x2go-dev October 2009

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14 participants
23 discussions

Remote sound/remote USB device access
by Michael Hierweck 02 Nov '09

02 Nov '09

Hi x2go folks, first of all - is there a user mailinglist available? If have just successfully setup x2go on a Debian Lenny based server and a set of diskless remote booting thin clients. (I talked about "hacking" Debian's boot process merging a read-only nfs filesystem and tmpfs in order to easily remote boot x2go clients some months ago.) Nevertheless remote sound and remote USB device access refuses to work. Is there a piece of documentation/howto on this topic? E.g. does pulseaudio has to be installed, enabled as daemon on the server/client side? Howto test, debug...? Do remote sound/USB device access require any configuration on the server/client side? Thanks in advance Michael

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General question´s
by Sauron99＠gmx.de 02 Nov '09

02 Nov '09

Hi, > Hmm, I know this problem. But I thought the bug was repaired. Are you > using the latest version? In the past I did this: > > vi /usr/bin/x2gostartagent > Direct after "x2goagent" on line 171 I've added "-dpi 96". > ------- > 171c171 > < LD_LIBRARY_PATH=$X2GO_LIB x2goagent -$SESSION_TYPE -geometry > ${X2GO_GEOMETRY} -name "X2GO-${SESSION_NAME}" ${NX_AGENT} > 2>${SESSION_DIR}/session.log & > --- > > LD_LIBRARY_PATH=$X2GO_LIB x2goagent -dpi 96 -$SESSION_TYPE -geometry > ${X2GO_GEOMETRY} -name "X2GO-${SESSION_NAME}" ${NX_AGENT} > 2>${SESSION_DIR}/session.log & > 184c184 > -------- Yes of course Im always up to date with my Debian :). I could fix the Problem with your solution. Hopefully it´s been done in the next release. > I have experiences with older versions of Nomachine NXlcient with FreeNX > what also uses NX, and my experience is that bigger moving things like > films will not be nice shown. But maybe NX has become better on this > point. > Maybe it will be better in the future or is it sure? Where do I find the NX version X2GO is using? Will there be newer versions in the near future? > Flash gives another problem (with older NX). Sometimes customers are > calling me that everything is very slow in the session. Other sessions > on the same server don't have that problem. This is always a flash > problem. I ask them to close all browser windows and the problem is > gone. They had a site with some flash open. > > Another point about flash: I have heard that it uses much CPU on the > server. I have also heard that the (beta) 64-bit version is better then > the 32-bit version on this point. > Hmh I hope that Flash and Java will work fine because it´s really necessary for Schools to watch video´s and Java Animations´s online. But first I have to get sound working. I have tried it yesterday with the GTK X2goclient but Gnome won´t play any sound at all. It just says that there is no Audio device in my machine and that´s it. Do I have to install pulseaudio or any other Packages manually? Greetings -- GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT! Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01

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Re: [X2go-dev] x2goclient hangs on login
by Heinz-M. Graesing 29 Oct '09

29 Oct '09

> -----Ursprüngliche Nachricht----- > Von: <Sauron99(a)gmx.de> > Gesendet: 23.10.09 08:27:33 > An: x2go-dev(a)lists.berlios.de > Betreff: Re: [X2go-dev] x2goclient hangs on login Hello > Hi, > so let me see if I got this right now. The users which are in /etc/group have to be in the LDAP tree as well to guarantee that X2go works right? You should have the users only in one place. If you wan't to use LDAP - keep them in ldap. The initsystem command in the x2goldaptools imports al users and groups into the ldap tree. What happens if you keep them in both places? The system gets confused by setting passwords. Some commands may alter the LDAP tree, because they are made for ldap, other tools may touch the files or use what is configured unter /etc/nsswitch.conf. X2goclient for example NEEDS the users in the LDAP tree to display them in displaymanager mode. > Well Im sorry but im pretty new with LDAP and so I have just added my users with "adduser user x2gousers" like it is described in the manual. I would really love to try X2GO out with LDAP support to have the full functionality, especially the Thinclient things. I recommend this manual: http://www.x2go.org/fileadmin/doc/installation_x2go_debian_en.html What is done in this manual? Our config scripts are generating preferences for your system, so the LDAP can be startet without touching every needed file. In the end you'll get a typical LDAP installation with SSL security. There is nothing special about this installation so you can even use other tutorials about configuring LDAP. If you wan't to have a nice look inside your LDAP tree, I recommend the tool "LUMA" - a graphical LDAP browser. > Basically I have just done whatŽs in the manual without giving a [LDAPMASTER URI] in the genconf Script and creatings the certificates. I have no idea how to check that LDAP is working correctly. Add an user to the LDAP - only to the LDAP. Try to log into the system using this user - if your LDAP + authentification is ok, you'll be able to get into the system. Greetings, Heinz ______________________________________________________ GRATIS für alle WEB.DE-Nutzer: Die maxdome Movie-FLAT! Jetzt freischalten unter http://movieflat.web.de

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Re: [X2go-dev] General questionŽs
by Heinz-M. Graesing 28 Oct '09

28 Oct '09

> -----Ursprüngliche Nachricht----- > Von: "Alternativende" <sauron99(a)gmx.de> > Gesendet: 28.10.09 17:38:46 > An: x2go-dev(a)lists.berlios.de > Betreff: [X2go-dev] General questionŽs > >> > > > > Maybe test x2go first without LDAP. > > And don't change to LDAP before it works fine... > > > > With regards, > > Paul van der Vlis. > > > > > Hi Paul, > Hi List, > There are a few things I was wondering about during my tests and I want > to report it. Maybe itŽs my fault, but the fonts are quite small in > Gnome. Is this a bug or do I have to reconfigure something first? > > Also I have a general question: As I said before Im testing on a HP > DL360 machine and unfortunately this machine has no soundcard at all. Is > it possible to use the soundcard of my Client or do I have to add a > soundcard to get this working? You'll only need a "soundcard" on your client, but you'll need to make sure that every application using sound will be able to use your setup. If you choose pulseaudio for example, not every application uses the preferences of your desktop environment. Players like Amarok, Vlc or Xine do have their own audio backends with plugins, which also need to be configured to use pulseaudio. > The other thing I was wondering about is the performance. I know that is > not possible to do crazy Blender stuff with a Terminalserver, but it is > possible to watch DVDŽs , Youtube or things like that? I have tried it > but it seems to stuck here. Somehow ADSL seems to be the best speed > Configuration anyway because normal Office work or Testris ;) for > instance stucks when I choose LAN. This happens even if Im just > connected to the server with one client. With pulseaudio configured for the flash player the audio track will be priorised. This means, the audio track will be played without breaks (if possible), but the video will be forced to follow the audio track. This is a progress in comparison to the situation before. Greetings, Heinz _______________________________________________________________ Neu: WEB.DE DSL bis 50.000 kBit/s und 200,- Euro Startguthaben! http://produkte.web.de/go/02/

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(no subject)
by Admin Anusan 26 Oct '09

26 Oct '09

hi everybody, so here is my first post. my enviroment: 1x debian lenny in a vmware-server session as terminal server 1x debian lenny in a vmware-server session as postgres database 1x debian lenny in a vmware-server session as ldap server 1x debian lenny in a vmware-server session as samba domain server so is there a way to: - start the x2goclient-cli without user and password directly into gdm, xdm or kdm - make the no-sound option work on the x2goclient-cli - are there plans for a ncurses version ? greetings Alexander Bruchmann

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Re: [X2go-dev] Errors starting gnome-session
by Moritz Schuepp 26 Oct '09

26 Oct '09

Hi, On Mon, 26 Oct 2009 13:07:47 +0100 Paul van der Vlis <paul(a)vandervlis.nl> wrote: > Hmm, is this maybe about a SSH key on the client then? correct. I created a ssh-key in /etc/ssh/ on the client and the errors are gone now, thank you! Hm... Why checks x2goclient for a ssh_host-key in /etc/ssh/ on the client? Kind regards, Moritz

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Errors starting gnome-session
by Moritz Schuepp 26 Oct '09

26 Oct '09

hi, i'm new to x2go. i am using x2goserver-one on debian lenny server with a gnome-desktop. i receive the following errors in x2goclient when connecting using x2goclient-gtk or x2goclient-qt4: "Cant read host rsa key:/etc/ssh/ssh_host_rsa_key.pub" though the file is readable: -rw-r--r-- 1 root root 393 2009-10-23 10:43 /etc/ssh/ssh_host_rsa_key.pub After that the following error pops up: "Unable to read : .pub" Anyone an idea on that? Thanks! Moritz

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arbitrary no-connection issues with »Warning: No data received from remote proxy within 30 seconds.«
by Paul Menzel 23 Oct '09

23 Oct '09

Dear X2go developers and users, since some time I sometimes cannot connect with my client to the server. The system the server is running on gets also used as a desktop machine. I think the issue is surfaces when a second user logs into the system using for example GNOME’s switch-user-applet. I do not know when this problem started. I am using Debian unstable/sid. A big change was the upgrade to GNOME 2.28 and the X.org server (1:7.4 +4). When the problem occurs `nxproxy -S` $ nxproxy -S NXPROXY - Version 3.3.0 Copyright (C) 2001, 2007 NoMachine. See http://www.nomachine.com/ for more information. Info: Proxy running in client mode with pid '4871'. Session: Starting session at 'Tue Oct 6 23:40:59 2009'. Info: Waiting for connection from any host on port '4008'. Info: Aborting the procedure due to signal '15'. Session: Session terminated at 'Tue Oct 6 23:41:24 2009'. I do not where know where I can get useful server logs for you. This gets printed to the terminal running x2goclient_gtk from the command line. $ x2goclient_gtk & [1] 8066 (x2goclient_gtk:8066): Gdk-CRITICAL **: gdk_drawable_copy_to_image: assertion `src_x >= 0' failed x2gostartagent fullscreen lan 16m-jpeg-9 unix-kde-depth_32 de pc105/de 1 D GNOME 50 8d1ccc606b790063e50135da76eaaecc 18829 x-50-1254863708_stDGNOME_dp32 30001 30002 30003 OpenSSH_5.1p1 Debian-8, OpenSSL 0.9.8k 25 Mar 2009 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug1: Connecting to 192.168.178.25 [10.10.10.10] port 22. debug1: Connection established. debug1: identity file /home/paul/.ssh/identity type -1 debug1: identity file /home/paul/.ssh/id_rsa type 1 debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-8192 debug1: Checking blacklist file /etc/ssh/blacklist.RSA-8192 debug1: identity file /home/x/.ssh/id_dsa type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.1p1 Debian-8 debug1: match: OpenSSH_5.1p1 Debian-8 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.1p1 Debian-8 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client blowfish-cbc hmac-md5 none debug1: kex: client->server blowfish-cbc hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: OpenSSH_5.1p1 Debian-8, OpenSSL 0.9.8k 25 Mar 2009 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug1: Connecting to 10.10.10.10 [10.10.10.10] port 22. debug1: Connection established. debug1: identity file /home/x/.ssh/identity type -1 debug1: identity file /home/x/.ssh/id_rsa type 1 debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-8192 debug1: Checking blacklist file /etc/ssh/blacklist.RSA-8192 debug1: identity file /home/x/.ssh/id_dsa type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.1p1 Debian-8 debug1: match: OpenSSH_5.1p1 Debian-8 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.1p1 Debian-8 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client blowfish-cbc hmac-md5 none debug1: kex: client->server blowfish-cbc hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Host '10.10.10.10' is known and matches the RSA host key. debug1: Found key in /home/x/.ssh/known_hosts:17 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Host '10.10.10.10' is known and matches the RSA host key. debug1: Found key in /home/x/.ssh/known_hosts:12317 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,password debug1: Next authentication method: publickey debug1: Trying private key: /home/x/.ssh/identity debug1: Offering public key: /home/x/.ssh/id_rsa debug1: Authentications that can continue: publickey,password debug1: Trying private key: /home/x/.ssh/id_dsa debug1: Next authentication method: password debug1: read_passphrase: can't open /dev/tty: No such device or address debug1: permanently_drop_suid: 1000 debug1: Authentications that can continue: publickey,password debug1: Next authentication method: publickey debug1: Trying private key: /home/x/.ssh/identity debug1: Offering public key: /home/x/.ssh/id_rsa debug1: Authentications that can continue: publickey,password debug1: Trying private key: /home/x/.ssh/id_dsa debug1: Next authentication method: password debug1: read_passphrase: can't open /dev/tty: No such device or address debug1: permanently_drop_suid: 1000 debug1: Authentication succeeded (password). debug1: Local connections to LOCALHOST:30001 forwarded to remote address localhost:30001 debug1: Local forwarding listening on ::1 port 30001. debug1: channel 0: new [port listener] debug1: Local forwarding listening on 127.0.0.1 port 30001. debug1: channel 1: new [port listener] debug1: Requesting no-more-sessions(a)openssh.com debug1: Entering interactive session. debug1: Connection to port 30001 forwarding to localhost port 30001 requested. debug1: channel 2: new [direct-tcpip] NXPROXY - Version 3.3.0 Copyright (C) 2001, 2007 NoMachine. See http://www.nomachine.com/ for more information. Info: Proxy running in client mode with pid '8077'. Session: Starting session at 'Tue Oct 6 23:15:14 2009'. Info: Connecting to remote host 'localhost:30001'. Info: Connection to remote proxy 'localhost:30001' established. Info: Connection with remote proxy completed. Warning: Unrecognized session type 'unix-kde-depth_32'. Assuming agent session. Info: Using LAN link parameters 1536/24/1/0. Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_32'. Info: Not using NX delta compression. Info: Not using ZLIB data compression. Info: Not using ZLIB stream compression. Info: Not using a persistent cache. Info: Forwarding X11 connections to display ':0'. Session: Session started at 'Tue Oct 6 23:15:15 2009'. debug1: Authentication succeeded (password). debug1: Remote connections from LOCALHOST:30002 forwarded to local address localhost:4713 debug1: Requesting no-more-sessions(a)openssh.com debug1: Entering interactive session. mkdir: kann Verzeichnis „/home/x/.pulse“ nicht anlegen: Die Datei existiert bereits debug1: remote forward success for: listen 30002, connect localhost:4713 debug1: All remote forwarding requests processed Warning: No data received from remote proxy within 30 seconds. Session: Terminating session at 'Tue Oct 6 23:15:45 2009'. Info: Waiting the cleanup timeout to complete. debug1: channel 2: free: direct-tcpip: listening port 30001 for localhost port 30001, connect from 127.0.0.1 port 44416, nchannels 3 Session: Session terminated at 'Tue Oct 6 23:16:09 2009'. debug1: channel 0: free: port listener, nchannels 2 debug1: channel 1: free: port listener, nchannels 1 Transferred: sent 2480, received 2128 bytes, in 55.2 seconds Bytes per second: sent 44.9, received 38.5 debug1: Exit status 0 Transferred: sent 2104, received 1800 bytes, in 55.0 seconds Bytes per second: sent 38.2, received 32.7 debug1: Exit status 0 cat: /home/x/.x2go/C-x-50-1254863708_stDGNOME_dp32/cmdoutput: Datei oder Verzeichnis nicht gefunden /usr/bin/x2goresume-session: Zeile 75: kill: (18829) - Kein passender Prozess gefunden Thanks, Paul

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Re: [X2go-dev] x2goclient hangs on login
by Sauron99＠gmx.de 23 Oct '09

23 Oct '09

Hi, so let me see if I got this right now. The users which are in /etc/group have to be in the LDAP tree as well to guarantee that X2go works right? Well Im sorry but im pretty new with LDAP and so I have just added my users with "adduser user x2gousers" like it is described in the manual. I would really love to try X2GO out with LDAP support to have the full functionality, especially the Thinclient things. Basically I have just done what´s in the manual without giving a [LDAPMASTER URI] in the genconf Script and creatings the certificates. I have no idea how to check that LDAP is working correctly. Greetings. -- Jetzt kostenlos herunterladen: Internet Explorer 8 und Mozilla Firefox 3.5 - sicherer, schneller und einfacher! http://portal.gmx.net/de/go/chbrowser

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Re: [X2go-dev] x2goclient hangs on login
by Heinz-M. Graesing 22 Oct '09

22 Oct '09

> -----Ursprüngliche Nachricht----- > Von: <Sauron99(a)gmx.de> > Gesendet: 22.10.09 16:59:59 > An: x2go-dev(a)lists.berlios.de > Betreff: Re: [X2go-dev] x2goclient hangs on login > GSN-EDU.GSN2 : Okt 9 13:28:58 : root : user NOT in sudoers ; TTY=unknown ; PWD=/ ; USER=root ; COMMAND=/usr/bin/x2gopgwrapper listsessionsroot GSN-EDU > > So what do I missed?? Please make sure - on server side - that the user who should be able to log in is part of the posix group x2gousers. You also should make sure, that you have an entry inside your /etc/sudoers file looking like this: %x2gousers ALL=(ALL) NOPASSWD: /usr/bin/x2gopgwrapper If you get an error running the command /usr/bin/x2gopgwrapper as the use you wan't to login, something obove is wrong. Greetings, Heinz _______________________________________________________________ Neu: WEB.DE DSL bis 50.000 kBit/s und 200,- Euro Startguthaben! http://produkte.web.de/go/02/

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x2go-dev October 2009