x2go-user February 2020

x2go-user@lists.x2go.org

25 participants
17 discussions

pxeboot in Debian Buster (not booting, which pxelinux.0?)
by Luciano Andino 02 Mar '20

02 Mar '20

Hello, I'm x2go user since some years ago. Now trying to install a new PXEBOOT server. What I did: 1) Updated x2go sources according: https://wiki.x2go.org/doku.php/wiki:repositories:debian 2) Then continued building system with instructions https://wiki.x2go.org/doku.php/doc:howto:tce#building_your_own_x2go-tce_ima… $ apt-get install genisoimage git-core live-build live-config-doc live-manual-html live-boot-doc lsb-release netcat-traditional $ apt-get install apt-cacher-ng $ apt-get install qemu-user-static # dpkg -l|grep x2go ii x2go-keyring 2019.08.20+git20190820.118+10.main.1 all GnuPG keys of all X2Go developers and the X2Go archive rc x2gothinclient-management 1.5.0.1-0x2go2+git20191129.725+10.main.1 all Management tools for X2Go Thin Client chroot server $ mkdir /usr/local/x2gobuild ; cd /usr/local/x2gobuild # then created the three files patchscript/x2go-tce-build/x2go-tce-config # applied patchscript and started to build root@pxeserver:/usr/local/x2gobuild# ./x2go-tce-build .... cryptsetup: WARNING: Couldn't determine root device cryptsetup: ERROR: Couldn't resolve device /dev/sda3 cryptsetup: WARNING: The initramfs image may not contain cryptsetup binaries nor crypto modules. If that's on purpose, you may want to uninstall the 'cryptsetup-initramfs' package in order to disable the cryptsetup initramfs integration and avoid this warning. .... Build is done: './live-build-x2go-20200227200355-netboot-amd64-openbox-magic-pixel-workaround-buster' 641641 bloques [2020-02-27 20:20:07] lb clean P: Cleaning chroot root@pxeserver:/usr/local/x2gobuild# 3) * http server installed. Both x2go-tce.sessions & x2go-tce-filesystem.squashfs are accesible through niginx. root@pxeserver:/usr/local/x2gobuild# cp live-build-x2go-20200227200355-netboot-amd64-openbox-magic-pixel-workaround-buster/x2go-tce-filesystem.squashfs /var/www/html/x2go-tce/ * dhcp server installed and working. 4) Netbooting 4.1) atftp server working 4.2) Copied x2go-tce-vmlinuz and x2go-tce-initrd.img to /srv/tftp/x2go-tce 4.3) created in tftproot "pxelinux.cfg/x2go-tce" (file reference to x2go-tce/vmlinuz and x2go-tce/initrd.img instead, changed that) 4.4) looking for a pxelinux.0 file: 4.4.1) root@pxeserver :/usr/local/x2gobuild/live-build-x2go-20200227200355-netboot-amd64-openbox-magic-pixel-workaround-buster# cp live-image-amd64.netboot.tar /srv/tftp/ root@pxeserver:/usr/local/x2gobuild/live-build-x2go-20200227200355-netboot-amd64-openbox-magic-pixel-workaround-buster# tar xvf live-image-amd64.netboot.tar # copied tftpboot directory to tftproot directory root@pxeserver:/srv/tftp# ls advanced.cfg install.cfg libcom32.c32 libmenu.c32 live menu.cfg pxelinux.cfg stdmenu.cfg x2go-tce hdt.c32 ldlinux.c32 libgpl.c32 libutil.c32 live.cfg pxelinux.0 splash.png vesamenu.c32 ---> Result, system does not boot (ethernet driver fails) or 4.4.2) Using old x2gothinclient_preptftpboot script ---> System boots but login screen offers to connect to an X server somewhere in the Internet (seems is not using sessions file) Thanks in advance, -- Luciano Andino Master en Ing. de Software - BMSTU Ing. en Sistemas de Información - UTN FRSF

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Re: [X2Go-User] x2go-user Digest, Vol 70, Issue 24
by Josh Conway 28 Feb '20

28 Feb '20

Thank you for the rapid response Stefan Baur, Although I do agree that those AV names are, shall we say, 'less reputable', I was only emailing for due diligence in that both FF and Chrome flagged it as malicious. Thank you for addressing my concerns, Josh Conway On Fri, Feb 28, 2020 at 9:32 AM <x2go-user-request(a)lists.x2go.org> wrote: > Send x2go-user mailing list submissions to > x2go-user(a)lists.x2go.org > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.x2go.org/listinfo/x2go-user > or, via email, send a message with subject or body 'help' to > x2go-user-request(a)lists.x2go.org > > You can reach the person managing the list at > x2go-user-owner(a)lists.x2go.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of x2go-user digest..." > > > Today's Topics: > > 1. Credible warning of infected / trojaned X2go windows binary > (Josh Conway) > 2. Re: Credible warning of infected / trojaned X2go windows > binary (Stefan Baur) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 28 Feb 2020 09:09:17 -0500 > From: Josh Conway <jwcrawley(a)gmail.com> > To: x2go-user(a)lists.x2go.org > Subject: [X2Go-User] Credible warning of infected / trojaned X2go > windows binary > Message-ID: > <CACxuvT5Pp7tSgc29tdeurqynrn=wwijRYJi_mb7_k7W6OVL=_ > g(a)mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Greetings, > > Upon downloading the file: > > > https://code.x2go.org/releases/binary-win32/x2goclient/releases/4.1.2.2-202… > > MD5 8b1ac4cb969d116c9303ab3fafe50a01 > SHA-1 ce77b87fd972aa12c74bb36181371034b0bb051d > SHA-256 227857330e14cf88c88159c5439c914ce2e4170c7aa29149641d5df11d1745f0 > > Firefox *and* Google Chrome both throw errors for detected malware. > > Running said file through Virustotal shows the 6 AV products' results: > > Bkav: HW32.Packed. > > Panda: PUP/RemoteAdmin > > Trapmine: Malicious.moderate.ml.score > > Webroot: W32.Ransom.Gen > > Yandex: Trojan.Agent!RIMR9kcXEpU > > Zillya: Trojan.Generic.Win32.1026149 > > > I've attempted to ping people in the freenode #x2go irc room to no avail. > > > Josh Conway >

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Credible warning of infected / trojaned X2go windows binary
by Josh Conway 28 Feb '20

28 Feb '20

Greetings, Upon downloading the file: https://code.x2go.org/releases/binary-win32/x2goclient/releases/4.1.2.2-202… MD5 8b1ac4cb969d116c9303ab3fafe50a01 SHA-1 ce77b87fd972aa12c74bb36181371034b0bb051d SHA-256 227857330e14cf88c88159c5439c914ce2e4170c7aa29149641d5df11d1745f0 Firefox *and* Google Chrome both throw errors for detected malware. Running said file through Virustotal shows the 6 AV products' results: Bkav: HW32.Packed. Panda: PUP/RemoteAdmin Trapmine: Malicious.moderate.ml.score Webroot: W32.Ransom.Gen Yandex: Trojan.Agent!RIMR9kcXEpU Zillya: Trojan.Generic.Win32.1026149 I've attempted to ping people in the freenode #x2go irc room to no avail. Josh Conway

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Chrome warning now when downloading windows installer?
by Jeff Sadowski 27 Feb '20

27 Feb '20

As soon as chrome finishes the download I get a message: dangerous, so Chrome has blocked it. message on the downloaded file. I have not gotten this in the past. Maybe your site has been hacked? Is there a md5 or sha1 hash that I can use that has a gpg signing that I can trust came from the developers? I've seen this with other open source software.

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Linux client connects, but not Windows
by John Stoffel 26 Feb '20

26 Feb '20

Hi Guys, I've been a long time user of x2go and I love it, but recently I've run into an issue where I can connect to my session from a linux desktop, but not from a Windows desktop. Linux Server system: ------------------------------- - It's a VM running with 24gb of RAM and 4 CPUs, running on ESX 6.0 - xfce 4.12 is my session manager and window manager. - CentOS 7.7.1908 (kernel 3.10.0-1062.1.2.el7.x86_64) - I've got the following packages installed: > rpm -qa |grep x2go x2goserver-4.1.0.3-3.el7.x86_64 perl-X2Go-Log-4.1.0.3-3.el7.noarch x2goserver-xsession-4.1.0.3-3.el7.noarch x2goserver-common-4.1.0.3-3.el7.noarch x2goagent-4.1.0.3-3.el7.x86_64 perl-X2Go-Server-4.1.0.3-3.el7.noarch perl-X2Go-Server-DB-4.1.0.3-3.el7.x86_64 - xdpyinfo of the working server session show: name of display: :51.0 version number: 11.0 vendor string: The X.Org Foundation vendor release number: 70000000 X.Org version: 7.0.0 maximum request size: 16777212 bytes motion buffer size: 256 bitmap unit, bit order, padding: 32, LSBFirst, 32 image byte order: LSBFirst number of supported pixmap formats: 7 supported pixmap formats: depth 1, bits_per_pixel 1, scanline_pad 32 depth 4, bits_per_pixel 8, scanline_pad 32 depth 8, bits_per_pixel 8, scanline_pad 32 depth 15, bits_per_pixel 16, scanline_pad 32 depth 16, bits_per_pixel 16, scanline_pad 32 depth 24, bits_per_pixel 32, scanline_pad 32 depth 32, bits_per_pixel 32, scanline_pad 32 keycode range: minimum 8, maximum 255 focus: window 0x4000022, revert to PointerRoot number of extensions: 23 BIG-REQUESTS DAMAGE DOUBLE-BUFFER DPMS GLX MIT-SCREEN-SAVER MIT-SHM RANDR RECORD RENDER SECURITY SGI-GLX SHAPE SYNC X-Resource XC-MISC XFIXES XFree86-Bigfont XINERAMA XInputExtension XKEYBOARD XTEST XVideo Linux desktop: ------------------------------- Fedora 30 (kernel 5.4.21-100.fc30.x86_64) with a 1900x1200 display. - I've got the following packages installed: $ rpm -qa | grep x2go x2goclient-4.1.2.2-1.fc30.x86_64 x2goserver-xsession-4.1.0.3-3.fc30.noarch x2goagent-4.1.0.3-3.fc30.x86_64 x2goserver-common-4.1.0.3-3.fc30.noarch x2goserver-4.1.0.3-3.fc30.x86_64 Thought I'm only using the client, not the server. This pair works just fine, esp since they're across the country from each other with about 80-100ms of delay, but a decently big pipe. Windows Desktop (fails to run session) ------------------------------------------- My failing client is a Windows 10 system, and I just recently installed the latest x2go client to see if that would help. It's running: X2Go Client v. 4.1.2.2 (Qt - 4.8.6) And it's got the same 1900x1200 display attached to the PC, but it also fails when using just the laptop display, or another smaller remote display at home. Annoying for sure! When I connect from the failing client, it just closes the session after quickly opening and showing the windows for a second, then dying. what's the best way to debug this, and is there any better way to provide better debugging for end users when a connection is dropped like this? The session.log file doesn't seem to give any useful info when I connect, it makes the connection, then it suspends almost immediately. Sorry for the crappy cut'n'paste here. Info: Not using local device configuration changes. nxagentReconnectFailedFonts: WARNING! Font server tunneling not retrieved. nxagentReconnectSession: WARNING! Unable to retrieve all the fonts currently in use. Missing fonts have been replaced. nxagentSighupHandler: WARNING! Ignoring the signal in state [SESSION_GOING_UP]. Info: keyboard file created: '/home/stoffj/.x2go/C-stoffj-51-1571665940_stDXFCE_dp24/keyboard' Info: Keycode conversion auto-determined as off Info: re-reading keystrokes configuration Info: using keystrokes file '/home/stoffj/.nx/config/keystrokes.cfg' Warning: ignoring keystroke 'viewport_scroll_up' (already in use by 'viewport_move_up') Warning: ignoring keystroke 'viewport_scroll_up' (already in use by 'viewport_move_up') Warning: ignoring keystroke 'viewport_scroll_right' (already in use by 'viewport_move_right') Warning: ignoring keystroke 'viewport_scroll_right' (already in use by 'viewport_move_right') Warning: ignoring keystroke 'viewport_scroll_down' (already in use by 'viewport_move_down') Warning: ignoring keystroke 'viewport_scroll_down' (already in use by 'viewport_move_down') Current known keystrokes: close_session Ctrl+Alt+t switch_all_screens Ctrl+Alt+f fullscreen Ctrl+Shift+Alt+f minimize Ctrl+Alt+m defer Ctrl+Alt+e ignore Ctrl+Alt+BackSpace force_synchronization Ctrl+Alt+j resize Ctrl+Alt+r viewport_move_left Ctrl+Shift+Alt+Left viewport_move_left Ctrl+Shift+Alt+KP_Left viewport_move_up Ctrl+Alt+Up viewport_move_up Ctrl+Alt+KP_Up viewport_move_right Ctrl+Alt+Right viewport_move_right Ctrl+Alt+KP_Right viewport_move_down Ctrl+Alt+Down viewport_move_down Ctrl+Alt+KP_Down viewport_scroll_left Ctrl+Alt+Left viewport_scroll_left Ctrl+Alt+KP_Left reread_keystrokes Ctrl+Alt+k Session: Session resumed at 'Wed Feb 26 16:53:42 2020'. Info: Screen [0] resized to geometry [1920x1181] fullscreen [1]. Session: Suspending session at 'Wed Feb 26 16:53:44 2020'. Info: Waiting the cleanup timeout to complete. Session: Session suspended at 'Wed Feb 26 16:53:46 2020'.

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Issue With Desktop Sharing Function - No Updates On Client Screen
by Sebastian Schneider 21 Feb '20

21 Feb '20

Hi, Hopefully this is the right list. I have an issue with the client not receiving any feedback from server when using desktop sharing. I am not sure what I am missing. I've included a report with links on the reddit Linux Arch stream but so far no replies: https://www.reddit.com/r/archlinux/comments/f5ud92/x2go_client_server_x2god… Is this a bug or what could the problem be? Cheers Sebastian

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Copy and paste between systems stops working
by Lmhelp1 20 Feb '20

20 Feb '20

Hello, My question is about not being able to copy and paste strings between two systems via X2Go. I have two systems which specifications are: * on the one side, a Linux system: - OS Debian (Buster) - x2goserver (v.4.1.0.3-4) - Openbox (v.3.6.1-8) * on the other side, a Windows system: - OS Windows (8.1 Pro) - x2goclient (v.4.1.2.0-2018-06-22) Here is the problem: as long as I copy and paste strings from the Windows system to a console (xterm) in the Linux system, it works fine. If I start, for example, "gvim foo.txt" which contains the string "foo", select "foo" with the mouse and try to paste it in a Gvim or a Notepad running on the Windows system, the string "foo" is not pasted in the Windows Gvim or Notepad. And starting from this point, I cannot copy and paste anything between the two systems. I have to close all the Windows in the Linux system, close the X2Go session and restart a new one to have copy and paste work again between the two systems. And, as soon as I open a document with Gvim in the Linux system, and try to copy and paste strings to and from it, it malfunctions again. Practically, it becomes very unhandy because I regularly need to copy and paste things that way between the two systems. Can you help me solve that problem? Thanks and best regards. -- Léa

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mount dir
by richard lucassen 20 Feb '20

20 Feb '20

Hello list, I have two x2go servers running windowmaker: 1) same version (Debian Bullseye) 4.1.0.3-5 2) same client configs (except hostnames of course) Everything is ok, except that on one server "shared folders" is not mounted: $ ls -al x2go lrwxrwxrwx 1 richard richard 49 Aug 3 2018 x2go -> /tmp/.x2go-richard/media/disk/_home_richard_x2go/ $ ls -al x2go ls: cannot access 'x2go': No such file or directory There must be missing some Debian package I think. Anyone an idea? R. -- richard lucassen http://contact.xaq.nl/

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Cannot connect to x2goserver anymore
by Lmhelp1 17 Feb '20

17 Feb '20

Hello, I have two systems which specifications are: * on the one side (SIDE_1), a Linux system: - OS Debian (Buster) - x2goserver (v.4.1.0.3-4) - Openbox (v.3.6.1-8) * on the other side (SIDE_2), a Windows system: - OS Windows (8.1 Pro) - x2goclient (v.4.1.2.0-2018-06-22) My problem is the following: I cannot connect to the x2goserver via the x2goclient anymore. It worked yesterday and I don't remember doing anything special that would cause that problem. I have restarted both machines. I can connect to SIDE_1 from SIDE_2 via a SSH session. In the x2goclient logs screen, below are the messages that I get: ------------------------------------------------------------------------------ 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 '10368'. Session: Starting session at 'Fri Feb 14 15:05:15 2020'. Info: Connecting to remote host 'localhost:40048'. Info: Connection to remote proxy 'localhost:40048' 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 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_32'. 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 'localhost:0'. Session: Session started at 'Fri Feb 14 15:05:15 2020'. Warning: Protocol mismatch or no X authentication data. Session: Terminating session at 'Fri Feb 14 15:05:20 2020'. Info: Your session was closed before reaching a usable state. Info: This can be due to the local X server refusing access to the client. Info: Please check authorization provided by the remote X application. Session: Session terminated at 'Fri Feb 14 15:05:20 2020'. Connection timeout, aborting ------------------------------------------------------------------------------ I don't know what to check, what to do to make it work again. Can you help me? Best regards, -- Léa

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X2go on CentOS 8?
by Michael Eager 14 Feb '20

14 Feb '20

http://packages.x2go.org/epel/ doesn't have a subdirectory for CentOS 8. Is there a better X2go repo for CentOS 8? I'm running pyhoca-cli-0.6.1.3 on the client and the server is running x2goserver-4.1.0. I understand that there is a known incompatibility between the two versions which has been fixed upstream.

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x2go-user February 2020