x2go-user October 2013

x2go-user@lists.x2go.org

24 participants
44 discussions

Q: regarding x2go plugin
by Ted Barnes 20 Oct '13

20 Oct '13

Hi All: Am starting to experiment with the x2go plugin, and am trying to run it on a virtual machine. I'm also, as a baseline, working with a separate server where I'm running apache2 and the x2goplugin-provider. Initially, I could connect to the "regular" server but not to the VM. After disabling all the firewall rules (which I'll want to go back and address eventually), I could get the login screen to appear when trying to connect to the VM. However, I still can't actually connect. NOTE: In both scenarios, I am purposely not generating ssh keys, as eventually I want to explore using x2go with SSL. Q: When I initially connect to the "regular" server, I get asked to OK an ssh key, which I do and I can connect. I never get asked this question when trying to connect to VM. Any suggestions as to how to complete this initial experiment on using the plugin with a VM? Thanks!

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Fedora and Fedora EPEL X2Go packages
by Orion Poplawski 18 Oct '13

18 Oct '13

X2Go packages are now available in the official repositories for: - Fedora 20 - Fedora 19 in updates-testing - EPEL 6 in epel-testing (missing python-x2go/pyhoca for now) This is not a full set yet, but has the basics. If there is anything missing that you would like to set, let me know. -- Orion Poplawski Technical Manager 303-415-9701 x222 NWRA, Boulder/CoRA Office FAX: 303-415-9702 3380 Mitchell Lane orion(a)nwra.com Boulder, CO 80301 http://www.nwra.com

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nx-libs missing on Fedora 19
by Michael DePaulo 18 Oct '13

18 Oct '13

Jan Engelhardt (and anybody else involved in X2Go's openSUSE Build Service for Fedora), It appears that the nx-libs packages are failing to compile for Fedora 19. It is thus impossible to install x2go using the OBS Fedora 19 repo: https://build.opensuse.org/project/show/X11:RemoteDesktop:x2go Some people have suggested the workaround of using the Fedora 18 repo on Fedora 19. That workaround seems to have worked for me. However, I plan on updating the wiki (I have an account) and I do not want to write that people should use the Fedora 18 repo on Fedora 19 unless I get confirmation that it is safe to do so. https://ask.fedoraproject.org/question/31602/cant-install-x2go-on-f19/ I might be able to help with fixing the nx-libs compiliation issue. According to the OBS, it looks like newer versions of nx-libs are failing to compile on Fedora 18, RHEL5 and RHEL6 also: https://build.opensuse.org/project/monitor/X11:RemoteDesktop:x2go?blocked=0… -Mike

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trouble building nxlibs 3.5.0.21
by Short, Kermit 17 Oct '13

17 Oct '13

Greetings, I'm trying to build nx-libs from a source tarball for version 3.5.0.21. When I run: make build-lite I get a compilation abort while building nxcomp. The compiler is looking for jpeglib.h. I've run a quick find and that file doesn't exist in the hierarchy created by the tarball. g++ -c -O3 -fno-rtti -fno-exceptions -I../nx-X11/exports/include -Wmissing-declarations -fPIC -DIN_ADDR_T=in_addr_t -DVERSION=\"3.5.0\" -DPACKAGE_NAME=\"\" -DPACKAGE_TARNAME=\"\" -DPACKAGE_VERSION=\"\" -DPACKAGE_STRING=\"\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -Wall -Wpointer-arith Jpeg.cpp Jpeg.cpp:29:23: fatal error: jpeglib.h: No such file or directory compilation terminated. make[1]: *** [Jpeg.o] Error 1 make[1]: Leaving directory `/var/tmp/nx-libs-3.5.0.21/nxcomp' make: *** [build-lite] Error 2 This is probably mostly due to my reluctance (and inability in some cases) to clone the git source tree, but I'm a bit old school when it comes to building software...this automake stuff is about as modern as I can get. If anyone has any howtos on how to clone the nx-libs modules using http transports (I'm behind a fairly thorough firewall and web proxy) I'm willing to give it a shot, otherwise where can I obtain that header file? Thanks! -- Kermit Short DCS-5

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sources for nxcomp and nxproxy
by Short, Kermit 17 Oct '13

17 Oct '13

Greetings, I'm trying to build an installation of x2go client to be installed on a thin client device. I've downloaded the tarball of the sources for x2goclient, and in the tarball is an installation README referring to prerequisites for installation. Two of the prerequisites are nxcomp and nxproxy with a URL of http://www.nomachine.com/sources.php. The webserver at nomachine indicates that the page no longer exists. Does anyone know where I can download a compatible version of these packages to be used with a source install of x2goclient and pyhocaGUI? Thanks! -- Kermit Short DCS-5

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Q: regarding calling script or binary on login
by Ted Barnes 14 Oct '13

14 Oct '13

Hi All: Am trying to launch a script at login to mount an encrypted partition. I've been trying the option to place a script and/or commands in /usr/lib/x2go/extensions/post-start.d/scriptname.sh. I can get this to work, but want to figure out a way to keep the password for the mount hidden. Q: if I compile the script with shc, can I call a binary using the /usr/lib/x2go/extensions/post-start.d/ approach? It appears right now that the compiled script/binary can only be started as root, and x2go seems to call scripts as the user logging in. Q: alternatively, if I put one script in /usr/lib/x2go/extensions/post-start.d/ that calls another that contains the mount command with the password, is there a way to make the called script callable from the user login but also not "viewable" by the user. I've tried things like "chmod 711" but the script's content either remain visible if it executes or the script's content can't can't be seen but it doesn't execute. Any help appreciated - thanks!

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mouse gestures on x2go
by Gianfilippo 14 Oct '13

14 Oct '13

Hi all, has anybody managed to make mouse gestures work through an x2go client connection (i.e. using easystroke )? if so, how? thank you.

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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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x2go-user October 2013