9 CPU MHz: 2048.132 CPU MHz máx.: 2700,0000 CPU MHz mín.: 800,0000 Wifi Internet Speed: 100Mbps X2GO Session Settings: Desktop XFCE Connection: LAN XFCE 16m-jpeg Image quality 9 800X600 Remote X2GO Server: OS Ubuntu 18.04.4 LTS RAM 65G glxinfo | egrep -i 'device|memory' Device: llvmpipe (LLVM 9.0, 256 bits) (0xffffffff) Video memory: 64374MB Unified memory: no Ethernet Speed: 1Gbps VM remote on X2GO Server: OS Slackware 14.2 RAM 6GB Video Graphic 128MB Best regards *César Murilo da Silva Júnior* *Téc. Oper. Monit. Computadores Help Desk | Redes e Segurança* *UNIPAM - Centro Universitário de Patos de Minas* *T1: 34 3823 0131 | T2: 34 3823 0120 | T3: 34 3823 0356 | C: 34 9 9220 5681* *cesarsj(a)unipam.edu.br <cesarsj(a)unipam.edu.br>* <https://www.unipam.edu.br/index.php/> <https://www.facebook.com/unipam> <https://www.instagram.com/unipamnet/?hl=pt> <https://twitter.com/UNIPAMNET> <https://www.youtube.com/user/CanalUNIPAM> <https://www.linkedin.com/school/centro-universit-rio-de-patos-de-minas---un…> <https://api.whatsapp.com/send?phone=5534999776622>

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"Hardware" related question running x2go in LXC container
by webman＠manfbraun.de 25 Oct '20

25 Oct '20

Hello! I am new to x2go and I try to use x2go server hosted inside a LXC container, which is currently a privileged container. My use is from windows (x2go client). The host and the container are running debian 10. This is basically running. I would be happy to get help with this questions: - how to find, which video driver is in use and what options do I have to NOT access the hosts video and using framebuffer or something like this? - is there something like a virtual sound card? Even the host does not have one and redirecting sound from browser would no really require one, but I do net get sound (I see a pulseaudio running on the windows side)? - the clipboard stops often working and if one uses another session in a second x2go-client, only the last started one will work - is there a trick to restart it and to make it work for two ore more x2go sessions? Any help would be great! Best regards, Manfred

1 0

irc #x2go
by ovt＠zaokknm.ru 23 Oct '20

23 Oct '20

1 0

Main window flash at startup with --hide
by Travis Levin 22 Oct '20

22 Oct '20

When I use the --hide option at the command line, I still see a brief flash of the main window. Is it possible to hide this completely? If not through a command line or registry option, then can the code be modified to prevent this? Thanks, Travis Levin Cell: 469-408-0625

1 0

Methods to speed up start-up and initial handshake
by Travis Levin 21 Oct '20

21 Oct '20

Hello, I have been very impressed with the capabilities of the x2go platform. I would like to optimize the time it takes to startup a session (currently about 18 seconds). Are there settings I should look at to ensure I am getting the minimum startup time? Thanks, Travis Levin

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Black Screen
by Benjamin Colart 21 Oct '20

21 Oct '20

Hello, I successfully installed X2GO and wanted to use it with a mounted /home on CIFS / AD server. The security part (krb, SSSD) is working well, but after the authentication, I have 2 secondes the X2GO windows and the session close itself. If I unmount the /home from the CIFS server, the session is working properly. That setup is working with FastX, but I prefer using X2GO (better perfs and customizations). Someone has an idea? 😊 [cid:image001.png@01D6A78A.EF9B34E0]<http://www.e-peas.com/> Benjamin COLART – IT Manager T:+32 10 77 12 30 - M:+32 474 944 904 Rue Fond Cattelain 1 bte 4 1435 Mont-Saint-Guibert - Belgium This message contains information that may be privileged or confidential and is the property of E-PEAS company. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message.

1 0

Have x2go use Windows 10 default ssh-agent
by Johannes Töger 20 Oct '20

20 Oct '20

Hi, Windows 10 comes with an "OpenSSH Authentication Agent" that manages SSH keys. Once added, the SSH keys are kept in the Windows 10 Credential Storage and encrypted/decrypted with the user login. Documentation here: https://docs.microsoft.com/en-us/windows-server/administration/openssh/open… I was able to use this for ssh in WSL using this github repo: https://github.com/bahamas10/windows-bash-ssh-agent Is it possible to have the Windows x2go client talk to the Windows 10 ssh-agent? I was able to do it using Pageant, but that is less convenient/integrated IMO. By the way: Thanks for a great software package! - Johannes Töger Associate Senior Lecturer Cardiac MR Group Department of Clinical Sciences Lund, Clinical Physiology Lund University, Sweden

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