x2go-user

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Using Encrypted Home & Passwords
by senrabdet＠aol.com 14 Mar '12

14 Mar '12

Hi All: We're experimenting with a couple of things: 1) Using x2go Encrypted Home partitions. 2) Requiring use of a log in password in addition to SSH keys. Q: 1) There seems to be some merit in requiring a login password in addition to an ssh key. While it is nice to be able to connect without a password, if a windows laptop is compromised or stolen (and we realize nothing is foolproof), can't someone steal the key have have full access to a user's account? Requiring the user to enter a password at login seems to start to address this. What do people think? Would this be an enhanced, "yes that makes" sense sort of approach? Other, better approaches (would prefer not to require fobs or physical key devices). 2) We haven't been able by changing settings is sshd_config to force a password request - is that something we'd do in creating the ssh keys? We are using Ubuntu Server 10.4 and have seen some things on Google searches that suggest OpenSSH actually doesn't allow you to force the use of a password.... 3) If we encrypted the home partition, the x2go connection fails but then we can connect by entering the login password. We can get around this by creating a link to a folder outside of the encrypted partition with the authorized_key, but are know starting to think maybe we want to require the password for login. Is there a way to go right to the x2go "Loginin" screen (the one you get is you show enter a path to ssh keys) so when a user starts the Windows Client, they see that screen to enter a log in password? Thanks, Ted

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Re: [X2Go-User] [X2Go-Dev] OT: Error/Bug: Arrow keys on keyboard are mismapped
by christoffer krakou 12 Mar '12

12 Mar '12

Thanks morty, that did solve my problem. Still, when i set the client to auto-detect, it dosnt find the right keymap. I could probably triage this on my server somehow, but it dosnt seem to be the right way of doing things On 03/12/2012 12:00 PM, Moritz Struebe wrote: > Please check the x2go users mailing list for questions like this. > > Anyway: First try running setxkbmap, and when that does not solve the > problem and you are using Gnome "metacity --replace" might solve the > problem. > > Cheers > Morty > > On 2012-03-12 11:49, christoffer krakou wrote: >> Hello x2go-team and the rest >> >> I'm having a problem on my x2goserver, where the arrow keys seems to >> be mismatched. For example, the downwards arrow key seems to be mapped >> as enter instead. None of the arrowkeys work properly. The keymap in >> question is "Keyboard layout da, keyboard model pc105/da" >> >> I'm using ubuntu 11.10 64bit on the server side. x2goversions says: >> cups-x2go: 3.0.0.4 >> x2goserver: 3.1.0.0 >> x2goserver-extensions: 3.1.0.0 >> >> Client is the latest stable release, also on Ubuntu 11.10 64 bit. If >> someone can tell me how to go about it, i would love to do more tests >> to see excactly how the keys are mismatched, and what keys in particular > > > > > _______________________________________________ > X2Go-Dev mailing list > X2Go-Dev(a)lists.berlios.de > https://lists.berlios.de/mailman/listinfo/x2go-dev -- Venlig Hilsen / Best Regards Christoffer Krakou Fleten.net APS

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Composite extension
by Ralph Sikau 09 Mar '12

09 Mar '12

Hi, we connect to a gnome session on a x2go host. This gnome session has cairo-dock installed which unfortunately cannot make use of the composite function included in metacity for real transparency. When I start xcompmgr it says "no composite extension". The x2go windows client uses vcxsrv which is supposed to be even opengl capable. Where is the handicap here? Best, Ralph

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Fwd: thinclient image and automounting usb-devices
by brian mullan 09 Mar '12

09 Mar '12

Stefan Not sure if this is of any help but have you heard of or tried USB over IP: http://usbip.sourceforge.net/ here's a guide for doing it with ubuntu: http://www.howtoforge.com/how-to-set-up-a-usb-over-ip-server-and-client-wit… Could the x2go-server or x2go-client machine be configured to use this to solve your thin-client usb mounting problem? Brian

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Composite extension
by Ralph Sikau 09 Mar '12

09 Mar '12

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Re: [X2Go-User] install live squeeze usb-hdd with 3.x kernel
by Stefan 09 Mar '12

09 Mar '12

sorry, this is gone to the wrong list ;-) Am Thursday 08 March 2012 schrieb Stefan: > Am Wednesday 07 March 2012 schrieb Ben Armstrong: > > I'm not sure if your response is what the user was looking for, as it > > appeared to be about installing, but there is a possibility that > > 'install' was a red herring and your advice is more along the lines of > > what he was looking for. However ... > > yes, after my mail I was thinking about the same. > > > On 07/03/12 06:40 AM, Stefan wrote: > > > you have to enable the backport-sources in the config: > > Please do not advise users to change variables in the config files. > > Those are not meant to be directly changed. You should always use 'lb > > config' instead. It is sufficient to say: > > > > $ lb config --backports true > > Ok. I got used to edit some configurations direclty - because it seems to > be more quickly. So thanks for clearing that the lb config should be the > preferred way. > > > > _______________________________________________ > X2Go-User mailing list > X2Go-User(a)lists.berlios.de > https://lists.berlios.de/mailman/listinfo/x2go-user

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NX lib path issue prevents Xubuntu 11.10 sessions from starting
by Benjamin Shadwick 09 Mar '12

09 Mar '12

I'm using Xubuntu 11.10 and can no longer login after upgrading to a recent stable version of x2goserver. I tried changing my session to open a Terminal instead of starting an X session, then tried to start the X session from the Terminal prompt, and got the following error message: xscreensaver: error while loading shared libraries: libNX_Xext.so.6: cannot open shared object file: No such file or directory xfce4-session: error while loading shared libraries: libNX_Xext.so.6: cannot open shared object file: No such file or directory My LD_LIBRARY_PATH was set to just /usr/lib/nx/X11/Xinerama but libNX_Xext.so.6 was in /usr/lib/nx/X11 I added /usr/lib/nx/X11 to LD_LIBRARY_PATH, and that seemed to get things working again. Since I am already using a script to set some environment variables in order to get a Xubuntu desktop instead of a plain XFCE one, I just added the LD_LIBRARY_PATH fix to that for now.

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Re: [X2Go-User] install live squeeze usb-hdd with 3.x kernel
by Stefan 08 Mar '12

08 Mar '12

Am Wednesday 07 March 2012 schrieb Ben Armstrong: > I'm not sure if your response is what the user was looking for, as it > appeared to be about installing, but there is a possibility that > 'install' was a red herring and your advice is more along the lines of > what he was looking for. However ... yes, after my mail I was thinking about the same. > On 07/03/12 06:40 AM, Stefan wrote: > > you have to enable the backport-sources in the config: > Please do not advise users to change variables in the config files. > Those are not meant to be directly changed. You should always use 'lb > config' instead. It is sufficient to say: > > $ lb config --backports true Ok. I got used to edit some configurations direclty - because it seems to be more quickly. So thanks for clearing that the lb config should be the preferred way.

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thinclient image and automounting usb-devices
by brian mullan 08 Mar '12

08 Mar '12

Stefan If you can configure your thin-client to boot off of USB ... 1. create a 1 or 2 GB USB stick configured to auto-boot into linux and some locked down user account 2. create the network configuration setup the thin-client will use 3. start x2goclient 4. create a new "session" 5. pre-configure the USB x2goclient with 1 Session, your various 'settings/preferences' like desktop-type, local printing, connection speed etc 6. don't enter any user ID into the USB x2goclient 7. exit the x2go client 8. configure x2goclient to be auto-run at boot 9. pre-configure the USB Linux wireless/ethernet info Shutdown the USB linux and the USB should contain a template you can make copies of. Hand out USB's to students at Registration or leave in the Thin-Clients. I've talked to some USB manufacturers and if you buy in bulk they will even pre-copy/load your USBs for you and in most cases, imprint the USB with a school mascot/banner etc. They above becomes sort of like an x2go client kiosk setup. When the thin-clients boots and network is established the x2go login screen should be presented and they will be able to log into your x2goserver and get a desktop. I've done this and its quite easy. One other benefit is that if the x2goserver at the school is setup right to provide a public IP (with security) the students could take the USB Sticks home and if they have Internet at home and a PC/laptop/netbook etc that can boot from USB then... the student can boot off their USB stick, login to their school x2go server and continue with their desktop & school work as if they'd never left the school. First question is "what if the kid loses the USB"... - anyone finding it would still not have the user ID and password to gain access to the school's x2goserver and the student's desktop. - also, since 1-2 GB USBs are so cheap now they can just be a "throw-away" expense. - Security, you can encrypt the USB, there's no user information or documents etc. ever stored on the USB itself, etc. Just an idea. by the way for 1GB USB's they are now about $2.95 each with Free Logo, 100 Piece Minimum. Brian On 03/07/2012 11:29 AM, Stefan wrote: Hi all, we plan to set up an x2go-server in a school, where people should have access to with laptops throught wlan. The laptops will have dual-boot systems an one of them should be a minimal setup with x2goclient (thinclient-image) and wlan access. It would be nice doing usb-automounting in the image - like the ltsp-thinclient environment does. They should behave thin-client like - only that they can't boot through pxe because of wlan. (For the desktops we still use ltsp - because of features like local apps and automounging ...) So users should not have to open a desktop-environment, starting x2goclient and mount local devices manualy. Are there any common approaches? Is automounting working in the tce of x2go? Thanks for your ideas. stefan

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cups-x2go problem printing multiple copies from windows terminal server. Fix inside ( i guess )
by Helmer Teles 08 Mar '12

08 Mar '12

Hello, ML. I've found a bug when i try to print multiple copies from a Windows Terminal Server to x2go-printer if the document has only one page, it only prints one copy. Strangely this does not happen if the document has more than one page. How to reproduce Open a x2go-session, open Freerdp to a windows terminal server, write a new Word Document with only one page. Now print the document with more than 1 copy. Steps to correct it: I've changed the line in /usr/lib/cups/backend/cups-x2go to: # PS2PDF command my $ps2pdf = "/usr/bin/gs -q -dCompatibilityLevel=1.4 -dNOPAUSE -dBATCH - dSAFER -sDEVICE=pdfwrite -sOutputFile=\"%s.pdf\" -dAutoRotatePages=/PageByPage -dAutoFilterColorImages=false -dColorImageFilter=/FlateEncode - dPDFSETTINGS=/printer -dDoNumCopies -c .setpdfwrite -f \"%s\""; FROM: # PS2PDF command my $ps2pdf = "/usr/bin/gs -q -dCompatibilityLevel=1.4 -dNOPAUSE -dBATCH - dSAFER -sDEVICE=pdfwrite -sOutputFile=\"%s.pdf\" -dAutoRotatePages=/PageByPage -dAutoFilterColorImages=false -dColorImageFilter=/FlateEncode - dPDFSETTINGS=/prepress -c .setpdfwrite -f \"%s\""; -- Helmer Teles eM@il : helmer{DOT}teles[AT] google Email Web Page: http://hteles.wordpress.com

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