On 5/3/24 17:02, Fred wrote:
> ssh: connect to host nas800 port 22: Connection refused
> fred@aragog:~$
>
> It doesn't say why the connection is refused.

Connection refused means just that nothing is listening at this port. If
somebody doesn't open the door when you ring, they also won't tell you
why exactly they didn't open the door :-P

That said, it sounds a lot like sshd is not listening on nas800 port 22,
hence nobody answering on port 22.
You can check on nas800 with
netstat -ln|egrep "tcp.+22"

Make sure you have 'openssh-server' installed and it is started.

HTH - Christoph