route information

Darren Tucker dtucker at
Mon Jan 21 12:02:43 EST 2008

Richard Mitchell wrote:
> # echo "bouncehost: " $bouncehost
> # echo "target    : " $target
> # echo "port      : " $port

If you're going to do this then you would be better off with

echo "bouncehost: $bouncehost" >/dev/tty 2>/dev/null

so that the output goes to the controlling terminal (if you have one) 
rather than stdout.  This means that anything expecting the ssh 
connection to be clean (eg scp, rsync) will still work.

> ssh $bouncehost nc -w 1 $target $port

I have a hack that adds "portforward from stdin/out" which is useful for 
this kind of thing as it does not require netcat on the intermediate 
host (eg "ssh -N -L stdio:$target:$port $bouncehost").  The syntax is 
ugly but it works.

Darren Tucker (dtucker at
GPG key 8FF4FA69 / D9A3 86E9 7EEE AF4B B2D4  37C9 C982 80C7 8FF4 FA69
     Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.

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