Roderick Johnstone | 23 Oct 19:21 2014
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Help requested to debug kde session failure

Hi

I need some help debugging my failing x2go sessions please.

Client is v4.0.2.1 on OSX Mavericks.
Server is 4.0.1.18 on Fedora 20. This is one of Orion's builds for Fedora.

I've been using server version 4.0.1.15 for some time, but its a bit 
flakey in the sense that often it is not easy to reconnect to a session, 
ie it takes several attempts or the session must be killed and started a 
fresh.

I was trying to see whether the 4.0.1.18 server would fix this issue but 
it seems to have bigger problems for me.

What works is:
1) Connecting to another Fedora 20 system running v4.0.1.15 server on 
with a KDE session but with the problem of not being able to resume 
sessions reliably.

2) Connecting to the 4.0.1.18 x2goserver with a single terminal session.

What fails is:
Connecting to the 4.0.1.18 x2goserver with a KDE session.

I get no session at all, and in the client window I get a message 
simliar to "your connection was closed before it got into a usable 
state". The connection dialogue disappears before I can read it all, and 
I can't see where it is saved.

(Continue reading)

Bernhard J. Mayr | 22 Oct 17:05 2014
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client side printing

I am having big trouble administering client side print functionality.

I have installed the x2go print package on the server. The user is in
the fuse group and there is a spool-dir mounted. In the X2Go Client I
configured client side
printing.

bmayr@...:/home/bmayr/.x2go/S-root-50-1413989095_stDLXDE_dp24/spool on
/tmp/.x2go-root/spool/C-root-50-1413989095_stDLXDE_dp24 type fuse.sshfs
(rw,nosuid,nodev,default_permissions)

When I start a print job, nothing happens.

The cups-access log says:
localhost - - [22/Oct/2014:17:03:01 +0200] "POST
/printers/Virtual_X2Go_Printer HTTP/1.1" 200 21992 Print-Job successful-ok

Any ideas what I can do to enable client side printing?

Thankfully Yours,

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(Continue reading)

Roderick Johnstone | 22 Oct 14:48 2014
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x2go 4.0.3.0.client for OSX

Hi

I was looking for the recently announced x2go v4.0.3.0 client for OSX at 
http://code.x2go.org/releases/binary-macosx/x2goclient/releases/ but the 
latest there is 4.0.2.1 dated 21 Oct 09:29.

Does this directory take a while to sync up with releases or am I 
looking in the wrong place? I notice that the heuler directory has 
4.0.3.0 subdirectory with a 4.0.3.0 x2goclient dmg.

Thanks

Roderick
Bernhard J. Mayr | 22 Oct 12:46 2014
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restricting access to published applications

Hi!

Is there a chance to restrict access to x2go server to only published
applications sessions in the way that a user can only establish x2go
"published applications" sessions but no desktop session?

Thankfully Yours! Bernhard

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(Continue reading)

Hanák | 22 Oct 12:37 2014
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Security setup on server with x2go

Hello,

I would like to ask experienced users, how they solve security topics on
their x2go servers.

I have the server where users are allowed to start only very a limited set
of commands through ssh. I am using sshd_config option ForceCommand
which allows to start only /usr/local/bin/check_ssh_cmd where
I test SSH_ORIGINAL_COMMAND. Everything works fine so far.

Now I need to allow users to start also some commands through
x2goclient. The problem is that in order x2go to work I need to
allow also every single command which is sent by x2goclient.
I tried to track what is being sent and there are a lot of
commands like 'sh -c "echo X2GODATABEGIN: ... echo X2GODATAEND"'.
So the question is, how to write the rules in check_ssh_cmd wrapper script.

If I would allow any command containing X2GODATABEGIN and X2GODATAEND,
it would probably work, but my security setup of ssh would be broken,
because somebody who knows, how x2go internally works, could sent
his own commands wrapped in X2GODATABEGIN and X2GODATAEND.

What would you recommend? Any sugestions are appreciated.

Pavel

Magnus Hagdorn | 22 Oct 12:09 2014
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x2go sessions

Hi there,
is there a way I can limit the session types I offer to x2go clients? I
would like to stop users from using gnome/kde sessions and get them to
use icewm instead. I do realise that if they know how to they could
simply execute the relevant session program directly. I'd just like to
make the default session sane.
Cheers
magnus

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Tom McManus | 21 Oct 15:23 2014
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Re: x2go-user Digest, Vol 6, Issue 19

Where do I download x2goclient-4.0.1.6-20141019.dmg?

-- Tom McManus (http://help.nmr.mgh.harvard.edu)

On Tue, 21 Oct 2014 12:00pm, x2go-user-request@... wrote:

> Send x2go-user mailing list submissions to
> 	x2go-user@...
>
> To subscribe or unsubscribe via the World Wide Web, visit
> 	http://lists.x2go.org/listinfo/x2go-user
> or, via email, send a message with subject or body 'help' to
> 	x2go-user-request@...
>
> You can reach the person managing the list at
> 	x2go-user-owner@...
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of x2go-user digest..."
>
>
> Today's Topics:
>
>   1. Changing the X2Go Client for Windows version numbering
>      (Michael DePaulo)
>   2. Re: Changing the X2Go Client for Windows version numbering
>      (James M. Pulver)
>   3. Re: Mac OS X 10.10 (Yosemite) X2Go client (Mike Gabriel)
>   4. Re: Mac OS X 10.10 (Yosemite) X2Go client (Ricardo D?az Mart?n)
>
(Continue reading)

Mike Gabriel | 21 Oct 09:29 2014
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Re: Mac OS X 10.10 (Yosemite) X2Go client

Hi Ricardo,

On  Di 21 Okt 2014 07:54:51 CEST, Ricardo Díaz Martín wrote:

> Hi Mike,
>
> I got some users updated to Yosemite. Could you send to me or upload to the
> releases the .dmg Yosemite compatible.
>
> Regards,
>
> --
> <ricardo.diaz@...>

The Yosemite fix is now available in x2goclient-4.0.1.6-20141019.dmg [1].

Sorry for the delay!
Mike

[1]  
http://code.x2go.org/releases/binary-macosx/x2goclient/releases/4.0.2.1/x2goclient-4.0.2.1-20141019.dmg

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(Continue reading)

Michael DePaulo | 20 Oct 14:16 2014
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Changing the X2Go Client for Windows version numbering

X2Go Users,

I'd like feedback on this topic.

I am thinking of switching the X2Go Client for Windows version
numbering over to the version numbering that X2Go Client for Mac OS X
uses such as:
If X2Go Client for Windows 4.0.3.0 were released today:
4.0.3.0-20141020
If I had to make any sort of change, either in the build process or in
the source code, on 2014-11-21:
4.0.3.0-20141121

The reason for this change is that I believe these version numbers
will be simpler and less confusing. This would be especially true for
Windows users who are not used to the version numbering used by Linux
distros.

Under the current version numbering , if I were to build X2Go Client
for Windows 4.0.3.0 when it is released the version number would
simply be:
4.0.3.0
Then say I had to make 2 changes to the build process, such as calling
different commands during the build process or bundling different 3rd
party binaries/libraries (e.g., VcXsrv, OpenSSL). The 2 new version
numbers would be:
4.0.3.0+build1
4.0.3.0+build2
If I had to then make a change to the source code, it would be:
4.0.3.0+hotfix1
(Continue reading)

Robson Francisco de Souza | 19 Oct 23:27 2014
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Re: X2Go client won't open desktop window on Mac OS X 10.10 Yosemite

Hi Ricardo,

I'm sorry: I did read the posts but I wasn't  sure Mike's comment actually applied to my case.
Do you or anybody else have any idea of when 4.0.3.0 is coming out?
Until it comes out, x2go is simply out of reach... :(
Robson


On Sun, Oct 19, 2014 at 10:20 AM, Ricardo Díaz Martín <oceanosoftlapalma-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
Hi,

I would be great read the mailing list before posting... 

Mike Gabriel confirms: The issue will be solved with upcoming X2Go Client 4.0.3.0.

Cheers,
Ricardo

2014-10-19 2:22 GMT+02:00 Robson Francisco de Souza <robfsouza-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>:
I've just upgrade my version of Mac OS X to 10.10 (Yosemite) and x2goclient (verion 4.0.2.1) started failing and printing the following message to  .x2go/S-<my user>-50-1413676018_stDKDE_dp32/sessions:

Socket: PANIC! Failed to resolve address of '/private/tmp/com.apple.launchd.iLnJoOXr4Z/org.macosforge.xquartz'.
Loop: PANIC! Unknown display host '/private/tmp/com.apple.launchd.iLnJoOXr4Z/org.macosforge.xquartz'.

As I try to open the connection a second time, a running section is detected, meaning the session was actually initiated but the client failed to open a local X11 window.

The socket is present in the /private/tmp directory referred by the error message above, although its name ends with 'xquartz:0' instead of just 'xquartz'. Creating a symlink with the expected socket name does not solve the issue.

It would seem like the client is trying to use the socket name as a host name? Perhaps misinformed by XQuartz?

Any help will be greatly appreciated.
Thanks,
Robson

--
Robson Francisco de Souza, PhD
Laboratório de Estrutura e Evolução de Proteínas (LEEP/PSEL)
Departamento de Microbiologia
Instituto de Ciências Biomédicas
Universidade de São Paulo
Av. Prof. Lineu Prestes, 1374 - Ed. Biomédicas II - Sala 250 - 2o. andar
Tel: 3091-0891
Cidade Universitária - CEP 05508-900 - São Paulo - SP - Brasil

----
Robson Francisco de Souza, PhD
Protein Structure and Evolution Laboratory (LEEP/PSEL)
Microbiology Departament
Biomedical Sciences Institute
University of Sao Paulo
Av. Prof. Lineu Prestes, 1374 - Biomédicas II - Sala 250
Phone: 55-11-3091-0891
Cidade Universitária - ZIP 05508-900 - São Paulo - SP - Brazil

_______________________________________________
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x2go-user <at> lists.x2go.org
http://lists.x2go.org/listinfo/x2go-user




--
Robson Francisco de Souza, PhD
Laboratório de Estrutura e Evolução de Proteínas (LEEP/PSEL)
Departamento de Microbiologia
Instituto de Ciências Biomédicas
Universidade de São Paulo
Av. Prof. Lineu Prestes, 1374 - Ed. Biomédicas II - Sala 250 - 2o. andar
Tel: 3091-0891
Cidade Universitária - CEP 05508-900 - São Paulo - SP - Brasil

----
Robson Francisco de Souza, PhD
Protein Structure and Evolution Laboratory (LEEP/PSEL)
Microbiology Departament
Biomedical Sciences Institute
University of Sao Paulo
Av. Prof. Lineu Prestes, 1374 - Biomédicas II - Sala 250
Phone: 55-11-3091-0891
Cidade Universitária - ZIP 05508-900 - São Paulo - SP - Brazil
<div>
<div dir="ltr">Hi Ricardo,<div><br></div>
<div>I'm sorry: I did read the posts but I wasn't &nbsp;sure Mike's comment actually applied to my case.</div>
<div>Do you or anybody else have any idea of when 4.0.3.0 is coming out?</div>
<div>Until it comes out, x2go is simply out of reach... :(</div>
<div>Robson</div>
<div><br></div>
</div>
<div class="gmail_extra">
<br><div class="gmail_quote">On Sun, Oct 19, 2014 at 10:20 AM, Ricardo D&iacute;az Mart&iacute;n <span dir="ltr">&lt;<a href="mailto:oceanosoftlapalma <at> gmail.com" target="_blank">oceanosoftlapalma@...</a>&gt;</span> wrote:<br><blockquote class="gmail_quote">
<div dir="ltr">Hi,<div><br></div>
<div>I would be great read the mailing list before posting...&nbsp;</div>
<div><br></div>
<div>Mike Gabriel confirms:&nbsp;<span>The issue will be solved with upcoming X2Go Client 4.0.3.0.</span>
</div>
<div><span><br></span></div>
<div><span>Cheers,</span></div>
<div><span>Ricardo</span></div>
</div>
<div class="gmail_extra">
<br><div class="gmail_quote">
<div><div class="h5">2014-10-19 2:22 GMT+02:00 Robson Francisco de Souza <span dir="ltr">&lt;<a href="mailto:robfsouza@..." target="_blank">robfsouza@...</a>&gt;</span>:<br>
</div></div>
<blockquote class="gmail_quote">
<div><div class="h5">
<div dir="ltr">I've just upgrade my version of Mac OS X to 10.10 (Yosemite) and x2goclient (verion 4.0.2.1) started failing and printing the following message to &nbsp;.x2go/S-&lt;my user&gt;-50-1413676018_stDKDE_dp32/sessions:<div><br></div>
<div>
<div>Socket: PANIC! Failed to resolve address of '/private/tmp/com.apple.launchd.iLnJoOXr4Z/org.macosforge.xquartz'.</div>
<div>Loop: PANIC! Unknown display host '/private/tmp/com.apple.launchd.iLnJoOXr4Z/org.macosforge.xquartz'.</div>
<div><br></div>
<div>As I try to open the connection a second time, a running section is detected, meaning the session was actually initiated but the client failed to open a local X11 window.</div>
<div><br></div>
<div>The socket is present in the /private/tmp directory referred by the error message above, although its name ends with 'xquartz:0' instead of just 'xquartz'. Creating a symlink with the expected socket name does not solve the issue.</div>
<div><br></div>
<div>It would seem like the client is trying to use the socket name as a host name? Perhaps misinformed by XQuartz?</div>
<div>
<div><br></div>
<div>Any help will be greatly appreciated.</div>
<div>Thanks,</div>
<div>Robson</div>
<div><br></div>-- <br>Robson Francisco de Souza, PhD<br>Laborat&oacute;rio de Estrutura e Evolu&ccedil;&atilde;o de Prote&iacute;nas (LEEP/PSEL)<br>Departamento de Microbiologia<br>Instituto de Ci&ecirc;ncias Biom&eacute;dicas<br>Universidade de S&atilde;o Paulo<br>Av. Prof. Lineu Prestes, 1374 - Ed. Biom&eacute;dicas II - Sala 250 - 2o. andar<br>Tel: 3091-0891<br>Cidade Universit&aacute;ria - CEP 05508-900 - S&atilde;o Paulo - SP - Brasil<br><br>----<br>Robson Francisco de Souza, PhD<br>Protein Structure and Evolution Laboratory (LEEP/PSEL)<br>Microbiology Departament<br>Biomedical Sciences Institute<br>University of Sao Paulo<br>Av. Prof. Lineu Prestes, 1374 - Biom&eacute;dicas II - Sala 250<br>Phone: 55-11-3091-0891<br>Cidade Universit&aacute;ria - ZIP 05508-900 - S&atilde;o Paulo - SP - Brazil
</div>
</div>
</div>
<br>
</div></div>_______________________________________________<br>
x2go-user mailing list<br><a href="mailto:x2go-user@..." target="_blank">x2go-user <at> lists.x2go.org</a><br><a href="http://lists.x2go.org/listinfo/x2go-user" target="_blank">http://lists.x2go.org/listinfo/x2go-user</a><br>
</blockquote>
</div>
<br>
</div>
</blockquote>
</div>
<br><br clear="all"><div><br></div>-- <br>Robson Francisco de Souza, PhD<br>Laborat&oacute;rio de Estrutura e Evolu&ccedil;&atilde;o de Prote&iacute;nas (LEEP/PSEL)<br>Departamento de Microbiologia<br>Instituto de Ci&ecirc;ncias Biom&eacute;dicas<br>Universidade de S&atilde;o Paulo<br>Av. Prof. Lineu Prestes, 1374 - Ed. Biom&eacute;dicas II - Sala 250 - 2o. andar<br>Tel: 3091-0891<br>Cidade Universit&aacute;ria - CEP 05508-900 - S&atilde;o Paulo - SP - Brasil<br><br>----<br>Robson Francisco de Souza, PhD<br>Protein Structure and Evolution Laboratory (LEEP/PSEL)<br>Microbiology Departament<br>Biomedical Sciences Institute<br>University of Sao Paulo<br>Av. Prof. Lineu Prestes, 1374 - Biom&eacute;dicas II - Sala 250<br>Phone: 55-11-3091-0891<br>Cidade Universit&aacute;ria - ZIP 05508-900 - S&atilde;o Paulo - SP - Brazil
</div>
</div>
Robson Francisco de Souza | 19 Oct 02:22 2014
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X2Go client won't open desktop window on Mac OS X 10.10 Yosemite

I've just upgrade my version of Mac OS X to 10.10 (Yosemite) and x2goclient (verion 4.0.2.1) started failing and printing the following message to  .x2go/S-<my user>-50-1413676018_stDKDE_dp32/sessions:

Socket: PANIC! Failed to resolve address of '/private/tmp/com.apple.launchd.iLnJoOXr4Z/org.macosforge.xquartz'.
Loop: PANIC! Unknown display host '/private/tmp/com.apple.launchd.iLnJoOXr4Z/org.macosforge.xquartz'.

As I try to open the connection a second time, a running section is detected, meaning the session was actually initiated but the client failed to open a local X11 window.

The socket is present in the /private/tmp directory referred by the error message above, although its name ends with 'xquartz:0' instead of just 'xquartz'. Creating a symlink with the expected socket name does not solve the issue.

It would seem like the client is trying to use the socket name as a host name? Perhaps misinformed by XQuartz?

Any help will be greatly appreciated.
Thanks,
Robson

--
Robson Francisco de Souza, PhD
Laboratório de Estrutura e Evolução de Proteínas (LEEP/PSEL)
Departamento de Microbiologia
Instituto de Ciências Biomédicas
Universidade de São Paulo
Av. Prof. Lineu Prestes, 1374 - Ed. Biomédicas II - Sala 250 - 2o. andar
Tel: 3091-0891
Cidade Universitária - CEP 05508-900 - São Paulo - SP - Brasil

----
Robson Francisco de Souza, PhD
Protein Structure and Evolution Laboratory (LEEP/PSEL)
Microbiology Departament
Biomedical Sciences Institute
University of Sao Paulo
Av. Prof. Lineu Prestes, 1374 - Biomédicas II - Sala 250
Phone: 55-11-3091-0891
Cidade Universitária - ZIP 05508-900 - São Paulo - SP - Brazil
<div><div dir="ltr">I've just upgrade my version of Mac OS X to 10.10 (Yosemite) and x2goclient (verion 4.0.2.1) started failing and printing the following message to &nbsp;.x2go/S-&lt;my user&gt;-50-1413676018_stDKDE_dp32/sessions:<div><br></div>
<div>
<div>Socket: PANIC! Failed to resolve address of '/private/tmp/com.apple.launchd.iLnJoOXr4Z/org.macosforge.xquartz'.</div>
<div>Loop: PANIC! Unknown display host '/private/tmp/com.apple.launchd.iLnJoOXr4Z/org.macosforge.xquartz'.</div>
<div><br></div>
<div>As I try to open the connection a second time, a running section is detected, meaning the session was actually initiated but the client failed to open a local X11 window.</div>
<div><br></div>
<div>The socket is present in the /private/tmp directory referred by the error message above, although its name ends with 'xquartz:0' instead of just 'xquartz'. Creating a symlink with the expected socket name does not solve the issue.</div>
<div><br></div>
<div>It would seem like the client is trying to use the socket name as a host name? Perhaps misinformed by XQuartz?</div>
<div>
<div><br></div>
<div>Any help will be greatly appreciated.</div>
<div>Thanks,</div>
<div>Robson</div>
<div><br></div>-- <br>Robson Francisco de Souza, PhD<br>Laborat&oacute;rio de Estrutura e Evolu&ccedil;&atilde;o de Prote&iacute;nas (LEEP/PSEL)<br>Departamento de Microbiologia<br>Instituto de Ci&ecirc;ncias Biom&eacute;dicas<br>Universidade de S&atilde;o Paulo<br>Av. Prof. Lineu Prestes, 1374 - Ed. Biom&eacute;dicas II - Sala 250 - 2o. andar<br>Tel: 3091-0891<br>Cidade Universit&aacute;ria - CEP 05508-900 - S&atilde;o Paulo - SP - Brasil<br><br>----<br>Robson Francisco de Souza, PhD<br>Protein Structure and Evolution Laboratory (LEEP/PSEL)<br>Microbiology Departament<br>Biomedical Sciences Institute<br>University of Sao Paulo<br>Av. Prof. Lineu Prestes, 1374 - Biom&eacute;dicas II - Sala 250<br>Phone: 55-11-3091-0891<br>Cidade Universit&aacute;ria - ZIP 05508-900 - S&atilde;o Paulo - SP - Brazil
</div>
</div>
</div></div>

Gmane