x2go-user January 2019

x2go-user@lists.x2go.org

11 participants
31 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

4 19

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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black screen on resuming session
by Orion Poplawski 31 Jan '19

31 Jan '19

Anyone know what would cause a completely black screen on resuming a session? windows 10 client, EL7 server. Haven't heard reports of this for a while. -- Orion Poplawski Manager of NWRA Technical Systems 720-772-5637 NWRA, Boulder/CoRA Office FAX: 303-415-9702 3380 Mitchell Lane orion(a)nwra.com Boulder, CO 80301 https://www.nwra.com/

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Help need with Linux-Linux Kerberos Authentication
by rubens.zanatta＠grad.ufsc.br 25 Jan '19

25 Jan '19

Hello there. We're trying to use X2Go in our campus as a user friendly Linux-Linux remote desktop solution. We would also like a SingleSingOn approach, so we chose to use kerberos authentication between the Linux clients and the X2Go server. We already have a working KDC that authenticates a SSH server, as a test. On the client I have the Kerberos 5 Auth. option checked, but when I attempt the connection, the screen remains blank and never connects. The log shows this socket error but the authentication seems to be working. > x2go-INFO-8> "Starting connection to server: newhost.com:22" > x2go-DEBUG-../src/onmainwindow.cpp:3007> Starting new ssh connection to server:"newhost.com":"22" krbLogin: true > x2go-DEBUG-../src/sshmasterconnection.cpp:175> SshMasterConnection, host "newhost.com"; port 22; user "remoto"; useproxy false; proxyserver ""; proxyport 22 > x2go-DEBUG-../src/sshmasterconnection.cpp:244> Starting SSH connection with Kerberos authentication. > x2go-DEBUG-../src/sshmasterconnection.cpp:252> SshMasterConnection, instance SshMasterConnection(0x55e041b1c730) created. > x2go-DEBUG-../src/sshmasterconnection.cpp:520> SshMasterConnection, instance SshMasterConnection(0x55e041b1c730) entering thread. > x2go-DEBUG-../src/sshmasterconnection.cpp:834> Session port before config file parse: 22 > x2go-DEBUG-../src/sshmasterconnection.cpp:844> Session port after config file parse: 22 > x2go-DEBUG-../src/sshmasterconnection.cpp:909> Session port before config file parse (part 2): 22 > x2go-DEBUG-../src/sshmasterconnection.cpp:919> Session port after config file parse (part 2): 22 > x2go-DEBUG-../src/sshmasterconnection.cpp:944> cserverAuth > x2go-DEBUG-../src/sshmasterconnection.cpp:985> state: 1 > > x2go-DEBUG-../src/sshmasterconnection.cpp:1633> Starting ssh:"ssh" "-o GSSApiAuthentication=yes -o PasswordAuthentication=no -o PubkeyAuthentication=no -p 22 -l remoto newhost.com bash -l -c 'echo \"X2GODATABEGIN:eb840c04-8bb1-44b2-b29f-e29332c0354e\"; export TERM=\"dumb\"; whoami; echo \"X2GODATAEND:eb840c04-8bb1-44b2-b29f-e29332c0354e\";'" > > x2go-DEBUG-../src/sshmasterconnection.cpp:1661> SSH exited. > x2go-DEBUG-../src/sshmasterconnection.cpp:1662> stdout: "X2GODATABEGIN:eb840c04-8bb1-44b2-b29f-e29332c0354e\nremoto\nX2GODATAEND:eb840c04-8bb1-44b2-b29f-e29332c0354e\n" > > x2go-DEBUG-../src/sshmasterconnection.cpp:1663> stderr: "" > > x2go-DEBUG-../src/sshmasterconnection.cpp:1664> Exit code: 0; status: QProcess::ExitStatus(NormalExit) > > X2GO-DEBUG-../SRC/SSHMASTERCONNECTION.CPP:726> USER AUTHENTICATION OK. > X2GO-DEBUG-../SRC/SSHMASTERCONNECTION.CPP:1727> "SSH_CHANNEL_OPEN_SESSION FAILED": "SOCKET ERROR: DISCONNECTED" > > x2go-DEBUG-../src/sshmasterconnection.cpp:735> Login Check - Failed > x2go-DEBUG-../src/onmainwindow.cpp:3167> Closed SSH Session interaction The documentation on the wiki is blank when it comes to the advanced section and kerberos authentication methods, and I could not find past use cases regarding this approach on the mailing lists (I could've missed it though). Are there any additional configurations needed on the server side or any insights regarding this connection error? Any help towards this setup is appreciated. Regards, Rubens Zanatta

3 10

Install x2go TCE-live server
by Stroganov Roman 23 Jan '19

23 Jan '19

I checked at myself at the test stand as removal of usb drive works After disconnection of usb disk from the thin client Console of the thin client: ls /media/ Data_Treveler After remove usb drive the directory for mount automatically was not removed... We go on the server. We see the link "Data_Treveler" on a desktop and in / home/user/media/rm/Data_Treveler We return to the console of the thin client rm -rf /media/Data_Treveler Now on the thin client there is no Data_Treveler directory On the server in / home/user/media/rm/is empty as well as should be. But the link "Data_Treveler" on a desktop remained. Why I show consideration for it? If during one session the user used many different usb disks, then it will have many not working links on a desktop (garbage) and in / home/media/. It will mislead him... -- С Уважением Строганов Роман

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Install x2go TCE-live server
by Stroganov Roman 22 Jan '19

22 Jan '19

You are right. I use the translator. The description of a problem in my native language is lower При подключении usb диска к тонкому клиенту на нем создается каталог для ее монтирования (например /media/Kingston) Эта же директория пробрасывается на сервер x2go и там доступна. При отключении usb диска каталог монтирования /media/Kingston не удаляется автоматически на тонком клиенте и соответственно он виден на сервере, но пустой. Это вводит в заблуждение пользователей. Я думаю что при отключении usb диска на тонком клиенте должен удаляться каталог монтирования (в нашем случае /media/Kingston), а на сервере удаляться ссылки на флешку с рабочего стола и каталога пользователя -- С Уважением Строганов Роман

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Install x2go TCE-live server
by Stroganov Roman 22 Jan '19

22 Jan '19

Yes, that that went not so. Checksum of my patch was another. I applied yours. Checksum coincided. usb drive are mounted well. Russian is displayed correctly both on the thin client and on the server. To work with objects with the Russian names became possible. Thanks a lot for the help! But me the small mistake seems to eat in a script. After shutdown of usb drive of a directory of assembling are not removed automatically on the thin client and continue to be displayed on the server, but empty. If to insert, for example, 5 usb drive, and the spendthrift to disconnect them, then there will be 5 empty directories. -- С Уважением Строганов Роман

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Install x2go TCE-live server
by Stroganov Roman 22 Jan '19

22 Jan '19

If I carry out ./x2gousbpatch && ./x2gobuild2 2>&1 | tee logfile that the patch is downloaded with github. This is not what it is necessary for me. I change in ./patch/includes.chroot/usr/lib/x2go/tce/x2gousbmount a line elsif (system("mount -tvfat $dev /media/$name/$ldev -o uid=$user,sync,uni_xlate") == 0) on elsif (system("mount -tvfat $dev /media/$name/$ldev -o uid=$user,sync,utf8") == 0) also I carry out ./x2gobuild2 2>&1 | tee logfile create a new build It breaks autoconnection of any disks (ntfs, fat) Not forwarding to server. Does not mount on the thin client. In the console of the thin client I do mount/dev/far32_drive /mnt/fat32 without additional parameters and well I see directories and files with the Russian names. On regular Ubuntu checked connection of usb drive fat32. Everything is well read/written user@3S-13:~$ mount | grep fat /dev/sdb1 on /media/user/ROSTMA type vfat (rw,nosuid,nodev,relatime,uid=1000,gid=1000,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,showexec,utf8,flush,errors=remount-ro,uhelper=udisks2) -- С Уважением Строганов Роман

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X2go on Salix
by Robert Dinse 22 Jan '19

22 Jan '19

I installed x2goserver on salix. It complained about a couple of missing perl modules when I tried to login, I installed them, after that it just hangs when I try to login, never times out, never starts up. Any hints? -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- 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.

1 0

Install x2go TCE-live server
by Stroganov Roman 21 Jan '19

21 Jan '19

I will share the observations: I have 2 identical usb drive. One ntfs, other fat32. On both I create a directory "Новая папка" (new folder) and "новый файл.txt" (new file.txt) We connect both and we watch contents after mount in the console of the thin client: ls /media/ntfs_drive/ Новая Папка новый файл.txt System Volume Information ls /media/fat32_drive/ :041d:043e:0432:0430:044f :043f:0430:043f:043a:0430 :043d:043e:0432:044b:0439 :0444:0430:0439:043b.txt System Volume Information Later we go on the server. We open on the ntfs_drive server and we see normal Russian names of the file and a directory. It is possible to create new objects with the Russian names without problems. Checked even the Ukrainian alphabet. Everything is OK! We open on the fat32_drive server. There is a directory": 041d: 043e: 0432:0430:044f: 043f: 0430:043f: 043a: 0430" and file": 043d: 043e: 0432:044b: 0439: 0444:0430:0439:043b.txt". It is impossible to create directories/files in Russian sshfs transfers such names of files/directories with what them defined when mount... To exclude randomness checked several times -- С Уважением Строганов Роман

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x2go-user January 2019