break-in attempts on my server

[rajiv at alum.mit.edu (Rajiv Aaron Manglani)]

> Is there *anything* else I can do?  There's hundreds of these  
> attempts.

i block these attempts on my machine using http://www.sshblack.com/

"The sshblack script is a real-time security tool for secure shell  
(ssh). It monitors *nix log files for suspicious activity and reacts  
appropriately to aggressive attackers by adding them to a "blacklist"  
created using various firewalling tools -- such as iptables --  
available in most modern versions of Unix and Linux. The blacklist is  
simply a list of source IP addresses that are prohibited from making  
ssh connections to the protected host. Once a predetermined amount of  
time has passed, the offending IP address is removed from the  
blacklist."