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x2gomountdirs fails on Debian Stable (x2goclient 4.1.2.2)
by edv＠dgb-bwt.de 17 Dec '24

17 Dec '24

Dear All, first of all: great software, we (a small educational organisation for trade union members) have been working with it for years. TL;DR: shared folders do not work, when I use the GUI to mount a share directory ~/media/disk/SHARE-NAME remains empty. Our Setup: * x2goserver on a computer behind a rounter with portforwarding and dyndns * x2goclient on a computer behind another router * both debian stable The connection from x2goclient to x2goserver works (I mean: I get my remote desktop and work there), but when I want to use/mount a shared folder, nothing happens. I mean: If I want to access a folder on the x2goclient via the x2go function “shared folders” from the x2goserver, the directory ~/media/disk/SHARE-NAME remains empty. When I trigger the release in the GUI of x2goclient, the logs say: on x2goclient ----------- Nov 06 00:00:02 x2go /usr/bin/x2gomountdirs[295124]: insertion of shared folder into session DB has been successful Nov 06 00:00:02 x2go /usr/bin/x2gomountdirs[295124]: SSH key file has arrived: /home/serveruser/.x2go/ssh/key.cicFLi Nov 06 00:00:02 x2go /usr/bin/x2gomountdirs[295124]: SSH host key has arrived: /home/serveruser/.x2go/ssh/key.cicFLi.ident Nov 06 00:00:02 x2go /usr/bin/x2gomountdirs[295124]: executing: timeout 30 sshfs -o modules=iconv,from_code=UTF-8,to_code=UTF-8 -o idmap=user,uid=`id -u`,gid=`id -g`,default_permissions,ServerAliveInterval=300,IdentityFile=/home/serveruser/.x2go/ssh/key.cicFLi,UserKnownHostsFile=/home/serveruser/.x2go/ssh/key.cicFLi.ident "clientuser"@127.0.0.1:"/home/clientuser/Desktop" "/tmp/.x2go-serveruser/media/disk/_home_clientuser_Desktop" -p 53200 Nov 06 00:00:03 x2go /usr/bin/x2gomountdirs[295124]: WARNING: mounting of /home/clientuser/Desktop failed ----------- on x2goserver ----------- Nov 06 00:00:02 kweezy sshd[244865]: error: kex_exchange_identification: Connection closed by remote host Nov 06 00:00:02 kweezy sshd[244865]: Connection closed by 127.0.0.1 port 52856 Nov 06 00:00:03 kweezy sshd[244871]: Failed password for clientuser from 127.0.0.1 port 52872 ssh2 Nov 06 00:00:03 kweezy sshd[244871]: Failed password for clientuser from 127.0.0.1 port 52872 ssh2 Nov 06 00:00:03 kweezy sshd[244871]: Connection closed by authenticating user clientuser 127.0.0.1 port 52872 [preauth] ----------- Terminal-Output of 'x2goclient --debug --libssh-debug' on x2goclient ----------- x2go-DEBUG-../src/sshmasterconnection.cpp:2121> EOF on channel 0x7f7ed4064930; SshProcess object: 4 x2go-DEBUG-../src/sshmasterconnection.cpp:2222> EOF sent. x2go-DEBUG-../src/sshmasterconnection.cpp:2224> Channel closed. x2go-DEBUG-../src/sshmasterconnection.cpp:2165> EOF on channel 0x7f7ed40586c0; SshProcess object: 17 x2go-DEBUG-../src/sshmasterconnection.cpp:2222> EOF sent. x2go-DEBUG-../src/sshmasterconnection.cpp:2224> Channel closed. x2go-DEBUG-../src/sshprocess.cpp:532> SSH finished: raw output (stdout): "X2GODATABEGIN:d396bc9c-fce4-420a-9c3a-b405fddfc022\ndirs:/home/clientuser/Desktop__REVERSESSH_PORT__53200\nssh port:53200\nHost:127.0.0.1\nUser:clientuser\ninserted, timeout 30 sshfs -o modules=iconv,from_code=UTF-8,to_code=UTF-8 -o idmap=user,uid=`id -u`,gid=`id -g`,default_permissions,ServerAliveInterval=300,IdentityFile=/home/serveruser/.x2go/ssh/key.cicFLi,UserKnownHostsFile=/home/serveruser/.x2go/ssh/key.cicFLi.ident \"clientuser\"@127.0.0.1:\"/home/clientuser/Desktop\" \"/tmp/.x2go-serveruser/media/disk/_home_clientuser_Desktop\" -p 53200\nX2GODATAEND:d396bc9c-fce4-420a-9c3a-b405fddfc022\n" x2go-DEBUG-../src/sshprocess.cpp:543> SSH finished: true - "dirs:/home/clientuser/Desktop__REVERSESSH_PORT__53200\nssh port:53200\nHost:127.0.0.1\nUser:clientuser\ninserted, timeout 30 sshfs -o modules=iconv,from_code=UTF-8,to_code=UTF-8 -o idmap=user,uid=`id -u`,gid=`id -g`,default_permissions,ServerAliveInterval=300,IdentityFile=/home/serveruser/.x2go/ssh/key.cicFLi,UserKnownHostsFile=/home/serveruser/.x2go/ssh/key.cicFLi.ident \"clientuser\"@127.0.0.1:\"/home/clientuser/Desktop\" \"/tmp/.x2go-serveruser/media/disk/_home_clientuser_Desktop\" -p 53200\n" (17). x2go-DEBUG-../src/onmainwindow.cpp:8895> Post-cleanup for startX2goMount triggered. x2go-DEBUG-../src/onmainwindow.cpp:8920> Deactivating public key from "/home/clientuser/.x2go/ssh/gen/key.cicFLi.pub" again. ----------- I then tried to reach the client from the x2goserver via SSH through the SSH tunnel that was set up: ----------- serveruser@x2goserver:~$ ssh clientuser(a)127.0.0.1 -p 53200 -i /home/serveruser/.x2go/ssh/key.cicFLi Warning: Identity file /home/serveruser/.x2go/ssh/key.WEIIYY not accessible: No such file or directory. clientuser(a)127.0.0.1's password: ----------- This generates a message in the x2goclient log -- so the tunnel back to the client has been set up, but the temporary SSH key is no longer available. A login with the password of clientuser is not possible. x2go's sshd on x2goclient is running: ----------- clientuser@x2goclient:~$ px aux | grep sshd clientuser 237626 0.0 0.0 15680 9496 pts/6 S+ Nov05 0:00 sshd: /usr/sbin/sshd -f /home/clientuser/.x2go/etc/sshd_config -h /home/clientuser/.x2go/etc/ssh_host_rsa_key -D -p 7022 [listener] 0 of 10-100 startups ----------- The specific sshd_config looks like this: ----------- StrictModes no UsePrivilegeSeparation no PidFile "/home/clientuser/.x2go/var/sshd.pid" AuthorizedKeysFile "/home/clientuser/.x2go/.ssh/authorized_keys" Subsystem sftp /usr/lib/openssh/sftp-server ----------- Any idea what I could try next? greets michel

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X2Go: The Spread 2024 recordings online/X2Go and orca e.V. Sponsorship Drive
by Vorstand ORCA e.V. 14 Dec '24

14 Dec '24

Dear $ALL, Some of you might have missed it, as it wasn't announced on the mailing lists, only on the Wiki, due to massive time constraints/understaffing, but - we did indeed have an X2Go: The Spread 2024 virtual event. Which makes 2024 the first, and probably the only year where we had both an in-person/hybrid "X2Go: The Gathering" and a virtual "X2Go: The Spread" event. You can read up about what you've missed on <https://wiki.x2go.org/doku.php/events:x2go-spread-2024>, where you will find links to recordings of each day (save for Thursday - that was a live debugging session, so we didn't bother recording it). Here's a quick overview of the presentations/discussions: Monday * X2Go's State of the Union, Part 2 (Part 1 was presented at X2Go: The Gathering 2024) * X2Go's Funding Situation, Part 1: Sovereign Tech Fund Tuesday * Demo: Portable DHCP proxy with X2Go-TCE-live Netboot (a follow-up to X2Go: The Spread 2023's Thursday presentation) * Progress Report re: KDrive on arm64 * OSUOSL Behind-The-Scenes Update Wednesday * X2Go's Funding Situation, Part 2: orca/Betterplace * Gitlab Status Report Thursday * KDrive debugging Friday * Secure Remote Access Even to Old Windows XP Systems - Thanks to X2Go and a Raspberry Pi * NX-libs update * “Mr. Eyebot V2.0” - Quick Explanation and Demo Or, if you want to watch all recordings back to back, head straight over to YouTube, where we have prepared a playlist for you: <https://youtube.com/playlist?list=PLWDo4PkY3E0My_exV1bT7z5vOA63P5mqN&featur…> If you like what we're doing, now would be a good time to help us out financially. While we have received some donations to the general X2Go donation pool, which we can reassign as needed, donations towards our event budget have stalled for the last 5 months or so. This budget is used to cover costs for having handouts/posters printed for our booths, as well as travel/accommodation costs for our volunteers. It would be really cool if you could send some $$$/€€€/£££/¥¥¥ our way, so we can reimburse our volunteers, who have been covering all the costs up-front our of their own pockets. We can accept donations via PayPal, Credit Card, Direct Debit, giropay/paydirect and wire transfer. Best of all, donations towards X2Go and orca are usually tax deductible for German tax subjects. Until December 29th, non-recurring donations up to 100 Euro made on any Sunday during December 2024 will be matched by Betterplace with an additional 15%. This offer is only valid until a funding pool of 4 000 Euro is depleted (per Sunday). So the earlier you donate on these Sundays, the higher the chance that your donation will receive the bonus. As tomorrow is one of those Sundays, we hope you are willing and able to chip in, so we can keep hosting and attending events like these. To donate towards X2Go's events (posters, handouts, travel, lodging, …), please use one of these links: * English-language donation form: <https://www.betterplace.org/en/projects/131360?wirwunder=235> * German-language donation form: <https://www.betterplace.org/de/projects/131360?wirwunder=235> Further donation links (infrastructure, X2Go in general, orca e.V.) can be found right at the very top of the X2Go Wiki: <https://wiki.x2go.org/> If times are rough for you and you can't afford to donate, don't feel bad! You can also help us by forwarding this announcement to whomever you seem fit - e.g. your local Linux user group, your social media followers, etc. Another way to help us is to be vocal about what you need X2Go for and how it would hurt you if it would no longer be available - we're trying to apply for public funding, so if you're using X2Go in the public sector (i.e. education, research, health care, energy, industry), please do let us know how X2Go ceasing to exist would affect you. Kind Regards, Stefan Baur, first chairman of the board, Open Remote Computing Association - orca e.V.

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Reminder: X2Go and orca e.V. Sponsorship Drive (100% Matching) Tomorrow, 2024-12-06
by Vorstand ORCA e.V. 05 Dec '24

05 Dec '24

Dear $ALL, This is just a quick reminder that there will be another X2Go and orca e.V. sponsorship drive tomorrow, starting at 09:00 CET. We are still in need of almost 300 EUR to cover this year's hosting costs, and we're a good 2 100 EUR short in the "events" category, covering costs relating having handouts/posters printed for our booths, and travel/accommodation costs for our volunteers. Non-recurring donations up to 100 Euro made on Friday, 2024-12-06 (starting 09:00 CET and ending 23:59 CET) will be matched 100% by the Commercial and Savings Bank Ulm. This offer is only valid until a funding pool of 10 000 Euro is depleted. So the earlier you donate (past 09:00 CET) on this particular day, the higher the chance that your donation will receive the bonus. The donation links can be found right at the very top of the X2Go Wiki: <https://wiki.x2go.org/> To donate towards X2Go's events (posters, handouts, travel, lodging, …), please use one of these: * English-language donation form: <https://www.betterplace.org/en/projects/131360?wirwunder=235> * German-language donation form: <https://www.betterplace.org/de/projects/131360?wirwunder=235> To donate towards X2Go's infrastructure (hosting costs and the like), please use one of these: * English-language donation form: <https://www.betterplace.org/en/projects/131358?wirwunder=235> * German-language donation form: <https://www.betterplace.org/de/projects/131358?wirwunder=235> If times are rough for you and you can't afford to donate, don't feel bad! You can also help us by forwarding this announcement to whomever you seem fit - e.g. your local Linux user group, your social media followers, etc. Another way to help us is to be vocal about what you need X2Go for and how it would hurt you if it would no longer be available - we're trying to apply for public funding, so if you're using X2Go in the public sector (i.e. education, research, health care, energy, industry), please do let us know how X2Go ceasing to exist would affect you. Kind Regards, Stefan Baur, first chairman of the board, Open Remote Computing Association - orca e.V.

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Upcoming X2Go and orca e.V. Sponsorship Drives - Starting Tomorrow, 2024-12-01
by Vorstand ORCA e.V. 30 Nov '24

30 Nov '24

Dear $ALL, As we're approaching the end of the year, we can't help but notice that X2Go is running low on funds. We are still in need of almost 300 EUR to cover this year's hosting costs, and we're a good 2 100 EUR short in the "events" category, covering costs relating having handouts/posters printed for our booths, and travel/accommodation costs for our volunteers. It would be really cool if you could send some $$$/€€€/£££/¥¥¥ our way, so we can keep advocating for X2Go and free remote desktop/remote application projects in general, but also to keep our servers running. We can accept donations via PayPal, Credit Card, Direct Debit, giropay/paydirect and wire transfer. Best of all, donations towards X2Go and orca are usually tax deductible for German tax subjects. There are two sponsorship drives coming up, the first of them starting tomorrow: 1) Non-recurring donations up to 100 Euro made on any Sunday during December 2024 will be matched by Betterplace with an additional 15%. This offer is only valid until a funding pool of 4 000 Euro is depleted (per Sunday). So the earlier you donate on these Sundays, the higher the chance that your donation will receive the bonus. 2) Non-recurring donations up to 100 Euro made on Friday, 2024-12-06 (starting 09:00 CET and ending 23:59 CET) will be matched 100% by the Commercial and Savings Bank Ulm. This offer is only valid until a funding pool of 10 000 Euro is depleted. So the earlier you donate (past 09:00 CET) on this particular day, the higher the chance that your donation will receive the bonus. The donation links can be found right at the very top of the X2Go Wiki: <https://wiki.x2go.org/> If times are rough for you and you can't afford to donate, don't feel bad! You can also help us by forwarding this announcement to whomever you seem fit - e.g. your local Linux user group, your social media followers, etc. Another way to help us is to be vocal about what you need X2Go for and how it would hurt you if it would no longer be available - we're trying to apply for public funding, so if you're using X2Go in the public sector (i.e. education, research, health care, energy, industry), please do let us know how X2Go ceasing to exist would affect you. Kind Regards, Stefan Baur, first chairman of the board, Open Remote Computing Association - orca e.V.

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x2go with Yubico Authenticator - FIDO2 / WebAuthn
by x2go_org.only676＠silomails.com 28 Nov '24

28 Nov '24

Hi All I have a question using Yubico Authenticator through an x2go session. I apologize for asking this question multiple times but I finally found the mailing list, so I'm posting the question here If the question had already been answered, in the libera chat, could the answer pls be reposted here? I'm interested in using FIDO2/ WebAuthn (with Yubico Authenticator in a remote machine (machine B), accessing the Yubikey plugged into the local machine (machine A) My Yubico Authenticator on machine B can access FIDO2 / WebAuthn of the Yubikey plugged into machine A, by using usbip, and if I am logged into the machine B's terminal directly But if I use x2go to remote from A to B, trying to use FIDO2 / WebAuthn on the remoted machine B to machine A's yubikey (connected using usbip) stops working So because it works successfully with usbip without the x2go session, but stops working with the x2go session connected, it seems like there's something about the x2go session to cause the FIDO2 / WebAuthn to stop working. Thoughts? best regards

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The remote NX proxy closed the connection ... PANIC ... stage 7
by William Oquendo 25 Nov '24

25 Nov '24

Hi. I need help with the error: Loop: PANIC! The remote NX proxy closed the connection. Error: The remote NX proxy closed the connection. Loop: PANIC! Failure negotiating the session in stage '7'. Error: Failure negotiating the session in stage '7'. Loop: PANIC! Wrong version or invalid session authentication cookie. Error: Wrong version or invalid session authentication cookie. Session: Terminating session at 'Fri Nov 22 21:49:10 2024'. This started after an update in my base os (slackware current). I just recompiled x2go, nx-libs and the perl deps. And now I cannot connect, getting always this error message. I have read too many block post, mailing list messages (from this list, with similar title), and so on, with the same keywords, and nothing works. Some post are very old, like from 10 years ago, and yet I tried what was suggested. Looking for info in the web is now almost hopeless, all the links that appear are marked as already visited by me. Some LLM suggest basically the same thing (plus deleting ~/.x2go and things like that, and gues, do not work). I have tried changing nx-libs versions, x2goserver versions, deleting and recreating the data base, etc. Both ssh and ssh -X work. I really don't have a clue. Normally when x2go failed I just had to recompile perl-DBD... but this is a very different problem. I suspect is something related with permission with some magic cookie, but nothing appears in the logs that give some clue. I have played also with x2gstartagent and it fails with errors showing that /usr/lib64/x2go/libx2go-server-db-sqlite3-wrapper insertsession 50 sala29.salafis.net myuser-50-1732504908 failed, but I was not able to make it run or understand the problem, and sometimes it seems that this happens because I ran it remotely, using ssh, so no DISPLAY var was set. I really need some tip, gidance, help. Thanks in advance This is important because is the tool we use to access remotely a coputer room, so right now students cannnot use it and are relying on workarounds like accessing file using vscode remote-desktop extension, or a complicated reverse tunnel with turbovnc, and so on. INSTALLED VERSIONS /var/log/packages/nx-libs-3.5.99.27-x86_64-1_SBo (tested also older versions) /var/log/packages/perl-5.40.0-x86_64-2 /var/log/packages/perl-Capture-Tiny-0.48-x86_64-1_SBo /var/log/packages/perl-Config-Simple-4.58-x86_64-1_SBo /var/log/packages/perl-DBD-SQLite-1.76-x86_64-1_SBo /var/log/packages/perl-File-ReadBackwards-1.05-x86_64-1_SBo /var/log/packages/perl-File-Which-1.27-x86_64-1_SBo /var/log/packages/perl-IPC-System-Simple-1.30-noarch-1_SBo /var/log/packages/perl-Module-Build-0.4234-noarch-1_SBo /var/log/packages/perl-Switch-2.17-x86_64-1_SBo /var/log/packages/perl-Switch-2.17-x86_64-1_SBo-upgraded-2024-11-24,18:03:28 /var/log/packages/perl-Try-Tiny-0.28-x86_64-1_SBo /var/log/packages/perl-Unix-Syslog-1.1-x86_64-1_SBo /var/log/packages/perl-file-basedir-0.09-x86_64-1_SBo /var/log/packages/x2goserver-4.1.0.4-x86_64-1_SBo (I tested even with te latest 4.1.0.6) -- Best regards / Cordialmente, William-Fernando Oquendo -------------------------- Este correo puede carecer de tildes o eñes debido al teclado.

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Trouble with cut/paste
by Neal Becker 20 Nov '24

20 Nov '24

I've been having trouble with cut/paste. My local is Fedora41 running wayland/kde. Remote is Fedora40 running xfce. At random, but many times per day lately, I try to cut from the remote and paste on the local. If I paste into google chrome, chrome becomes hung and must be killed. If I paste into emacs I see "waiting for reply from selection owner". The problem isn't new, but recently has become much more frequent to the point of being not enjoyable. Any ideas?

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Unable to create SSH tunnel for X2Go session (NX) startup, error binding localhost
by Kalle Tuulos 18 Nov '24

18 Nov '24

Hello We are using X2Go client (4.1.2.2) in Windows 10 and 11 computers to contact Ubuntu 20.04 server (4.1.0.6-0~2023081). Some users get sometimes following error when launching session: Unable to create SSH tunnel for X2Go session (NX) startup: Error binding localhost:<port> I can't find any place where I could change the port number. Restarting client Windows computer does not help, restarting x2goserver.service in Ubuntu server does not help either. I have noticed that this error does not appear if x2goclient (4.1.2.4) installed on Windows computer's WSL (Ubuntu 20.04) is started. However, using X2go client through WSL is not good solution here as one can't share Windows directory through that. How should I proceed? Would it be possible to get 4.1.2.4 version to MS Windows also? BR, Kalle

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Laggy screen refresh in xfce, ok in Win10
by E. N. 13 Nov '24

13 Nov '24

Hi all, I got a debian machine with XFCE (window compositor disabled) I access from both a Ubuntu 22.04 machine (XFCE, here, too, tried disabling the compositor) and Windows 10. From Windows 10 it's reasonably ok, but from the Ubuntu/XFCE screen refresh lags like Wing Commander II on a 286. How come?

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X2Go breaks clipbord
by Jérôme Redouté 13 Nov '24

13 Nov '24

Hello, I’m using X2Go 4.1.2.2 to access a Linux server from a Windows 11 client. When I open an X2Go session, the Windows clipboard behaves erratically. It works a few times, but then copy and paste becomes impossible. This issue occurs with Windows to X2Go, X2Go to Windows, and even Windows to Windows. The normal clipboard functions return as soon as I close the X2Go window. Any ideas on how to fix this? Thank you.

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