1 blockfinder by Jacob Appelbaum <jacob@appelbaum.net>, David <db@d1b.org>
3 "All that Blockfinder does is allow you to identify, contact and potentially
4 hack into every computer network in the world." - Rolling Stone, August 2010 [0]
6 Contrary to popular media claims, blockfinder is a simple text based console
7 tool that returns a list of netblocks for a given country. It does this by
8 fetching the following lists of allocations:
10 ftp://ftp.arin.net/pub/stats/arin/delegated-arin-latest
11 ftp://ftp.ripe.net/ripe/stats/delegated-ripencc-latest
12 ftp://ftp.afrinic.net/pub/stats/afrinic/delegated-afrinic-latest
13 ftp://ftp.apnic.net/pub/stats/apnic/delegated-apnic-latest
14 ftp://ftp.lacnic.net/pub/stats/lacnic/delegated-lacnic-latest
16 The list of ISO codes is ISO 3166-1 as found here:
18 http://www.iso.org/iso/home/standards/country_codes/country_names_and_code_elements_txt-temp.htm
19 http://en.wikipedia.org/wiki/ISO_3166-1
21 blockfinder has two methods of operation:
23 Update the lists of network object allocations
24 Returning a list of all netblocks (or asn, etc) for a given country
26 To use blockfinder, first create or update the cache:
30 Once you have a proper cache, search for the desired resource in the country
33 ./blockfinder -v -t mm
35 Additionally, to filter results for a specific protocol you can use a selector:
37 ./blockfinder -v -t mm:ipv4
40 On Windows (in cmd, PowerShell and 4nt) one may find blockfinder.bat useful:
44 [0] http://www.rollingstone.com/culture/news/17389/192242