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X2Go release day: x2goserver, x2goclient (adds support for Published Applications)
by Mike Gabriel 04 Apr '12

04 Apr '12

Dear all, The X2Go Project is proud to announce two new X2Go component releases: - x2goserver (3.1.1.0) - x2goclient (3.99.2.0) The new packages will be available in our stable repositories (Debian, Ubuntu) within the next 24h. The windows and Mac OS versions of x2goclient will probably be available tomorrow, as well. (PING: @Mihai, @Oleksandr). The Windows binary may get delay a little longer, as we are currently migrating the Windows development machine to another hoster, so we have to ask for your patience here. Sources and binary releases will be downloadable under this URL as soon as they are provided by the packagers. http://code.x2go.org/releases/ The new X2Go Server and Client versions add X2Go Published Applications support. This feature was sponsored/contracted by Stefan Baur (http://www.baur-itcs.de) The feature allows to export a server-side, user-individual as well as system-wide applications menu to the X2Go Client. We expect this feature to become higly attractive to Linux SaaS providers. Published Applications support will also be available in the next release of PyHoca-GUI, this (and also stabilizing PyHoca-GUI on Windows 7) is currently work in progress, sponsored by Dick Kniep (http://www.lindix.nl) light+love, Mike x2goserver (3.1.1.0-0~x2go1) RELEASE; urgency=low [ Mike Gabriel ] * New upstream version (3.1.1.0): - Syslog warnings have to be named ,,warning'' not ,,warn''. - Add usage output to x2goserver-run-extensions. - Fix syslog output of x2goserver-run-exentions. - Fix x2goserver extension calls in x2goruncommand. - Add feature name ,,X2GO_PUBLISHED_APPLICATIONS''. - Add new command ,,x2gofeaturelist''. This command can be used by X2Go client applications to retrieve a list of server-side supported X2Go features. - Update date and version number in man pages. - Fix race condition between session.log of x2goagent and x2gocleansessions. The old situation was: in cases that x2goagent was not fast enough with appending the new session state to the session.log file, the x2gocleansessions script marked the session as suspended during the session resuming process. - Wait one second for x2goagent to write to session.log before updating the session state from 'S' to 'R' in the X2Go session database. - Add X2Go server script x2gogetstatus. - Add/enable debugging of x2gocleansessions. - Silence error messages if the agent's session.log file is not accessible (e.g. on NFSv4+Krb5-mounted homes). - Improve concurrent database access with session db backend SQLite. * Remove /etc/x2go/applications on package removal if it is a symlink, keep it, if it is a directory. Remove /etc/x2go (if empty after purge) on package purge. * Bump Debian packaging standards version to 3.9.3. * Use dh_link to symlink X11 directories into /etc/x2go. [ Oleksandr Shneyder ] * New upstream version (3.1.1.0): - Support for "published applications". Sponsored by Stefan Baur (http://www.baur-itcs.de) -- Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Wed, 04 Apr 2012 11:41:02 +0200 x2goclient (3.99.2.0-0~x2go1) RELEASE; urgency=low [ Oleksandr Shneyder ] * New upstream version (3.99.2.0): - Support for "published applications". Sponsored by Stefan Baur (http://www.baur-itcs.de) - Command line argument "--session-conf=<file>": path to alternative session config. - Fixed bug "light font colour on light background" by dark colour schema. - Make X2Go system tray icon not transparent. - Replace text on buttons "Application", "Share folder", "Suspend", "Terminate" with icons to fit in dialog window. - Support for SVG icons for published applications - Set "nofocus" policy for tool buttons. - Some improvements when using pgp card. - Setting TCP_NODELAY for sockets on reverse tunnel and ssh session. - Support for category X2Go-Top to display published applications on top of application menu. - Exporting PULSE_CLIENTCONFIG when running published applications. -- Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Wed, 04 Apr 2012 11:52:07 +0200 -- 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… Dear all, The X2Go Project is proud to announce a couple of new X2Go component releases: - x2goserver (3.1.0.1) - nx-libs incl. x2goagent (3.5.0.12) - x2goclient (3.99.1.1) - x2gothinclient (1.0.1.6) All new packages will be available in our stable repositories (Debian, Ubuntu) within the next 24h. The windows and Mac OS versions of x2goclient will probably be available tomorrow, as well. (PING: @Mihai, @Oleksandr). Sources and binary releases will be downloadable under this URL as soon as they are provided by the packagers. http://code.x2go.org/releases/ The new X2Go Server version adds ~/.x2go_logout script support to the server-side of X2Go and fixes the x2goserver-fmbindings Makefile. The NX (redistributed) code tree has received a fix for the main Makefile. Also a patch for building on Mac OS X 10.5 has been included, plus an X2Go related patch by Oleksandr. On top of that, we have fixed installation of libnx-x11 (Debian package) on 64-bit systems with multi-arch support (i.e. Debian wheezy+sid). X2GoClient and X2Go TCE have received some improvements, too. The shutdown button is now fully implemented witin X2GoClient, the x2gothinshutdown package has been dropped. The TCE also received a new and more colourful boot splash. At this point I would like to explicitly thank Mihai Moldovan for investing his time into X2Go Client development on Mac OS X. Mihai has contributed some great patches to the X2Go Client code and has also taken over the building of the Mac OS X binary of X2Go Client (including nx-libs-lite i.e. nxproxy+libxcomp3). The X2Go project--with Mihai on board--is now able to offer the X2Go Client for current Mac OS X versions again. Thanks for that, Mihai!!! light+love, Mike x2goserver (3.1.0.1-0~x2go1) RELEASE; urgency=low * New upstream version (3.1.0.1): - Provide infrastructure for on-logout script calls. - Do only run session cleanup scripts from within x2goruncommand. Dropping them from x2goterminate-session. - Be tolerant against x2go_logout script failures. - Fix Makefile of x2goserver-fmbindings (thanks to Oliver Burger), improve uninstall code in Makefiles. -- Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Wed, 07 Mar 2012 21:05:28 +0100 nx-libs (2:3.5.0.12-0) RELEASE; urgency=low [ Mike Gabriel ] * Update patch: 001_add-main-makefile.full+lite.patch, adapt patch from packaging. Test for Makefiles in subfolders before calling them. Fixes build failure during ,,make distclean'' calls. * Provide temporary workaround for installation on Debian 64bit with multiarch support (via libnx-x11.postinst and .prerm). * Re-introduce proper Xinerama support on non-multiarch systems. [ Mihai Moldovan ] * Add patch: 051_nxcomp_macos105-fdisset.full+lite.patch, work around issue in Mac OS X 10.5 SDK. Pass address of fd_set structs on the stack to the FD_ISSET macro/function, instead of the struct itself. * Update patch: 005_nxcomp_gcc43.full+lite.patch, fix faulty path to nxcomp/Split.cpp. [ Oleksandr Shneyder ] * Add patch: 203_nxagent_disable-rootless-exit.full.patch, add command line argument "-norootlessexit". Usually, nxagent exits after 30 seconds if running in rootless mode and no X-Clients are present. Starting nxagent with option "-norootlessexit" will change this behaviour. -- Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Wed, 07 Mar 2012 20:50:14 +0100 x2goclient (3.99.1.1-0~x2go1) RELEASE; urgency=low [ Oleksandr Shneyder ] * New upstream version (3.99.1.1): - not including <netinet/in.h> on Q_OS_WIN platform. - not updating Xinerama configuration in "fullscreen" mode. - command line argument "--xinerama": use Xinerama by default. - improved support for use in TCE command line argument --thinclient - running without window manager command line argument --haltbt - button to shutdown the thin client - Fix comments in copyright headers. [ Mike Gabriel ] * New upstream version (3.99.1.1): - Update copyright year in about window. Including all translations. - Power button icon: make inner part transparent. Needed for people with a dark GUI theme. - Prettify x2goclient.pro. [ Mihai Moldovan ] * New upstream version (3.99.1.1): - Use the Mac OS X 10.5 SDK instead 10.6 to remain compatible with Leopard. - Add .gitignore file. - The default of a 10 seconds SSH connection timeout is pretty low, especially when using tcp_wrappers with the identd option turned on. Wait for a 60 seconds timeout. - On Mac OS X connect to Xserver via Unix file socket. - Properly set DISPLAY environment variable on Mac OS X. [ Daniel Lindgren ] * New upstream version (3.99.1.1): - Update/improve Swedish translation after testing x2goclient on Windows. -- Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Wed, 07 Mar 2012 20:42:36 +0100 x2gothinclient (1.0.1.6-0~x2go1) RELEASE; urgency=low [ Mike Gabriel ] * New upstream version (1.0.1.6): - Add background image support. - Add new boot splash background image. - New look'n'feel for boot splash menu. * Let x2gothinclient break and replace x2gothinshutdown. * Depend on x2goclient (>= 3.99.1.1). [ Oleksandr Shneyder ] * New upstream version (1.0.1.6): - x2gothinshutdown is removed. - Options --thinclient and --haltbt added to x2gothinclient_sessions. - x2gothinclientd is modified to use x2goclient shutdown button instead of x2gothinshutdown. - gnupg-agent, pinentry-x2go and gpgsm added to "Recommends" section for package x2gothinclient. - Changes in x2gothinclientd, pulseaudio parameter "--exit-idle-time=65535", breaking pulseaudio start command into in to several lines. -- Mike Gabriel <mike.gabriel(a)das-netzwerkteam.de> Wed, 07 Mar 2012 20:47:20 +0100 -- 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… _______________________________________________ X2Go-Announcement mailing list X2Go-Announcement(a)lists.berlios.de https://lists.berlios.de/mailman/listinfo/x2go-announcement

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Writing a systemd service file
by Oliver Burger 04 Apr '12

04 Apr '12

Hi, I'm currently writing a systemd service file for the x2goserver. It still does not work and is work in progress, mostly because of x2gocleansession dies with an error message: Here is the service file: ----------> snip <---------- # this is a systemd service file for starting x2goserver [Unit] Description=x2go - remote desktop server After=syslog.target network.target # [Service] # The process to start is x2gocleansession ExecStart=/usr/bin/x2gocleansession # # perhaps some other things have to be done # don't know yet, let's talk to Colin [Install] WantedBy=multi-user.target ----------> snip <---------- And here is the output I get from systemctl: ----------> snip <---------- [root@beteigeuze ~]# systemctl status x2goserver.service x2goserver.service - x2go - remote desktop server Loaded: loaded (/lib/systemd/system/x2goserver.service; disabled) Active: failed (Result: exit-code) since Wed, 04 Apr 2012 11:27:01 +0200; 8s ago Process: 13781 ExecStart=/usr/bin/x2gocleansession (code=exited, status=203/EXEC) CGroup: name=systemd:/system/x2goserver.service ----------> snip <---------- So x2gocleansession dies with an error code 203. I was talking with our systemd maintainer and he asked me to find out, what this error code means and how to get more information, why it dies. If anyone could help me, I would be greatful. Thanks, Oliver

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NXauth segfaults with new cairo 1.12
by Andreas Radke 03 Apr '12

03 Apr '12

I'm seeing nxserver 3.5.0-x crashing with new cairo 1.12 release with this dmesg entries: Mar 31 14:11:22 workstation64 kernel: nxagent[17639]: segfault at 0 ip 00000000004a8d03 sp 00007fff9bd9a320 error 4 in nxagent[400000+4f4000] Is there any fix known how to track this down? I know Debian and Gentoo users already have new cairo available. -Andy ArchLinux

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PulseAudio 1.1 for Win32
by Mike Gabriel 03 Apr '12

03 Apr '12

Hi all (esp. Alex), I am currently contracted for fixing PyHoca-GUI on Windows 7. While doing that I found that PulseAudio 1.1 is available as Windows binaries: http://www.freedesktop.org/wiki/Software/PulseAudio/Ports/Windows/Support With PyHoca-GUI this seems to be a great improvement. I guess, that we should ship pulseaudio 1.1 with x2goclient, as well (if not already done, sorry for not being up-to-date here). 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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NX3.5 speed degradation
by Eugene San 29 Mar '12

29 Mar '12

Hi all, I want to discuss the subject. Story goes like this: About 6 months, while planning upgrade (Ununtu 11.04->11.10) I've noticed severe degradation in speed of NX sessions. At the time I've decided to wait until LTS release, while being sure issue is related to GUI changes in Ubuntu. Recently I've reviewed the situation with 12.04 and found that problem is still there and related to NX and not to GUI changes in Ubuntu. My guess is that surrounding changes in distribution cause NX agent to misbehave. Overall user experience became unusable even on LAN and localhost connections. Now to the details: 1. Screen redraw operations lags heavily even on local links. Instant (sub 0.5sec) on U10.04, up to 5 seconds on U12.04. 2. Constant screen redraws consume much more traffic. Sub 100kbps on U10.04. 10mbps+ on U12.04 (Creating session with WAN quality settings and reconnecting with LAN, lowers bandwidth to sub 1mbps but picture quality suffers) 3. NX4 on U12.04 is faster 3x (in average) than 3.5 on U10.04. 4. NX3.5 on U12.04 is slower 3x then NX3.5 on U10.04 (some tests are x1000 slower!) 5. Hybrid NX3.5<->NX4 is slow with NX3.5 as server and fast with NX4 as server. Some details: * I've evaluated both 32 and 64 bit platforms. * I've compared fresh Ubuntu 10.04 and 12.04. * Both Nomachine NX binaries and X2GO binaries (ppa:x2go/ppa) were tested. * For reference I've performed NX4 and hybrid NX3.5<->NX4 testing. * Tested several usecases: * Desktop with manual operation of terminal, webbrowser and random GUI application. * Rootless UnixBench in graphics mode. (Note in 64bit test caches NX agent!) * Desktop UnixBench in graphics mode. (Note in 64bit test caches NX agent!) * Rootless Xterm with scrolling text (ls -R /) Please provide your feedbacks.

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A couple odds and ends questions
by senrabdet＠aol.com 26 Mar '12

26 Mar '12

Hi All: A couple of odds and ends questions about which we're hoping to get some help/clarification: 1) Stored Session Data x2go seems to store a fair amount of session data on both the server and the client in the .x2go folder on both. While these are not large folders, is there a concern that they will mount up over time? Are they limited to a specific number of folders and don't grow beyond that? Is this a "not to worry" sort of thing? 2) Restart Client Session from the Server Is it possible to kill and/or restart a specific client session from the server, presumably from the admin account on the server (we understand that this can be done from the client side)? 3) Force Use of Passwords Is there a way in x2go to force use of log in passwords? We're not sure this is a good idea (or maybe one that has some pluses and some minuses), but can it be accomplished? The only way we've found so far is to encrypt the users /home directory, cancel when the connection fails, and then connect when presented with the x2go screen (usually shown after you log out) that allows us to enter a password. Thanks! Ted

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Setting Number of Allowed Connections Per User Account
by senrabdet＠aol.com 26 Mar '12

26 Mar '12

Hi All: We're hoping to set and enable the number of allowed connections/sessions by user and user group in x2go. E.g., we want to limit a user to one session/connection/display at a time: that means from client machine A, if the user A is connected, a connection to his/her account could not be established from client machine B or a second connection couldn't be established from client Machine A. User A, if s/he had second account on the server, however, could start one and only one connection to that second account while running one and only one session to the first account. We think we've seen some posts to this effect involving editing /etc/x2go/x2goserver.conf and /usr/bin/x2gosessionlimit (see http://comments.gmane.org/gmane.linux.terminal-server.x2go.devel/954) We've tried making some of the following types of edits: A) If we edit x2goserver.conf alone, and set either "UserA=1 and/or "UserGroupA=1", we can make multiple connections. When we start another instance of x2go, it shows there is a current session, and when we select "New" in the GUI, a second concurrent session begins. B) If we edit /usr/bin/x2gosessionlimit, and make the following changes and then do a "service x2goserver restart" (not sure if this restart is appropriate or necessary)... Add these lines: if($strlimit <= $scount) { print "LIMIT\n"; exit 0; } Comment out these lines: if($maxlimit <= $scount) { print "$maxlimit\n"; exit 0; } print "$maxlimit\n"; ....and change settings in x2goserver.conf, we got some inconstant results we haven't been able to duplicate, but were along the lines either of a "session limit being exceeded" message even if we had group and/or user limits set to 1 (i.e., we were unable to connect at all), or back to any number of sessions we wanted to start. Can someone suggest a procedure/example of how to do this successfully? Ideally, we'd like the flexibility to limit # of connections/sessions both by user group and individual user. Thanks, Ted

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Re: [X2Go-Dev] [X2Go-User] Fwd: Flash Problems
by John A. Sullivan III 26 Mar '12

26 Mar '12

On Sun, 2012-03-25 at 09:51 -0400, senrabdet(a)aol.com wrote: > Hi All: > > > A quick follow up - we built out a 32 bit instance of Ubuntu Server > 10.4 and re-tested > - on a LAN, the video is pretty good > - on a remote server (over the Internet), the results were like our > 64bit experience....the video stalls and refreshes so slowly it is > pretty unusable. > > > We thought the remote video worked well some time ago, though perhaps > are wrong(?). Are there settings in x2go we should try, possibly on > the compression method? Or any other thoughts? > <snip> Our experience with NX for WAN video have been far less than satisfactory. We are eagerly waiting for SPICE to mature and hope it can be integrated as an alternative to NX into X2Go although I do see that SPICE development is leading toward implementing all the other features of X2Go as well such as sound, file sharing, and printing redirection - John

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Re: [X2Go-Dev] Help with shared folder with postgres backend
by Helmer Teles 19 Mar '12

19 Mar '12

<snip> >On Friday 09 March 2012 11:28:15 Helmer Teles wrote: >Hello, ML >Hello Michael. >I,ve been strugling with a problem with shared folders under x2go. >When there's a problem with a shared folder not unmounting with the postgres >backend you can not mount the share anymore. >Steps to reproduce. >Logon to a x2goserver with a shared folderon the client, next go to that >shared folder ( cd ~/media/disk ) and while you are at that folder at the >unix server logout from the x2go session. >After you logout from x2go the process to ummount will fail because the >resource is mounted. After that you can not mount the share anymore because >the mountpoint is not removed from the x2go_session mounts table. >regards, </snip> Hello ML & Michael. I was at vacations last week. I see that you have responded but somehow i didn't receive your email that was published on the x2gouserML. Have you guys managed to solve the problem? the way i use to solve the problem is to login as the fault user to postgres and do a delete from mounts. On Friday 09 March 2012 11:28:15 Helmer Teles wrote: Hello, ML Hello Michael. I,ve been strugling with a problem with shared folders under x2go. When there's a problem with a shared folder not unmounting with the postgres backend you can not mount the share anymore. Steps to reproduce. Logon to a x2goserver with a shared folderon the client, next go to that shared folder ( cd ~/media/disk ) and while you are at that folder at the unix server logout from the x2go session. After you logout from x2go the process to ummount will fail because the resource is mounted. After that you can not mount the share anymore because the mountpoint is not removed from the x2go_session mounts table. regards, -- Helmer Teles eM@il : helmer[DOT]teles[at] Google Mail Web Page: http://hteles.wordpress.com

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Feedback: Published Applications
by Mike Gabriel 17 Mar '12

17 Mar '12

Hi all, thanks to Stefan we have another puzzle piece for making X2Go the non-plus-ultra solution for people offering Linux-SaaS. There now is a new session mode called ,,Published Applications'', sponsored by Stefan Baur. I have had a quick test look at the functionality, so here is a feedback list, also about other issues that I stumble upon while testing: - I use a dark Qt color theme, with a dark color theme some elements of x2goclient are hardly readable on screen: - session profile cards (right column of the screen= - all buttons (suspend, new, terminate, etc.) - also the button that allows me to launch a published application is not readable on screen with my dark theme - when minimizing x2goclient to systray, I see an icon with transparent background and black contours on a black system tray. Thus, I actually see nothing... - Published applications: Some menu entries have icons, some do not. Where do icons come from? Are they transferred from the server? Or are they used from the client-side file system? - x2goclient is configure _not_ to minimize into the systray. After establishing a published application session I see for buttons in the center of the blue window area of x2goclient. The buttons do not fit in there (they overlap). - Is there a concept for evaluating i18n parts of desktop files? Application links appear in English still. - Alex, whenever we are about to release the new code, we should make a call for translation, so that i18n files are updated with the new version So much from the testing front here... BTW: x2goserver installs and uninstalls/purges fine, I added the code in a rush this lunch time, but it seems to work well. 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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