x2go-user

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2 participants
2322 discussions

Terminating a session of a no longer existent user fails (trying to su forever)
by Holger.Krause＠med.uni-duesseldorf.de 03 Apr '17

03 Apr '17

Dear list, I'm failing to terminate a session of a no longer existing NIS user. Situation ------------- User accounts are imported via NIS by the X2Go server ('lucas'). Home directories are mounted via NFS. Recently, an account ('prakti03') was deleted on the NIS server, and the corresponding home directory purged from the file server, while there was still a X2Go session running on the X2Go server. What I did --------------- root@lucas:~# x2golistsessions_root 31436|prakti03-56-1486112626_stDLXDE_dp32|56|lucas|S|2017-02-03T10:03:46|29549c54420137ca42be3121da1dddb4|10.10.6.48|61014|61015|2017-02-10T15:04:53|prakti03|4674671|61016| root@lucas:~# /usr/bin/x2goterminate-session prakti03-56-1486112626_stDLXDE_dp32 root@lucas:~# echo $? 0 root@lucas:~# x2golistsessions_root 31436|prakti03-56-1486112626_stDLXDE_dp32|56|lucas|S|2017-02-03T10:03:46|29549c54420137ca42be3121da1dddb4|10.10.6.48|61014|61015|2017-02-10T15:04:53|prakti03|4676057|61016| What I observe afterwards -------------------------------------- /var/log/auth.log is flooded with entries like this (roughly 70 blocks per minute): Apr 2 07:00:00 lucas su[9223]: No passwd entry for user 'prakti03' Apr 2 07:00:00 lucas su[9223]: FAILED su for prakti03 by root Apr 2 07:00:00 lucas su[9223]: - ??? root:prakti03 Question: -------------- How can I make X2Go 'terminate the session'? ('Session' in quotation marks, as there are no processes with the user's (numerical) UID running anymore.) Thanks in advance, Holger

2 2

marco: Fatal IO error 104 on X2Go with Fedora 25
by Robert Kudyba 31 Mar '17

31 Mar '17

Is there a better place to report these? Which Bugzilla? For Fedora? Which component? check out the logs: mate-session[20087]: WARNING: Failed to acquire org.gnome.SessionManager Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged. mate-session[20087]: Gtk-CRITICAL: gtk_main_quit: assertion 'main_loops != NULL' failed mate-session[20087]: WARNING: keycode1 not existent mate-session[20087]: WARNING: keycode2 not existent mate-session[20087]: WARNING: GSIdleMonitor: IDLETIME counter not found mate-session[20087]: GLib-GObject-CRITICAL: object GSIdleMonitor 0x56509ee55210 finalized while still in-construction mate-session[20087]: GLib-GObject-CRITICAL: Custom constructor for class GSIdleMonitor returned NULL (which is invalid). Please use GInitable instead. ** (mate-settings-daemon:20336): WARNING **: Failed to acquire org.mate.SettingsDaemon ** (mate-settings-daemon:20336): WARNING **: Could not acquire name Cannot register the panel shell: there is already one running. vmware-user: could not open /proc/fs/vmblock/dev ** (mate-screensaver:20367): WARNING **: screensaver already running in this session SELinux Troubleshooter: Applet requires SELinux be enabled to run. *** ERROR *** TI:07:55:25 TH:0x55ca34e51a60 FI:gpm-manager.c FN:gpm_manager_systemd_inhibit,1784 - Error in dbus - GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: Permission denied Traceback: mate-power-manager(+0x1902f) [0x55ca34b7002f] mate-power-manager(+0x1187e) [0x55ca34b6887e] /lib64/libgobject-2.0.so.0(g_type_create_instance+0x20b) [0x7fb6e807c7fb] /lib64/libgobject-2.0.so.0(+0x1469b) [0x7fb6e805e69b] /lib64/libgobject-2.0.so.0(g_object_newv+0x1dd) [0x7fb6e80600ad] /lib64/libgobject-2.0.so.0(g_object_new+0x104) [0x7fb6e8060864] mate-power-manager(+0x12102) [0x55ca34b69102] mate-power-manager(+0x7c52) [0x55ca34b5ec52] /lib64/libc.so.6(__libc_start_main+0xf1) [0x7fb6e746a401] mate-power-manager(+0x7fca) [0x55ca34b5efca] ** (mate-volume-control-applet:20416): WARNING **: Applet is already running, exiting ** (zeitgeist-datahub:20387): WARNING **: zeitgeist-datahub.vala:226: Unable to get name "org.gnome.zeitgeist.datahub" on the bus! Connection failure: Connection terminated Can't open RFKILL control device: No such file or directory Traceback (most recent call last): File "/usr/lib/blueberry/blueberry-obex-agent.py", line 720, in <module> service.load() File "/usr/lib/blueberry/blueberry-obex-agent.py", line 332, in load self._manager = Manager() File "/usr/lib/blueberry/blueberry-obex-agent.py", line 577, in __init__ if self.__class__.get_interface_version()[0] < 5: File "/usr/lib/blueberry/blueberry-obex-agent.py", line 446, in get_interface_version obj = dbus.SessionBus().get_object('org.bluez.obex', '/') File "/usr/lib64/python2.7/site-packages/dbus/bus.py", line 241, in get_object follow_name_owner_changes=follow_name_owner_changes) File "/usr/lib64/python2.7/site-packages/dbus/proxies.py", line 248, in __init__ self._named_service = conn.activate_name_owner(bus_name) File "/usr/lib64/python2.7/site-packages/dbus/bus.py", line 180, in activate_name_owner self.start_service_by_name(bus_name) File "/usr/lib64/python2.7/site-packages/dbus/bus.py", line 278, in start_service_by_name 'su', (bus_name, flags))) File "/usr/lib64/python2.7/site-packages/dbus/connection.py", line 651, in call_blocking message, timeout) dbus.exceptions.DBusException: org.freedesktop.systemd1.NoSuchUnit: Unit dbus-org.bluez.obex.service not found. Exception AttributeError: "'Manager' object has no attribute '_Base__signals'" in <bound method Manager.__del__ of <__main__.Manager object at 0x7f2ce57fc0a0 (uninitialized at 0x(nil))>> ignored ERROR:dbus.proxies:Introspect error on org.bluez.obex:/: dbus.exceptions.DBusException: org.freedesktop.systemd1.NoSuchUnit: Unit dbus-org.bluez.obex.service not found. abrt-applet: Can't show notification: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying abrt-applet: Can't show notification: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name :1.979 was not provided by any .service files abrt-applet: Can't show notification: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying abrt-applet: Can't show notification: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying mate-session[20087]: WARNING: Child process 29443 was already dead. mate-session[20087]: WARNING: Child process 30408 was already dead. mate-session[20087]: WARNING: Child process 32062 was already dead. mate-session[20087]: WARNING: Child process 909 was already dead. mate-session[20087]: WARNING: Child process 2927 was already dead. mate-session[20087]: WARNING: Child process 3261 was already dead. mate-session[20087]: WARNING: Child process 7274 was already dead. mate-session[20087]: GLib-WARNING: GError set over the top of a previous GError or uninitialized memory. This indicates a bug in someone's code. You must ensure an error is NULL before it's set. The overwriting error message was: Unable to start application: Failed to execute child process "caja" (Remote I/O error) mate-session[20087]: WARNING: Error on restarting session managed app: (null) mate-session[20087]: ******************* START ******************************** mate-session[20087]: Frame 0: mate-session(+0x1a033) [0x56509d71c033] mate-session[20087]: Frame 1: mate-session(+0x1a222) [0x56509d71c222] mate-session[20087]: Frame 2: /lib64/libc.so.6(+0x35990) [0x7f6babcec990] mate-session[20087]: Frame 3: /lib64/libglib-2.0.so.0(g_io_channel_unref+0x9) [0x7f6bac0b9ae9] mate-session[20087]: Frame 4: /lib64/libglib-2.0.so.0(+0x46fde) [0x7f6bac0c3fde] mate-session[20087]: Frame 5: /lib64/libglib-2.0.so.0(g_main_context_dispatch+0x2a0) [0x7f6bac0c6f90] mate-session[20087]: Frame 6: /lib64/libglib-2.0.so.0(+0x4a1d0) [0x7f6bac0c71d0] mate-session[20087]: Frame 7: /lib64/libglib-2.0.so.0(g_main_loop_run+0xc2) [0x7f6bac0c74f2] mate-session[20087]: Frame 8: /lib64/libgtk-3.so.0(gtk_main+0x85) [0x7f6bae0e80d5] mate-session[20087]: Frame 9: mate-session(+0xa91a) [0x56509d70c91a] mate-session[20087]: Frame 10: /lib64/libc.so.6(__libc_start_main+0xf1) [0x7f6babcd7401] mate-session[20087]: Frame 11: mate-session(+0xb12a) [0x56509d70d12a] mate-session[20087]: ******************* END ********************************** Gdk-Message: marco: Fatal IO error 104 (Connection reset by peer) on X server :71.0. from X.org log ------------ Mar 31 13:55:50 ourserver systemd-logind: New session 2270 of user localguy. Mar 31 13:55:53 ourserver /usr/sbin/x2gocleansessions[16410]: localguy-60-1490982952_stDMATE_dp32: state file for this session does not exist: /tmp/.x2go-localguy/C-loca lguy-60-1490982952_stDMATE_dp32/state (this can be ignored during session startups) Mar 31 13:55:54 ourserver /usr/bin/x2gostartagent: successfully started X2Go agent session with ID localguy-60-1490982952_stDMATE_dp32 Mar 31 13:55:55 ourserver /usr/sbin/x2gocleansessions[16410]: localguy-60-1490982952_stDMATE_dp32: state file for this session does not exist: /tmp/.x2go-localguy/C-localguy-60-1490982952_stDMATE_dp32/state (this can be ignored during session startups) Mar 31 13:55:56 ourserver /usr/bin/x2goruncommand: launching session with Xsession-x2go mechanism, using STARTUP="mate-session" Mar 31 13:55:58 ourserver /usr/sbin/x2gocleansessions[16410]: localguy-60-1490982952_stDMATE_dp32: state file for this session does not exist: /tmp/.x2go-localguy/C-localguy-60-1490982952_stDMATE_dp32/state (this can be ignored during session startups) Mar 31 13:56:02 ourserver gnome-keyring-daemon[9324]: couldn't access control socket: /run/user/1000/keyring/control: No such file or directory Mar 31 13:56:02 ourserver mate-session[9088]: WARNING: keycode1 not existent Mar 31 13:56:02 ourserver mate-session[9088]: WARNING: keycode2 not existent Mar 31 13:56:02 ourserver mate-session[9088]: WARNING: GSIdleMonitor: IDLETIME counter not found Mar 31 13:56:02 ourserver mate-session[9088]: GLib-GObject-CRITICAL: object GSIdleMonitor 0x562290e3b120 finalized while still in-construction Mar 31 13:56:02 ourserver mate-session[9088]: GLib-GObject-CRITICAL: Custom constructor for class GSIdleMonitor returned NULL (which is invalid). Please use GInitable instead. Mar 31 13:56:04 ourserver kernel: marco[9335]: segfault at 0 ip 00007f30d12866a7 sp 00007fff599aa478 error 4 in libX11-xcb.so.1.0.0[7f30d1286000+1000] Mar 31 13:56:04 ourserver systemd: Started Process Core Dump (PID 9362/UID 0). Mar 31 13:56:04 ourserver systemd-coredump: Process 9335 (marco) of user 1000 dumped core.#012#012Stack trace of thread 9335:#012#0 0x00007f30d12866a7 XGetXCBConnection (libX11-xcb.so.1)#012#1 0x00007f30d826a1b2 sn_display_new (libstartup-notification-1.so.0)#012#2 0x0000558494823d9f meta_display_open (marco)#012#3 0x000055849481450a main (marco)#012#4 0x00007f30d5ee5401 __libc_start_main (libc.so.6)#012#5 0x000055849481491a _start (marco)#012#012Stack trace of thread 9347:#012#0 0x00007f30d5fc101d poll (libc.so.6)#012#1 0x00007f30d7365166 g_main_context_iterate.isra.24 (libglib-2.0.so.0)#012#2 0x00007f30d736527c g_main_context_iteration (libglib-2.0.so.0)#012#3 0x00007f30c6a10fad dconf_gdbus_worker_thread (libdconfsettings.so)#012#4 0x00007f30d738cb93 g_thread_proxy (libglib-2.0.so.0)#012#5 0x00007f30d54836ca start_thread (libpthread.so.0)#012#6 0x00007f30d5fccf7f __clone (libc.so.6)#012#012Stack trace of thread 9348:#012#0 0x00007f30d5fc101d poll (libc.so.6)#012#1 0x00007f30d7365166 g_main_context_iterate.isra.24 (libglib-2.0.so.0)#012#2 0x00007f30d736527c g_main_context_iteration (libglib-2.0.so.0)#012#3 0x00007f30d73652c1 glib_worker_main (libglib-2.0.so.0)#012#4 0x00007f30d738cb93 g_thread_proxy (libglib-2.0.so.0)#012#5 0x00007f30d54836ca start_thread (libpthread.so.0)#012#6 0x00007f30d5fccf7f __clone (libc.so.6)#012#012Stack trace of thread 9349:#012#0 0x00007f30d5fc101d poll (libc.so.6)#012#1 0x00007f30d7365166 g_main_context_iterate.isra.24 (libglib-2.0.so.0)#012#2 0x00007f30d73654f2 g_main_loop_run (libglib-2.0.so.0)#012#3 0x00007f30d878ca76 gdbus_shared_thread_func (libgio-2.0.so.0)#012#4 0x00007f30d738cb93 g_thread_proxy (libglib-2.0.so.0)#012#5 0x00007f30d54836ca start_thread (libpthread.so.0)#012#6 0x00007f30d5fccf7f __clone (libc.so.6) Mar 31 13:56:05 ourserver kernel: marco[9369]: segfault at 0 ip 00007f430d2676a7 sp 00007ffcfd0139e8 error 4 in libX11-xcb.so.1.0.0[7f430d267000+1000] Mar 31 13:56:05 ourserver systemd: Started Process Core Dump (PID 9375/UID 0). Mar 31 13:56:05 ourserver systemd-coredump: Process 9369 (marco) of user 1000 dumped core.#012#012Stack trace of thread 9369:#012#0 0x00007f430d2676a7 XGetXCBConnection (libX11-xcb.so.1)#012#1 0x00007f431424b1b2 sn_display_new (libstartup-notification-1.so.0)#012#2 0x000055e9d68b3d9f meta_display_open (marco)#012#3 0x000055e9d68a450a main (marco)#012#4 0x00007f4311ec6401 __libc_start_main (libc.so.6)#012#5 0x000055e9d68a491a _start (marco)#012#012Stack trace of thread 9374:#012#0 0x00007f4311fa201d poll (libc.so.6)#012#1 0x00007f431471e055 g_socket_condition_timed_wait (libgio-2.0.so.0)#012#2 0x00007f431471ef7a g_socket_receive_with_timeout (libgio-2.0.so.0)#012#3 0x00007f43147049ac g_input_stream_read (libgio-2.0.so.0)#012#4 0x00007f43146dc0e2 g_buffered_input_stream_real_fill (libgio-2.0.so.0)#012#5 0x00007f43146dcde4 g_buffered_input_stream_fill (libgio-2.0.so.0)#012#6 0x00007f43146e406e g_data_input_stream_read_line (libgio-2.0.so.0)#012#7 0x00007f4314752575 _my_g_data_input_stream_read_line (libgio-2.0.so.0)#012#8 0x00007f4314752acc _g_dbus_auth_run_client (libgio-2.0.so.0)#012#9 0x00007f43147621b6 initable_init (libgio-2.0.so.0)#012#10 0x00007f43147628e1 g_bus_get_sync (libgio-2.0.so.0)#012#11 0x00007f43029f1d98 dconf_gdbus_get_bus_in_worker (libdconfsettings.so)#012#12 0x00007f43029f1e7a dconf_gdbus_method_call (libdconfsettings.so)#012#13 0x00007f43133428e7 g_idle_dispatch (libglib-2.0.so.0)#012#14 0x00007f4313345e52 g_main_context_dispatch (libglib-2.0.so.0)#012#15 0x00007f43133461d0 g_main_context_iterate.isra.24 (libglib-2.0.so.0)#012#16 0x00007f431334627c g_main_context_iteration (libglib-2.0.so.0)#012#17 0x00007f43029f1fad dconf_gdbus_worker_thread (libdconfsettings.so)#012#18 0x00007f431336db93 g_thread_proxy (libglib-2.0.so.0)#012#19 0x00007f43114646ca start_thread (libpthread.so.0)#012#20 0x00007f4311fadf7f __clone (libc.so.6) Mar 31 13:56:07 ourserver dbus-daemon[12493]: [session uid=1000 pid=12493] Activating service name='org.mate.panel.applet.WnckletFactory' requested by ':1.110' (uid=1000 pid=9361 comm="mate-panel ") Mar 31 13:56:07 ourserver journal: unable to create file '/run/user/1201/dconf/user': Permission denied. dconf will not work properly.

1 0

suppress GUI dialog when calling x2goclient --version from subshell
by Seth Galitzer 27 Mar '17

27 Mar '17

I'd like to be able to capture the version of x2goclient in a script and report it back to the user externally. Use case for this would be an external info dialog when running x2goclient in a thin client environment. Bash script would look something like this: #!/bin/bash VER=$(x2goclient --version) echo Your version is $VER The client generates lots of additional info and warning messages to stderr, which I can suppress using grep -v. I can get a clean version number if I call it standalone on the cli: $ x2goclient --version 2>&1 | grep -v x2go When I do this, however, I get "Terminated" added to the output. But as soon as I try to capture the output in a subshell per the first snippet, the client can't get the tty and so opens the GUI About dialog. I've tried using the --hide option, but this doesn't help. I would like to just be able to invoke the client and get just the version number with no additional output. I could just query the OS package manager to get the installed version, but this doesn't give an accurate result if I'm running from a binary I've compiled from source. I'm working on hacking the code to get the result I want, but wonder if there is an easier solution. Any suggestion? Please let me know. Thanks. Seth -- Seth Galitzer Systems Coordinator Computing and Information Sciences Kansas State University http://www.cis.ksu.edu/~sgsax sgsax(a)ksu.edu 785-532-7790

1 0

Frozen x2go session
by Thackeray, Neil L 27 Mar '17

27 Mar '17

I have a user with a frozen x2go session. In the logs I get the following message for the users session: usr/bin/x2gosetkeyboard: Waiting for /home/username/.x2go/C-username-50-1490056089_stDKDE_dp32/keyboard to appear. I'm thinking this might be the problem, but does anyone have any experience with this? I'm thinking I may have to terminate their session, which isn't great since they were crunching data for research. The server version is: x2goagent: 3.5.0.32 x2goserver: 4.0.1.20 x2goserver-extensions: 4.0.1.20 x2goserver-fmbindings: 4.0.1.20 x2goserver-printing: 4.0.1.20 x2goserver-xsession: 4.0.1.20 This is all running on RHEL 6.8. I don't know which client version the user has.

2 1

StrictHostKeyChecking=no
by Ivan Gomez 26 Mar '17

26 Mar '17

Hello, Is there a way to disable Strict Host Key Checking on X2Go client for windows? Thank you, Ivan G.

3 7

Python3-x2go
by brian town 26 Mar '17

26 Mar '17

Is there any port of the python-x2go to be useable by Python3?

4 23

X2 Go Client Android Project?
by Bernard Free 26 Mar '17

26 Mar '17

Hello, I have a question, is there a development planned for an X2go Android client? thank you for your attention Bernard

6 8

Problems reconnecting
by Michael Eager 24 Mar '17

24 Mar '17

I'm using x2goclient v 4.0.5.2 on a Fedora 24 system connecting to a Centos 7 system. When I stop the client and attempt to reconnect, a window pops up saying that there are two sessions, one suspended and one running. If I click on the running session, the client appears to negotiate a connection but does not open a window. Instead it hangs and I have to kill the client. When I run the client again, I see the same two sessions. If I click on the suspended session, it also hangs, but the next time I run the client, both sessions are listed as running. If I select either session and click on terminate, the pop-up window updates to remove the session, but I can't connect. When I restart the client again, both sessions are still there, listed as running. Any suggestions? -- Michael Eager eager(a)eagercon.com 1960 Park Blvd., Palo Alto, CA 94306 650-325-8077

1 1

Continuing issue with resuming session on Windows Client
by Bragg, Richard 23 Mar '17

23 Mar '17

Client : 4.1.0.0 (Qt - 4.8.6) Want to run in full screen but that screen may change on location but issue is that I can start new session fine but resume always goes into a window. If I use Process Explorer I see the vcxsrv process On initial session parameters are as expected -nodecoration -notrayicon -clipboard -screen 0 @.... On resume I see (integrated X) - -multiwindow -notrayicon -clipboard (custom X - vcxsrv) - -screen 0 %wx%h -notrayicon -clipboard Any ideas? Richard Bragg MBCS| Application Analyst | Enterprise Monitoring and Automation | Technology and transformation Virgin Media | Unit C, Wellington Gate, Silverthorne Way, PORTSMOUTH, Hampshire, PO7 7XY M +447967046983 | D +443703 900110 | I 7806402 | E richard.bragg(a)virginmedia.co.uk<mailto:richard.bragg@virginmedia.co.uk> jive profile https://jive.systems.private/people/B0001850 | netcool community https://jive.systems.private/groups/netcool -------------------------------------------------------------------- Save Paper - Do you really need to print this e-mail? Visit www.virginmedia.com for more information, and more fun. This email and any attachments are or may be confidential and legally privileged and are sent solely for the attention of the addressee(s). Virgin Media will never ask for account or financial information via email. If you are in receipt of a suspicious email, please report to www.virginmedia.com/netreport If you have received this email in error, please delete it from your system: its use, disclosure or copying is unauthorised. Statements and opinions expressed in this email may not represent those of Virgin Media. Any representations or commitments in this email are subject to contract. Registered office: Media House, Bartley Wood Business Park, Hook, Hampshire, RG27 9UP Registered in England and Wales with number 2591237

1 0

multiwindow option and resizing an application window
by Dionne, Dennis P 09 Mar '17

09 Mar '17

Hello, I am using X2Go on RHEL 6.7 and I am very pleased with how well it works but I am having an issue when using X2Go with a custom application when I resize the application window. There are hundreds of other applications on our system that have no issue with resizing, it' just this one. This will happen every time I resize the app IF AND ONLY IF I start vcxsrv with "-multiwindow", if I start it any other way (-rootless, -fullscreen, -multimonitor) the app will resize fine. The problem is I then cannot resize the session window (resizing is only available in multiwindow mode apparently?). I am 100% aware that the application in question is at fault, however, it is very old, was produced by another company that will not give me the code and refuses to update it... I am also aware that this may be a VCXSrv issue and I can ask them as well but I was wondering if you all had run across something like this before. If you could give me some background on the differences between multiwindow vs "non-multiwindow" or could explain why multiwindow would fail I'd appreciate it. That may be a question for VCXSrv though. Setup: RHEL 6.7 X2Go Windows Client 4.0.5.1 (Windows 7 64bit) Server 4.0.1.19 Gnome 2.28 Thanks Dennis

3 7

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