Thanks vince!

I assume that weewx is running as root for a normal apt-get debian type of 
install.

It looks like when I ssh as root it asks for a password each time. So if 
weewx-rsync fails each time as root, then would you not have to generate 
keys as root instead of a  non-root user?

On Thursday, January 13, 2022 at 1:28:32 PM UTC-5 vince wrote:

> "Host key verification failed." is the indicator here.
>
> You need to attempt to ssh into the remote computer as the local weewx 
> user (probably root) at least once so that ssh saves the other side's host 
> key.   When it prompts you, say yes.
>
> It should look something like this example:
>
> # ssh testuser@pi
> The authenticity of host 'nuc2 (192.168.1.171)' can't be established.
> ECDSA key fingerprint is 4e:8a:b5:6a:12:a2:a0:6d:f6:64:07:35:d0:e7:17:1b.
> Are you sure you want to continue connecting (yes/no)? yes
> Warning: Permanently added 'nuc2,192.168.1.171' (ECDSA) to the list of 
> known hosts.
>
>
> Lastly,  your log and weewx.conf show a user name of 'remote_user' which 
> I'm hoping is a typo.   If it's what you really want, you will need a user 
> named "remote_user" created on the host you want to rsync to, and they will 
> need to be able to write to whatever directory on the remote side that you 
> specified in weewx.conf or you'll get permission errors.
>
>

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