How do I prevent unauthorized ssh login attempts?

[Andreas Widerøe Andersen]

On 4/26/07, Arek Czereszewski <arekczer at gmail.com> wrote:
>
> Andreas Widerøe Andersen wrote:
> > I'm getting a lot of unauthorized ssh login attempts. I have a pretty
> basic
> > FreeBSD 6.2 setup. I have compiled my own kernel. Here's what I get from
> my
> > daily security run output:
> [...]
>
> Run sshd on other port.
> And say about this your ssh users.


Can I change the ssh port on a live server somehow without getting locked
out? The server is on a remote co-location a flight away from me.

/Andreas