On 12 March 2012 14:31, suvayu ali <fatkasuvayu+li...@gmail.com> wrote:
> On Mon, Mar 12, 2012 at 11:04, Hiisi <hi...@fedoraproject.org> wrote:
>> Network setup:
>> A -> B -> C
>> Host A can connect to host B but not to host C directly. So, I do the
>> following. First, from host C I connect to B:
>> ssh -R 10002;localhost:22 user@B
>
> Shouldn't that ";" be a ":"?
>

Yes, thanks for correcting me.

>> When I need to connect to C from A first I connect to B:
>> ssh user@B
>> And from there I can go to C:
>> ssh user@localhost -P 10002
>> This thing, as you can see, is a classical ssh tunnel. However I would
>> like to use X applications on C from A, i.e. starting graphical
>> applications like firefox or rdesktop. Using -X when connecting to
>> each machine doesn't help. Could anybody provide me some hint on it?
>
> Anyway, now to your question. I think you should use the ProxyCommand
> option for ssh. If A, B and C are fixed. You can put the folowing in
> your ~/.ssh/config.
>
> # using B as proxy to C
> Host    C
>        User            useronC
>        ProxyCommand    ssh -q B nc %h 22
>
> Host    B
>        User            useronB
>
>
> This will let you do the following:
>
> $ ssh -X B
> $ ssh -X C
>

I don't have .ssh/config. Should I just create it?

> --
> Suvayu
>
> Open source is the future. It sets us free.
> --

Thanks for your help.
-- 
Hiisi.
Registered Linux User #487982. Be counted at: http://counter.li.org/
--
Spandex is a privilege, not a right.
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