Looking for a working example of sshd_config setup fille

[bruce]

hi Peter.

rsa is not as secure for earlier implantation.  for later ones, it should
be ok, or u could use another encryption key  system.  ed_xxx i forget the
actual encryption name.

but regardless, whatever u select, ull have to regenerate the pub/private
keys to be applied to your boxes.

once this is done, u should be ok

oh..  as a test -- forgive me as this might be basic.

ssh -vv  -I file server is good to see any errs


On Mon, Aug 18, 2025, 9:23 AM Peter Flynn <peter at silmaril.ie> wrote:

> On 18/08/2025 14:16, Colin Law wrote:
> [...]
>
> > What do I have to do after installing Ubuntu Desktop on machine A
> > before I can ssh into machine B (assuming it already has ssh server
> > working)?
>
> The only note I have is the one I posted earlier. On Machine B (the
> target system), add these two lines to /etc/ssh/sshd_config
>
> PubkeyAcceptedKeyTypes +ssh-rsa
> HostkeyAlgorithms +ssh-rsa
>
> But others have warned that RSA is untrustworthy or obsolete, so I am
> assuming that while this may work, it is not optimal, and there may be
> some other step required on new systems.
>
> Peter
>
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