x2go-user March 2018

x2go-user@lists.x2go.org

34 participants
46 discussions

Clipboard stops working
by Norm Green 11 Mar '19

11 Mar '19

Hello List, I find that the clipboard stops working after a period of time. Specifically, copying from the windows desktop to the x2go window doesn't work because x2go thinks the clipboard is empty. I am copying from emacs on Windows to emacs on Linux. It doesn't matter how many times I select and copy on windows, x2go does not pass the clipboard contents to emacs on Linux. But if I disconnect from the server and reconnect, it works, using the same emacs windows. This is with x2go client 4.1.1.1 running on Win7, but it also happened on previous x2go client versions (4.0.x) . x2go server 4.0.1.20 is running on Ubuntu 16.04 Is this a known bug? Any way to fix it? Norm Green

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Connection timeout over high latency network links
by Brent Roman 08 Mar '19

08 Mar '19

I'm trying to run a remote X-session on a satellite link. The ping latency is typically 800ms. I have no trouble ssh'ing to the remote machine, but, whenever I try to connect a remote session via the x2goclient, it ends within a couple seconds with a dialog box saying: Timeout connecting to raven raven is the remote hostname. Both machines are running Debian Jessie. The x2goclient is version 4.4.1.0 Is there some connection timeout parameter that I could increase to make it possible to use high latency links? Is this fixed in newer versions? Thanks! -- Brent Roman MBARI Software Engineer Tel: (831) 775-1808 7700 Sandholdt Road, Moss Landing, CA 95039 mailto:brent@mbari.org http://www.mbari.org/~brent

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Re: [X2Go-User] ssh kex error
by is＠k4ts.net 13 Nov '18

13 Nov '18

Am 19.10.2015 17:06, schrieb Robert Dinse: > the new version of openssh disabled certain insecure > ciphers... Version7 is what you mean. I use 6.9 on both client and server. > you can add > the following line to your /etc/ssh/sshd_config manually enable the > insecure old ciphers: > > KexAlgorithms > curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 Adding these ciphers doesn't help - same algo error, Thats wired coz I can ssh to the server without any issues. > -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- > 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. > > On Mon, 19 Oct 2015, is(a)k4ts.net wrote: > >> Date: Mon, 19 Oct 2015 15:12:43 +0200 >> From: is(a)k4ts.net >> To: x2go-user(a)lists.x2go.org >> Subject: [X2Go-User] ssh kex error >> >> hi, i'm not able to connect >> to my new hardened gentoo server using x2go. >> >> No matter which key type i select for the connection, >> the client (v. 4.0.5.0) terminates with the following: >> >> kex error : no match for method server host key algo: >> server [ssh-rsa,ssh-ed25519], client [ecdsa-sha2-nistp256] >> >> I have rsa and ed25519 keys on my client and server. >> >> sshing from the shell works like always. log is attached. >> >> do you have an idea, whats might wrong? >> >> thx, >> k4t >> >> k4tfish@e10 ~ $ ssh k4tfish@host >> OpenSSH_6.9p1-hpn14v5, OpenSSL 1.0.2d 9 Jul 2015 >> debug1: Reading configuration data /etc/ssh/ssh_config >> debug1: Connecting to host.net port 51822. >> debug1: Connection established. >> debug1: identity file /home/k4tfish/.ssh/id_rsa type 1 >> debug1: key_load_public: No such file or directory >> debug1: identity file /home/k4tfish/.ssh/id_rsa-cert type -1 >> debug1: key_load_public: No such file or directory >> debug1: identity file /home/k4tfish/.ssh/id_dsa type -1 >> debug1: key_load_public: No such file or directory >> debug1: identity file /home/k4tfish/.ssh/id_dsa-cert type -1 >> debug1: key_load_public: No such file or directory >> debug1: identity file /home/k4tfish/.ssh/id_ecdsa type -1 >> debug1: key_load_public: No such file or directory >> debug1: identity file /home/k4tfish/.ssh/id_ecdsa-cert type -1 >> debug1: key_load_public: No such file or directory >> debug1: identity file /home/k4tfish/.ssh/id_ed25519 type -1 >> debug1: key_load_public: No such file or directory >> debug1: identity file /home/k4tfish/.ssh/id_ed25519-cert type -1 >> debug1: Enabling compatibility mode for protocol 2.0 >> debug1: Local version string SSH-2.0-OpenSSH_6.9p1-hpn14v5 >> debug1: Remote protocol version 2.0, remote software version >> OpenSSH_6.9p1-hpn14v5 >> debug1: match: OpenSSH_6.9p1-hpn14v5 pat OpenSSH* compat 0x04000000 >> debug1: Authenticating to host...net:51822 as 'k4tfish' >> debug1: SSH2_MSG_KEXINIT sent >> debug1: SSH2_MSG_KEXINIT received >> debug1: AUTH STATE IS 0 >> debug1: REQUESTED ENC.NAME is 'chacha20-poly1305(a)openssh.com' >> debug1: kex: server->client chacha20-poly1305(a)openssh.com <implicit> >> none >> debug1: REQUESTED ENC.NAME is 'chacha20-poly1305(a)openssh.com' >> debug1: kex: client->server chacha20-poly1305(a)openssh.com <implicit> >> none >> debug1: expecting SSH2_MSG_KEX_ECDH_REPLY >> debug1: Server host key: ssh-ed25519 SHA256:xyz >> debug1: Host '[host.net]:51822' is known and matches the ED25519 host >> key. >> debug1: Found key in /home/k4tfish/.ssh/known_hosts:203 >> debug1: SSH2_MSG_NEWKEYS sent >> debug1: expecting SSH2_MSG_NEWKEYS >> debug1: SSH2_MSG_NEWKEYS received >> debug1: Roaming not allowed by server >> debug1: SSH2_MSG_SERVICE_REQUEST sent >> debug1: SSH2_MSG_SERVICE_ACCEPT received >> debug1: Authentications that can continue: >> publickey,password,keyboard-interactive >> debug1: Next authentication method: publickey >> debug1: Offering RSA public key: /home/k4tfish/.ssh/id_rsa >> debug1: Server accepts key: pkalg ssh-rsa blen 279 >> debug1: Authentication succeeded (publickey). >> Authenticated to host ([123.123.456.7]:51822). >> debug1: Final hpn_buffer_size = 2097152 >> debug1: HPN Disabled: 0, HPN Buffer Size: 2097152 >> debug1: channel 0: new [client-session] >> debug1: Enabled Dynamic Window Scaling >> debug1: Requesting no-more-sessions(a)openssh.com >> debug1: Entering interactive session. >> debug1: client_input_global_request: rtype hostkeys-00(a)openssh.com >> want_reply 0 >> debug1: Sending environment. >> debug1: Sending env LC_COLLATE = C >> debug1: Sending env LANG = en_US.utf8 >> >> _______________________________________________ >> x2go-user mailing list >> x2go-user(a)lists.x2go.org >> http://lists.x2go.org/listinfo/x2go-user >>

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It might be that we already have KDE5/Plasma support ...
by Stefan Baur 01 Oct '18

01 Oct '18

Hi $LIST, According to Mike#1, who currently attends DebConf in Montreal, Debian 9 + X2Go Stable + KDE5/Plasma have been shown to work together. This is a single report so far, though. If anyone is willing and able to test and confirm this, it would be highly appreciated. Another test result we'd be interested in would be what happens if you use Arctica NX-Libs and X2Go Heuler instead of X2Go Stable. Kind Regards, Stefan Baur -- BAUR-ITCS UG (haftungsbeschränkt) Geschäftsführer: Stefan Baur Eichenäckerweg 10, 89081 Ulm | Registergericht Ulm, HRB 724364 Fon/Fax 0731 40 34 66-36/-35 | USt-IdNr.: DE268653243

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X2Go crashes when I run Thunderbird
by Tristan Miller 05 Apr '18

05 Apr '18

Dear all, Lately whenever I try to run Thunderbird through X2Go, the session suddenly closes. The session doesn't get suspended, since when I reconnect I need to create a new session rather than resuming the old one. I assume that the server is crashing or otherwise failing, since the client remains open. Any idea what the problem is or how I can go about diagnosing this? I'm running x2goclient 4.1.0.0 on openSUSE Leap 42.3 and x2goserver 4.0.1.20 on openSUSE Tumbleweed. Regards, Tristan -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Tristan Miller Free Software developer, ferret herder, logologist https://logological.org/ =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

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Limit what users can start
by Михайло Падалка 01 Apr '18

01 Apr '18

Hello! Is there any possibility to limit what session users can start? Thanks! -- З повагою, Михайло

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X2Go Client suddenly failing to connect
by Ivan Gomez 29 Mar '18

29 Mar '18

Dear all, I have been using X2Go client in the current environment for quite a while now without issues. Seemingly all of sudden today an outage happened where X2Go will no longer launch any applications. The connection seems to succeed in the backend: [cid:image001.png@01D3C558.EB0F51C0] However, the client closes the connection before anything happens. Running the client with the debug terminal shows these messages: [cid:image002.png@01D3C559.58693F10] I've validated that I can SSH to the server using other tools and start the X11 applications from command line directly. Any guidance or pointers to figure out why X2Go stopped working would be greatly appreciated. Thank you, Ivan G. Ivan Gomez Consultant Zencos Consulting<http://www.zencos.com/> igomez(a)zencos.com<mailto:igomez@zencos.com> mobile: (919) 576-0614 ________________________________________________________________ The information in this e-mail and any attached files is confidential. It is intended solely for the use of the addressee. Any unauthorized disclosure or use is prohibited. If you are not the intended recipient of the message, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. The views of the author may not necessarily reflect those of the company.

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Re: [X2Go-User] integrated X-Server and AltGr/right Alt key
by Joachim Hartmann 28 Mar '18

28 Mar '18

Am 26.03.2018 um 22:40 schrieb Ulrich Sibiller: >>> setxkbmap -I. -print > > Sorry, my fault. I meant -query, not -print @09:10:43#/usr/share/X11/xkb# setxkbmap -I. -query rules: xfree86 model: null layout: null >> On the client system - windows 7 - I found no nx-libs. x2go-Client (V. >> 1.1.1) is installed (latest version) > > Hmm, current versiom is 4.1.1.1 > > Sorry, I have forgotten the leading Four, I was fixed to the count of ones! The correct answer is: x2go-Client (V. 4.1.1.1) is installed (latest version) >> >> >> @21:52:26#~# dpkg -l | grep libnx >> ii libnx-x11-6:amd64 2:3.5.99.16-1+git20180317.2985+8.main.1 amd64 >> nxagent's libNX_X11 client-part library > > These are all old, you should drop them. > I think they are up to date for jessie, have a look to http://packages.x2go.org/debian/dists/jessie/main/binary-amd64/Packages > > OK, I see you are trying to login using root. Does it work better if > you take normal user (root sessions can be special)? You should also > remove /etc/x2go/keystrokes.cfg; your version is outdated. Removing > does not hurt as x2go will then use the builtin defaults which are > largely the same you have - minus the previously broken ones ;-) I will test this later, I have to leave now. -- Gruß aus der Stadt der CeBIT Jochen

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line editing not enabled, Connection Failed (Xiki)
by Karl A. Woelfer 27 Mar '18

27 Mar '18

We have a user who is unable to launch X2go, receiving the following errors: Conection Failed ~/Xiki/bin/.xsh line (...) bind : warning : line editing not enabled Is this maybe a known conflict between key mappings ? I am not very familiar with the Xiki shell. Are there any workarounds people can offer? Thanks for your collective expertise, - Karl

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x2go stops working on some Ubuntu 14.04 boxes
by Qianqian Fang 26 Mar '18

26 Mar '18

Dear list, I run a small cluster for my lab, including about 12 Linux boxes running Ubuntu 14.04 (1x with 16.04). We have been using x2go and ssh as the primary tool to access these computing resources. Recently (started a month ago), I noticed there were package updates of x2go server (now 4.1.0.0-0-1517), client (now 4.1.1.1-0-1719) and the nx11 libraries, on the other hand, I started having difficulty log on to some of my servers, and this list starts to grow. I am not sure if this was the result of the recent package upgrade, or the reason motivated the package updates, but I started seeing the below two types of messages: For some of the machines, I saw the below message initially: *The remote proxy closed the connection while negotiating* ** *the session. This may be due to the wrong authentication* ** *credentials passed to the server.* for some other servers, I am getting the below message: *Connection failed.**Failed to start X2Go Agent session with ID account-xxxxxx_stDXFCE_dp24. X2Go Agent terminated unexpectedly. Aborting session startup. * The 1st message appeared first, after I tried to restart x2goserver or rebooting the machine, or apply the updates, deleting the ~/.x2go folder, or a reboot, those machines typically display the 2nd message; none of those were fixed using the above procedures. right now, I have about 2/3 of the my servers are not accessible via x2go. I would like to know if there is a workaround. thanks Qianqian

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x2go-user March 2018