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Re: [X2Go-Dev] [X2go-User] Suggestion - x2go Community & Core-Dev's should set a date for a Week of Wiki updating/cleanup
by Mike Gabriel 21 Feb '12

21 Feb '12

Hi all, On So 19 Feb 2012 22:56:41 CET Terje Andersen wrote: > Hi Brian, > > Den 19. feb. 2012 17:17, skrev brian mullan: >> I wanted to make a suggestion to the x2go Community. >> >> Everyone knows how fast and how much x2go has been changing in >> regards to features, capabilities, etc. >> >> Like most projects Documentation is hard to keep up with but to >> keep growing the x2go Community as fast in the future as it has in >> the past year or so I'd like to suggest the date for a week of >> focused x2go Wiki updating/cleanup. >> >> For success - it would take the commitment of both the x2go >> Community & the Core-Devs and some planning. By that I mean try >> to come up with ways to impact the core-dev team the least but >> maximize their knowledge of x2go config, install, operation & >> troubleshooting so the Community people can do the actual editing >> of the Wiki. >> >> Ideas: >> >> * identify & input any missing information >> * all the FIX ME place-holders should be addressed >> * incorrect or out of date information should be updated or removed >> * add any new information that just hasn't found time to be posted yet >> > > I think this is a good idea and I would be willing to help out, but > for people like me to able to help out I guess I would need a list > of subjects in advance, that way I could research my allocated > subjects first. I'm fairly new to X2Go; my experience is with FreeNX > so I need to learn X2Go better before writing anything :-) I am willing to proof-read and answer question wherever asked. I would love watching you write the wiki!!! Note, my focus is Git and code maintenance. I would love if someone else takes over the draft writing for documentation. > I'll see if I can find some time to identify some subjects that > either needs updating or new documentation, but where should I place > this list? Could you start a wiki page Brian, where we could > collaborate on the subjects? Please use the FIXME tags of the wiki. There is a page already that refers to all the FIXME tags being placed on wiki pages: http://wiki.x2go.org/fixme-entries Orphaned pages are here: http://wiki.x2go.org/link-orphans The site map is here. http://wiki.x2go.org/wiki:start?do=index When creating new pages, make sure to use namespaces and to feel into the already provided structure. > Regards, > Terje Brian and Terje, could you become the leaders of this documentation sprint and organize everything. That would be awesome. I'll contribute whatever possible and needed. Thanks, Mike PS: I am also cross-posting this to x2go-dev... -- 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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Preferred settings for X2go LAN use
by newsgroups.mail2＠stefanbaur.de 21 Feb '12

21 Feb '12

Hi everyone, any recommendations on what settings I should use in X2go-Client when the server is on the same LAN as the clients, and I want to watch youtube (with Pulseaudio sound) via X2Go? The default settings already look (and sound) promising, but it seems there are a few glitches... and I'm wondering if they are real bugs or just side effects of a less-than-ideal session setting. I'm currently using a 100MBit switched LAN, with the option to upgrade to 1 GBit LAN if that would make a major difference. -Stefan

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Traffic shaping nightmare - missing SSH TOS bits
by John A. Sullivan III 21 Feb '12

21 Feb '12

Hello, all. I've been working on a project to implement traffic shaping to conform to 95th percentile billing including our X2Go virtual desktops. One of the challenges is prioritizing the interactive X2Go traffic (screen, keyboard, mouse) differently from bulk traffic like local share transfers, printing, and possibly sound. I thought this would be trivial because of the SSH transport since SSH sets the minimize-delay bit for interactive traffic and the maximize-throughput bit for bulk transfers. Thus we could distinguish the packets by looking at the TOS bits. This is how the default Linux pfifo_fast qdisc does it anyway. I took a packet trace just to confirm it and, to my horror, I see that we are not setting any of the TOS bits and thus not prioritizing interactive traffic even with the default traffic shaping. I'm guessing this is a casualty of moving to libssh. Is there any way to set the TOS bits for interactive to 0x10, bulk to 0x08 as it is in OpenSSH?. It would be really nice if sound could be configured either way according the the administrator's preference. Unfortunately, I did not see anything in the libssh documentation to show how to do this although I do not claim to understand it. This is a critical issue for any WAN based deployments like ours. Thanks - John

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Re: [X2Go-Dev] Usernames with dashes causes errors?
by Michael Kromer 21 Feb '12

21 Feb '12

> On Tuesday 2012-02-21 12:58, christoffer krakou wrote: > > >We had some strange problems, though. We contacted a school, who > >would help us test the server under daily use, and made some test > >users for them, called "test-*their name*". When they, and i, tried > >to log into those users, the client would freeze, no error message > >or anything. On the server, the x2goagent would run amok, soaking up > >CPU power. The problem seems to occur only on users with dashes in > >their names. > > Hm, and I would have expected for it to be usernames with spaces to > go havoc (those occur esp. in winbind-ed environments), since the > x2go stack has a notorious underquoting of shell variables all over > the place. > > [Exhibit 1] > ./x2goserver_3.0.99.10/x2goserver/bin/x2gostartagent: > OUTPUT=`x2godesktopsharing client $X2GO_CLIENT $X2GO_GEOMETRY $X2GO_LINK > $X2GO_PACK $X2GO_TYPE $X2GO_KBD_LAYOUT $X2GO_KBD_TYPE $X2GO_SET_KBD $X2GO_STYPE > $X2GO_CMD $USER` In fact, x2go assumes use of normal chars in traditional environments (A-z,0-9, with no dashes or spaces) but: This is a good chance to start fix it up, right? - mike

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Font colour in x2goclient in case of dark system theme
by Milan Knížek 20 Feb '12

20 Feb '12

Hello, the x2goclient has hardcoded light appearance for the various widgets (main window, session list, login window, progress of logging in), which does not work well with dark system theme: the white font is not distinquishable from the background. I have checked the Qt documentation and there seems to be more ways on how to accomplish that. So far, I have used three various methods: labelname->setStyleSheet("QLabel { color : black; }"); or cpal.setColor ( QPalette::Text, Qt::black); or QString fonttemplate=("<font color='black'>%1</font>"); nameLabel->setTextFormat ( Qt::RichText ); nameLabel->setText ( fonttemplate.arg( text ) ); which kind of works, though it requires to be written repeatedly throughout the code (sessionbutton.cpp, onmainwindow.cpp, onmainwindow_part4.cpp) for individual widgets and so far I am not able to use a single approach for all widget types (QLabel, QMenu, QPushButton, etc.). The first method seems to be the most general and simplest, however. Is there a way to set application-wide font colour for anything that appears in the widgets, but not in app menu and other windows (Settings, Session Settings, etc.), because these are styled with the system-wide dark theme? Where in the code? P.S. Sorry for possibly stupid question, but since I am not a coder, it is rather a trial & error approach and a lot of googling... Regards, Milan -- http://www.milan-knizek.net/ About linux and photography (Czech only) O linuxu a fotografování

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I18n - how to do it
by Moritz Struebe 20 Feb '12

20 Feb '12

X-Posting to i18n and dev (Please make sure we continue this) Hi there, as i18n is getting more dynamic at the moment, I remembered our discussion from September last year. One of the things we looked at was www.transifex.net. I think we should reconsider looking at this, as it will allow to translate x2go without the need of using git, but using a web interface. And they have an API, as well as a simple client, so we can script the up- and download of translation files. As it is just used as a tool for translation, we take no risks. In the worst case, we can just switch to a different service or go back to the current workflow. Any comments? Cheers Morty -- Dipl.-Ing. Moritz 'Morty' Struebe (Wissenschaftlicher Mitarbeiter) Lehrstuhl für Informatik 4 (Verteilte Systeme und Betriebssysteme) Friedrich-Alexander-Universität Erlangen-Nürnberg Martensstr. 1 91058 Erlangen Tel : +49 9131 85-25419 Fax : +49 9131 85-28732 eMail : struebe(a)informatik.uni-erlangen.de WWW : http://www4.informatik.uni-erlangen.de/~morty

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translating X2Go
by Mike Gabriel 20 Feb '12

20 Feb '12

Hi all, over the weekend Daniel Lindgren and Terje Andersen have added Swedish and Norwegian translations to X2Go Client and Pyhoca-GUI. We have set up a wiki page together that explains how translating X2Go works: http://wiki.x2go.org/wiki:development:i18n The translators communicate on: x2go-i18n(a)lists.berlios.de We currently need help with any language apart from: German Bokmal (Norway) Swedish The following language we have translators for, but the teams could grow here: Dutch Russian Spanish (currently only for PyHoca-GUI) Apart from the named language no other languages are supported within X2Go components. If you are shy with coding but speak a language that is not on the list here (or that is on the bottom list), then do not hesitate to support the i18n team of X2Go. Join the list... http://lists.berlios.de/mailman/listinfo/x2go-i18n ... and start translating X2Go into your regional language!!! Welcome everyone! 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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New major distribution builds available for X2go
by Michael Kromer 20 Feb '12

20 Feb '12

Hi all, as announced previously I have good news: We have a very large set of packages for the following distributions: - openSUSE 12.1 & Factory (12.2) - Fedora 15 - Fedora 16 And now we can say x2go is enterprise-ready: - SLES 11 - RHEL 5 - RHEL 6 At this point I would like to thank Jan Engelhardt - Without him this wouldn't had been possible in such a short period of time. To see the full OBS project please take a look at: https://build.opensuse.org/project/monitor?project=home%3Ajengelh%3Abranche… To add the repositories, please navigate to: http://download.opensuse.org/repositories/home:/jengelh:/branches:/X11:/Rem… The SUSE based packages have been tested and are working great. All distributions have been built to only depend on what is included within the base distro packages. We are _not_ amused by the behaviour like Red Hat works with extended packages they don't want to give support for (like by calling EPEL "a well-maintained" repository [1]). We also must say, that the "modern" versions have been a lot "easier" than the rest, just because of the dependency stuff. All packages have been verified through all kind of (and sometimes also super weird stict) brpchecks and rpmlint checks, so the package format should be fine with about any distro which takes care of clean buildroot-based package building. There has been a lot of effort to generalize the packages to have just one single SPEC-file for on package on all distros. This resulted in various patches we kindly request to get upstream, as we really think these patches are a great enhancement. As a result of what we had as a code base and the build requirements we were not able to provide x2goplasmabindings for the older (enterprise) distributions, for example. Now about what's coming next: - Please test, test, test. Just send us any feedback back to this list, as we really want x2go to work on more than debian/ubuntu. - For the moment we concentrated on the SQLite based stuff, although PostgreSQL should also work - We hope to see some tarballs regarding the plugins which have been created some time ago (http://plugin.x2go.org is offline :() to get them packaged as well. - Looking to get all our patches upstream with X2Go main development (Alex, Heinz-Markus) - Get all packages to the (broke) upstream OBS project X11:RemoteDesktop:x2go Feel free to comment, suggest, whatever - Thanks! Just for the fun - some numbers: Patch sizes (lines): find . -iname "*.diff" | xargs -l1 wc -l | sort -rn 2382 ./nx-libs/unique-libnames.diff 380 ./nx-libs/parallel-make.diff 180 ./nx-libs/honor-ac-dirs.diff 122 ./nx-libs/standard-dirs.diff 102 ./nx-libs/so-version.diff 98 ./nx-libs/use-shared-libs.diff 92 ./x2goserver/man2html.diff 74 ./nx-libs/configure-args.diff 64 ./fdupes/fdupes-sort-output.diff 51 ./vh-man2html/man2html-automake.diff 45 ./fdupes/fdupes.diff 34 ./libssh/remove-pedantic-errors.diff 26 ./x2goclient/protos.diff 24 ./nx-libs/no-x11r6.diff 22 ./x2goserver/parallel-make.diff 22 ./x2goclient/parallel-make.diff 22 ./x2goclient/man2html.diff 22 ./x2goclient/fd729eb-fix-segfault.diff 16 ./x2gognomebindings/implicit.diff 13 ./cmake/cmake-disable-builtin-chrpath.diff Spec sizes (lines): find . -iname "*.spec" | xargs -l1 wc -l | sort -rn 1736 ./nx-libs/nx-libs.spec 250 ./x2gothinclient/x2gothinclient.spec 196 ./x2goserver/x2goserver.spec 148 ./xz/xz.spec 134 ./libssh/libssh.spec 130 ./libcap/libcap.spec 111 ./x2goclient/x2goclient.spec 105 ./libevent/libevent.spec 105 ./cmake/cmake.spec 97 ./cmake/cmake-gui.spec 95 ./perl-DBD-SQLite/perl-DBD-SQLite.spec 88 ./perl-DBI/perl-DBI.spec 82 ./python-x2go/python-x2go.spec 78 ./perl-macros/perl-macros.spec 77 ./x2gognomebindings/x2gognomebindings.spec 76 ./python-greenlet/python-greenlet.spec 76 ./perl-Config-Simple/perl-Config-Simple.spec 71 ./x2godesktopsharing/x2godesktopsharing.spec 71 ./pinentry-x2go/pinentry-x2go.spec 71 ./cups-x2go/cups-x2go.spec 70 ./python-pycrypto/python-pycrypto.spec 68 ./qmake/qmake.spec 68 ./python-distribute/python-distribute.spec 67 ./x2golxdebindings/x2golxdebindings.spec 67 ./python-gevent/python-gevent.spec 66 ./x2goplasmabindings/x2goplasmabindings.spec 62 ./vh-man2html/vh-man2html.spec 61 ./python-paramiko/python-paramiko.spec 61 ./fdupes/fdupes.spec 53 ./eh-man2html/eh-man2html.spec 43 ./makepasswd/makepasswd.spec Best regards, - mike Michael Kromer [1] https://www.redhat.com/archives/spacewalk-devel/2011-October/msg00058.html

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[PATCH] xauth file location mismatch in x2gostartagent
by Milan Knížek 20 Feb '12

20 Feb '12

Hello, the /usr/bin/x2gostartagent script does not sufficiently specify the location of $XAUTHORITY file for the xauth command, while the command line for starting x2goagent refers to a specific location $HOME/.Xauthority. Usually, this works, because if nothing is specified on the command line for xauth and the $XAUTHORITY variable is not defined, it falls back to $HOME/.Xauthority. Nonetheless, recent GDM versions set XAUTHORITY to /var/run/gdm/auth-for-$USER-blabla/database. As a result, when opening a shadow session as another user, /usr/bin/x2gostartagent adds the cookie to $XAUTHORITY (/var/run/gdm...) and then starts x2goagent -auth $HOME/.Xauthority, which fails obviously. The attached patch removes the -f $HOME/.Xauthority parameter from the x2goagent command line to resolve the problem. It also removes a redundant '-S' parameter (there is already $SESSION_TYPE there). Can users of other distributions or display managers test if it does not break something else? (It works on Arch Linux with GDM and Xfce.) Regards, Milan -- http://www.milan-knizek.net/ About linux and photography (Czech only) O linuxu a fotografování

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Several Typos in X2Go-Client, Windows, German
by newsgroups.mail2＠stefanbaur.de 19 Feb '12

19 Feb '12

Just noticed this in the systray icon's pull-down menu: "Wiederhestellen" should be "Wiederhe_r_stellen". Also, in Sitzungsvoreinstellungen/Neue Sitzung/Sitzung/Server: "SSH Port" should be "SSH-Port" "RSA/DSA Schlüssel verwenden" should be "RSA-/DSA-Schlüssel verwenden" In Sitzungsvoreinstellungen/Neue Sitzung/Einstellungen: "Benutze Port Weiterleitung"[...] should be "Benutze Port-Weiterleitung". "DPI Auflösung festlegen" should be "DPI-Auflösung festlegen" or "Auflösung festlegen (in DPI)" And in Sitzungsvoreinstellungen/Neue Sitzung/freigegebene Ordner: "Benutze SSH Port Weiterleitung"[...] should be "Benutze SSH-Port-Weiterleitung". "Desktopverknüpfung erzeugen" shows a message containing the string "ohne das x2goclient". I believe this contains two errors, for one, "das" should be "dass", and the commonly accepted name for the client isn't written in all lowercase, IIRC. You will probably want to call it "X2Goclient", "X2GoClient" or "X2Go-Client". This seems to be an inconsistency in the entire client, though (the title bar says "X2Go client", the first item in the "Help" menu says "X2GO Client", clicking on it shows a message containing "the string X2Go Client"). The same message notes that you can use a GPG key or a GPG smartcard to authenticate when using "hidden mode". It does not mention the SSH public key/ssh-agent methods, even though they work just as well. Or maybe you meant that while calling it a GPG key in the message (I've never used GPG-based authentication, so I'm not sure if it requires a smartcard or not)? Anyways - it should be written as "GPG-Smartcard" and "GPG-Schlüssel" or "SSH-Schlüssel" (depending on which one you meant). Another typo in the same message: "Wollen SIe" should be "Wollen Sie". The same SIe-Sie issue is in the Help/About X2GO Client dialog. Affected client: http://code.x2go.org/releases/binary-win32/x2goclient/x2goclient-3.99.1.0-s… (now renamed to http://code.x2go.org/releases/binary-win32/x2goclient/x2goclient-3.99.1.0pr… by Mike) Kind Regards, Stefan

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