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2315 discussions

Re: [X2Go-User] X2Go-User Digest, Vol 37, Issue 12
by Nigra Truo 24 Sep '13

24 Sep '13

> I seriously doubt that it would work without any changes. X2go depends on a > lot of X specific black magic, amongst others are nxproxy, which is a way > to compress the X protocol. Android does not run X (as far as I know), so > Android has had X for some time now: https://play.google.com/store/apps/details?id=au.com.darkside.XServer&hl=en nxproxy is not yet there as far as I know. Yes, it might be a lot of work, but a worthy one: lots and lots of devices come with Android. I have wished so many times that I could use it over Android to control my servers. @Mike: Isn't there a functionality that lets you run an quasi app on a webserver that then allows you to use a browser to emulate an X2goclient? I have heard that you did such functionality and that it is finished. That would be the solution: just run a apache webserver and then on Android connect to the webserver with a browser and use X2goclient like this. > you would run into problems there already. Next up would be code to control > when to show an on-screen keyboard, and translating touches on the screen > A hardware keyboard would be a must (bluetooth), as otherwise you will lose all screen real estate to the keyboard. But talking about Android also means Tablets and on a 10 inch Tablet, X2go would be a totally wonderful thing to use. Considering how many devices exist that run Android, the "market" would be huge. You may even be able to charge for the app (like 1 or 2 dollars) as the X2goserver is already free and totally amazing to use. Often, Android users are convenience users, lazier than PC or Laptop users and will preferably shell out some cash before looking around for a free alternative that needs more work. And I would definitely buy it for 1 or 2 dollars, it would be well worth it. (providing a free trial version that is limited to 5 minutes for a session so people can try it out would work great) > to mouse input. To sum it up, I think it would require a lot of work to get > x2go to an even remotely usable state on Android. > You can also connect a mouse to an Android tablet/smartphone by the way. My Gingerbread (2.3) Ice cream Sandwich (4.0) and Jelly Bean (4.2) Android all supported plugging in a mouse and keyboard via USB connector, it just treats it as HID, and simulates it, so you can use the cursor keys to more from app icon to app icon or ESC to go back, as well as getting a mouse pointer to click on stuff. I was amazed how dynamic this works. Anyway, for the short term, the webserver solution should work easier. Regards, Markus

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build x2go client for android
by Lucian Apetre 20 Sep '13

20 Sep '13

Hello, I am new to x2go and i was interested if i can build it on Android. I saw that there are Linu, ios and win client versions but none on Android. Thank you

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Re: [X2Go-User] Session resume fails with AFS home directories
by Sebastian Flothow 18 Sep '13

18 Sep '13

I did some further testing, and the resume failures are indeed due to missing AFS tokens. When suspending a session, the SSH connection is closed, sshd will call pam_close_session(), which means that pam_krb5 and pam_afs_session will delete the user's ticket/token (resp.). The session therefore loses access to the home directory and appears to freeze up, preventing it from being resumed. Both pam_krb5 and pam_afs_session accept retain_after_close as a parameter, which disables the delete-on-close behavior. With this parameter set, it becomes possible to resume sessions, unless the AFS token has expired. This solves at least the case where the user reconnects quickly (eg. after a short network outage), but it still means sessions will become unresumable when left unused for a few days. I guess the only way to avoid this is to not store session data in the home directory. Can X2go be configured such that it uses eg. /tmp or /var/lib for this purpose?

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Mac OS X 10.8.3 x2goclient 4.0.1.x session keyboard input issue
by Paul Freeman 16 Sep '13

16 Sep '13

Hi, I am running the latest x2goclient (4.0.1.x) for Mac OS X (10.8.3) and have noticed an unusual problem relating to keyboard input when starting a configured session for the second time. The first time a session is started, the username and password can be typed but when you exit the session then launch it again (without exiting x2goclient) keyboard keystrokes do not appear in the username and password fields. If you exit x2goclient then start it again it works but only once. In case it helps, I noticed I can paste text into the field. Has anyone else observed this? I have tried using the latest stable release of the X server, XQuartx 2.7.4 and the latest beta release 2.7.5_rc2 with the same results. I did not want to lodge a bug report yet in case it was something particular to my installation or setup. Regards Paul Freeman EML (CHEM) Pty Ltd __________ Information from ESET Smart Security, version of virus signature database 8805 (20130915) __________ The message was checked by ESET Smart Security. http://www.eset.com

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Two factor authentication using Google linux PAM module and Authenticator App
by Paul Freeman 13 Sep '13

13 Sep '13

Hi, I was wondering whether it is possible to implement two factor authentication in X2go? Ie. ssh password based login with the Google two factor authentication Linux PAM module and Google Authenticator App for iOS or Android. Would this be any more secure than using ssh private/public keys? Regards Paul Freeman EML (CHEM) Pty Ltd Australia __________ Information from ESET Smart Security, version of virus signature database 8793 (20130912) __________ The message was checked by ESET Smart Security. http://www.eset.com

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Smart Card Forwarding
by Markus Bräunig 12 Sep '13

12 Sep '13

Hello, I am looking for a solution to provide secure authentication / mail signing etc on a central place, so I researched the actual available OS-Solutions for this task. I have a smart card reader built into the client which I want to use for: - authentication at the Terminal Server - "taking" my smart card with me to authenticate at further destinations (connection is initiated at the Terminal Server). What I found out is, that the upcoming version of nx can do such a thing and the commercial solutions offer also this functionality (Windows only, Citrix, Oracle SDG …) Is it possible with x2go to forward the smart card (reader) to the terminal server in a secure way to use it for further actions? If yes: What do I need for this? Regards Markus

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x2goclient on Windows crashes
by Alejandro Alberola 10 Sep '13

10 Sep '13

Hello, We are trying to run a Java program from x2goclient on Windows in application mode. Using version 4.0.0.3 in Windows XP, x2goclient crashes everytime with the following message: "vcxsrv.exe encountered a problem and needs to close." Using version 4.0.0.3 in Windows 7, it works without any problem. Using the preview version (4.0.1.0-pre02) on Windows XP it works properly most of the time, but sometimes crashes too. Any idea ? Thanks. // --- Alejandro Alberola ---

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Possible problem with printing & newer versions of Adobe Acrobat
by Madog 04 Sep '13

04 Sep '13

Hi All: Has anyone had trouble printing with the newer versions of Adobe acrobat (e.g., "X") with the following symptoms: - connect up to server over ssh from windows (x2go version 4.0.0.3) - open a document from the x2go session and print - on the client, Adobe flashes briefly (if check "Show this dialog before start printing", get the dialog box) - nothing comes out the printer (have tried USB and network printers) As best I can tell, a link is created in the Adobe reader "Open a Recent File" page on the client. If I click on this link in Adobe, I can then open and print the file as long as the x2go session is active. Once I shut down the x2go session, the link no longer works. Also, if I print as a .PDF, the file is generated on the client as a pdf, I can print it, and the file stays on the client. I.e., the print jobs used to go directly to the printer. Currently, I have to "print twice". Not a "hair on fire", but was wondering if there is a way to address this (possibly even in the Adobe settings, but ideally from the server). Does this sound like possibly a change in Acrobat? Or something I need to check on the x2go client or x2go server side? Thanks!

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New feature for next PyHoca-GUI release (0.4.0.9): passphrase protected SSH keys
by Mike Gabriel 03 Sep '13

03 Sep '13

Hi all, today I have added a new (long waited for) feature to PyHoca-GUI. So far, in PyHoca-GUI (python-x2go) it was only possible to use passphrase-protected / encrypted SSH keys via an ssh-agent process that unlocks those keys when being added to the agent's keyring previous to logging into an X2Go Server. Unlocking those keys natively in PyHoca-GUI was not possible so far. -> Now it is!!! The nightly built packages are currently building and the 0.4.0.9 preview of PyHoca-GUI will soon be available for testing this new feature. Within the next couple of days I will add the pendant feature to PyHoca-CLI. Those of you using PyHoca-GUI may test this new feature by encrypting your private key file... $ ssh-keygen -p ... and then using this key file in PyHoca-GUI. Don't add your key(s) to ssh-agent to see the new passphrase dialog pop up. WARNING: Make sure you do not forget the password for unlocking the key, otherwise your key will be lost. It surely is a good idea to make a backup of your SSH key files before playing with this. Greets, Mike -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 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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can't get pulseaudio working on 64bits windows7
by philip van houtte 30 Aug '13

30 Aug '13

I installed x2go client 3.0.0.4 out-of-the-box on a windows 7 64bits PC. Everything works fine but pulseaudio. When I install the same image on a 32bits windows7 PC pulseaudio renders good sound. This is consistent for all 64bit PC's I tried. Anyone has a clue? Thanks, philip

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