actually, the belief is that the ISP would be enough. forgive the ignorance involved (i despise networking), where do you get PTR records?
On Feb 25, 2013, at 11:19 AM, Edward Ned Harvey (lopser) wrote: >> From: [email protected] [mailto:[email protected]] >> On Behalf Of Andrew Hume >> >> she needs to get whois type information for approx 1M ip addresses in teh >> US. > > Could you clarify that? Because that part of the question doesn't make > sense. > > From an IP address, you could lookup a PTR record ... which will generally > get you the name of the ISP that owns the IP address. Unless it's a server > where some admin carefully set the PTR to match something specific, generally > for the purpose of operating a DNS or SMTP server. If the IP address belongs > to a server, then you could conceivably get WHOIS for that domain. But aside > from that ... > > Sounds like you want to lookup WHOIS for 1m US users, where 999,000 of them > will be Comcast, Time Warner, AT&T, Verizon, Earthlink ... That's a whole lot > of repeat queries. > > Maybe you're not actually trying to lookup IP addresses. Maybe you mean you > want WHOIS for 1m US domain names? And godaddy doesn't like the flood of > WHOIS queries? For that ... I say ... Good luck. > > >> she can, and has, just simply bang out the queries but by observation, >> one's ip address will get blacklisted if the query rate exceeds 1000 or so >> per >> day. >> apart from the ethically dubious technique of renting amazon servers and >> using >> them until they get blacklisted, is there any better way to get this >> information >> quicker? like a commercial service? we expect the data changes slowly, so >> month or 3 old data would likely be fine. > > You're not the first to think of that. Trust me, all of Amazon's IP > addresses are already blacklisted. I already tried using them to cover > temporary outages of mail delivery. It's only possible if you first get a > static elastic IP, then put in lots of effort to get its reputation cleared, > and then maintain it diligently. > > ----------------------- Andrew Hume 623-551-2845 (VO and best) 973-236-2014 (NJ) [email protected]
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