Re: -current dropping ssh connections

bob prohaska <fbsd@www.zefox.net> wrote:

> That seems worth a try.
> The notion of an ssh escape (~. in this case) finding its way into the data stream is new to me.

Thinking again, that looks like corruption coming down the ssh connection.
For the ssh escape char to affect anything (note it needs to be preceeded
by a new line) it would have to be sent up the line.

For an example, assuming ssh has the default escape char, look at the difference between:

printf 'pwd;\n~.;echo sleeping.; sleep 5' | ssh -tt user@host

and with the same printf, but no escape char:

printf 'pwd;\n~.;echo sleeping.; sleep 5' | ssh -tt -e none user@host

You can see how the former closes the connection due to the \n~.

(The -tt forces a terminal/interactive session to be set up - normally, as we are
piping input to ssh in this case, the terminal isnt set up, and the escape character
isn't used - it's only recongnised in interactive sesions by default)

I personally have "EscapeChar none" in my ssh_config, but I suspect this
is probably not the issue here, still, can't hurt to try it!

Cheers, Jamie