Unrelated IP addresses
Posted Oct 26, 2009 16:07 UTC (Mon) by giraffedata
In reply to: Unrelated IP addresses
Parent article: Distributed brute force ssh attacks
Multiply by 1000 nodes and you get 1000 attempts per hour.
And divide that by 1000 nodes and you get 1 attempt per hour, and since my actions will secure 1 of the 1000 nodes, that's the number that matters for me.
I think we're talking about two kinds of hacks: 1) someone wants into my system; 2) someone wants into any system. In (2), there's no reason for the hacker to hit my system frequently, but there's also correspondingly less chance he'll get into my system.
Hey another statistical reality: the user's password change interval is irrelevant to the probability of successfuly guessing. The expected number of guesses it takes is the same no matter how many how times the password changes while the guessing is going on.
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