How do I stop bruteforce SSH login attempt?

[Scott Sharkey]

Soo-Hyun Choi wrote:
> Hi,
> 
> A few days ago, I have noticed that my system is under constant
> attack(?) with a bruteforce SSH login - e.g., from a single IP
> address, it tries like 100 ~ 200 ssh login trial with all different
> user names, and go away.
> 
> I know how to block it in a FreeBSD system with "denyhost" or
> "bruteforceblocker" from the ports, but I have little knowledge in my
> Ubuntu 5.10 box.

Why not run DenyHost on Ubuntu-- it works. Search Google for DenyHosts,
and you'll find it.

-Scott