[arch-general] SSH Tunnel doubts

[Daniel Hilst Selli]

Em 18-07-2011 18:14, Sven-Hendrik Haase escreveu:
> On 07/18/2011 10:03 PM, David J. Haines wrote:
>> And yet, it doesn't touch on forwarding of anything other than X11 data.
>>
>> To answer the original question, you're missing the host you're 
>> trying to
>> connect to, but I'll fill in the blanks
>>
>> ssh -L X:host1:Y host2 means open a connection to host2, including 
>> shell,
>> and forward anything sent to localhost on port X to host1 on port Y. 
>> Host1
>> and host2 can be the same machine. This comes in useful for things like
>> forwarding VNC securely, e.g. ssh -L 60000:remotevncserver:5901
>> remotevncserver and then connecting to the vncserver at localhost:60000
>>
>> ssh -R X:host1:Y host2 means open a connection to host2, including 
>> shell,
>> and then host2 should listen on port X for connections, which it will 
>> then
>> send back to your local host, which will forward the connection on to 
>> host1
>> on port Y.
>>
>> In your example you're missing the host you're connecting to, but I 
>> can tell
>> you that:
>>
>> ssh 192.168.1.200
>> ssh -L 1000:192.168.1.100:2000 192.168.1.100
>>
>> when you start from 192.168.1.100 is functionally equivalent to
>>
>> ssh -R 1000:192.168.1.100:2000 192.168.1.200
>>
>> when you start from 192.168.1.100, in that both solutions will forward a
>> connection from 192.168.1.200:1000 to 192.168.1.100:2000 (I didn't 
>> use the
>> port 22 from your example, as that would imply that ssh wasn't running
>> there, so you'd need to use -p and other messiness).
>>
>> Hope this helps,
>>
>> David J. Haines
>> dhaines at gmail.com
>>
>>
>> On Mon, Jul 18, 2011 at 3:12 PM, Jeffrey Lynn Parke Jr.<
>> jeffrey.parke at gmail.com>  wrote:
>>
>>> On Mon, Jul 18, 2011 at 2:05 PM, Daniel.<danielhilst at gmail.com>  wrote:
>>>
>>>> I have some doubts about traffic forwarding
>>>>
>>>> Supposing that my IP is 192.168.1.100
>>>> and the remote is 192.168.1.200
>>>>
>>>> is this ->  ssh -R 1000:192.168.1.200:22
>>>> the same as this:
>>>> ssh 192.168.1.200
>>>> ssh -L 1000:192.168.1.100:22
>>>>
>>>>
>>>> ???
>>>>
>>>> -- 
>>>> *"Do or do not. There is no try"*
>>>> *  **Yoda Master*
>>>>
>>>
>>> You may want to read the wiki article for ssh.
>>> https://wiki.archlinux.org/index.php/SSH
>>>
>>> It is very detailed.
>>>
>>>
>>> -- 
>>> "Breath Deeply and Dream"
>>>
> Please put that in the SSH article! Also, please bottom post from now on.
>
> -- Sven-Hendrik
Thanks for all helping .. I got it.. I was using putty and that mess up 
the syntax up my head..

Thanks David, your explanation was really clarifying

-- 
"Do or do not... there is no try" Yoda Master