securing SSH, FBSD systems

[albi]

> Would someone mind briefly talking about securing FBSD systems from
> such attacks, at least in a manner that's a bit more extensive and
> detailed than just saying "use Snort"?  I'm not a newbie to FBSD, but
> I'm not a *NIX guru either.  I'd really appreciate your help.

my approach is to use AllowUsers in the sshd_config, and since quite a while
i'm using sudo to do "root-tasks", and having a disabled root-passwd entry