x2go-user

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2315 discussions

x2go Broker
by Felix Hosner 08 Jul '14

08 Jul '14

Questions over questions I have installed: apt-get install x2gobroker-daemon Call from the client x2goclient - debug - broker-url = http://10.255.120.23:8080/plain/inifile 8080 mean that a Web service must be running. but x2gobroker-daemon does not have port 8080 open. What do I need to? I enclose my DebugLogs: x2gobroker-daemon-debug 2014-07-05 12:23:08,999 - broker - INFO - X2Go Session Broker (0.0.3.0), 2014-07-05 12:23:09,000 - broker - INFO - written by Mike Gabriel (X2Go Project) <mike.gabriel(a)das-netzwerkteam.de> 2014-07-05 12:23:09,000 - broker - INFO - Setting up the broker's environment... 2014-07-05 12:23:09,000 - broker - INFO - X2GOBROKER_USER: x2gobroker 2014-07-05 12:23:09,000 - broker - INFO - X2GOBROKER_DAEMON_USER: x2gobroker 2014-07-05 12:23:09,000 - broker - INFO - X2GOBROKER_DAEMON_GROUP: x2gobroker 2014-07-05 12:23:09,001 - broker - INFO - X2GOBROKER_DEBUG: True 2014-07-05 12:23:09,001 - broker - INFO - X2GOBROKER_CONFIG: /etc/x2go/x2gobroker.conf 2014-07-05 12:23:09,001 - broker - INFO - X2GOBROKER_AGENT_CMD: /usr/lib/x2go/x2gobroker-agent 2014-07-05 12:23:09,001 - broker - INFO - X2GOBROKER_DEFAULT_BACKEND: inifile 2014-07-05 12:23:09,001 - broker - INFO - X2GOBROKER_AUTHSERVICE_SOCKET: /run/x2gobroker/x2gobroker-authservice.socket 2014-07-05 12:23:09,001 - broker - INFO - X2GOBROKER_SSL_CERTFILE: 2014-07-05 12:23:09,001 - broker - INFO - X2GOBROKER_SSL_KEYFILE: x2goclient --debug --broker-url=http:// <http://localhost:8080/plain/inifile>10.255.120.23 <http://10.255.120.23:8080/plain/inifile>:8080/plain/inifile <http://localhost:8080/plain/inifile> (process:8646): GConf-WARNING **: Client failed to connect to the D-BUS daemon: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. (x2goclient:8646): GConf-WARNING **: Client failed to connect to the D-BUS daemon: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. (x2goclient:8646): GLib-GIO-CRITICAL **: g_dbus_connection_register_object: assertion 'G_IS_DBUS_CONNECTION (connection)' failed (x2goclient:8646): GLib-GIO-CRITICAL **: g_dbus_connection_register_object: assertion 'G_IS_DBUS_CONNECTION (connection)' failed (x2goclient:8646): GLib-GIO-CRITICAL **: g_dbus_connection_get_unique_name: assertion 'G_IS_DBUS_CONNECTION (connection)' failed (x2goclient:8646): GLib-GIO-CRITICAL **: g_dbus_connection_register_object: assertion 'G_IS_DBUS_CONNECTION (connection)' failed (x2goclient:8646): GLib-GIO-CRITICAL **: g_dbus_connection_register_object: assertion 'G_IS_DBUS_CONNECTION (connection)' failed (x2goclient:8646): GLib-GIO-CRITICAL **: g_dbus_connection_get_unique_name: assertion 'G_IS_DBUS_CONNECTION (connection)' failed Qt: Session management error: None of the authentication protocols specified are supported x2go-INFO-1> "Starting x2goclient..." x2go-INFO-4> "Übersetzung: :/x2goclient_de_ch installiert." x2go-INFO-5> "Übersetzung: :/qt_de_CH installiert." Falscher Parameter:--broker-url x2go-INFO-6> "X2Go Client wird geschossen..." Speicherzugriffsfehler (Speicherabzug geschrieben Thanks Felix -- *Notabene: * Die Zukunft soll man nicht voraussehen wollen, sondern möglich machen. Antoine de Saint Exupéry (1900-44), frz. Flieger u. Schriftsteller *Computer Coach GmbH * 3116 Kirchdorf, Thalgutstrasse 10 Tel. 031 782 12 00 Fax 031 782 12 02 fhosner(a)computer-coach.ch www.computer-coach.ch

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Re: [X2Go-User] Minimal distro with login manager
by Jos 08 Jul '14

08 Jul '14

Am 21.02.2014 18:52, schrieb Jos: Hi all, Althoug this topic is some months old, I realy would like to ask Stephan if he could elaborate some more on the >>self updating setup in the background<< from his minimal distro. Is it perhaps similar as the concept used by CoreOS as mentioned under Technical Details on their page,http://coreos.com/using-coreos/updates/ Regards, Jos. Am 21.02.2014 18:52, schrieb Jos: > Thanks for the answer, i am now installing the thinclient package on a > kvm virtual machine. One thing that I noticed on the wiki is this writing: > X2Go TCE requires a local area network (LAN) that is at least switched > at 100MB/s. The X2Go Thin Client chroot distribution is not designed to > work over the internet or on low bandwidth connections > This would mean that the pxe server can only be operated on LAN? >It is possible to PXE/TFTP/HTTP-boot over the internet, using gPXE or >iPXE, but expect it to boot really slow. >Me, I'm using a minimal distro that can either run as a static image >from CD/USB or as a self-updating (it queries the server for a newer >release, downloads it in the background if there is one, then switches >the next reboot to the downloaded copy) image on writable media. >Ccurrently tested and known to work: >- ext2/3 (ext4 will most likely work too) >- vfat >- ntfs >-Stefan

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Re: [X2Go-User] SessionBroker
by Mike Gabriel 03 Jul '14

03 Jul '14

Hi Felix, (re-including the ML). On Do 03 Jul 2014 12:28:29 CEST, Felix Hosner wrote: > Falscher Parameter:--broker-url > x2go-INFO-6> "X2Go Client wird geschossen..." > Speicherzugriffsfehler (Speicherabzug geschrieben) > > Thanks Felix x2goclient --debug --broker-url=http://localhost:8080/plain/inifile An equal sign seems to be important behind --broker-url. Please always reply to x2go-user and not only to my private address. Mike -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

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Re: [X2Go-User] SessionBroker
by Mike Gabriel 03 Jul '14

03 Jul '14

Hi Felix, On Do 03 Jul 2014 11:09:34 CEST, Felix Hosner wrote: > Super - Thanks > > invoke-rc.d x2gobroker-daemon stop > > [....] Stopping X2Go Session Broker standalone daemon: > x2gobroker-daemonstart-stop-daemon: warning: failed to kill 2160: No such > process > > failed! > > - Next step > > x2gobroker-daemon-debug > > Traceback (most recent call last): > > File "/usr/bin/x2gobroker", line 90, in <module> > > import x2gobroker.defaults > > File "/usr/lib/python2.7/dist-packages/x2gobroker/defaults.py", line 178, > in <module> > > X2GOBROKER_HOSTNAME = socket.gethostbyaddr(socket.gethostname())[0] > > socket.gaierror: [Errno -2] Name or service not known Make sure that your hostname resolves to a valid IP(v4 or v6) address. Use /etc/hostname if you don't have a proper DNS setup in your lab. Mike -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

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SessionBroker
by Felix Hosner 03 Jul '14

03 Jul '14

Hi there Questions about the Session Broker: Background: simple Session Broker Daemon x2go Server Ubuntu 14:04 - can be called directly from the client (Terminal works) 1st Question x2gobroker-sessionprofiles.conf if I editable this file, I need to restart a service? 2st Question x2goclient - broker-url = http://10.255.120.23:8080/plain/inifile/ / etc/x2go/x2gobroker.conf as standard out of the box SessionBroker Config: [pool-A server-A] user = visor host = 10.255.120.23:2222 name = GNOME - pool-A (srv-A) command = GNOME rootless = false acl-groups-allow = gnome-users, admins acl-groups-deny = ALL acl-clients deny = ALL acl-clients allow = ALL acl-any-order = deny-allow broker-session-autologin = true What is still missing the SessionBorker flies Thank you for your feedback Felix -- *Notabene: * Die Zukunft soll man nicht voraussehen wollen, sondern möglich machen. Antoine de Saint Exupéry (1900-44), frz. Flieger u. Schriftsteller *Computer Coach GmbH * 3116 Kirchdorf, Thalgutstrasse 10 Tel. 031 782 12 00 Fax 031 782 12 02 fhosner(a)computer-coach.ch www.computer-coach.ch

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screenshots while suspended?
by Matt Cowan 02 Jul '14

02 Jul '14

I'm trying to create a local service which captures status screenshots of a set of monitoring system windows about once a minute. x2go seemed like it was working great to decouple the service from a physical desktop, until I suspended the connection, at which point the screenshots get wonky (mostly just grey with a little strip of actual window contents along one border, or just all grey, or ...). It works fine when x2go is iconified, just not when it's disconnected. Is this a known problem/feature? I imagined Xclients wouldn't be impacted by a session being suspended or connected? thanks. -matt

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Not Working with changes in PAM
by segurah h 02 Jul '14

02 Jul '14

Hi : I was using x2go server and it worked fine until I follow this guide in order to add my linux box (the x2go server) to a Microsoft Active Directory ( https://help.ubuntu.com/community/ActiveDirectoryWinbindHowto ) , now I can't initiate a session from x2goclient to this box but can do perfectly ssh sessions with Unix local users also mircrosoft domains users, export X display works fine. Putting x2go server in debug mode shows : Jul 1 22:04:47 x2goserver /usr/bin/x2golistsessions[17955]: x2golistsessions has been called with no option Jul 1 22:04:48 x2goserver /usr/bin/x2gostartagent: x2gostartagent called with options: 1360x740 lan 16m-jpeg-9 unix-kde-depth_24 es auto 1 D GNOME Jul 1 22:04:48 x2goserver /usr/bin/x2gostartagent: client announced itself as ,,167.134.171.87'' Jul 1 22:04:48 x2goserver /usr/bin/x2gosessionlimit[17977]: x2gosessionlimit has been called Jul 1 22:04:48 x2goserver /usr/bin/x2golistsessions[17980]: x2golistsessions has been called with options: --all-servers Jul 1 22:04:49 x2goserver /usr/lib/x2go/x2gogetdisplays[17994]: db_getdisplays called, server: x2goserver; return value: |55| |56| |57| |58| |59| |60| |61| |62| Jul 1 22:04:49 x2goserver /usr/lib/x2go/x2gogetports[18004]: db_getports called, server: x2goserver; return value: |30001| |30002| |30003| |30004| |30005| |30006| |30007| |30008| |30009| |30010| |30011| |30012| |30013| |30014| |30015| |30016| |30017| |30018| |30019| |30020| |30021| |30022| |30023| |30024| |30025| Jul 1 22:04:49 x2goserver /usr/lib/x2go/x2goinsertsession[18025]: db_insertsession called, session ID: segurah-50-1404268489_stDGNOME_dp24, server: x2goserver, session ID: segurah-50-1404268489_stDGNOME_dp24 Jul 1 22:04:50 x2goserver /usr/lib/x2go/x2goinsertport[18037]: db_insertport called, session ID: segurah-50-1404268489_stDGNOME_dp24, server: x2goserver, SSH port: 30026 Jul 1 22:04:50 x2goserver /usr/lib/x2go/x2goinsertport[18049]: db_insertport called, session ID: segurah-50-1404268489_stDGNOME_dp24, server: x2goserver, SSH port: 30027 Jul 1 22:04:50 x2goserver /usr/lib/x2go/x2goinsertport[18061]: db_insertport called, session ID: segurah-50-1404268489_stDGNOME_dp24, server: x2goserver, SSH port: 30028 Jul 1 22:04:51 x2goserver /usr/bin/x2gofeature: x2gofeature called with options: X2GO_RUN_EXTENSIONS Jul 1 22:04:51 x2goserver /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS Jul 1 22:04:51 x2goserver /usr/bin/x2goserver-run-extensions: x2goserver-run-extensions called with options: segurah-50-1404268489_stDGNOME_dp24 pre-start Jul 1 22:04:51 x2goserver /usr/bin/x2gostartagent: successfully started X2Go agent session with ID segurah-50-1404268489_stDGNOME_dp24 Jul 1 22:04:51 x2goserver /usr/bin/x2gofeature: x2gofeature called with options: X2GO_RUN_EXTENSIONS Jul 1 22:04:51 x2goserver /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS Jul 1 22:04:51 x2goserver /usr/bin/x2goserver-run-extensions: x2goserver-run-extensions called with options: segurah-50-1404268489_stDGNOME_dp24 post-start Jul 1 22:04:51 x2goserver /usr/lib/x2go/x2gocreatesession[18148]: db_createsession called, session ID: segurah-50-1404268489_stDGNOME_dp24, cookie: 6206c4ecb0328f02b7672471414a213c, client: 167.134.171.87, pid: 18115, graphics port: 30026, sound port: 30027, file sharing port: 30028 Jul 1 22:05:53 x2goserver /usr/lib/x2go/x2gochangestatus[18274]: db_changestatus called, session ID: segurah-50-1404268489_stDGNOME_dp24, new status: F Jul 1 22:05:53 x2goserver /usr/sbin/x2gocleansessions[26978]: segurah-50-1404268489_stDGNOME_dp24, pid 18115 does not exist, changing status from R to F Jul 1 22:05:53 x2goserver /usr/sbin/x2gocleansessions[26978]: segurah-50-1404268489_stDGNOME_dp24: unmounting all shares Jul 1 22:05:53 x2goserver /usr/bin/x2goumount-session[18284]: x2goumount-session has been called with options: segurah-50-1404268489_stDGNOME_dp24 Jul 1 22:05:53 x2goserver /usr/bin/x2goumount-session[18284]: db_getdisplay called, session ID: segurah-50-1404268489_stDGNOME_dp24; return value: 50 Jul 1 22:05:53 x2goserver /usr/bin/x2goumount-session[18284]: db_getmounts called, session ID: segurah-50-1404268489_stDGNOME_dp24; return value: Jul 1 22:05:59 x2goserver /usr/lib/x2go/x2golistsessions_sql[18294]: dbsys_deletemounts called, session ID: segurah-50-1404268489_stDGNOME_dp24 Jul 1 22:05:59 x2goserver /usr/lib/x2go/x2golistsessions_sql[18294]: Purging finished session from X2Go db, session ID: segurah-50-1404268489_stDGNOME_dp24 Jul 1 22:05:59 x2goserver /usr/sbin/x2gocleansessions[26978]: segurah-50-1404268489_stDGNOME_dp24 is blocked Jul 1 22:05:59 x2goserver /usr/sbin/x2gocleansessions[26978]: segurah-50-1404268489_stDGNOME_dp24: unmounting all shares Jul 1 22:05:59 x2goserver /usr/bin/x2goumount-session[18306]: x2goumount-session has been called with options: segurah-50-1404268489_stDGNOME_dp24 Jul 1 22:05:59 x2goserver /usr/bin/x2goumount-session[18306]: db_getdisplay called, session ID: segurah-50-1404268489_stDGNOME_dp24; return value: Jul 1 22:05:59 x2goserver /usr/bin/x2goumount-session[18306]: db_getmounts called, session ID: segurah-50-1404268489_stDGNOME_dp24; return value: Also, at the client side (x2goclient), the error is : Error: The remote NX proxy closed the connection Error: Failure negotiating the session in stage '7 Error: Wrong version or invalid session authentication cookie Session: Terminating session at ..... A popup message says : x2go -51 The remote proxy closed the connection while negotiating the session. This may be due to the wrong authentication credentials passed to the server. What do you think that can be happening? I can't understand. Any help? Best regards, Hugo

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Problems staying connected
by Jon Gilbert 02 Jul '14

02 Jul '14

Every time I login it works great for a few seconds, then it just freezes up. I checked the .xsession-x2go-errors and this is what I see: ........................................................................ localuser:bitnami being added to access control list (xfwm4:25785): xfwm4-WARNING **: The display does not support the XComposite extension. (xfwm4:25785): xfwm4-WARNING **: The display does not support the XFixes extension. (xfwm4:25785): xfwm4-WARNING **: Compositing manager disabled. xfdesktop[25791]: starting up (xfce4-settings-helper:25807): xfce4-settings-helper-CRITICAL **: Your XI is too old (1.3) version 1.4 is required. (polkit-gnome-authentication-agent-1:25798): GLib-CRITICAL **: g_variant_new_string: assertion `string != NULL' failed (polkit-gnome-authentication-agent-1:25798): polkit-gnome-1-WARNING **: Failed to register client: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files (xfce4-settings-helper:25807): xfce4-settings-helper-WARNING **: Failed to get the _NET_NUMBER_OF_DESKTOPS property. ........................................................................ If anyone can help that would be great. After three solid days of trying to make x2go actually work, it still doesn't. I'm on a fresh Ubuntu 12.04.4 LTS (GNU/Linux 3.2.0-61-virtual x86_64). Starting from there I did: sudo add-apt-repository ppa:x2go/stable && sudo apt-get update then sudo apt-get install xfce4 xfce4-goodies xfce4-artwork xubuntu-icon-theme firefox x2goserver x2goserver-xsession And that's where I'm at. If there is anything else I should do to make this work that would be great to know. It usually crashes when I try to open up a folder or drag a window around. Sometimes I can't even get that far. Any help is most appreciated... thanks... Jon

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problem getting x2go to work.
by Jon Gilbert 01 Jul '14

01 Jul '14

I have a server set up which is Ubuntu 12.04.4 LTS (GNU/Linux 3.2.0-64-virtual x86_64). I installed ubuntu-desktop as instructed by the x2go wiki. I also did these steps: sudo apt-get install x2goserver sudo apt-get install x2goserver-xsession sudo apt-get install sqlite3 sudo x2godbadmin --createdb I try to connect from the Mac client (tried all the versions) and it always fails. It just hangs at the screen where it's trying to connect. I set the server log level to debug and it just says: Jun 24 00:52:50 <my_ip> /usr/bin/x2golistsessions[32234]: x2golistsessions has been called with no option Jun 24 00:52:50 <my_ip> /usr/bin/x2gostartagent: x2gostartagent called with options: 800x600 isdn 256k-jpeg unix-kde-depth_32 us query 0 D gnome-flashback.sh Jun 24 00:52:50 <my_ip> /usr/bin/x2gostartagent: client announced itself as ,,173.12.186.158'' Jun 24 00:52:50 <my_ip> /usr/bin/x2gosessionlimit[32271]: x2gosessionlimit has been called Jun 24 00:52:50 <my_ip> /usr/bin/x2golistsessions[32274]: x2golistsessions has been called with options: --all-servers Jun 24 00:52:51 <my_ip> /usr/lib/x2go/x2gogetdisplays[32289]: db_getdisplays called, server: <my_ip>; return value: Jun 24 00:52:51 <my_ip> /usr/lib/x2go/x2gogetports[32298]: db_getports called, server: <my_ip>; return value: Jun 24 00:52:52 <my_ip> /usr/lib/x2go/x2gogetdisplays[32342]: db_getdisplays called, server: <my_ip>; return value: Jun 24 00:52:52 <my_ip> /usr/lib/x2go/x2gogetports[32351]: db_getports called, server: <my_ip>; return value: It repeats this over and over as the processor runs at 100% on the server, being hosed by the several x2go processes that seem to be stuck in an infinite loop. You'll notice that it runs gnome-flashback.sh in my command, that's because it doesn't work to connect the normal way either, so I tried the steps outlined in this e-mail from this list: http://lists.x2go.org/pipermail/x2go-user/2014-May/002260.html (I find it annoying that it doesn't work with Gnome 3 according to that e-mail, yet it doesn't mention this incompatibility in a conspicuous way anywhere on the x2go site.) Anyway I followed all the steps 1. through 6. in the above-linked e-mail, to no avail, because it did nothing at all towards making this work. BTW my server is on EC2. Don't know if that matters. And yes, I have Please let me know what is going wrong here and what I can do to fix this. Thanks. BTW I do have the latest version of XQuartz installed as my client, and I did set it up to accept remote connections and all that. The connection gets made no problem; the problem definitely seems to be on the server. Jon

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X2Go crashes X
by James M. Pulver 30 Jun '14

30 Jun '14

When accessing a remote server from the Linux client, we are seeing for one user X errors - X2go doesn't crash...: The issue is that, after xterm window is launched, any attempt to use the keyboard in that xterm causes the xserver to die and the x2go session to terminate. This happens with emacs as well. Both tested while using the icewm-session desktop. The x2go program doesn't crash. The errors in .xsession-errors file are: Window manager warning: Invalid WM_TRANSIENT_FOR window 0x7800011 specified for 0x780000f (X2Go - 61). Window manager warning: Invalid WM_TRANSIENT_FOR window 0x7800011 specified for 0x780000f (X2Go - 71). Window manager warning: Invalid WM_TRANSIENT_FOR window 0x740001f specified for 0x7400626 (Error). Window manager warning: Invalid WM_TRANSIENT_FOR window 0x7800011 specified for 0x780000f (X2Go - 76). Window manager warning: Invalid WM_TRANSIENT_FOR window 0x7800011 specified for 0x780000f (X2Go - 79). And there are core files being generated... if they would help I could post this? Any ideas? -- James Pulver CLASSE Computer Group Cornell University

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