[X2Go-User] Turn off ALL clipborad interaction -- even PRIMARY (middle mouse clicking activities)?

[Erik Starbäck]

Hurray!

Thank you it worked!

But it did MORE than just override the client option, becuse without
this setting the client setting "disable clipboard completely" does
still share the "PRIMARY X clipboard stuff (middle click and
stuff...)"

What I try to achieve is a graphical login for handling sensitive
data. All import and export to the system need to be logged. (we use
sftp)

Of course the users can screenshot the display, but at least it should
be a bit unpractical to get a lot of stuff out from the system.

So generic ssh is not allowed
The folder sharing stuff is turned off (I hope :-)  (Just changes a
couple of x2g-programs to "exit 0" :-)
And now no simple cut and paste

Thanks again!

/Erik Starbäck








On Fri, Feb 3, 2017 at 10:23 AM, Stefan Baur <X2Go-ML-1 at baur-itcs.de> wrote:
> Am 03.02.2017 um 08:12 schrieb Erik Starbäck:
>> Hi!
>>
>> I really need to "sandbox" the user as much as possible.
>>
>> I managed to rewrite the x2go client so the clipboard sharing is
>> "none" whatever they select.
>
> Why would you need to rewrite the client for that?
>
> /etc/x2go/x2goagent.options *on the server* has:
>
> # Enforce clipboard behaviour in X2Go sessions globally (for all
> connecting clients)
> # Possible values for the -clipboard option: both, server, client, none
> # If this option stays commented out, clients can choose the sessions'
> clipboard behaviour...
> #X2GO_NXAGENT_DEFAULT_OPTIONS+=" -clipboard both"
>
> so setting
>
> X2GO_NXAGENT_DEFAULT_OPTIONS+=" -clipboard none"
>
> should do what you want.
>
>
>> But is it also possible to turn off the classic X (PRIMARY) cut and paste-model?
>>
>> Ideally I want to keep it working "inside" the g2go-login, but I can
>> live with a way to completely turn it off.
>>
>> So what I whant to achive is this:
>>
>> 1) No selection with mouse INSIDE the x2go-session should be
>> middle-button-pasted outside the x2go-session
>> 2) No middle middle-button-paste inside the x2go-session should "grab"
>> information from the outside system.
>> 3) All this must be activated on the server side -- but there it can
>> be rather hard core fiddling...
>
> If setting the above parameter doesn't help keeping copy/paste limited
> to the X2Go session, then it's not working correctly and you should file
> a bug.
>
> May I ask what you are trying to achieve? Something like this, maybe?
> <http://wiki.x2go.org/doku.php/doc:success-stories:electronic-glovebox>
>
> -Stefan
>
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