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Fwd: X2go-dev Digest, Vol 25, Issue 20
by brian mullan 21 Jan '11

21 Jan '11

Ok VNC's working so you know there is a desktop capability on the server. But VNC's not using either the FreeNX, NoMachine NX or x2go "server". And I don't think you can use the x2go client to try to connect to either a FreeNX or NoMachine NX server so if you were trying to connect to them. What client are you using linux, windows, mac? And on the x2go client did you pick Gnome desktop or KDE to match whichever your server desktop is? Ubuntu would be Gnome by default but x2go defaults to KDE. Since its not working anyway... maybe you should uninstall the x2go server on your ec2 instance then reinstall the x2go server using the instructions found here<http://wiki.x2go.org/installing_x2goserver-one_debian> . Brian ------------------------------ Message: 4 Date: Fri, 21 Jan 2011 09:27:33 +0100 From: jmm <jagermeistermeister(a)gmail.com> To: x2go-dev(a)lists.berlios.de Subject: [X2go-dev] x2go not working on ubuntu 10.10? Message-ID: <4D394375.7090300(a)gmail.com> Content-Type: text/plain; charset="iso-8859-1"; Format="flowed" Hi, I tried to get this working all night, but it seems there is no way to connect to an ubuntu 10.10 installation using x2go (package x2goserver-home). When trying to connect, x2goagent is complaining about not being able to open a display (in the session log). The machine is an Amazon EC2 instance, which has no video card. I suspect this is causing the trouble. I have read it was working on ubuntu 10.04 by the way, as in http://blog.restbackup.com/how-to-use-amazon-ec2-as-your-desktop I also tried freenx, neatx and nxserver (from nomachine), and they all give similar errors. Tightvncserver on the other hand does work, maybe that's not so useful information, but just in case. The server log says: $ cat session.log /usr/bin/x2goagent: line 1: -e: command not found NXAGENT - Version 3.4.0 Copyright (C) 2001, 2007 NoMachine. See http://www.nomachine.com/ for more information. Info: Agent running with pid '3065'. Session: Starting session at 'Fri Jan 21 00:42:15 2011'. Info: Proxy running in server mode with pid '3065'. Info: Waiting for connection from 'localhost' on port '30001'. Info: Accepted connection from '127.0.0.1'. Warning: Connected to remote version 3.2.0 with local version 3.4.0. Info: Connection with remote proxy completed. Info: Using ADSL link parameters 512/24/1/0. Info: Using agent parameters 5000/10/50/0/0. Info: Using cache parameters 4/4096KB/8192KB/8192KB. Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_24'. Info: Using ZLIB data compression 1/1/32. Info: Using ZLIB stream compression 4/4. Info: No suitable cache file found. Info: Listening to X11 connections on display ':50'. Warning: The channel for FD#5 channel ID#1 was not marked as finishing. Error: Aborting session with 'X2goagent: Unable to open display 'nx/nx,options=/home/ubuntu/.x2go/C-ubuntu-50-1295570534_stDGNOME_dp24/options:50''. Session: Aborting session at 'Fri Jan 21 00:42:24 2011'. Session: Session aborted at 'Fri Jan 21 00:42:24 2011'. Warning: Signals were not blocked in process with pid '3065'. Info: Your session has died before reaching an usable state. Info: This can be due to the remote X server refusing access to the client. Info: Please check the authorization provided by your X application. Info: Waiting the cleanup timeout to complete. Client (x2goclient) log says: NXPROXY - Version 3.2.0 Copyright (C) 2001, 2007 NoMachine. See http://www.nomachine.com/ for more information. Info: Proxy running in client mode with pid '7391'. Session: Starting session at 'Fri Jan 21 02:29:02 2011'. Info: Connecting to remote host 'localhost:30001'. Info: Connection to remote proxy 'localhost:30001' established. Warning: Connected to remote version 3.4.0 with local version 3.2.0. Warning: Consider checking http://www.nomachine.com/ for updates. Info: Connection with remote proxy completed. Warning: Unrecognized session type 'unix-kde-depth_24'. Assuming agent session. 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_24'. 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 ':0.0'. Session: Session started at 'Fri Jan 21 02:29:06 2011'. Error: Connection to ':0.0' failed. Error is 111 'Connection refused'.Session: Terminating session at 'Fri Jan 21 02:29:15 2011'. 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 'Fri Jan 21 02:29:15 2011'. I'd really like to try NX, since it appearantly works faster than VNC. Please advice. Kind regards, jmm

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x2go not working on ubuntu 10.10?
by brian mullan 21 Jan '11

21 Jan '11

---------- Forwarded message ---------- From: <x2go-dev-request(a)lists.berlios.de> Date: Fri, Jan 21, 2011 at 3:29 AM Subject: X2go-dev Digest, Vol 25, Issue 19 To: x2go-dev(a)lists.berlios.de Send X2go-dev mailing list submissions to x2go-dev(a)lists.berlios.de Note sure what you are doing but I've got quite a few ubuntu 10.10 servers on amazon that I connect to using x2go. Lack of the video card on those AWS EC2 machines makes no difference in regards to x2go. But you have installed a "desktop" on those AWS instances? If you created an instance from an Ubuntu Server AMI then you would need to *sudo apt-get install ubuntu-desktop* or install some "light" desktop. ------------------------------ Message: 4 Date: Fri, 21 Jan 2011 09:27:33 +0100 From: jmm <jagermeistermeister(a)gmail.com> To: x2go-dev(a)lists.berlios.de Subject: [X2go-dev] x2go not working on ubuntu 10.10? Message-ID: <4D394375.7090300(a)gmail.com> Content-Type: text/plain; charset="iso-8859-1"; Format="flowed" Hi, I tried to get this working all night, but it seems there is no way to connect to an ubuntu 10.10 installation using x2go (package x2goserver-home). When trying to connect, x2goagent is complaining about not being able to open a display (in the session log). The machine is an Amazon EC2 instance, which has no video card. I suspect this is causing the trouble. I have read it was working on ubuntu 10.04 by the way, as in http://blog.restbackup.com/how-to-use-amazon-ec2-as-your-desktop I also tried freenx, neatx and nxserver (from nomachine), and they all give similar errors. Tightvncserver on the other hand does work, maybe that's not so useful information, but just in case. The server log says: $ cat session.log /usr/bin/x2goagent: line 1: -e: command not found NXAGENT - Version 3.4.0 Copyright (C) 2001, 2007 NoMachine. See http://www.nomachine.com/ for more information. Info: Agent running with pid '3065'. Session: Starting session at 'Fri Jan 21 00:42:15 2011'. Info: Proxy running in server mode with pid '3065'. Info: Waiting for connection from 'localhost' on port '30001'. Info: Accepted connection from '127.0.0.1'. Warning: Connected to remote version 3.2.0 with local version 3.4.0. Info: Connection with remote proxy completed. Info: Using ADSL link parameters 512/24/1/0. Info: Using agent parameters 5000/10/50/0/0. Info: Using cache parameters 4/4096KB/8192KB/8192KB. Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_24'. Info: Using ZLIB data compression 1/1/32. Info: Using ZLIB stream compression 4/4. Info: No suitable cache file found. Info: Listening to X11 connections on display ':50'. Warning: The channel for FD#5 channel ID#1 was not marked as finishing. Error: Aborting session with 'X2goagent: Unable to open display 'nx/nx,options=/home/ubuntu/.x2go/C-ubuntu-50-1295570534_stDGNOME_dp24/options:50''. Session: Aborting session at 'Fri Jan 21 00:42:24 2011'. Session: Session aborted at 'Fri Jan 21 00:42:24 2011'. Warning: Signals were not blocked in process with pid '3065'. Info: Your session has died before reaching an usable state. Info: This can be due to the remote X server refusing access to the client. Info: Please check the authorization provided by your X application. Info: Waiting the cleanup timeout to complete. Client (x2goclient) log says: NXPROXY - Version 3.2.0 Copyright (C) 2001, 2007 NoMachine. See http://www.nomachine.com/ for more information. Info: Proxy running in client mode with pid '7391'. Session: Starting session at 'Fri Jan 21 02:29:02 2011'. Info: Connecting to remote host 'localhost:30001'. Info: Connection to remote proxy 'localhost:30001' established. Warning: Connected to remote version 3.4.0 with local version 3.2.0. Warning: Consider checking http://www.nomachine.com/ for updates. Info: Connection with remote proxy completed. Warning: Unrecognized session type 'unix-kde-depth_24'. Assuming agent session. 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_24'. 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 ':0.0'. Session: Session started at 'Fri Jan 21 02:29:06 2011'. Error: Connection to ':0.0' failed. Error is 111 'Connection refused'.Session: Terminating session at 'Fri Jan 21 02:29:15 2011'. 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 'Fri Jan 21 02:29:15 2011'. I'd really like to try NX, since it appearantly works faster than VNC. Please advice. Kind regards, jmm

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New thoughts on Git in progress...
by Mike Gabriel 21 Jan '11

21 Jan '11

Dear x2go-dev folks, I just talked to Heinz on the phone and we have taken your criticism on the current/new Berlios Git into a new course of discussion. Similarly to some of you, our Debian Developer in-spe has had quite some criticism on the current Git structure. To support Debian development and packaging of X2go as best as possible we will discuss a revisioned structure for X2go Git, which will probably also include a change over to another hoster. As this discussion takes place between at least for people, please allow us some time to for the current internal discussion on this topic. There will hopefully be some results around the next weekend... light+love, Mike -- DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419 GnuPG Key ID 0x1943CA5B mail: m.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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VirtualBox or KVM and x2go from Mac
by Florian Effenberger 21 Jan '11

21 Jan '11

Hi, sorry for spamming this list, but I'm in the progress of setting up an internal Document Foundation x2go server. :-) I am having issues when using LXDE as desktop environment to control VirtualBox or KVM (virt-manager) with x2go from Mac. Only some commands seem to work -- if I boot e.g. Ubuntu in the virtual machine, only page up works, but enter and page down to nothing in the graphical GRUB boot menu, so the machine is unusable. I also tried changing the keyboard settings in x2go client, to no avail. The same server works just fine with the x2go client from Windows 7. If I can be of any help in debugging, let me know ;) Florian

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x2go not working on ubuntu 10.10?
by jmm 21 Jan '11

21 Jan '11

Hi, I tried to get this working all night, but it seems there is no way to connect to an ubuntu 10.10 installation using x2go (package x2goserver-home). When trying to connect, x2goagent is complaining about not being able to open a display (in the session log). The machine is an Amazon EC2 instance, which has no video card. I suspect this is causing the trouble. I have read it was working on ubuntu 10.04 by the way, as in http://blog.restbackup.com/how-to-use-amazon-ec2-as-your-desktop I also tried freenx, neatx and nxserver (from nomachine), and they all give similar errors. Tightvncserver on the other hand does work, maybe that's not so useful information, but just in case. The server log says: $ cat session.log /usr/bin/x2goagent: line 1: -e: command not found NXAGENT - Version 3.4.0 Copyright (C) 2001, 2007 NoMachine. See http://www.nomachine.com/ for more information. Info: Agent running with pid '3065'. Session: Starting session at 'Fri Jan 21 00:42:15 2011'. Info: Proxy running in server mode with pid '3065'. Info: Waiting for connection from 'localhost' on port '30001'. Info: Accepted connection from '127.0.0.1'. Warning: Connected to remote version 3.2.0 with local version 3.4.0. Info: Connection with remote proxy completed. Info: Using ADSL link parameters 512/24/1/0. Info: Using agent parameters 5000/10/50/0/0. Info: Using cache parameters 4/4096KB/8192KB/8192KB. Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_24'. Info: Using ZLIB data compression 1/1/32. Info: Using ZLIB stream compression 4/4. Info: No suitable cache file found. Info: Listening to X11 connections on display ':50'. Warning: The channel for FD#5 channel ID#1 was not marked as finishing. Error: Aborting session with 'X2goagent: Unable to open display 'nx/nx,options=/home/ubuntu/.x2go/C-ubuntu-50-1295570534_stDGNOME_dp24/options:50''. Session: Aborting session at 'Fri Jan 21 00:42:24 2011'. Session: Session aborted at 'Fri Jan 21 00:42:24 2011'. Warning: Signals were not blocked in process with pid '3065'. Info: Your session has died before reaching an usable state. Info: This can be due to the remote X server refusing access to the client. Info: Please check the authorization provided by your X application. Info: Waiting the cleanup timeout to complete. Client (x2goclient) log says: NXPROXY - Version 3.2.0 Copyright (C) 2001, 2007 NoMachine. See http://www.nomachine.com/ for more information. Info: Proxy running in client mode with pid '7391'. Session: Starting session at 'Fri Jan 21 02:29:02 2011'. Info: Connecting to remote host 'localhost:30001'. Info: Connection to remote proxy 'localhost:30001' established. Warning: Connected to remote version 3.4.0 with local version 3.2.0. Warning: Consider checking http://www.nomachine.com/ for updates. Info: Connection with remote proxy completed. Warning: Unrecognized session type 'unix-kde-depth_24'. Assuming agent session. 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_24'. 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 ':0.0'. Session: Session started at 'Fri Jan 21 02:29:06 2011'. Error: Connection to ':0.0' failed. Error is 111 'Connection refused'.Session: Terminating session at 'Fri Jan 21 02:29:15 2011'. 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 'Fri Jan 21 02:29:15 2011'. I'd really like to try NX, since it appearantly works faster than VNC. Please advice. Kind regards, jmm

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X2Go Client
by Joachim Langenbach 20 Jan '11

20 Jan '11

Good Afternoon all, I've used X2Go for a while now and have another suggestion to improve the usage of the client. It would be really nice, if the client window will be closed or minimized to tray (Quite easy with Qt) after establishing the connection. The window is more or less useless during the session usage but consumes space at the taskbar. Kind regards, Joachim Langenbach

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PyHoca-GUI for Windows
by Mike Gabriel 19 Jan '11

19 Jan '11

Dear x2go-dev people, here is a short mail to let you know, that there is the first Windows version (packaged by NSIS installer) of PyHoca-GUI. https://svn.das-netzwerkteam.de/x2go/pyhoca-gui/win32-dist/installers/setup… The Windows version has not been tested as much as the Linux version, please do only test it if you have some patience... For runtime errors check the file $INSTDIR\pyhoca-gui.exe.log and if possible report those to me directly. Greetings, Mike PS: There are also new Debian and Ubuntu packages available (pyhoca-gui=0.0.26, python-x2go=0.0.35) on deb http://packages.das-netzwerkteam.de/debian <distname> main deb http://packages.das-netzwerkteam.de/ubuntu <distname> main -- DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419 GnuPG Key ID 0xB588399B mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

1 0

Port conflict when using x2go client och x2go server
by Daniel Lindgren 15 Jan '11

15 Jan '11

Hello. I've run into a problem when using x2go to remote control a server which in turn remote controls another server using x2go, i.e. client_a -> server_a -> server_b. I can create the sessions without problem, but I can't reconnect to server_a if I suspend the session. I get an error message about "the remote proxy closed the connection while negotiating ...". As far as I can see there is a port conflict. Ssh on client_a forwards local port 30001 to/from sshd on port 30001 on server_a, which in turn has an ssh that forwards local port 30001 to/from sshd on port 30001 on server_b. I've worked around it by manually changing SSH_PORT range in /usr/bin/x2gostartagent on server_b to start at 30100 (i.e. a different range than server_a uses). I don''t know the inner workings of all x2go components, but by studying x2goclient-cli I'm guessing that separating port ranges to use when forwarding would solve it permanently; instead of using "30001:localhost:30001" one would use "31001:localhost:30001", thereby separating ssh and sshd ports if they are running on the same machine. Cheers, Daniel

2 1

debian package issues
by Gertjan Halkes 14 Jan '11

14 Jan '11

Hi, After installing the x2goserver-one debian package (and dependencies) from x2go.obviously-nice.de on a completely fresh minimal debian Lenny install, I could not get a session to start. After looking in <home dir>/.x2go/<session name>/session.log I found the reason: /usr/lib/x2go/x2goagent: error while loading shared libraries: libXcomposite.so.1: cannot open shared object file: No such file or directory After installing the libxcomposite1 package everything worked fine. So I guess there is a dependency missing in the x2goagent package. Secondly, I had a problem with the x2gocleansessions script that is run as part of the x2goserver service. It tries to use sudo to execute x2gopgwrapper. However, the sudo program uses the postinst script to set up the default /etc/sudoers file while x2goserver tries to add to the sudoers file in the preinst script. The result is that if sudo is installed as a dependency of x2goserver, the sudoers file _only_ contains the x2go lines, and not the default lines allowing root to do everything through sudo. Hence, root is not allowed to issue the x2gopgwrapper command through sudo. This can probably be repaired by moving the additions to the sudoers file into the postinst script, as this will get executed _after_ sudo is completely set up (sudo will make the default file in postinst as well). Also, you may want to add a separate line allowing root to execute x2gopgwrapper anyway, such that even if root is not allowed to do everything through sudo because the sysadmin for some reason didn't want it, x2go will still function as normal. Regards, Gertjan

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restored pc but x2go is broken
by brian mullan 13 Jan '11

13 Jan '11

I had to restore an linux machine (ubuntu) from backup. However, after the restore x2go is no longer working correctly. Using the x2goclient I try to log into an x2go server machine but the response is almost immediately a message "Finished" and the x2go client session window reappears with the login/password entry fields. If I log-in again x2goclient tells me there is an existing session - so it seems 1st attempt did start the session connection. I know there are some log files I can look at to get a clue what is wrong but I couldn't find any documentation about what logs and where. fyi. I've tried purging the x2goclient and reinstalling but the results are the same - re getting the "Finished" message even though it looks like the session did get established. Any tips/hints to troubleshoot this would be appreciated. Thanks. brian

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