[cfarm-users] Sparc machine access

[Jeffrey Walton]

On Mon, Nov 29, 2021 at 11:32 PM Bart Van Assche via cfarm-users
<cfarm-users at lists.tetaneutral.net> wrote:
> ...
> I'm using an RSA key but can't log in to gcc210 nor to gcc211. OpenSUSE
> (OpenSSH_8.8p1) displays the following message:
>
> $ ssh gcc210.fsffrance.org
> Unable to negotiate with 213.178.77.185 port 22: no matching host key
> type found. Their offer: ssh-rsa,ssh-dss
>
> And Ubuntu (OpenSSH_8.4p1) displays the following message:
>
> $ ssh gcc210.fsffrance.org
> Unable to negotiate with 213.178.77.185 port 22: no matching key
> exchange method found. Their offer:
> gss-group1-sha1-toWM5Slw5Ew8Mqkay+al2g==,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
>
> Am I perhaps missing something?

Maybe related from the OpenSSH 8.8 release notes
(https://www.openssh.com/releasenotes.html):

    This release disables RSA signatures using the
    SHA-1 hash algorithm by default...

    Incompatibility is more likely when connecting to
    older SSH implementations that have not been
    upgraded or have not closely tracked
    improvements in the SSH protocol. For these
    cases, it may be necessary to selectively
    re-enable RSA/SHA1...

Jeff