April 2011 - x2go-user - X2Go ListServ

instructions for installing client and server from source
by Andy Tai 24 Apr '11

24 Apr '11

Hi, I am a Fedora user and would like to see if I can get x2go to work on Fedora. The instructions on the web site refers to Debian packages. I wonder are there documents describing how to build and install from source? Thanks -- Andy Tai, atai(a)atai.org, Skype: licheng.tai Year 2011 民國100年自動的精神力是信仰與覺悟自動的行為力是勞動與技能

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X2Go Security Issues
by Provo Kant 24 Apr '11

24 Apr '11

Hallo, hat sich bezüglich http://www.mail-archive.com/x2go-dev@lists.berlios.de/msg01293.html http://www.mail-archive.com/x2go-dev@lists.berlios.de/msg01298.html was getan? - Es gibt bisher keine Security Patches oder Releases?! Nichtmal Vorschläge um das Problem einzugrenzen wurden gemacht... wie z.B. folgender Code für /usr/bin/x2gopgwrapper direkt hinter den Shebang: for var in "$@" do if [[ ! $var =~ ^[A-Za-z0-9/_.-]+$ ]] then echo "blocked" exit 1 fi done

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Re: [X2go-user] PyHoca GUI error
by Mike Gabriel 19 Apr '11

19 Apr '11

Hi Neil, On Di 19 Apr 2011 20:44:12 CEST Neil Hunt wrote: > Mike, see below. I highlighted the line below that may be an issue. It says > that remote x2gousers group is ['administrator'] whereas it should be > "x2gousers", no? The two users I've been testing with are in the group > x2gousers but not administrator. The line you have marked states that the users ['administrator'] (a Python list with one item) are in the server group x2gousers. If this is not the case, please check your setup. > Also, x2goserver is running on Maverick 64 bit. Haven't tried it with natty > yet, but if we can get PyHoca working in general I will start testing Natty > with Unity. Ok. > ---------------------------------------------------------------------------- > pyhoca-gui[24906] (PyHoca-GUI) NOTICE: [Ubuntu KVM desktop - connect error] > An unknown error occured during authentication! > ---------------------------------------------------------------------------- Your problem occurs here... Your authentication fails by some reason... You could start debugging pyhoca-gui... Are you familiar with Git and Python? Greets, Mike -- 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…

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PyHoca GUI error
by Neil Hunt 19 Apr '11

19 Apr '11

Hello, I am trying to connect using the PyHoca GUI running on Ubuntu. I am able to make the connection to the x2go server, however it will not bring up the display. It is using the same .x2go session as I use in the standard x2go Linux client which gets me into my desktop on the x2go server no problem. But when I use the PyHoca client, I get a continuous failure in the /var/log/auth.log: Apr 19 11:29:24 ubuntu-tcs1 sudo: nwhunt : TTY=unknown ; PWD=/home/local/VSTI/nwhunt ; USER=root ; COMMAND=/usr/bin/x2gopgwrapper listsessions ubuntu-tcs1 Just displays over and over again every couple seconds. I am using PyHoca 0.41 (looking forward to 0.42 to try with Ubuntu Unity) Neil

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Re: [X2go-user] Problems
by K. Whitaker 19 Apr '11

19 Apr '11

Hi, I currently have a client using x2go for remotely accessing a debian server. I have played with this for a while and commend all your efforts on such a better remote desktop client for low bandwidth! after serveral attempts I have not been able to find out why the following problems happen and wondered if anyone has an ideas. 1) I cant use multi-window. they use a gnome desktop.. could that be the problem? 2) occasionaly the session crashes. 3) every know and again 1 in for computers slow's right down, and doesnt speed back up. thats why I was considering multi-window, so I can work out which app slowed the server/client down. Kind Regards, -- K. Whitaker Woffleys --------------------------------------------------------------------- 39 Victoria Road | Guiseley | Leeds | West Yorkshire | LS20 8DQ M: 07928924584 E: k.whitaker(a)woffleys.co.uk W: www.woffleys.co.uk

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X2go with Ubuntu 11.04 Natty
by Neil Hunt 13 Apr '11

13 Apr '11

Has anyone had success with this? I downloaded the beta version and it wouldn't display. Since it's not using GNOME but rather Unity, is it expected to be compatible? There are definitely some features in Natty I'd like to start using. Please let me know if you have any tips, or if I can help with any testing. Neil

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Re: [X2go-user] X2go with Ubuntu 11.04 Natty
by Mike Gabriel 13 Apr '11

13 Apr '11

Hi all, On Mi 13 Apr 2011 21:24:37 CEST siziwi wrote: > >> As I have no Natty around the patch was untested. I was not aware of >> unity being already on Wayland... >> >> So I wil remove the patch again and there will not be any unity >> support for X2go (and NX either). >> > No, Ubuntu 11.04 (Natty) will not use Wayland instade of X (if you meant > that) (see here: > http://digitizor.com/2010/11/05/ubuntu-to-ditch-x-for-wayland/) > So X will still be used and therfore network connections are still > possible. (Sorry if I misunderstood you) > Cheers > Simon I am currently downloading a nightly build of natty and try to get it installed for testing. Yes, unity will work on Xorg (I have just also done some reading...), but this might change in Ubuntu o... or Ubuntu p... Greets, Mike -- 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…

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Hooking Up To A Running X-Session
by nospamforaxel-1＠yahoo.de 13 Apr '11

13 Apr '11

Thanks to your explanations things become more clear now. One key statement is this: -snip- > Note again: sitting at computer A and starting an X2go > session on > computer A is currently not possible. -snip- With this I start understanding the concept of X2go. I am about to test the second case but I am not yet there. I'll report when I have some results. Axel

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Re: [X2go-user] Hooking Up To A Running X-Session
by Axel Klein 12 Apr '11

12 Apr '11

Hi Mike, My usecases are: 1) I am working on computer A. Then I change room and want to continue working from computer B on the desktop of computer A. So that would be your case (a). 2) I am working on computer A. I want to show some results on my screen to my colleague in the U.S. or in the next cubical, in any case in the same network. I think that would be exactly your case (b). Summarized you described exactly my usecases. Now the interesting question: How can I do that? Did I overlook something in the Wiki or is there another documentation? Thank you for your patience. Best regards Axel Hi Axel, x2godesktopsharing can be used to (a) view and use (full access) your own desktop session from two or more locations (b) to view someone else's desktop session (view-only mode) As your former posting did not hint to any of the above use cases, I suggest you describe what you want to do with X2go more precisely. There will definitely be a solution for your needs, but I need more details to help. Greets, Mike

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Fwd: Hooking Up To A Running X-Session
by Axel Klein 12 Apr '11

12 Apr '11

Hi *, I have a simple question that I didn't get answered reading the documentation: Is it possible to hook up to an existing X-Session (Desktop) with X2go? And if yes, how to do so? Having tried X2go, I get always a "new" desktop when I logon with the client to the machine on which the server is installed. Sorry for asking this question if this is written in the documentation. I did not find it. Best regards Axel

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Re: [X2go-user] [X2go-dev] 10x printing speed increase for x2go printing
by Mike Gabriel 11 Apr '11

11 Apr '11

Hi Phil, On Mo 11 Apr 2011 10:26:16 CEST "--[ UxBoD ]--" wrote: > Agreed Mike; though I have the feeling it may be less worth than the > effort involved unless somebody knows the internal working of Perl > and SSHFS ? A sleep could be added though I have tried to avoid > slowing down the process to much. Since adding that loop code we > have not experiencing any further failures; though time will tell. I already had a look at the printing code in x2go some time ago. There basically are three components: o cups-x2go o x2goprint o x2goclient If I recall it corrently the interaction between cups-x2go and x2goprint was not optimal then. I guess it was cups-x2go that left over some print job files whenever a print job was sent to the client, but I am not sure anymore. A person that was not in the x2goprint group also created orphaned print jobs in /, because they were not picked up properly by x2goprint. My observations all were a little odd. Whenever I have time, I will take a look at the mechanism and come up with some patches. The x2goprint <-> x2goclient communication is rather simple: x2goprint drops two job files in the spool dir: <job>.pdf and <job>.pdf.ready. The X2go client has to run a thread that watches this spool dir (it's in the x2go session cache folder under ~/.x2go/C-.../spooll). On each incoming print job it has to wake up and take over the task of processing the print job. My Python implementation of this printqueue can be found here (if you prefer Python to Perl for a lecture...): http://code.x2go.org/gitweb?p=python-x2go.git;a=blob;f=x2go/printqueue.py;h… Greets, Mike -- 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…

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PyHoca-GUI win32 bundle installer
by Mike Gabriel 08 Apr '11

08 Apr '11

Hi there, during the last two days Dick and I have created a bundle installer for PyHoca-GUI. The bundle contains: PyHoca-GUI (incl. pulseaudio, nxproxy) VcXsrv 1.10.10.1 Ghostscript 9.01 (32bit) GSView 4.9 (32bit, needed for direct printing support) Check this URL for download: http://code.x2go.org/releases/binary-win32/pyhoca-gui/ For further info, please consult the README.WindowsInstaller in the same folder... Greets, Mike -- 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…

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Latest Debian Packages
by Michael Hierweck 08 Apr '11

08 Apr '11

Hi there, are the 3.0.1-5-Packages (http://x2go.obviously-nice.de/deb/ lenny main) still the latest Debian packages? What about support for Debian Squeeze? Best regards Michael -- EDV-Serviceteam Annika & Michael Hierweck GbR Egerstraße 53, 44225 Dortmund (Germany) http://www.edv-serviceteam.net

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10x printing speed increase for x2go printing
by John A. Sullivan III 08 Apr '11

08 Apr '11

Hello, all. We have been doing battle with major printing issues in X2Go. The two most serious are regularly disappearing print jobs on all platforms and print speed and quality when printing from Windows rdesktop sessions. I do not believe these issues are related to our hacking the x2go printing code to allow a single CUPS print server to service an unlimited number of x2go servers (which we posted around a year ago and need to repost to the wiki). Phil has patched the x2goprint script to fix the disappearing print job problem and will be posting those patches to the dev list shortly. As I believe many do, we use X2Go as a "middleware" for users using remote Windows desktop sessions because that is much faster than directly running RDP on low bandwidth links. The X2Go printers are configured as printers within the Windows desktops. We found we needed to use RAW print queues to do this lest the double pass through the PPD file override some of the user requested formatting (e.g., landscape jobs printing in the default portrait mode). The recommended Windows driver seemed to be the Generic -> Windows Imagesetter driver. However, we received complaints of very slow printing and enormous print jobs which took forever not only to print but just to transmit across the WAN link. The print quality was also seriously degraded (fuzzy to use the users' description). We were able to achieve roughly ten times better performance and dramatically improve quality by switching the Windows driver from Windows ImageSetter to PDFCreator. More details are below. Here are some specifics from our trouble ticket system regarding the ImageSetter print job size: "The user generated a report in Timberline, saved it to PDF, and emailed it. It is 10 pages. I saved it as MamOrig.pdf: 19439 Mar 29 18:24 MamOrig.pdf She then printed one page and sent it to her WinLocalPrinters. When it popped up on her physical desktop, I had her save the file and email it to me. I saved it as MamX2GoOnce.pdf: 402170 Mar 29 18:25 MamX2GoOnce.pdf Note that a single page is 20 times the size of the original 10 page document." We changed the driver to PDFCreator (www.pdfforge.org) and saw almost a tenfold reduction in print times. Here are some hard measures from the trouble ticket: "I did some benchmarks on the changes using the 10 page report the user sent: ImageSetter driver: 3 minutes to start printing, 11 minutes to print all 10 pages PDFCreator driver: 30 seconds to start printing, 1 minute 40 seconds to print all 10 pages" >From another entry: "I printed it using ImageSetter and it took me almost 9 minutes to print. However, when I printed it with PDFCreator, it took just over 1 minutes including the time to send to my local desktop, open in acroread, and print from acroread." So far, we have not encountered any problems from switching to PDFCreator.

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pulseaudio on X2go thin clients
by Mike Gabriel 08 Apr '11

08 Apr '11

Hi all, just a short question... Does the x2goclient on a Linux X2go thin client start a local pulseaudio process (daemon) in the background? Or does the x2gothinclient script bundle thingy have to start a pulseaudio daemon somewhere within its script. My current experience makes me think that there is no pulseaudio daemon started on the thin client. Any hints? Thanks, Mike -- 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…

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Help us with the X2go-Wiki
by Mike Gabriel 07 Apr '11

07 Apr '11

Hi all, many of you have implemented many features and use cases of X2go. This set of brilliant ideas is still not in public and it will be scattered over the internet (in newsgroups archives etc.) or even lost if we do not take our time to bundle this valuable knowledge. So I may ask from you all: Please help us fill or Wiki. May I ask people to become active and help documenting X2go? We are esp. interested in your modifications and adaptations of X2go? Please send a request mail to either of these lists (x2go-user, x2go-dev) to get a Wiki account and your request will be processed ASAP. The developers (Heinz, Alex, Morty, Reinhard, Arw, Mike, ...) are also going to use the wiki more intensively in the future. For the current roadmap you can visit this page: http://wiki.x2go.org/roadmap Looking forward for more collaboration!!! Mike -- 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…

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Status desktop sharing?
by Paul van der Vlis 04 Apr '11

04 Apr '11

Hello, Can somebody tell me what's the status of desktop sharing? Is it not possible at the moment, or is it read-only? With regards, Paul van der Vlis. -- http://www.vandervlis.nl/

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Getting out of fullscreen
by Florian Apolloner 03 Apr '11

03 Apr '11

Hi, is there an option (keybinding) to break out of fullscreen? Thx, Florian Apolloner

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x2go-user April 2011