[PATCH] Expose remote forwarding ports as environment variable

[Alex Bligh]

On 17 May 2013, at 14:30, Darren Tucker wrote:

> 1) on the client create a pair of named pipes
> 2) have ssh #1 on the client invoke a controlmaster ssh -N #2 on the server
> with the latter using "ProxyCommand=-". Redirect ssh #1's stdio to and from
> the named pipes and background it.
> 
> client$ ssh <fromssh >tossh -T -y server ssh -y -N -T -MS/tmp/ctl
> -oProxyCommand=- client &


The problem for me is at this step. You have to trust the client's command
on the server. What happens if they don't pass the correct -MS command?

In my application the clients are untrusted machines which may be behind
NATs etc.

-- 
Alex Bligh