[GRASS-user] GRASS7 - installation problem, MySQL support, X11 support

[Markus Neteler]

On Mon, Apr 27, 2015 at 2:44 AM, Vaclav Petras <wenzeslaus at gmail.com> wrote:
> On Sun, Apr 26, 2015 at 4:21 PM, Markus Neteler <neteler at osgeo.org> wrote:
>> Simply connect to your server with display forwarding:
>>
>> ssh -Y yourserver
>
> Isn't ssh -X more secure? I think -Y might be needed on Mac OS X but -X is
> working fine (fine, not super fast) with GRASS GIS for me on Linux (Ubuntu).


My knowledge is based on this email:

[GRASS-user] Running Grass Remotely
On Mon, Jan 11, 2010 at 11:56 PM, Glynn Clements wrote:
> stephen sefick wrote:
>
>> I would like to run grass remotely on a server running ubuntu.  I
>> would like to be able to forward the X11 to my desktop running ubuntu
>> 9.10 over the network.  Any help or pointers to reading material would
>> be greatly appreciated.
>
> Connecting to the server with "ssh -Y ..." should forward X11
> connections back to the desktop system automatically (so long as this
> hasn't been disabled in the server's sshd configuration). This is
> generally simpler than configuring the desktop system to allow remote
> X clients to connect directly.
>
> The server still needs all of the libraries which would be required to
> run GRASS on a desktop system, e.g. X libraries, Tcl/Tk or wxPython
> for the GUI, GDAL and PROJ for GRASS itself, etc.

I found also these notes/discussions:

https://wiki.archlinux.org/index.php/Secure_Shell#X11_forwarding
https://askubuntu.com/questions/35512/what-is-the-difference-between-ssh-y-trusted-x11-forwarding-and-ssh-x-u

Probably it depends on the security status of the remote server
(shared/not shared, internet/intranet etc).

Markus