x2go-dev March 2016

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18 participants
126 discussions

x2goclient 4.0.5.1 ETA?
by Orion Poplawski 14 Mar '16

14 Mar '16

Is there an ETA on x2goclient 4.0.5.1? Supposedly fixes bug 929 which crops up a fair amount in Fedora bug reports. -- Orion Poplawski Technical Manager 303-415-9701 x222 NWRA/CoRA Division FAX: 303-415-9702 3380 Mitchell Lane orion(a)cora.nwra.com Boulder, CO 80301 http://www.cora.nwra.com

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Bug#1009: x2gomountdirs fails to mount directories when connecting with mswin X2go client
by Залесский Егор 10 Mar '16

10 Mar '16

Package: x2goserver Version: 4.0.1.19-0~1064~ubuntu16.04.1 amd64 First of all, I would like to thank you for your marvelous x2go server. However, I have tried to install it on Ubuntu 14.04, 15.10 and 16.04 and every time I had the same error on mounting local shares from mswin official client: Mar 10 17:53:55 x2go-test /usr/bin/x2gomountdirs[1428]: executing: timeout 30 sshfs -o idmap=user,uid=`id -u`,gid=`id -g`,default_permissions,ServerAliveInterval=300,Cipher=blowfish,IdentityFile=/home/sysop/.x2go/ssh/key.gq4920,UserKnow nHostsFile=/home/sysop/.x2go/ssh/key.gq4920.ident "User"@192.168.0.128:"/cygdrive/D/QUAKE2" "/tmp/.x2go-sysop/media/disk/_cygdrive_D_QUAKE2" -p 7022 Mar 10 17:53:55 x2go-test /usr/bin/x2gomountdirs[1428]: WARNING: mounting of /cygdrive/D/QUAKE2 failed I have tested it on several Windows PC’s, still no luck. I have the remote access to linux desktop (ssh connection to Linux works fine), but backward ssh connection fails. I have found the following bugs and solutions: 1. sshd on cygwin offers ssh-dss keys, but modern ssh-client on Ubuntu fails to accept this (deprecated?) type of a key. The problem is worked-around by adding HostKeyAlgorithms=+ssh-dss to /etc/ssh/ssh_config OR The problem can be solved on the whole by generating a better type of a key on windows-side. C:\Program Files (x86)\x2goclient\ssh-keygen -b 2048 -t rsa And simply replacing c:\Users\User\.x2go\etc\ ssh_host_dsa_key and c:\Users\User\.x2go\etc\ ssh_host_dsa_key.pub with generated files. Ssh-keygen supports RSA keys or even ecdsa. Of course, It would be great to do it when installing mswin x2go client 2. /usr/bin/x2gomountdirs line 312 starts sshfs connection this way: if (system("timeout 30 sshfs $code_conv -o idmap=user,uid=`id -u`,gid=`id -g`,$umaskstr,ServerAliveInterval=300,Cipher=blowfish,IdentityFile=$key,UserKnownHostsFile=$key.ident \"$user\"\@$host:\"@dirs[$i]\" \"$mntpath\" -p $port 1>>$sessiondir/sshfs-mounts.log 2>&1")==0) BUT! ========================= Changes since OpenSSH 6.6 ========================= Potentially-incompatible changes * sshd(8): The default set of ciphers and MACs has been altered to remove unsafe algorithms. In particular, CBC ciphers and arcfour* are disabled by default. So to make it work you just delete Cipher=blowfish, out of the line like that: if (system("timeout 30 sshfs $code_conv -o idmap=user,uid=`id -u`,gid=`id -g`,$umaskstr,ServerAliveInterval=300,IdentityFile=$key,UserKnownHostsFile=$key.ident \"$user\"\@$host:\"@dirs[$i]\" \"$mntpath\" -p $port 1>>$sessiondir/sshfs-mounts.log 2>&1")==0) Actually this bug makes impossible shares mounting for all clients (not only windows) since November 2014. It means, since then folder mounting fails for anyone, who installs updates from time to time. o_O 3. Windows 8 clients have a cygwin bug that prevent them from starting sshd properly, thus preventing them from mounting local folders: Permissions 660 for '...' are too open. It is recommended that your private key files are NOT accessible by others. This private key will be ignored. As it is the only key, sshd fails to start at all. It is not a problem of x2go. But still, you can add to a wiki the following: To test for this kind of error, you need to install mswin client with Debug Build and run it with debug shortcut. If you see the error stated above, you simply set the following permissions to c:\Users\<Username>\.x2go\etc folder: 1. OWNER – GROUP(!!!) Users (in fact, any group your user is in – Everyone, Administrators) 2. Disable rights inheriting 3. Delete all user rights 4. Add only one rule to the rights – the group, that you have set the owner to – read and write. It should not throw this error anymore. Best regards, Yahor Zaleski Doctor Server, LLC, Minsk

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Bug#1008: printing MAC OS X El Capitan (2)
by Daniel Serrabou 08 Mar '16

08 Mar '16

Package: x2goclient Version: 4.0.5.0 When launch x2goclient "El Capitan" shows a message said: ssh error... no print no share folders I found that x2goclient look for /etc/ssh_host_rsa_key.pub, but in "El capitan" it is in /etc/ssh/ I create a link and it works! (in previous mail link are mistake) ln -s /etc/ssh/ssh_host_rsa_key.pub /etc/ssh_host_rsa_key.pub Dani

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Bug#1007: printing MAC OS X El Capitan
by Daniel Serrabou 08 Mar '16

08 Mar '16

Package: x2goclient Version: 4.0.5.0 When launch x2goclient "El Capitan" shows a message said: ssh error... no print no share folders I found that x2goclient look for /etc/ssh_host_rsa_key.pub, but in "El capitan" it is in /etc/ssh/ I create a link and it works! ln -s /etc/ssh_host_rsa_key.pub /etc/ssh/ssh_host_rsa_key.pub Dani

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Re: [X2Go-Dev] X2Go packages for SUSE-based systems
by Mike Gabriel 03 Mar '16

03 Mar '16

Hi Alex, SUSE packages on packages.x2go.org are built from the .spec files in the Git repos on git.x2go.org. Packages get built via jenkins.x2go.org. The .spec files are maintained by X2Go upsteam devs. The .spec files that build X2Go packages on OBS have been created by Jan Engelhardt and initially were of high quality and up-to-date. The OBS packaging had been sponsored financially by Michael Kromers company. However, the OBS packages had various issues, some of them you have already named. The RPM packages hosted on packages.x2go.org are IMHO more similar to our Debian packages and should be preferred. However, I haven't tried then for a while now and I neither know if the Jenkins build jobs are up-to-date and if recent SUSE versions are already supported. I guess this all needs some love... Mike On Wed Mar 2 17:28:17 2016 GMT+0100, Oleksandr Shneyder wrote: > Hello all, > > Can someone explain what is the difference between RPMs in the > > obs://X11:RemoteDesktop:x2go/<distr> > > and > > http://packages.x2go.org/opensuse/<distro-version>/main > > ? > > in different places on our wiki page you can found references to both of > them: > http://wiki.x2go.org/doku.php/doc:installation:x2goserver#adding_repositori… > http://wiki.x2go.org/doku.php/wiki:repositories:suse > http://wiki.x2go.org/doku.php/wiki:repositories:start#open-_suse > > > It could be very confusing for users. Some of my customers installed > packages from OBS and they didn't work as expected. I also tried this > packages and figured out, that they are not equivalent to the packages > from packages.x2go.org. For example, package x2goagent has no X2GO > branding. Agent displays "!m" splash screen and "!m" icon. Customizing > of keystrokes.cfg didn't work neither. I don't know if there are any > other differences, I didn't make further investigations. > I think, we should make it clear for the users on our wiki page, which > packages we suggesting to use. If we giving a reference to the external > resources, we should say what is difference between "our" packages and > packages built by other people. > > regards > Alex > -- > ----------------------------------------------------------- > Oleksandr Shneyder | Email: o.shneyder(a)phoca-gmbh.de > phoca GmbH | Tel. : 0911 - 14870374 0 > Ludwig-Feuerbach-str. 18 | Fax. : 0911 - 14870374 9 > D-90489 Nürnberg | Mobil: 0163 - 49 64 461 > > Geschäftsführung: > Dipl.-Inf. Oleksandr Shneyder > > Amtsgericht München | http://www.phoca-gmbh.de > HRB 196 658 | http://www.x2go.org > USt-IdNr.: DE281977973 > ----------------------------------------------------------- > > -- Sent from my Jolla

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X2Go packages for SUSE-based systems
by Oleksandr Shneyder 02 Mar '16

02 Mar '16

Hello all, Can someone explain what is the difference between RPMs in the obs://X11:RemoteDesktop:x2go/<distr> and http://packages.x2go.org/opensuse/<distro-version>/main ? in different places on our wiki page you can found references to both of them: http://wiki.x2go.org/doku.php/doc:installation:x2goserver#adding_repositori… http://wiki.x2go.org/doku.php/wiki:repositories:suse http://wiki.x2go.org/doku.php/wiki:repositories:start#open-_suse It could be very confusing for users. Some of my customers installed packages from OBS and they didn't work as expected. I also tried this packages and figured out, that they are not equivalent to the packages from packages.x2go.org. For example, package x2goagent has no X2GO branding. Agent displays "!m" splash screen and "!m" icon. Customizing of keystrokes.cfg didn't work neither. I don't know if there are any other differences, I didn't make further investigations. I think, we should make it clear for the users on our wiki page, which packages we suggesting to use. If we giving a reference to the external resources, we should say what is difference between "our" packages and packages built by other people. regards Alex -- ----------------------------------------------------------- Oleksandr Shneyder | Email: o.shneyder(a)phoca-gmbh.de phoca GmbH | Tel. : 0911 - 14870374 0 Ludwig-Feuerbach-str. 18 | Fax. : 0911 - 14870374 9 D-90489 Nürnberg | Mobil: 0163 - 49 64 461 Geschäftsführung: Dipl.-Inf. Oleksandr Shneyder Amtsgericht München | http://www.phoca-gmbh.de HRB 196 658 | http://www.x2go.org USt-IdNr.: DE281977973 -----------------------------------------------------------

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x2go-dev March 2016