Re: [X2Go-User] Questions regarding features and configuration advice of X2go

[Jörg Kastning]

Am 20.12.2021 um 17:44 schrieb Stefan Baur:

Am 20.12.21 um 16:14 schrieb richard lucassen:

In short: forget about it. If you're allowing users SSH access for
X2Go, they WILL be able to copy data. You can make it a little harder
for them if you think you have to, but as long as they are in control
of the client hardware, they will always be able to do so.

I have no complete answer to it, but if you use keys instead of
user/pass then you will be able to restrict ssh in
~/.ssh/authorized_keys

from="1.2.3.4,2.3.4.5,9.8.7.6",no-port-forwarding,command="/path/to/script",no-X11-forwarding,no-agent-forwarding,no-pty
ssh-rsa <key>

(all in 1 line)

This is an example of what I use here, I think there must be many other
options available.

see "man authorized_keys"

That's all fine for non-interactive commands or simple scripts. But have
you tried to use this with X2Go?

That's an interesting question.
@richard: Do you use this config with X2Go? Does it work?





Regards,
Joerg

Thanks for your answers so far. I'm aware that there is no such thing as 100% security. I just try to figure out what's possible and what risks will remain. In the end it's not my job to decide whether to take the risk or not. But I would like to know what maybe possible to prevent to advice the project on this. So I ask in a very early stage of the project so I won't have to hurry later.

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