[clue-tech] Protecting against the ssh hack

[Jack Parker]

Despite not advertising my domain name, despite hiding behind a dyndns
router, I see that someone has been attacking my box against the ssh port
(the only one which is open).

Two things I'd like to do, one is install sshdfilter - I don't see a lot of
commentary 'out there' on it - any thoughts from here?

The second is restrict root login to the console only, I've done this in the
telnet world, but don't remember it.  Any pointers?

Regards,
Jack Parker