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Re: [X2Go-User] x2go-Server needs 5 minutes to respond
by Mihai Moldovan 14 Nov '17

14 Nov '17

[Resent with correct header, because I messed up myself this time.] On 11/14/2017 09:35 AM, K. Reinhold Trier wrote: > thank you, it helped. Please remember to also include the mailing list when replying. Okay, good. Watch the DISPLAY number (the first number after the user name in a session ID.) If it keeps raising during normal use to unnaturally large numbers, post another reply please, since that would mean that session cleanup isn't working correctly. More context: x2goagent DISPLAY numbers start at 50 and should naturally increase with each new started session. When terminating a session, its DISPLAY number is free'd and should be reclaimed by the next started session. Hence, seeing a DISPLAY number of more than 100 for a new session while there are, say, 20 sessions running would suggest that something's wrong. Mihai

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x2go-Server needs 5 minutes to respond
by K. Reinhold Trier 13 Nov '17

13 Nov '17

Hi, last Thursday after an automatic update of the x2go-server our clients didn't receive any more answer from the server. We had to switch to vnc to get our workstations connected again. This morning, after an other automatic update of the x2go-software, I noticed that clients could connect again - but after an unacceptable delay of about 5 minutes. Here our data: We are on Ubuntu 16.04.3 LTSUbuntu 16.04.3 LTS When starting x2goclient on a ubuntu client, after about 5 minutes it shows the details: NXPROXY - Version 3.5.0 Info: Proxy running in client mode with pid '25793'. Session: Starting session at 'Mon Nov 13 18:28:30 2017'. Info: Using abstract X11 socket in kernel namespace for accessing DISPLAY=:0. Info: Connecting to remote host 'localhost:42485'. Info: Connection to remote proxy 'localhost:42485' established. Info: Connection with remote proxy completed. Warning: Unrecognized session type 'unix-kde-depth_24'. Assuming agent session. Info: Using ADSL link parameters 512/24/1/0. Info: Using cache parameters 4/4096KB/8192KB/8192KB. Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_24'. Info: Using ZLIB data compression 1/1/32. Info: Using ZLIB stream compression 4/4. Info: No suitable cache file found. Info: Forwarding X11 connections to display ':0'. Session: Session started at 'Mon Nov 13 18:28:31 2017'. Info: Established X server connection. Info: Using shared memory parameters 0/0K Now the client windows opens. To give more information about our installation: dpkg -l|grep x2go yields: ii cups-x2go 3.0.1.3-1 all Virtual X2Go printer for CUPS ii x2goagent 2:3.5.0.33-0~710~ubuntu16.04.1 all X2Go agent ii x2goclient 4.1.1.0-0~1679~ubuntu16.04.1 amd64 X2Go Client application (Qt4) ii x2golxdebindings 1.0.2.4-0~70~ubuntu16.04.1 all LXDE bindings for X2Go ii x2gomatebindings 0.0.1.5-0~203~ubuntu16.04.1 amd64 X2Go MATE bindings and MIME types ii x2goserver 4.0.1.22-0~1197~ubuntu16.04.1 amd64 X2Go server daemon scripts ii x2goserver-extensions 4.0.1.22-0~1197~ubuntu16.04.1 all X2Go server daemon scripts (extensions) ii x2goserver-printing 4.0.1.22-0~1197~ubuntu16.04.1 all X2Go server daemon scripts (printing) ii x2goserver-xsession 4.0.1.22-0~1197~ubuntu16.04.1 all X2Go server daemon scripts (Xsession runner) I extracted the relevant entries in syslog during that process. They are: Nov 13 12:12:35 goho /usr/bin/x2goumount-session[37611]: successfully unmounted "/tmp/.x2go-name/media/disk/_home_reinhold_MiniUbuntu" Nov 13 12:12:35 goho /usr/bin/x2goumount-session[37611]: successfully unmounted "/tmp/.x2go-name/media/disk/_home_reinhold_Dokumente" Nov 13 12:12:36 goho /usr/bin/x2goumount-session[37611]: ERROR: failed to unmount "/tmp/.x2go-name/spool/C-name-389-1510571109_stDICEWM_dp24" Nov 13 12:16:21 goho /usr/sbin/x2gocleansessions[3351]: name-389-1510571780_stDICEWM_dp24: state file for this session does not exist: /tmp/.x2go-name/C-name-389-1510571780_stDICEWM_dp24/state Nov 13 12:16:21 goho /usr/bin/x2gostartagent: successfully started X2Go agent session with ID name-389-1510571780_stDICEWM_dp24 Nov 13 12:16:25 goho /usr/bin/x2goruncommand: launching session with Xsession-x2go mechanism, using STARTUP="icewm-session" Nov 13 12:16:25 goho /usr/bin/x2goruncommand: dbus wrapper available as /usr/bin/dbus-run-session Nov 13 12:16:31 goho /usr/bin/x2gosetkeyboard: Setting X keyboard according to /home/name/.x2go/C-name-389-1510571780_stDICEWM_dp24/keyboard Nov 13 12:21:15 goho /usr/bin/x2goumount-session[27991]: ERROR: failed to unmount "/tmp/.x2go-name/spool/C-name-389-1510571780_stDICEWM_dp24" And looking for the processes with ps -ef|grep x2go at the beginning: name 38975 38936 0 12:13 ? 00:00:00 bash -l -c echo "X2GODATABEGIN:0b144655-d1b7-4fdf-9dd8-a3b6483c2c32"; export PATH= ... name 38976 38975 0 12:13 ? 00:00:00 /bin/bash /usr/bin/x2gostartagent 1800x1100 adsl 16m-jpeg-9 unix-kde-depth_24 de auto 1 D ICEWM both And then, some minutes later: name 20337 1 0 12:16 ? 00:00:00 /usr/lib/nx/../x2go/bin/x2goagent -extension XFIXES -nolisten tcp -nolisten tcp -dpi 96 -D -auth /home/name/.Xauthority -geometry ... name 20547 38936 0 12:16 ? 00:00:00 bash -l -c echo "X2GODATABEGIN:f57debe6-7893-4214-8344-eb59d431ddaa"; export PATH= ... name 20548 20547 5 12:16 ? 00:00:00 /usr/bin/perl /usr/bin/x2gomountdirs dir name-389-1510571780_stDICEWM_dp24 reinhold ... name 20569 1 0 12:16 ? 00:00:00 ssh -x -a -oClearAllForwardings=yes -oServerAliveInterval=300 -oIdentityFile=/home/name/.x2go/ssh/key.VE6405 -oUserKnownHostsFile= ... name 20571 1 0 12:16 ? 00:00:00 /bin/bash /usr/bin/x2goruncommand 389 20337 name-389-1510571780_stDICEWM_dp24 43965 icewm-session nosnd D name 20600 20337 0 12:16 ? 00:00:00 /usr/lib/nx/../x2go/bin/x2goagent -extension XFIXES -nolisten tcp -nolisten tcp -dpi 96 -D -auth /home/name/.Xauthority -geometry ... name 20688 20571 0 12:16 ? 00:00:00 /bin/bash /usr/bin/x2gosetkeyboard name 20769 20571 0 12:16 ? 00:00:00 /usr/bin/dbus-run-session /etc/x2go/Xsession name 20771 20769 0 12:16 ? 00:00:00 /bin/sh /etc/x2go/Xsession name 20805 20771 0 12:16 ? 00:00:00 xrdb -merge /etc/x2go/Xresources/x11-common name 20814 1 0 12:16 ? 00:00:00 sshfs -o idmap=user,uid=1181,gid=100,default_permissions,ServerAliveInterval=300,IdentityFile=/home/name/.x2go/ssh/key.VE6405,UserKnownHostsFile= ... name 20878 20548 0 12:16 ? 00:00:00 sh -c timeout 30 sshfs -o idmap=user,uid=`id -u`,gid=`id -g`,default_permissions,ServerAliveInterval=300,IdentityFile=/home/name/.x2go/ssh/key.VE6405,UserKnownHostsFile= ... name 20881 20878 0 12:16 ? 00:00:00 timeout 30 sshfs -o idmap=user,uid=1181,gid=100,default_permissions,ServerAliveInterval=300,IdentityFile=/home/name/.x2go/ssh/key.VE6405,UserKnownHostsFile= ... name 20882 20881 0 12:16 ? 00:00:00 sshfs -o idmap=user,uid=1181,gid=100,default_permissions,ServerAliveInterval=300,IdentityFile=/home/name/.x2go/ssh/key.VE6405,UserKnownHostsFile= ... name 20886 1 0 12:16 ? 00:00:00 ssh -x -a -oClearAllForwardings=yes -oServerAliveInterval=300 -oIdentityFile=/home/name/.x2go/ssh/key.VE6405 -oUserKnownHostsFile= ... Is there somebody who could help us getting back to working x2go-installation? Best regards Reinhold

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Odp: opensuse client - reverse tunnel problem
by Sebastian Turzański 07 Nov '17

07 Nov '17

Hi I still experience this problem Can anybody take a look at the debug output (pastebin link below) I suspect this can have something to do with x2goclient not generating the content of ~./.x2go/etc the directory itself is not created either. https://pastebin.com/uRzQnKcc Dnia Sobota, 22 Października 2016 20:54 Sebastian Turzański <dpbasti(a)wp.pl> napisał(a) > Is anybody able to use x2go client with reverse tunel (folder sharing and/or client side printing) om Opensuse > > I get the same server with reverse ssh tunnel working perfectly well when connected from ubuntu > and failing if used from Opensuse Leap 42.1 nor Tumbleweed > > > _______________________________________________ > x2go-user mailing list > x2go-user(a)lists.x2go.org > http://lists.x2go.org/listinfo/x2go-user

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Upcoming Package Repository Downtime
by Mihai Moldovan 07 Nov '17

07 Nov '17

Hi I will be releasing new stable versions of nx-libs and x2goserver soon. Due to some file moves between packages, these releases must happen in lock-step (or more specifically the binary packages built from these releases be available at the same time). In order to not potentially break user systems, I will disable access to the package repositories on the UTC days of - Wed November 8, 2017 - Fri November 10, 2017 (rain date) for an unspecified amount of time. If you experience problems accessing the package repositories on these days, rest assured that this behavior is intentional. The repositories will be available once new binary packages for these new releases are available. A more fine-grained notice will be posted on the Wiki main page and removed again once the situation is cleared. Mihai

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rstudio menus not displayed && qtcreator crash
by Piotr Balwierz 07 Nov '17

07 Nov '17

Hello, I have two problems with two IDEs. 1) For R programming I use Rstudio.I am starting mate-terminal via x2go, and then execute rstudio remotely. It displays well, apart from the fact that pull-down menus are not displayed. They got highlightedwhen clicked, but nothing more. This is the only program which has this issue that I am aware of. Warning messages are as follows: QXcbConnection: Failed to get the primary output of the screen Could not initialize OpenGL for RasterGLSurface, reverting to RasterSurface. 2) For C++ I use qtcreator. It crashes immediatelywhen run via x2go: $ qtcreator failed to get the current screen resources Could not initialize GLX Aborted 3) Moreover mate-terminal window is not resizeable Versions: server: Latest Heuler 64bitfor Debian buster client: x2goclient 4.1.1.0 64bit for Arch Linux, running plasma desktop Thanks, Piotr

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ssh-keygen.exe loads the processor every time the client starts
by Max A. 07 Nov '17

07 Nov '17

Hello. I'm using a x2go server on CentOS 6.9 (the latest version from EPEL, 4.0.1.20), clients use Windows XP/7 and the latest version of X2Go Client (4.1.0.0-2017.03.11). Each time the client connects, ssh-keygen.exe (C:\Program Files\x2goclient\ssh-keygen.exe) starts with the parameters "-t rsa -b 4096 -N" "-C" X2Go Client RSA user key "-f C: /Users/max/.x2go/ssh/gen/key.fl1416 ". On not very powerful computers, this causes a delay of a few seconds with each connection and irritates users. Tell me please, if it is possible to generate this key once and for all? -- M. Alhimenko

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Can't access X2go through router
by Bill Damage 06 Nov '17

06 Nov '17

The error is exactly as here: [X2Go-User] X2Go Client: Kex error : no match for method server host key alog: server [ssh-rsa], client [ssh-ed25519] | | | | [X2Go-User] X2Go Client: Kex error : no match for method server host key... | | | However, I have some more information which suggest the server isn't the culprit.When I use the current Windows client on a LAN, I get in OK. When I use the same from linux on the LAN, I get in OK. It's only when i've tried to port forward 2249 -> 22 from the WAN that it fails with this message from either client. Even stranger, if I SSH in from the WAN on port 2249 I get in OK. So the usual suggestions of regenerating keys etc don't seem to help, even though I did that anyway. Server I'm trying to access is Ubuntu 16.04.3 root@mojo:~# x2goversionx2goagent: 3.5.0.32x2goserver: 4.0.1.20x2goserver-extensions: 4.0.1.20x2goserver-xsession: 4.0.1.20root@mojo:~# Linux and Win clients are 4.1.0.0 Here's the last twist - this is a VM. I have also port forwarded 22 to 22 on the host, which is Fedora 26 and the main server actually running these VMs (KVM), and that lets me in via X2Go no problem. So the router itself can work if it's not going to a VM. I also tried disabling the firewall on the VM but still got no joy. At that point I knew I was plumb out of ideas so came here ;-) Thanks.

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X2Go on Debian Stretch server : root user keyboard mapping
by Bruno Joffredo 06 Nov '17

06 Nov '17

Hello, I have installed X2Go (server v4.0.1.20) on a Debian Stretch (v9.2) server a few days ago. This machine is secured at the network level, so i want to login root. When I log in as a user, the keyboard mapping is good. But when I log in root, the arrow keys are not good : up doesn't show anything, down acts like return, and the pipe key does not show anything. I did some search on the web, but everything I found did not work. Connected via X2go Client to the root user : * the command setxkbmap fr return : Error loading new keyboard description * echo $DISPLAY : :50.0 * the command DISPLAY=:0.0 setxkbmap fr return no error * here is the contents of the file ~/.x2go/C-root-50-1509957528_stDLXDE_dp24/clients : No matching visual for __GLcontextMode with visual class = 4 (32770), nplanes = 24 No matching visual for __GLcontextMode with visual class = 4 (32770), nplanes = 24 No matching visual for __GLcontextMode with visual class = 4 (32770), nplanes = 24 No matching visual for __GLcontextMode with visual class = 4 (32770), nplanes = 24 No matching visual for __GLcontextMode with visual class = 5 (32771), nplanes = 24 No matching visual for __GLcontextMode with visual class = 5 (32771), nplanes = 24 No matching visual for __GLcontextMode with visual class = 5 (32771), nplanes = 24 No matching visual for __GLcontextMode with visual class = 5 (32771), nplanes = 24 The XKEYBOARD keymap compiler (xkbcomp) reports: > Error: Can't find file "null" for symbols include > Exiting > Abandoning symbols file "default" > Error: Cannot open "compiled/server-50.xkm" to write keyboard description > Exiting The XKEYBOARD keymap compiler (xkbcomp) reports: > Error: Cannot open "compiled/server-50.xkm" to write keyboard description > Exiting The XKEYBOARD keymap compiler (xkbcomp) reports: > Error: Cannot open "compiled/server-50.xkm" to write keyboard description > Exiting AUDIT: Mon Nov 6 09:38:52 2017: 27087 x2goagent: client 3 rejected from local host The XKEYBOARD keymap compiler (xkbcomp) reports: > Error: Cannot open "compiled/server-50.xkm" to write keyboard description > Exiting * I modified the content of the file /etc/x2go/x2goagent.keyboard like that : rules=evdev but it's always the same I don't know what to do. Thank you, Regards, -- Signature Bruno Joffredo Bruno

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Mint Sonya 18.2
by Robert Dinse 06 Nov '17

06 Nov '17

I upgraded Mint from Serina to Sonya 18.2 and now with x2go I am getting the tiny 680x800 screen related to xrandr version being 1.2 where 1.3 or later is needed. I installed the nightly build which has corrected this problem on other distributions but it did not fix it in mint. Any advice? -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting. Knowledgeable human assistance, not telephone trees or script readers. See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874.

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newbie question multiple monitors
by Thomas Porschberg 01 Nov '17

01 Nov '17

Hi, I installed the server part on my Ubuntu 16.04 PC with two monitors (THis is my workstation I work with every day). $ps -ef | grep x2go root 17045 1 0 11:06 ? 00:00:00 /usr/bin/perl /usr/sbin/x2gocleansessions pberg 20099 7153 0 11:11 ? 00:00:00 /usr/bin/x2godesktopsharing My client is a laptop, also running Ubuntu 16.04. When I create a new session I see on my laptop both physical monitors from the server, divided vertically and of course blurred. This is not usable. Can I somehow the client configure in way that I can switch between the two physical monitors from the server? Best regards Thomas

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