Bug#846165: .../.ssh/config line 127: Bad protocol spec '1'.

[Robert de Bath <robert$@debath.co.uk>]

That's exactly what I want to do, I have a session in the config file
for the ssh1 package.

The ssh2 package breaks when it sees it.

Now what I would think as a nice polite feature would be for the
application that has the '/usr/bin/ssh' name to call the right version
of ssh if it sees a 'bad' "protocol", "Cipher" or "Ciphers" line in an
active part of the .config file.

A poorer implementation would error if it's actually told to attempt
an ssh1 connection.

Throwing it's toys out of the pram when it's supposed to be ignoring a 
"Protocol 1" line is not what I would expect.

--
Rob.                          (Robert de Bath <robert$ @ debath.co.uk>)
                                             <http://www.debath.co.uk/>

On Mon, 28 Nov 2016, Russ Allbery wrote:

> Robert de Bath <robert$@debath.co.uk> writes:
>
> > Package: ssh
> > Version: 1:7.3p1-3
>
> > This error occurs whatever I attempt to connect to, even though the
> > particular stanza of the config as nothing to do with the host I'm
> > connecting to. It is obviously inefficient and much too aggressive.
>
> > I obviously still have a use for v1 as there isn't an ssh v2 sufficiently
> > portable to install on the machine in question.
>
> Per /usr/share/doc/openssh-client/NEWS.Debian.gz (which apt-listchanges
> would show to you automatically):
>
> openssh (1:7.1p1-2) unstable; urgency=medium
>
>  OpenSSH 7.0 disables several pieces of weak, legacy, and/or unsafe
>  cryptography.
>
>   * Support for the legacy SSH version 1 protocol is disabled by default at
>     compile time.  Note that this also means that the Cipher keyword in
>     ssh_config(5) is effectively no longer usable; use Ciphers instead for
>     protocol 2.  The openssh-client-ssh1 package includes "ssh1", "scp1",
>     and "ssh-keygen1" binaries which you can use if you have no alternative
>     way to connect to an outdated SSH1-only server; please contact the
>     server administrator or system vendor in such cases and ask them to
>     upgrade.
> [...]
>
> --
> Russ Allbery (rra@debian.org)               <http://www.eyrie.org/~eagle/>