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x2go session resume always fails (long post)
by Norm Green 05 Jul '21

05 Jul '21

I'm having a problem resuming x2go sessions which now fails 100% of the time. The only way to use x2go is to kill all x2go processes on the server and restart x2goserver service, which causes the suspended session to be lost. This is driving me crazy. Any hints on how to debug this? Client is x2go 4.1.2.2 on windows 10 server is x2go 4.1.0.4-0 on Unbuntu 18.04 At the point the session is suspended, everything looks normal: I have a session and the x2goagent is still running. normg@moop>x2golistsessions 26617|normg-50-1625002538_stDXFCE_dp32|50|moop|S|2021-06-29T14:35:39|6fa8d13074afab1c2d58dee02b1085d8|10.94.155.18|43587|43588|2021-06-29T14:50:02|normg|1016|43589|-1|-1 normg@moop>cat state SUSPENDED normg@moop>cat options nx/nx,link=adsl,pack=16m-jpeg-9,limit=0,root=/tmp/.x2go-normg/C-normg-50-1625002538_stDXFCE_dp32,cache=8M,images=32M,type=unix-kde-depth_32,id=normg-50-1625002538_stDXFCE_dp32,cookie=6fa8d13074afab1c2d58dee02b1085d8,errors=/tmp/.x2go-normg/C-normg-50-1625002538_stDXFCE_dp32/session.log_errors,kbtype=null/null,geometry=800x600,xinerama=0,resize=1,fullscreen=0,accept=localhost,listen=43587,clipboard=both,client=linux,menu=0,state=/tmp/.x2go-normg/C-normg-50-1625002538_stDXFCE_dp32/state:50 normg@moop>tail session.log autograb : Ctrl+Alt+g dump_clipboard : Ctrl+Shift+Alt+c Info: keyboard blocking directory created: '/home/normg/.x2go/C-normg-50-1625002538_stDXFCE_dp32/keyboard' Info: Keycode conversion is off Session: Session started at 'Tue Jun 29 14:35:50 2021'. Info: Screen [0] resized to geometry [800x600] fullscreen [0]. Info: Screen [0] resized to geometry [3440x1387] fullscreen [0]. Session: Suspending session at 'Tue Jun 29 14:50:02 2021'. Info: Waiting the cleanup timeout to complete. Session: Session suspended at 'Tue Jun 29 14:50:05 2021'. /tmp/.x2go-normg/C-normg-50-1625002538_stDXFCE_dp32 -------------------------------------------------------------------------- When I attempt to resume I get this error on the windows side: The remote proxy closed the connection while negotiating the session. When I attempt to resume there are errors in the log. For one thing, the "options" file is now size 0. I can't tell if I have an ssh tunnel problem or an x2go problem. The session log after the resume looks like this. Session: Resuming session at 'Tue Jun 29 14:54:40 2021'. Warning: Option file doesn't contain a port specification. Loop: PANIC! Can't read options from file '/tmp/.x2go-normg/C-normg-50-1625002538_stDXFCE_dp32/options'. Error is 4 'Interrupted system call'. Error: Can't read options from file '/tmp/.x2go-normg/C-normg-50-1625002538_stDXFCE_dp32/options'. Error is 4 'Interrupted system call'. Error: Parsing of NX transport options failed. _X11TransSocketConnectConnInfo: Cannot create the NX transport. Loop: WARNING! Signal 'SIGINT' not installed in process with pid '26617'. Warning: Signal 'SIGINT' not installed in process with pid '26617'. Loop: WARNING! Signal 'SIGTERM' not installed in process with pid '26617'. Warning: Signal 'SIGTERM' not installed in process with pid '26617'. Loop: WARNING! Signal 'SIGHUP' not installed in process with pid '26617'. Warning: Signal 'SIGHUP' not installed in process with pid '26617'. Loop: WARNING! Signal 'SIGCHLD' not installed in process with pid '26617'. Warning: Signal 'SIGCHLD' not installed in process with pid '26617'. Session: Display failure detected at 'Tue Jun 29 14:54:40 2021'. Session: Suspending session at 'Tue Jun 29 14:54:40 2021'. NXPROXY - Version 3.5.99.26 Info: Proxy running in client mode with pid '26617'. Session: Starting session at 'Tue Jun 29 14:54:40 2021'. Loop: PANIC! Call to bind failed for x11. Error is 98 'Address already in use'. Error: Call to bind failed for x11. Error is 98 'Address already in use'. Session: Session terminated at 'Tue Jun 29 14:54:40 2021'. Session: Suspending session at 'Tue Jun 29 14:54:40 2021'. Session: Suspending session at 'Tue Jun 29 14:54:45 2021'. Session: Suspending session at 'Tue Jun 29 14:54:50 2021'. Session: Suspending session at 'Tue Jun 29 14:54:55 2021'. cat state RESUMING >tail /var/log/auth.log Jun 29 14:36:37 moop sshd[22738]: pam_unix(sshd:session): session closed for user normg Jun 29 14:36:37 moop su[25244]: pam_unix(su:session): session closed for user root Jun 29 14:36:37 moop systemd-logind[2033]: Removed session 30. Jun 29 14:50:05 moop sshd[25879]: pam_unix(sshd:session): session closed for user normg Jun 29 14:52:18 moop sshd[3540]: rexec line 16: Deprecated option UsePrivilegeSeparation Jun 29 14:52:18 moop sshd[3540]: rexec line 19: Deprecated option KeyRegenerationInterval Jun 29 14:52:18 moop sshd[3540]: rexec line 20: Deprecated option ServerKeyBits Jun 29 14:52:18 moop sshd[3540]: rexec line 32: Deprecated option RSAAuthentication Jun 29 14:52:18 moop sshd[3540]: rexec line 39: Deprecated option RhostsRSAAuthentication Jun 29 14:52:18 moop sshd[3540]: reprocess config line 32: Deprecated option RSAAuthentication Jun 29 14:52:18 moop sshd[3540]: reprocess config line 39: Deprecated option RhostsRSAAuthentication Jun 29 14:52:18 moop sshd[3540]: Accepted publickey for normg from 10.94.155.18 port 62301 ssh2: RSA SHA256:7IZ9shZ11Cs+7I+F9oGX+J/HwXehqo2WuO+DIqri8ag Jun 29 14:52:18 moop sshd[3540]: pam_unix(sshd:session): session opened for user normg by (uid=0) Jun 29 14:52:18 moop systemd-logind[2033]: New session 39 of user normg. Jun 29 14:54:34 moop sshd[4976]: rexec line 16: Deprecated option UsePrivilegeSeparation Jun 29 14:54:34 moop sshd[4976]: rexec line 19: Deprecated option KeyRegenerationInterval Jun 29 14:54:34 moop sshd[4976]: rexec line 20: Deprecated option ServerKeyBits Jun 29 14:54:34 moop sshd[4976]: rexec line 32: Deprecated option RSAAuthentication Jun 29 14:54:34 moop sshd[4976]: rexec line 39: Deprecated option RhostsRSAAuthentication Jun 29 14:54:35 moop sshd[4976]: reprocess config line 32: Deprecated option RSAAuthentication Jun 29 14:54:35 moop sshd[4976]: reprocess config line 39: Deprecated option RhostsRSAAuthentication Jun 29 14:54:36 moop sshd[4976]: Accepted publickey for normg from 10.94.155.18 port 61095 ssh2: RSA SHA256:g5I1h8qQIEpuSkJl3+1D6VdhSAB89gJO3cGgVzZBfP8 Jun 29 14:54:36 moop sshd[4976]: pam_unix(sshd:session): session opened for user normg by (uid=0) Jun 29 14:54:36 moop systemd-logind[2033]: New session 40 of user normg. Jun 29 14:54:43 moop sshd[5048]: error: connect_to localhost port 43587: failed. Jun 29 14:54:43 moop sshd[5048]: channel_by_id: 0: bad id: channel free Jun 29 14:54:43 moop sshd[5048]: Disconnecting user normg 10.94.155.18 port 61095: ieof packet referred to nonexistent channel 0 Jun 29 14:54:43 moop sshd[4976]: pam_unix(sshd:session): session closed for user normg Jun 29 14:55:11 moop systemd-logind[2033]: Removed session 40. >tail /var/log/syslog Jun 29 14:54:06 moop snmpd[2635]: message repeated 3 times: [ error on subcontainer 'ia_addr' insert (-1)] Jun 29 14:54:36 moop systemd[1]: Started Session 40 of user normg. Jun 29 14:54:36 moop snmpd[2635]: error on subcontainer 'ia_addr' insert (-1) Jun 29 14:55:06 moop snmpd[2635]: error on subcontainer 'ia_addr' insert (-1) Jun 29 14:55:23 moop dhclient[1959]: DHCPREQUEST of 10.94.141.31 on br0 to 10.94.141.7 port 67 (xid=0x183e67fb) Jun 29 14:55:23 moop dhclient[1959]: DHCPACK of 10.94.141.31 from 10.94.141.7 Jun 29 14:55:23 moop dhclient[1959]: bound to 10.94.141.31 -- renewal in 3565 seconds. Jun 29 14:55:36 moop snmpd[2635]: error on subcontainer 'ia_addr' insert (-1)

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I am overwhelmed by the sheer number of open source remote desktop software in the world
by Turritopsis Dohrnii Teo En Ming 03 Jul '21

03 Jul '21

Subject: I am overwhelmed by the sheer number of open source remote desktop software in the world Good day from Singapore, I am overwhelmed by the sheer number of open source remote desktop software in the world. How many open source remote desktop software projects are there in the world? There are simply too many choices! I don't know how to choose! Could you recommend some of the best open source remote desktop software? Thank you very much for your kind assistance. Mr. Turritopsis Dohrnii Teo En Ming, 43 years old as of 3rd July 2021, is a TARGETED INDIVIDUAL living in Singapore. He is an IT consultant with a System Integrator (SI)/computer firm in Singapore. He is an IT enthusiast. -- -----BEGIN EMAIL SIGNATURE----- The Gospel for all Targeted Individuals (TIs): [The New York Times] Microwave Weapons Are Prime Suspect in Ills of U.S. Embassy Workers Link: https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html ******************************************************************************************** Singaporean Targeted Individual Mr. Turritopsis Dohrnii Teo En Ming's Academic Qualifications as at 14 Feb 2019 and refugee seeking attempts at the United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 2019) and Australia (25 Dec 2019 to 9 Jan 2020): [1] https://tdtemcerts.wordpress.com/ [2] https://tdtemcerts.blogspot.sg/ [3] https://www.scribd.com/user/270125049/Teo-En-Ming -----END EMAIL SIGNATURE-----

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Zoom Desktop Client will not start over X2Go
by Justin Paulsen 02 Jul '21

02 Jul '21

Hello, When I connect over X20go to my Debian 10.9 workstation and try to start the Zoom Desktop Client it crashes immediately without even showing up. If I start it on the workstation locally it starts without issue. Has anyone else run into this issue, and if so have you found a solution? Use case: Sharing a window on the remote system during a meeting. Sharing the entire x20go session window is not desirable. Thank you!

4 5

x2gothinclient TCE-nfs x2gothinclient_usbmount
by ovt＠zaokknm.ru 02 Jul '21

02 Jul '21

1 0

x2gothinclient TCE-nfs -x-session break
by ovt＠zaokknm.ru 02 Jul '21

02 Jul '21

1 0

bell
by richard lucassen 30 Jun '21

30 Jun '21

I run x2go server (custom: /usr/bin/wmaker). When starting WindowMaker I run: xset b off which should switch off the bell. But quite often the bell still works, even after logging out and in. Anyone a hint? R. -- richard lucassen http://contact.xaq.nl/

2 5

Windows UAC Prompts
by Tobias Botens 28 Jun '21

28 Jun '21

Hey, during the installation of x2go on Windows 10 we are getting Windows UAC-Prompts. We want to distribute the Software via our Software-Distribution Product. How can we achieve a "silent Installation" without these prompts. If needed, we will create the firewall-Rules manually in our deployment-process. Kind Regards Tobias Botens

2 1

x2gothinclient TCE-nfs -Session break
by ovt＠zaokknm.ru 25 Jun '21

25 Jun '21

1 0

Problem with ALT GR key wth linux client
by Stefan Günther 23 Jun '21

23 Jun '21

Hello, I'm running the following setup: X2Go Server 4.1.0.3-5 on Ubuntu 20.04 with XFCE X2Go Client 4.1.2.2-0 on Ubuntu 18.0.4 X2Go Client 4.1.2.2 on Windows 10 On the Linux client I have removed the directories ~/x2go and ~/.x2goclient. I now connect to the server and open a terminal windows. Pressing ALTGR + 7 gives me a "7", STRG+ALT+7 gives me a "7", too. Pressing the up arrow key, doesn't display the last command, instead I get the error, that xfce-screenshooter couldn't be started. I found some older posting about this problem and followed the suggestions: setxkbmap -print xkb_keymap { xkb_keycodes { include "xfree86+aliases(qwertz)" }; xkb_types { include "complete" }; xkb_compat { include "complete" }; xkb_symbols { include "pc+de(nodeadkeys)+inet(pc105)+group(switch)" }; xkb_geometry { include "pc(pc105)" }; }; stefan@x2go:~$ setxkbmap de stefan@x2go:~$ setxkbmap -print xkb_keymap { xkb_keycodes { include "xfree86+aliases(qwertz)" }; xkb_types { include "complete" }; xkb_compat { include "complete" }; xkb_symbols { include "pc+de+inet(pc105)+group(switch)" }; xkb_geometry { include "pc(pc105)" }; }; But even after setting the keymap to "de" I get "7" instead of "{". The strange thing is, that if I use the windows x2go client, everything is fine. The bracket is displayed and the arrow key is working as expected. Does anyone has an idea or suggestion to this? Thanks for any help, Stefan

2 2

High latency in Java based applications (dbeaver)
by Tom Korach 23 Jun '21

23 Jun '21

Hi, When using X2Go to work on Java-based applications (specifically, the Eclipse-based dbeaver dbeaver.io), there is a considerable latency. It's particularly sever when presenting dialogs, with some of them taking 3-8 second to appear (vs. <1 second locally). The raw latency from the machine to the server is quite low (10-15 ms), and: 1. Other application (via X2Go) work faster (although not completely latency-free). 2. The same program (dbeaver) works almost smoothly with other remote-desktops (e.g. NoMachine). How can this be debugged? What else can be done to improve it? Details: - which operating systems and versions are being used on the server and client, Server: Ubuntu 20.04. Client: Edition Windows 10 Home Version 20H2 Installed on ‎5/‎4/‎2021 OS build 19042.1052 Experience Windows Feature Experience Pack 120.2212.2020.0 - which versions of X2GoServer and X2GoClient are being used Client: 4.1.2.2 (Qt 4.8.6) Server: x2goserver 4.1.0.3-5 - any changes you may have made to the default configuration of the server, No changes were made. - the session settings used on the client Connection: WAN Resolution: 1920x1080 Display DPI 96 Compression: 16m-jpeg Image quality: 5 Desktop environment: XFCE. - the name of the application you are experiencing issues with dbeaver (dbeaver.io)

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