On 6/19/10 3:16 PM, Cristian Rodríguez wrote:
> El 19/06/10 17:24, Tom Eastep escribió:
> 
>> What you are trying to accomplish is not possible with Shorewall.
>>
> 
> And I hope will never be ;-)

I don't see how any packet filter could do this. All SSH traffic is
encrypted so an intermediate node (e.g., the Shorewall box) has no hope
of understanding when a remote host has successfully authenticated on a
local host. Then the intermediate node has to somehow remember that it
opened another port as result of this particular connection and must
close that other port when this connection closes. But what if the
remote host opens 2 SSH connections? Or 432 connections? Then closes the
original connection?

The whole thing is fantesy...

-Tom
-- 
Tom Eastep        \ When I die, I want to go like my Grandfather who
Shoreline,         \ died peacefully in his sleep. Not screaming like
Washington, USA     \ all of the passengers in his car
http://shorewall.net \________________________________________________

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