On Wed, Mar 6, 2024 at 9:18 AM Tony Molloy <tony.moll...@gmail.com> wrote:
>
> Thanks, yes the real problem is with the configuration of sshd on CS-9. It 
> seems to be slightly different than on CS-8. So I don't have ssh working on 
> the CS-9 box yet. I get the following error when I try to ssh between 
> accounts even on the laptop box itself.
>
>     sshd[2608]: refusing RSA key: Invalid key length [preauth]
>     sshd[2608]: Accepted password for root from 192.168.1.8 port 35958 ssh2
>
> So I was hoping for the test of BackupPC that running a manual backup when 
> the ssh login failed that it would fall back and ask for a password. This is 
> just a test laptop and I wanted to make sure all the services I regularly use 
> were working on it before I upgraded my home network.
>
> So it's back to sorting out sshd.


It looks like they have changed the acceptable key pairs for sshd in
CS-9.   I found this article saying you either have to configure the
crypto policy to accept SHA1 or generate new key pairs with an
acceptable format.
https://serverfault.com/questions/1095898/how-can-i-use-a-legacy-ssh-rsa-key-on-centos-9-stream

-- 
   Les Mikesell
     lesmikes...@gmail.com


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