x2go-user September 2018

x2go-user@lists.x2go.org

17 participants
14 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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Local Desktop access crashes client almost immediately
by James M. Pulver 06 Oct '18

06 Oct '18

I'm running Scientific Linux 7.4 on the server, and Windows 7 on the client. I want to access my accounts (non-privileged) local desktop remotely. I log in and select the local desktop option in the client. I get a flash of the desktop (with the wrong screen size remotely anyway - I see a small part of the desktop) and then the Windows X server crashes. x2goserver-4.0.1.20-1.el7.x86_64 X2Go Client v. 4.1.0.0 Any ideas? -- James Pulver CLASSE Computer Group Cornell University

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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 server and pgpool
by David Barron 28 Sep '18

28 Sep '18

I'm trying to get x2go server running in a high availability environment, which includes using pgpool for replication etc. I've got my /etc/x2go/x2gosql/sql file setup this way: backend=postgres host=<hostname> port=9999 When I try x2godbadmin -createdb I get a pgpool error I don't understand: DBI connect('dbname=x2go_sessions;host=<hostname>;port=9999;sslmode=disable','postgres',...) failed :ERROR: unable to read message kind DETAIL: kind does not match between master(53) slot[1] (45) at /sbin/x2godbadmin line 530. Backend=postgres at /sbin/x2godbadmin line 530. When I connect with pgAdmin I can see that the x2godbuser has been created and the x2go_sessions database has been created. If I try to connect to the database I get this error [cid:image002.png@01D44F61.9E2EB470] If I change the port= to 5432 (the default postgresql port) the command works fine. So, I guess my first question is, is this sort of setup supported? If so, is there any documentation or suggestions? Thanks in advance. architects of vision and strategy for business intelligence David Barron Senior Consultant Zencos Consulting: david.barron(a)zencos.com [www.zencos.com]<http://www.zencos.com/> work: 919-480-2761 mobile: 919-995-2356 fax: 919-287-2335 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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x2go error: Failed to start Agent (terminated unexpectedly)
by Johnston, Tim 19 Sep '18

19 Sep '18

Hi all, I am in the process of evaluating x2go as an alternative to VNC. It looks very promising, but we are running into an odd issue. I am running a basic setup: x2goserver-xsession is installed on a CentOS 7 machine, users connect to it using the x2go client (either from Linux or Windows) and receive a KDE desktop. When connecting, I get this error (from /var/log/messages): <HOSTNAME> /usr/sbin/x2gocleansessions[124414]: <USERNAME>-50-1537370420_stDKDE_dp24: state file for this session does not exist: /tmp/.x2go-<USERNAME>/C-<USERNAME>-50-1537370420_stDKDE_dp24/state│ <HOSTNAME> /usr/bin/x2gostartagent: Failed to start X2Go Agent session with ID <USERNAME>-50-1537370420_stDKDE_dp24. X2Go Agent terminated unexpectedly. Aborting session startup. │ The same error "Failed to start agent..." is shown in the x2goclient. I have narrowed this down to one line in my bashrc: export LD_LIBRARY_PATH=/usr/lib64:$LD_LIBRARY_PATH If I comment this line, I can start sessions without any issue. As part of my debugging, I have set the x2go server log level in /etc/x2go/x2goserver.conf: [log] loglevel=debug Any suggestions for next steps? Is my logging level really set correctly, or should I be seeing more? Thanks, Tim

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Mandriva
by Robert Dinse 18 Sep '18

18 Sep '18

Has anyone installed x2goserver on mandriva 3.x? If so can you tell me how or point me to a document? -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- 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.

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Where is the openSUSE Tumbleweed repository?
by Tristan Miller 18 Sep '18

18 Sep '18

Greetings. I want to use the X2Go Repository (not the official openSUSE one) to install X2Go on openSUSE Tumbleweed. According to <https://wiki.x2go.org/doku.php/wiki:repositories:suse#adding_the_x2go_repos…> the main and extras repositories should be located at <http://packages.x2go.org/opensuse/tumbleweed/main> and <http://packages.x2go.org/opensuse/tumbleweed/extras>, respectively. The extras repository is there but the main repository is not. Has something happened to it? Regards, Tristan -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Tristan Miller Free Software developer, ferret herder, logologist https://logological.org/ =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

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Problem restoring connection on Ubuntu 18.04
by EI 13 Sep '18

13 Sep '18

I have a very strange problem with x2goserver running on Ubuntu 18.04. I get an error message on the client side when I try to suspend the connection. I also, can't reconnect to existing connections. I haven't had this problem with 16.04. I tried debugging the problem and I discovered that /var/lib/x2go/x2go_sessions database is not getting updated when connection is created. I tried erasing and re-creating the database, same problem. Even running perl script manually: /usr/lib/x2go/libx2go-server-db-sqlite3-wrapper.pl insertsession,50,blah,blah-50-1536602027_stRkonsole_dp doesn't change the database. I installed x2goserver from ppa:x2go/stable following instructions on x2go page. What could be the reason for this? How do I debug it further? Thank you. Here's version info: ~$ x2goversion x2goserver: 4.1.0.2 x2goserver-common: 4.1.0.2 x2goserver-extensions: 4.1.0.2 x2goserver-fmbindings: 4.1.0.2 x2goserver-printing: 4.1.0.2 x2goserver-x2goagent: 3.5.99.16 x2goserver-xsession: 4.1.0.2

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x2go-user September 2018