Re: Problems with proxy connections

Chris Rapier wrote:
> Could someone explain to me how the proxy command regression test works?
> I'm having a problem as it relates to the HPN patch and could use a
> little insight into what is happening in the proxy connections.

Typically, the proxycommand is an external command that connects to the
server somehow (eg directly, via a SOCKS server). Usually (but not
necessarily) this will be over a TCP connection.

In the case of the regress test, the proxycommand is actually a shell
script that invokes sshd directly (in inetd mode, so it speaks the SSH
protocol on its stdin/stdout) rather than making some kind of network
connection. In fact the shell script wrapper isn't necessary, but it's
there to redirect sshd's stderr for debugging purposes.

> So the question is, what is this connection type and are there any
> thoughts on what the correct value would be to return?

Good question, but I don't have any answer other than "it depends".
Your arbitrary value of 128k or similar sounds as good as any.

A similar issue would also occur if a platform did not support the
SO_RCVBUF socket option (dunno if such a platform exists, now or ever).

--
Darren Tucker (dtucker at zip.com.au)
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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