cfarm211 sshd is old

[Dagobert Michelsen]

Hi Bruno, hi Freya,

> Am 23.06.2026 um 01:59 schrieb Bruno Haible <bruno at haible.de>:
> Since I just upgraded to a new Linux distro version, that ships with
> 
>  $ ssh -V
>  OpenSSH_10.2p1 Ubuntu-2ubuntu3.2, OpenSSL 3.5.5 27 Jan 2026
> 
> I cannot connect to cfarm211.cfarm.net any more. The login to 
> cfarm210.cfarm.net, on the other hand, works.
> 
> What is the difference?
> 
> cfarm210 (OK):
> 
> debug1: Local version string SSH-2.0-OpenSSH_10.2p1 Ubuntu-2ubuntu3.2
> debug1: Remote protocol version 2.0, remote software version OpenSSH_10.2
> debug1: compat_banner: match: OpenSSH_10.2 pat OpenSSH* compat 0x04000000
> 
> cfarm211 (FAIL):
> 
> debug1: Local version string SSH-2.0-OpenSSH_10.2p1 Ubuntu-2ubuntu3.2
> debug1: Remote protocol version 2.0, remote software version Sun_SSH_2.4
> debug1: compat_banner: no match: Sun_SSH_2.4
> 
> debug2: KEX algorithms: diffie-hellman-group-exchange-sha256,diffie-hellman-
> group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
> debug2: host key algorithms: ssh-rsa,ssh-dss
> 
> 
> The background:
>  - ssh-dss is disabled in OpenSSH 10.
>  - I don't have an ssh-rsa key.
>  - I have an ssh-ed25519 key, but that is apparently not supported by
>    Sun_SSH_2.4.
> 
> Could you please install OpenSSH sshd on cfarm211, like you did on cfarm210?

This is the SSH package from FractalKit.
@Freya: Would you mind updating the package on cfarm211 too?


Best regards

   — Dago

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"You don't become great by trying to be great, you become great by wanting to do something,
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