x2go-user August 2021

x2go-user@lists.x2go.org

8 participants
9 discussions

"keyboard did not appear within 30s after agent startup"?
by James Bowery 12 Sep '21

12 Sep '21

Connection started failing. I'm not seeing the problem in the logs. CLIENT LOG 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 '14776'. Session: Starting session at 'Sat Jul 17 23:45:49 2021'. Info: Connecting to remote host 'localhost:32065'. Info: Connection to remote proxy 'localhost:32065' 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 'Sat Jul 17 23:45:53 2021'. Info: Established X server connection. Info: Using shared memory parameters 0/0K. Warning: No data received from remote proxy within 30 seconds. x2go-WARNING-1> English language requested, not loading translator. x2go-WARNING-1> English language requested, not loading translator. SERVER LOG (syslog): Jul 17 23:52:22 ML systemd[1]: Started Session 9 of user jabowery. Jul 17 23:52:27 ML /usr/sbin/x2gocleansessions[1496]: jabowery-51-1626583946_stDXFCE_dp32: state file for this session does not exist: /tmp/.x2go-jabowery/C-jabowery-51-1626583946_stDXFCE_dp32/state (this can be ignored during session startups) Jul 17 23:52:27 ML dbus-daemon[1853]: [session uid=1000 pid=1853] Activating via systemd: service name='org.freedesktop.Tracker1' unit='tracker-store.service' requested by ':1.2' (uid=1000 pid=1844 comm="/usr/libexec/tracker-miner-fs " label="unconfined") Jul 17 23:52:27 ML systemd[1803]: Starting Tracker metadata database store and lookup manager... Jul 17 23:52:27 ML dbus-daemon[1853]: [session uid=1000 pid=1853] Successfully activated service 'org.freedesktop.Tracker1' Jul 17 23:52:27 ML systemd[1803]: Started Tracker metadata database store and lookup manager. Jul 17 23:52:27 ML /usr/bin/x2gostartagent: successfully started X2Go Agent session with ID jabowery-51-1626583946_stDXFCE_dp32 Jul 17 23:52:34 ML /usr/bin/x2goruncommand: launching session with Xsession-x2go mechanism, using STARTUP="xfce4-session" Jul 17 23:52:34 ML /usr/bin/x2goruncommand: dbus wrapper available as /usr/bin/dbus-run-session Jul 17 23:52:35 ML /usr/bin/x2gomountdirs[10480]: successfully mounted jabowery@127.0.0.1:53234/cygdrive/C/Users/jabowery/X2GO~1/S-3D89~1/spool to /tmp/.x2go-jabowery/spool/C-jabowery-51-1626583946_stDXFCE_dp32 Jul 17 23:53:04 ML tracker-store[10388]: OK Jul 17 23:53:04 ML systemd[1803]: tracker-store.service: Succeeded. Jul 17 23:53:04 ML /usr/bin/x2gosetkeyboard: /home/jabowery/.x2go/C-jabowery-51-1626583946_stDXFCE_dp32/keyboard did not appear within 30s after agent startup

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Turn off the computer after the time has elapsed.
by ovt＠zaokknm.ru 24 Aug '21

24 Aug '21

2 2

x2go client using 16% cpu when not connected
by Jason Palmer 17 Aug '21

17 Aug '21

Hi, I noticed that x2go client uses 16% cpu and "high power" when run, even before connecting. When closed, cpu usage stops. This is on Alienware M13 R1, Windows 10. Weirdly the cpu usage shows under the "System" process in task manager. I have run sysinternals from Microsoft, and checked thread addresses that are active under the System processes. The processes are just kernel processes. And weirdly, System only shows as using 8% cpu in sysinternals, but 16% in task manager. Microsoft process monitoring is obviously lacking, unsurprisingly. Anyone else experience this, or have an idea what is going on? No viruses are reported. My hunch based on using this laptop is that the graphics card driver is running some system process when x2go is run, but the whole thing is very mysterious and confusing. Thanks, Jason

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How to access a thin client computer via ssh for administrative tasks?
by ovt＠zaokknm.ru 16 Aug '21

16 Aug '21

1 0

Error binding localhost
by richard lucassen 14 Aug '21

14 Aug '21

I work with x2go for many weeks and regularly put the session in "pause". This normally works well, but sometimes (randomly) I get, when resuming: Unable to create SSH tunnel for X2Go session (NX) startup: Error binding localhost:<port> I cannot find anything about this issue in .xsession-x2go-x2go-errors. There is nothing listening on localhost:<port> as reported and IIRC a new session after a reboot starts with display :50 but apparently it has changed to :51 What can I do to debug this? For the moment I reboot the box (lazy) as all processes are still running. R. -- richard lucassen http://contact.xaq.nl/

1 0

connecting to a just booted machine
by Carlos Alfaro 08 Aug '21

08 Aug '21

Hello and thanks in advance to those who take the time to respond. I tried this before and it doesn't work. I have my x2go client machine and my x2go server. The server ( I have tried POP_Os, Ubuntu, LXLE and Lubuntu) and I am able to install it properly. My problem is that from the client side, I use my firewall to send a WOL pocket to turn on some of the machines which do not stay on 24/7. The ones that are always on I just launch the session and I am in. When I wake up a machine or reboots because of a power outage, I can use a terminal and log on to the machines via ssh. I open the ssh port on the firewall and I can log on just fine. This is the problem, while I can log on to the machine via SSH I can't connect with the x2go client right after the machine boots up. I have to manually walk to the machine and log on by entering my user name and password and then I can connect with the x2go client. This is not a problem in my local lab but it is a problem for the remote machines where there isn't always someone there to log on to the machine so I can then log on using the x2go client. Once logged in, no problem, I can lock the machine, put it to sleep, wake it again with WOL and log on with the x2go client again and again. Any suggestions as to where I can look at or what configuration setting to add or change so I can launch as session and get the log on screen of the server? Thanks again Charlie

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Browsers (Firefox, chrome) stopped working in x2go sessions in CentOS7
by Grigory Shamov 04 Aug '21

04 Aug '21

Hi All, We had a problem , for a while now, that browsers do not work under x2go in our CentOS 7 servers. I think it started somewhere in Cent 7.6 and definitely stays on now in CentOS 7.9. The browser starts , but cannot create any child processes. So, no tabs, windows, or pages ever gets opened. Has anyone met this issue? What would be a way to troubleshoot it? Thank you very much in advance! -- Grigory Shamov WestGrid Site Lead / HPC Specialist University of Manitoba

2 1

Session not starting with Python 3 on Windows
by Tomáš Cerha 02 Aug '21

02 Aug '21

Dear list, I am using the X2Go Python API to develop a custom UI for running our applications from Windows and Linux client machines. We are now migrating to Python 3. The client now works on Linux in Python 2 and 3 and on Windows in Python 2. I, however, can’t get it to work in Python 3 on Windows. I see that the official PyHoca GUI for Windows is still Python 2.7 so I am curious what is the current state of X2Go migration to Python 3 and whether there are some known issues. Some details of my particular problem: I am trying to start xterm (for testing) from Windows on a Linux server. My client starts the X2Go session, starts nxproxy, but the xterm window doesn’t appear. The client’s log looks like this: pytis2go[8736] (x2goclient-pylib) DEBUG: command for new session is: xterm pytis2go[8736] (x2gocontrolsession-pylib) DEBUG: executing command on X2Go server ,,xterm Python 3'': echo X2GODATABEGIN:dfa49ff9-eec5-11eb-80a1-080027e6e559; PATH=/usr/local/bin:/usr/bin:/bin sh -c "echo"; echo X2GODATAEND:dfa49ff9-eec5-11eb-80a1-080027e6e559 pytis2go[8736] (x2goguardian-pylib) DEBUG: Entering X2Go Guardian client management loop... pytis2go[8736] (x2goproxy-pylib) DEBUG: NX3 Proxy mode is server, cookie=2532ea9e54c10c087472bb500e715d1d, host=127.0.0.1, port=52113. pytis2go[8736] (x2goproxy-pylib) DEBUG: NX3 proxy writes session log to C:\Users\IEUser\.x2go\S-cerha-50-1627381881_stRxterm_dp32\session.log. pytis2go[8736] (x2goproxy-pylib) DEBUG: forking threaded subprocess: C:\pytis2go\win_apps\nxproxy\nxproxy.exe -S nx/nx,options=\..\S-cerha-50-1627381881_stRxterm_dp32\options:50 pytis2go[8736] (x2goproxy-pylib) DEBUG: waiting for proxy to come up: 0.4s x 1 pytis2go[8736] (x2goproxy-pylib) DEBUG: waiting for port fw tunnel to come up: 0.5s x 1 pytis2go[8736] (x2goguardian-pylib) DEBUG: Entering X2Go Guardian client management loop... The session.log at this time contains: 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 '9596'. Session: Starting session at 'Tue Jul 27 03:32:06 2021'. Info: Connecting to remote host '127.0.0.1:52113'. Info: Connection to remote proxy '127.0.0.1:52113' established. If I kill the client after some time when “nothing happens”, the session.log contains these additional lines: Error: The remote NX proxy closed the connection. Warning: Couldn't start '/bin/true'. Error is 2 'No such file or directory'. Warning: Trying with path '/usr/NX/bin:/opt/NX/bin:/usr/local/NX/bin:.:/cygdrive/c/pytis2go/venv/p2go3/Scripts:/cygdrive/c/Windows/system32:/cygdrive/c/Windows:/cygdrive/c/Windows/System32/Wbem:/cygdrive/c/Windows/System32/WindowsPowerShell/v1.0:/cygdrive/c/Windows/System32/OpenSSH:/cygdrive/c/ProgramData/chocolatey/bin:/cygdrive/c/Program Files/Puppet Labs/Puppet/bin:/cygdrive/c/Users/IEUser/AppData/Local/Microsoft/WindowsApps'. Error: Failure negotiating the session in stage '7'. Error: Wrong version or invalid session authentication cookie. Session: Terminating session at 'Tue Jul 27 03:33:16 2021'. Session: Session terminated at 'Tue Jul 27 03:33:16 2021'. Warning: Couldn't start 'nxclient'. Error is 2 'No such file or directory'. Warning: Trying with path '/usr/NX/bin:/opt/NX/bin:/usr/local/NX/bin:.:/usr/NX/bin:/opt/NX/bin:/usr/local/NX/bin:.:/cygdrive/c/pytis2go/venv/p2go3/Scripts:/cygdrive/c/Windows/system32:/cygdrive/c/Windows:/cygdrive/c/Windows/System32/Wbem:/cygdrive/c/Windows/System32/WindowsPowerShell/v1.0:/cygdrive/c/Windows/System32/OpenSSH:/cygdrive/c/ProgramData/chocolatey/bin:/cygdrive/c/Program Files/Puppet Labs/Puppet/bin:/cygdrive/c/Users/IEUser/AppData/Local/Microsoft/WindowsApps'. The “options” file in the session directory contains: nx/nx,retry=5,composite=1,connect=127.0.0.1,clipboard=1,cookie=2532ea9e54c10c087472bb500e715d1d,port=52113,errors=.\..\S-cerha-50-1627381881_stRxterm_dp32\session.err:50 I suppose that nxproxy.exe can not depend on the currently active Python version, so the problem should be on the x2go Python library side. Does anyone have any idea how to proceed? What to check or how to further debug it? Thank you for any idea. Best regards Tomáš Cerha

2 3

x2go crashing in windows 10
by Matthew Ayres 02 Aug '21

02 Aug '21

Hello, I have several users that are running x2go on windows to connect to linux boxes x2go starts the connection and then fails during the authentication client side windows logs Faulting application name: x2goclient.exe, version: 0.0.0.0, time stamp: 0x057066f0 Faulting module name: ntdll.dll, version: 10.0.19041.1110, time stamp: 0x8a32a22a Exception code: 0xc0000005 Fault offset: 0x00087450 Faulting process id: 0x2844 Faulting application start time: 0x01d77cb8dca4b874 Faulting application path: C:\Program Files (x86)\x2goclient\x2goclient.exe Faulting module path: C:\Windows\SYSTEM32\ntdll.dll Report Id: dd2d29ec-2d9f-4f2e-aa0a-95d0bfee1663 Faulting package full name: Faulting package-relative application ID:

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x2go-user August 2021