x2go-user

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2315 discussions

Problems with broker-session-autologin
by Mathias Ewald 13 Oct '13

13 Oct '13

Hi everyone, the way I understand the broker-session-autologin feature as described on http://wiki.x2go.org/doku.php/wiki:advanced:x2gobroker:loadbalancing?s[]=au… is that a user will not have to type username and password to the x2go server machine he is logging in to. Therefore we create an SSH key pair on the broker with x2gobroker-keygen and then import it on the X2go server with x2gobroker-agent installed using x2gobroker-pubkeyauthorizer --broker-url http(s)://<broker-server>:<port>/<basepatch>/pubkeys/ It looks like step 1 worked fine: x2gobroker@x2gobroker:~$ ls -l .ssh total 12 -rw------- 1 x2gobroker x2gobroker 1683 Oct 13 07:26 id_rsa -rw-r--r-- 1 x2gobroker x2gobroker 380 Oct 13 07:26 id_rsa.pub -rw-r--r-- 1 x2gobroker x2gobroker 222 Oct 13 07:34 known_hosts x2gobroker@x2gobroker:~$ On the desktop (x2go server) the key was imported: root@desktop:~# ls -l /var/lib/x2gobroker/.ssh/ total 4 -rw-r--r-- 1 x2gobroker x2gobroker 422 Okt 13 13:30 authorized_keys root@desktop:~# cat /var/lib/x2gobroker/.ssh/authorized_keys ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDBHBNRsjCy80ihzJmKxK7I3Gfn8FMlr+I8MyLbZbMHBdlKhHnAP2qm2AfsWwJa2hP62RgS2Ussxk0d9b7pLe43GfS3xcZR6+/YPSYblFqmTx2NPTV9A8ycG0wGr/RYh6qgWOTBlPoyGbZeFa538iSt/6iNNln+fbFBOwmTDi+UondjVovIhERAC96tFMVLQdRg+4vMViOZkUdmn2+7VVpeYEAmdNPtXd8fluSYYLZo8D8RFPn8IHf3LWr6OXpos/7AOglsxJy2A3EtEkif7boKHV7XyRviKsamahhuNTw1HelbZvr8eAB/TPKWI80giszKPz+1H8PFU4KM2paB8T9f x2gobroker(a)x2gobroker.*************** root@desktop:~# With a session of this configuration [vs55-dev-mathias] setsessiontitle=true krblogin=false pack=16m-jpeg quality=9 speed=2 usesshproxy=true sshproxytype=SSH sshproxyhost=88.198.244.99 sshproxyport=22 sshproxyautologin=false sshproxysamepass=false sshproxysameuser=false width=800 height=600 dpi=96 fullscreen=false maxdim=false multidisp=false xinerama=false usekbd=true sound=false soundtunnel=false defsndport=false soundsystem=none startsoundsystem=false useexports=false useiconv=false iconvform=UTF-8 iconvto=UTF-8 fstunnel=true print=false usemimebox=false mimeboxaction=OPEN autostart=false xdmcpserver=localhost command=XFCE4 published=false sessiontitle=vXLT - vSphere 5.5 Dev host=10.173.20.16 user=student0 name=vSphere 5.5 Dev command=XFCE sshproxyuser=mathias sshproxysameuser=false acl-groups-allow=mathias acl-groups-deny=ALL acl-clients-allow=ALL acl-any-order=deny-allow broker-session-autologin=true I would assume I did everything as described in the link above but here is what happens: 1) x2goclient --broker-url .... 2) session profiles received 3) click session above 4) enter password to ssh proxy 5) get window with title "student0(a)10.173.20.16" and text "Enter password to decrypt key" Now which password?? I didn't set any... In the meantime, x2goclient logs this: x2go-DEBUG-../onmainwindow.cpp:2160> Reading 3 sessions from config file. x2go-DEBUG-../onmainwindow.cpp:2757> Starting session with key. x2go-DEBUG-../httpbrokerclient.cpp:459> cmd request answer: "Access granted SERVER:10.173.20.16:22" x2go-DEBUG-../httpbrokerclient.cpp:441> parsing "Access granted SERVER:10.173.20.16:22" x2go-DEBUG-../httpbrokerclient.cpp:480> starting parser x2go-DEBUG-../httpbrokerclient.cpp:499> server IP: "10.173.20.16" x2go-DEBUG-../httpbrokerclient.cpp:500> server port: "22" x2go-DEBUG-../httpbrokerclient.cpp:507> parsing has finished x2go-DEBUG-../onmainwindow.cpp:1165> Removing apps from tray x2go-DEBUG-../onmainwindow.cpp:3307> Server: "10.173.20.16" x2go-INFO-8> "Starting connection to server: 10.173.20.16:22" x2go-DEBUG-../onmainwindow.cpp:2796> Start new ssh connection to server:"10.173.20.16":"22" krbLogin: false x2go-DEBUG-../httpbrokerclient.cpp:518> sslError ,code:"The host name did not match any of the valid hosts for this certificate": x2go-DEBUG-../httpbrokerclient.cpp:518> sslError ,code:"The certificate is self-signed, and untrusted": x2go-DEBUG-../httpbrokerclient.cpp:459> cmd request answer: "Access granted SERVER:10.173.20.16:22" x2go-DEBUG-../httpbrokerclient.cpp:441> parsing "Access granted SERVER:10.173.20.16:22" x2go-DEBUG-../httpbrokerclient.cpp:480> starting parser x2go-DEBUG-../httpbrokerclient.cpp:499> server IP: "10.173.20.16" x2go-DEBUG-../httpbrokerclient.cpp:500> server port: "22" x2go-DEBUG-../httpbrokerclient.cpp:507> parsing has finished x2go-DEBUG-../onmainwindow.cpp:1165> Removing apps from tray x2go-DEBUG-../onmainwindow.cpp:3307> Server: "10.173.20.16" x2go-INFO-8> "Starting connection to server: 10.173.20.16:22" x2go-DEBUG-../onmainwindow.cpp:2796> Start new ssh connection to server:"10.173.20.16":"22" krbLogin: false x2go-DEBUG-../onmainwindow.cpp:2891> SSH connection established. x2go-DEBUG-../onmainwindow.cpp:3117> Continue normal x2go session x2go-DEBUG-../onmainwindow.cpp:3497> "Session data: " x2go-DEBUG-../onmainwindow.cpp:3500> Starting new managed session. x2go-DEBUG-../onmainwindow.cpp:1165> Removing apps from tray x2go-DEBUG-../onmainwindow.cpp:3940> Executing remote command: "x2gostartagent 800x600 adsl 16m-jpeg-9 unix-kde-depth_24 us auto 1 D XFCE" x2go-DEBUG-../onmainwindow.cpp:1423> Close event received. x2go-INFO-6> "Closing x2goclient..." x2go-DEBUG-../onmainwindow.cpp:1276> Saving settings... x2go-DEBUG-../onmainwindow.cpp:1285> Saved settings. x2go-DEBUG-../onmainwindow.cpp:1307> Waiting for the SSH connection to finish... x2go-DEBUG-../onmainwindow.cpp:1309> Waited for the SSH connection to finish. x2go-INFO-7> "Closed x2goclient." x2gobroker shows this in the logs: root@x2gobroker:~# tail -n 0 -f /var/log/x2gobroker/* ==> /var/log/x2gobroker/access.log <== ==> /var/log/x2gobroker/access.log.1 <== ==> /var/log/x2gobroker/access.log.2.gz <== ==> /var/log/x2gobroker/authservice.log <== ==> /var/log/x2gobroker/authservice.log.1 <== ==> /var/log/x2gobroker/authservice.log.2.gz <== ==> /var/log/x2gobroker/broker.log <== ==> /var/log/x2gobroker/broker.log.1 <== ==> /var/log/x2gobroker/broker.log.2.gz <== ==> /var/log/x2gobroker/error.log <== ==> /var/log/x2gobroker/error.log.1 <== ==> /var/log/x2gobroker/wsgi.log <== ==> /var/log/x2gobroker/wsgi.log.2013-10-10_06 <== ==> /var/log/x2gobroker/wsgi.log.2013-10-13_06 <== ==> /var/log/x2gobroker/broker.log <== 2013-10-13 09:41:25,008 - broker - INFO - client address is 87.151.248.112 2013-10-13 09:41:25,008 - broker - DEBUG - username: mathias, password: XXXXX, task: listsessions, profile_id: , cookie: 2013-10-13 09:41:25,009 - broker - DEBUG - base_broker.X2GoBroker.get_authentication_mechanism(): found default-auth-mech in global config section: pam 2013-10-13 09:41:25,010 - broker - DEBUG - base_broker.X2GoBroker._do_authenticate(): authenticating user=mathias with password=<hidden> against backend=inifile. 2013-10-13 09:41:25,010 - broker - DEBUG - connecting to authentication service socket /run/x2gobroker/x2gobroker-authservice.socket 2013-10-13 09:41:25,011 - broker - DEBUG - sending username=mathias, password=<hidden>, service=x2gobroker to authentication service 2013-10-13 09:41:25,026 - broker - INFO - authentication against PAM service »x2gobroker« succeeded for user »mathias« 2013-10-13 09:41:25,027 - broker - DEBUG - base_broker.X2GoBroker.check_access(): result of authentication check is: True 2013-10-13 09:41:25,034 - broker - DEBUG - base_broker.X2GoBroker.get_session_autologin(): found default-session-autologin in global config section: False 2013-10-13 09:41:25,087 - broker - DEBUG - base_broker.X2GoBroker.get_agent_query_mode(): found default-agent-query-mode in global config section: none 2013-10-13 09:41:25,094 - broker - DEBUG - base_broker.X2GoBroker.get_session_autologin(): found broker-session-autologin in session profile with ID vs55-dev-mathias: true. This one has precendence over the default value. 2013-10-13 09:41:25,144 - broker - DEBUG - base_broker.X2GoBroker.get_agent_query_mode(): found default-agent-query-mode in global config section: none 2013-10-13 09:41:25,151 - broker - DEBUG - base_broker.X2GoBroker.get_session_autologin(): found default-session-autologin in global config section: False 2013-10-13 09:41:25,206 - broker - DEBUG - base_broker.X2GoBroker.get_session_autologin(): found default-session-autologin in global config section: False 2013-10-13 09:41:25,259 - broker - DEBUG - base_broker.X2GoBroker.get_agent_query_mode(): found default-agent-query-mode in global config section: none 2013-10-13 09:41:31,634 - broker - INFO - client address is 87.151.248.112 2013-10-13 09:41:31,635 - broker - DEBUG - username: mathias, password: XXXXX, task: selectsession, profile_id: vs55-dev-mathias, cookie: 2013-10-13 09:41:31,636 - broker - DEBUG - base_broker.X2GoBroker.get_authentication_mechanism(): found default-auth-mech in global config section: pam 2013-10-13 09:41:31,636 - broker - DEBUG - base_broker.X2GoBroker._do_authenticate(): authenticating user=mathias with password=<hidden> against backend=inifile. 2013-10-13 09:41:31,636 - broker - DEBUG - connecting to authentication service socket /run/x2gobroker/x2gobroker-authservice.socket 2013-10-13 09:41:31,637 - broker - DEBUG - sending username=mathias, password=<hidden>, service=x2gobroker to authentication service 2013-10-13 09:41:31,652 - broker - INFO - authentication against PAM service »x2gobroker« succeeded for user »mathias« 2013-10-13 09:41:31,652 - broker - DEBUG - base_broker.X2GoBroker.check_access(): result of authentication check is: True 2013-10-13 09:41:31,659 - broker - DEBUG - base_broker.X2GoBroker.get_agent_query_mode(): found default-agent-query-mode in global config section: none I am not sure how the mechanism works so that the client can log in using pub key as a user for whom no ssh public key was installed, so I need your help. cheers Mathias

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pyhoca-gui error
by Mathias Ewald 13 Oct '13

13 Oct '13

Hi, connecting to my server I get this since the day before yesterday: Dunno what changed ... mathias@x220:~$ pyhoca-gui --debug Xlib.protocol.request.QueryExtension pyhoca-gui[15814] (PyHoca-GUI) DEBUG: PyHoca-GUI's user interface language is: en_US. pyhoca-gui[15814] (PyHoca-GUI) INFO: PyHoca GUI is starting up pyhoca-gui[15814] (PyHoca-GUI) INFO: start TaskBarIcon of type: ('__WXGTK__', 'wxGTK', 'unicode', 'gtk2', 'wx-assertions-off', 'SWIG-1.3.29') pyhoca-gui[15814] (PyHoca-GUI) WARN: the current release of PyHoca-GUI does not support client configuration pyhoca-gui[15814] (x2gosessregistry-pylib) NOTICE: registering X2Go session **********... pyhoca-gui[15814] (x2goclient-pylib) NOTICE: initializing X2Go session... pyhoca-gui[15814] (x2gocontrolsession-pylib) NOTICE: connecting to [**********]:22 pyhoca-gui[15814] (PyHoca-GUI) INFO: SSH key authentication to server failed, trying next auth-mechanism pyhoca-gui[15814] (PyHoca-GUI) INFO: password dialog box started pyhoca-gui[15814] (x2gocontrolsession-pylib) NOTICE: connecting to [**********]:22 pyhoca-gui[15814] (PyHoca-GUI) NOTICE: [********** - connect] Authentication has been successful. Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/pyhoca/wxgui/logon.py", line 438, in OnLogin self._PyHocaGUI.notifier.send(self.current_profile_name, context='AUTH_%s' % self.current_profile_name, timeout=4000) File "/usr/lib/python2.7/dist-packages/pyhoca/wxgui/notify.py", line 137, in send if not n.show(): glib.GError: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Notifications was not provided by any .service files pyhoca-gui[15814] (PyHoca-GUI) INFO: exit application mathias@x220:~$ For some reaseon pub key auth doesn't work anymore and even with password auth it shows this error message. cheers Mathias

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X2go browser plugin & session broker
by Ted Barnes 10 Oct '13

10 Oct '13

Hi All: Currently the people I support who use x2go connect over ssh and are "outside the firewall". This means needing some secure way to get remote users the ssh private key. Q: How do other people do this, where there is no secure connection until the private ssh key is provided? Email doesn't seem to be a great way to send someone a key (e.g., as a password protected file)....maybe try some sort of "user login" web page or drop box? My understanding of the documented way of giving someone a key assumes you are on the same LAN....is that wrong? Q: Does x2go session broker still require ssh even if the initial connection is made over HTTPS? Would x2go session broker be a way to avoid using SSH keys but still provide an encrypted connection? Q: Does the x2go plugin work on Windows and OS X at this point? Would the x2go plugin be a means to connect over HTTPS securely with a user name and password and avoid SSH keys? Any suggestions, please!

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sharing folders
by László Zsigmond 10 Oct '13

10 Oct '13

Hi, I am new to X2go... I'm trying to make a connection to a pure CentOS on VMware cloud from Windows. I'm impressed by the settings in the session manager but actually couldn't make the two big things I like the most to work: 1. File sharing 2. Client side printing support I tried sshfs with dokan successfully, so that's not the problem. My X2go client was downloaded today from x2go.org (latest_mswin-setup). Any ideas what to could I miss at the server, what on the client side... or what kind of other information should I write out (and probably it will do me good if the how to is included then too). Many thanks in advance, Laci

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x2gobroker: war of passwords
by Mathias Ewald 10 Oct '13

10 Oct '13

Hi, I am running x2gobroker with SSH proxy and right now users have to type: 1) broker username and password 2) desktop and username and password 3) proxy password A lot of typing for just a simple desktop connection! I've learned I can use ssh key autologin somehow (didnt try yet) so step 2 will be gone. Is there a way to have x2goclient reuse the broker password for the proxy connection or something else to remove the ssh proxy authentication without distributing private keys to the users? cheers Mathias

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Re: [X2Go-User] x2gobroker: no sessions found
by Mike Gabriel 10 Oct '13

10 Oct '13

On Mi 09 Okt 2013 15:04:39 CEST, Mathias Ewald wrote: > Hi, I have a problem with only one of my currently two user accounts: > > 1) Connect to broker > 2) open xfce4 session > 3) logout from session > 4) reconnect to broker > 5) login fails with message "no sessions found" > > after a while it works again. Without log files I cannot say anything about this... Send log information, please (x2goclient --debug and x2gobroker in debug mode). 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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x2gobroker on wheezy
by Mathias Ewald 09 Oct '13

09 Oct '13

Hi, I tried x2gobroker on Wheezy now but failed even earlier: root@x2gobroker:~# cat /etc/apt/sources.list deb http://ftp.de.debian.org/debian stable main contrib non-free deb-src http://ftp.de.debian.org/debian stable main contrib non-free deb http://ftp.debian.org/debian/ wheezy-updates main contrib non-free deb-src http://ftp.debian.org/debian/ wheezy-updates main contrib non-free deb http://security.debian.org/ wheezy/updates main contrib non-free deb-src http://security.debian.org/ wheezy/updates main contrib non-free root@x2gobroker:~# cat /etc/apt/sources.list.d/x2go.list # X2Go Repository deb http://packages.x2go.org/debian wheezy main # X2Go Repository (sources) deb-src http://packages.x2go.org/debian wheezy main root@x2gobroker:~# apt-get update ... root@x2gobroker:~# apt-get upgrade ... root@x2gobroker:~# apt-get install x2gobroker Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: x2gobroker : Depends: python-wsgilog but it is not installable Depends: python-x2gobroker (>= 0.0.2.3-0~x2go1+wheezy~main~505~build1) but it is not going to be installed Depends: python-x2gobroker (< 0.0.2.3-0~x2go1+wheezy~main~505~build1.1~) but it is not going to be installed E: Unable to correct problems, you have held broken packages. root@x2gobroker:~# apt-cache search python-wsgilog root@x2gobroker:~# apt-cache search python-x2gobroker python-x2gobroker - X2Go http(s) based session broker (Python modules) root@x2gobroker:~# apt-get install python-x2gobroker Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: python-x2gobroker : Depends: python-pampy but it is not installable E: Unable to correct problems, you have held broken packages. root@x2gobroker:~# apt-cache search python-pampy root@x2gobroker:~# Is there any distribution this actually works on? :D cheers Mathias

2 13

Mounting USB sticks and CD-ROMs on thin clients, sound
by registration＠anschluss.org 09 Oct '13

09 Oct '13

Hello, I am trying to set up an x2go server with thin clients (debian wheezy). For the most part, the clients are working fine - the boot time and speed is astonishing even with the low-power server hardware I need to use. Alas, there are a few important things I cannot get to work after days of googling and tinkering: 1) mounting local drives on the thin clients - When I insert a cd-rom, a little eject button appears in the lower right corner of the screen. However, I cannot see the files on the disc in /home/<user>/media/cd - When I insert a FAT formatted USB stick, nothing (visible) happens. Only in the local console can I see that a device has been attached, but nothing is mounted, and nothing shows up in /home/<user>/media/disk The x2gousbmount and x2gocdmanager are installed in the chroot, and <user> was added to the fuse group. Are there other prerequisite packages on the server that I could have missed? 2) Sound on the thin clients doesn't work - upon PXE boot, the sound card seems to be correctly detected; I checked alsamixer. Pulse connects correctly via TCP, but pactl lists no sound card. It seems that module-udev-detect fails to detect the sound card. I don't know how to get debug output because I cannot find where the actual command line (pulseaudio -D -n -L module-native-protocol-tcp [...] ) is generated in the chroot to add more debug output PulseAudio Manager reports "Default Sink: not set"; "Default Source: not set". Those issues are real showstoppers for a project I am trying to set up in Africa next week - I'd be really thankful for hints on how to solve them. Peter

3 3

Re: [X2Go-User] [X2go-User] Support for extra mouse buttons?
by Stephen Hoogendijk 09 Oct '13

09 Oct '13

Is there any update on this? I was wondering the same thing. Met vriendelijke groet / Kind regards, Stephen Hoogendijk Innovation Engineer Cloud www.leaseweb.com<http://www.leaseweb.com>

1 0

no menu with gnome fallback
by Robert Lefebvre 09 Oct '13

09 Oct '13

Hi all, A new install of ubuntu 12.04, all updated. Installed latest all dependencies, x2goserver and x2goserver-xsession Have multiple users so I am trying to set gnome fallback as the default desktop globally by modifying etc/lightdm/lightdm.conf Have this in there now : [SeatDefaults] #greeter-session=unity-greeter #user-session=gnome-fallback gnome-session --session=gnome-fallback The "greeter" line is a mystery to me? I've run it and commented it out. Doesn't seem to make a difference that I have noticed. Basically the gnome classic desktop loads but no menu or task bar. In the client I'm using custom desktop option with "gnome-session --session=gnome-fallback" and also gnome-session --session=gnome-session-fallback" I've got the screen size of the client set to 600X800. One odd behavior I noticed is that when the session is loading the window is, indeed, 600X800 but by the time it has fully loaded it has gone completely full screen. I tried lowering the resolution, which keeps it going to full screen, but there are still no top or bottom toolbars. I'm running Windows 8 on a Toshiba 64 bit laptop. Any help with this would be greatly appreciated. Thanks Robert PS. Here is what is listed in the client's "show details" window NXPROXY - Version 3.5.0 Copyright (C) 2001, 2010 NoMachine. See http://www.nomachine.com/ for more information. Info: Proxy running in client mode with pid '7136'. Session: Starting session at 'Tue Oct 8 20:48:25 2013'. Info: Connecting to remote host 'localhost:31001'. Info: Connection to remote proxy 'localhost:31001' established. Info: Connection with remote proxy completed. Warning: Unrecognized session type 'unix-kde-depth_32'. Assuming agent session. Warning: Failed to read data from the X auth command. Warning: Generated a fake cookie for X authentication. Info: Using WAN link parameters 768/24/1/0. Info: Using cache parameters 4/4096KB/8192KB/8192KB. Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_32'. Info: Using ZLIB data compression 1/1/32. Info: Using ZLIB stream compression 1/1. Info: No suitable cache file found. Info: Forwarding X11 connections to display 'localhost:0'. Session: Session started at 'Tue Oct 8 20:48:26 2013'. Info: Established X server connection. Info: Using shared memory parameters 0/0K. BungeeBones.com - A B2B Link Exchange - Free Links in limited locations - human edited and reviewed - Networked online advertising business opportunities available through our free, distributed web directory script

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