Steve Huff napsal(a):
let me add another suggestion to the flood: once you've rebuilt the box, install DenyHosts (http://denyhosts.sourceforge.net/). this tool is quite effective at blocking brute-force ssh attacks; not only will this make it much harder for an attacker even if you should happen to set a weak password on an account in the future, but it will also reduce the amount of CPU time and memory wasted on dealing with brute-force ssh attacks.
My suggestion is pam_abl. David