Offending ECDSA key in /home/peterm/.ssh/known_hosts:8
    remove with:
    ssh-keygen -f "/home/peterm/.ssh/known_hosts" -R "192.168.1.9"

tells you how.  You will then be able to log in after agreeing to generate a
new key.

Thanks Terry, I am used to doing this every time I work with a different 
Pi/software.

Victor has sent me a solution that will work for me, but not sent it to LUG:

In your own home directory there should be a directory .ssh/ ; in that
directory you may already have a file called config. If it doedsn't exist,
create it with usual permissions.

In that file create the lines:

Host 192.168.1.9
    StrictHostKeyChecking no

Next time you say 'ssh 192.168.1.9' your ssh command should read the config
and override the strict host key check .
This only affects the behaviour of your own ssh client , when connecting to
this IP address. So it should not impact your overall security.

Peter




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