[Info-vax] problem conncting via ssh to Fedora-linux-server FC22

[Simon Clubley]

On 2015-06-01, Joukj <joukj at hrem.nano.tudelft.nl> wrote:
> Hi All,
>
>
> I recently upgraded one of my Fedora-linux servers from FC21 to FC22. 
> After the upgrade I was not able to connect via ssh from my OpenVMS 
> machines to this server (see log for connections to FC22 (failed) and 
> FC21 (succeeded) below.) Connection from any of my linux servers is 
> still possible.
> It seems that something goes wrong when negotiating the ciphers.
>
> As ssh-client I tried both (on OpenVMS v 8.4):
>    HP TCP/IP Services for OpenVMS Alpha Version V5.7 - ECO 5
>    HP TCP/IP Services for OpenVMS Industry Standard 64 Version V5.7 - ECO 5
>
> Is my TCP/IP stack to blame? Is there a work-around?
>

It may really be a cipher problem in which case you will have to see
what has changed on the Linux end.

However, it's also possible UCX SSH is failing due to the presence of
multiple authentication methods along with some unrelated change.

I've seen this before when operating UCX 5.6 sftp against a third party
sftp server. In that case, the workaround I used was to force the
password authentication method using a command line sftp option and
which should therefore be present as a ssh command line option as well.

I no longer work for the employer I did this for and I can't remember
the option syntax I used so I can't tell you what syntax to try.

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
Microsoft: Bringing you 1980s technology to a 21st century world