Bug#343896: no longer works with HP iLO
On Sun, Dec 18, 2005 at 08:48:35PM +0100, Florian Weimer wrote:
> * Wichert Akkerman:
> > debug1: Remote protocol version 2.0, remote software version mpSSH_0.0.1
> > debug1: no match: mpSSH_0.0.1
>
> Find out what (Open)SSH version this actually is, we can then add a
> regexp to set the proper compatibility flags.
I suspect that this will not be enough, although it would certainly be
useful on general principles.
The message on which we're getting dispatch_protocol_error is
SSH2_MSG_CHANNEL_FAILURE. We've discovered that disabling SendEnv is a
workaround. My initial reaction was that this meant that the OpenSSH
client is not prepared for the possibility of a server that does not
support the "env" channel request. However, on further investigation I
discovered that OpenSSH sets the "want reply" flag in that channel
request to false; mpSSH appears not to be honouring that flag the way
that http://www.ietf.org/internet-drafts/draft-ietf-secsh-connect-25.txt
(expired draft though it is) says it should. I don't see any
bug-compatibility handling for this case in OpenSSH at the moment.
For further head-scratching value, when I deliberately break an OpenSSH
server so that it doesn't understand the "env" channel request and fails
to honour the "want reply" flag, the client emits the
dispatch_protocol_error messages noted by Wichert but manages to connect
anyway; so something more is going on here.
Cheers,
--
Colin Watson [cjwatson@debian.org]
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