x2go-user

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2322 discussions

I cannot connect to server
by Jana 14 Jan '21

14 Jan '21

Hello! I have x2goserver 4.1.0.3 (running on Linux Mint ver 20.1 with Mate) and two x2goclients (ver 4.1.2.1 on Debian Stable and ver 4.1.2.2 on Archlinux). Server is behind firewall and I am connecting to it via 'ssh -L' tunnel through machine, which is visible to both side. SSH connection from both clients works fine. But if vhile x2go connection from Debian works, I cannot connect from Archlinux and I do not know why - can you help me? In the attachment is two "--debug" client's outputs. The beginnig looks fine on both, but in the "client-arch-bad" outputs somewhere at the line 91 it started to go wrong. Many thanks for help. Jana

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x2gothinclient_create seems to fail
by Rodolphe Catrais 14 Jan '21

14 Jan '21

Hello everybody! I don't know if this is the right place or the right way for asking for help, thank you for pointing me in the good direction if not. Meanwhile, I'm trying to set an x2go TCE by carefully following this how-to: https://wiki.x2go.org/doku.php/wiki:advanced:tce:install <https://wiki.x2go.org/doku.php/wiki:advanced:tce:install> I never get to this point :'During installation you will be asked to configure your thin client's default language and default keyboard settings. Please do so. Hint: make sure you use UTF-8 encoding in your language selection (e.g. en_US.UTF-8, de_DE.UTF-8, etc.).' This is where x2gothinclient_create seems to fail: Calling hook klibc-utils /usr/share/initramfs-tools/scripts/init-bottom/ORDER ignored: not executable /usr/share/initramfs-tools/scripts/init-top/ORDER ignored: not executable /usr/share/initramfs-tools/scripts/local-premount/ORDER ignored: not executable Building cpio /boot/initrd.img-4.19.0-11-amd64.new initramfs find: '/opt/x2gothinclient/chroot/var/lib/x2gothinclient': No such file or directory find: '/opt/x2gothinclient/chroot/var/lib/x2gothinclient': No such file or directory find: '/opt/x2gothinclient/chroot/var/lib/alsa': No such file or directory find: '/opt/x2gothinclient/chroot/var/lib/alsa': No such file or directory X2Go Thin Client Environment: ============================= The X2Go Thin Client Environment is using the following settings: TC_PRETTY_NAME=X2Go-rod TC_VERSION=1.5.0.1 TC_FLAVOUR=displaymanager TC_BASE=/opt/x2gothinclient TC_CONFIG=/opt/x2gothinclient/etc TC_CHROOT=/opt/x2gothinclient/chroot TC_SHELL=bash TC_DISTRO_CODENAME=buster TC_ARCH=amd64 TC_DEBMIRROR_URL=http://ftp.debian.org/debian TC_X2GO_DEBURL=deb http://packages.x2go.org/debian buster extras main TC_HTTP_PROXY= TC_HTTPS_PROXY= TC_FTP_PROXY= TC_MODULE_BLACKLIST=pcspkr TC_TFTP_BOOT=/srv/tftp Edit /etc/x2go/x2gothinclient_settings to change this. Installing X2Go TCE configuration into chroot environment... ------------------------------------------------------------ '/opt/x2gothinclient/etc/x2gothinclient_init.d/005_x2gothinclient-wipe-home' -> '/opt/x2gothinclient/chroot/etc/x2go/x2gothinclient_init.d/005_x2gothinclient-wipe-home' '/opt/x2gothinclient/etc/x2gothinclient_init.d/010_x2gothinclient-fresh-home' -> '/opt/x2gothinclient/chroot/etc/x2go/x2gothinclient_init.d/010_x2gothinclient-fresh-home' '/opt/x2gothinclient/etc/x2gothinclient_init.d/950_x2gothinclient-minidesktop' -> '/opt/x2gothinclient/chroot/etc/x2go/x2gothinclient_init.d/950_x2gothinclient-minidesktop' '/opt/x2gothinclient/etc/x2gothinclient-displaymanager_start' -> '/opt/x2gothinclient/chroot/etc/x2go/x2gothinclient-displaymanager_start' '/opt/x2gothinclient/etc/x2gothinclient_sessions' -> '/opt/x2gothinclient/chroot/etc/x2go/x2gothinclient_sessions' '/opt/x2gothinclient/etc/x2gothinclient-displaymanager_background.svg' -> '/opt/x2gothinclient/chroot/etc/x2go/x2gothinclient-displaymanager_background.svg' cp: cannot stat '/opt/x2gothinclient/etc/freerdp/known_hosts*': No such file or directory The host is a Debian 10 buster, a virtual machine on qemu/kvm. Any idea? Thanks in advance, Rod

2 2

X2go Server Float Windows?
by Rodrigo José Petreça 07 Jan '21

07 Jan '21

Hello Everybody! Please, i have a question! I am migrating an internal server, from fedora 11 + freenxserver, to debian buster + x2go server. The basic are working, but we have a custom application, it's a very simple application. I need to export xterm or gnome-terminal, and execute bash script, this script calls a simple text menu. The menu contains options, and this option calls some programs. on the freenx server i can export terminal and other applications in floating and separate windows, but i can't do this on x2go. When I access the x2go server from the x2go client, I can see all applications on 1 window only, like vnc access. It's possible to configure x2go server or client to float and separate windows? Thanks...

2 5

X2Go Desktop sharing view-only mode?
by Jakob Czapski 28 Dec '20

28 Dec '20

Hello all, please tell me if there is an option on the server side to force all clientside connections to be viewonly? The purpose is that for educational & security purposes clients should not interfere with the presentation nor the system itself. Thank you in advance for your help!

2 1

help
by Theodora Chrysoula 21 Dec '20

21 Dec '20

Hello, I am trying to use X2go to connect to my VM, but every time i open the session X2go fails and i have a message x2goclient.exe has stopped working. Everything was fine, a couple of weeks ago. I have windows 10. Can you imagine what causes the problem? Thanks in advance

1 0

session.log file fills disk
by David Schumm 15 Dec '20

15 Dec '20

We are seeing this on multiple machines where the session.log file is massive. I've seen them as large as 82gb. This of course causes the disk to fill When you attempt to open it it says it's a binary file Server is Centos 7 running x2go server 4.1.0.3-9 Anyone seen this? == This e-mail may contain SEAKR Engineering (SEAKR) Confidential and Proprietary Information. If this message is not intended for you, you are strictly prohibited from using this message, its contents or attachments in any way. If you have received this message in error, please delete the message from your mailbox. This e-mail may contain export-controlled material and should be handled accordingly.

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X2Go fails to connect when SSH config contains multiple jump hosts
by Konrad, Martin 08 Dec '20

08 Dec '20

Hi, I have a few hosts in my ~/.ssh/config file which have ProxyJump lines specifying _multiple_ jump hosts: Host foo ForwardAgent yes ProxyJump first.example.com, second.example.com It seems like X2Go doesn't like this kind of configuration. I complains when I try to establish any connection (even when trying to connect to other hosts which don't have a line like this): "Cannot connect to first.example.com:22 Failed to process system configuration" Everything works fine in cases that require only a single jump host. As far as I can tell from the ssh_config (5) man page my configuration with multiple jump hosts is valid. Any suggestions how to deal with this? Thanks a lot, Martin -- Martin Konrad Facility for Rare Isotope Beams Michigan State University 640 South Shaw Lane East Lansing, MI 48824-1321, USA Tel. 517-908-7253 Email: konrad(a)frib.msu.edu

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What is the hash algorithm / format used for the host key hash during connection instantiation?
by Stefan Mätje 07 Dec '20

07 Dec '20

Hi, I'm using x2go to connect from a Linux Mint (19) machine to an Ubuntu server using a RSA key over SSH. During the connection instantiation x2go presents me the following question: Der Server ist unbekannt. Vertrauen Sie diesem Host-Key? Hash des öffentlichen Schlüssels: remote.server.com:22 - d7:2e:e0:ae:27:7a:e5:33:59:6d:00:12:75:22:0a:c6:9a:10:31:a9 I. e. "The server is unkown. Do you trust this host key?" I now have problems to match the presented fingerprint hash to the host identity keys that are present on the server machine under /etc/ssh/ssh_host_*key*. When I later inspect the .ssh/known_hosts file on my Linux Mint machine (client side) I can match the public key there to the public host identity key on the server side that has the following fingerprints (displayed with 'ssh-keygen -l -E {md5|sha256} -f ssh_host_ecdsa_key'): ssh_host_ecdsa_key.pub: 256 SHA256:3vf9PbLKhlaFpff7SxpaDLyrfYJF8iJ+Px3bMzLNY2U root(a)internal.server.com (ECDSA) 256 MD5:7b:9a:76:4b:58:ce:87:bf:3f:56:41:a9:7c:f8:bf:e9 root(a)internal.server.com (ECDSA) Neither of these fingerprints can be matched to the fingerprint / hash that x2go presents to me. The MD5 hash line is similar but shorter (only 16 hash bytes aka. 128 bits that matches a MD5 sum length). The x2go hash has 20 bytes (160 bits) hash length. The question is how can I reliably match the fingerprint x2go presents to me to the right host ID hash. Am I comparing / expecting the wrong keys? Can somebody please shed some light on this issue. Best regards, Stefan

2 3

Help with Login
by a.tierney＠frigel.com 18 Nov '20

18 Nov '20

After a Windows update about a month ago, my X2Go stopped working. I can log in, but I get this error message" Loop: PANIC! Can't open options file '/cygdrive/C/Users/Andy'. Error is 2 'No such file or directory'. Error: Can't open options file '/cygdrive/C/Users/Andy'. Error is 2 'No such file or directory'. Loop: PANIC! Can't open options file '/cygdrive/C/Users/Andy'. Error is 2 'No such file or directory'. Error: Can't open options file '/cygdrive/C/Users/Andy'. Error is 2 'No such file or directory'. Loop: PANIC! Can't open options file '/cygdrive/C/Users/Andy'. Error is 2 'No such file or directory'. Error: Can't open options file '/cygdrive/C/Users/Andy'. Error is 2 'No such file or directory'. Connection timeout, abortingLoop: PANIC! Can't open options file '/cygdrive/C/Users/Andy'. Error is 2 'No such file or directory'. Error: Can't open options file '/cygdrive/C/Users/Andy'. Error is 2 'No such file or directory'. Connection timeout, aborting I am not an IT guru, so I need some help deciphering what this means. Any help would be greatly appreciated. Thanks, Andy Andy Tierney Service Manager Frigel North America 150 Prairie Lake Road East Dundee, IL 60118 O: 847 540-0160 X: 125 C: 847 624-9090 a.tierney(a)frigel.com <mailto:a.tierney@frigel.com> www.frigel.com <http://www.frigel.com/> -- This email has been checked for viruses by AVG. https://www.avg.com

2 2

Terminating session when connection drops takes a long time
by James Bowery 18 Nov '20

18 Nov '20

As previously mentioned I have a flakey internet connection and must frequently reestablish my x2go connection but this is compounded by a problem: When the connection is momentarily interrupted getting reconnected takes a while because of strange behavior in trying to close out and reopen the x2go session: Click the x to close the window and I'm asked "No response received from the remote server. Do you want to terminate the current session?" which is not strange at all but when I click "yes" it doesn't do so immediately, but can take quite a while. Other windows pop up with additional questions depending on what I do to overcome the delay. The closest thing I've discovered to this is an issue from 8 years ago: https://x2go-user.x2go.narkive.com/4jvHBucc/session-resuming-after-disconne… Is there a configuration parameter or something I can set nowadays?

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