4 ms·
If we could generate random IP samplings by crawling, and if the IP addresses are linearly incremented, then we would have a problem analogous to the German tan
by theatraine 15y ago
If we could generate random IP samplings by crawling, and if the IP addresses are linearly incremented, then we would have a problem analogous to the German tank problem (http://en.wikipedia.org/wiki/German_tank_problem http://en.wikipedia.org/wiki/German_tank_problem) allowing us to compute the minimum variance estimate of the total number of IPs from a random sampling as: max(IPs observed)*(1+(number of IPs observed)^-1)-1.
- dredmorbius 15y agoYou can probably simplify that task markedly using the Routeviews Project data. http://www.routeviews.org/ http://www.routeviews.org/ Zonefiles are downloadable. If you can get a comprehensive list of AWS/Amazon ASNs, you could also hit up the CIDR Report: http://www.cidr-report.org/as2.0/ http://www.cidr-report.org/as2.0/ The rabbit I haven't been able to pull from a hat yet is getting that list of ASNs without a fair bit of legwork.