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Re: RBL for bots?
[email protected] wrote: > On Thu, 15 Feb 2007 11:30:34 EST, Drew Weaver said: > >> Has anyone created an RBL, much like (possibly) the BOGON list which >> includes the IP addresses of hosts which seem to be "infected" and are >> attempting to brute-force SSH/HTTP, etc? > >> It would be fairly easy to setup a dozen or more honeypots and examine >> the logs in order to create an initial list. > > A large percentage of those bots are in DHCP'ed cable/dsl blocks. As such, > there's 2 questions: > > 1) How important is it that you not false-positive an IP that's listed because > some *previous* owner of the address was pwned? > > 2) How important is it that you even accept connections from *anywhere* in > that DHCP block? That depends... Do you sell "Internet service" to you customers or something else. If the former then they're actually paying to receive connections from anywhere... > (Note that there *are* fairly good RBL's of DHCP/dsl/cable blocks out there. > So it really *is* a question of why those aren't suitable for use in your > application...)