kconner

macOS Internals

Understand your Mac and iPhone more deeply by tracing the evolution of Mac OS X from prelease to Swift. John Siracusa delivers the details.

Starting Points

How to use this gist

You've got two main options:

atoonk

Summary

Total number of IPv4 addresses: 100,750,168. That’s the equivalent of just over six /8’s Also see this blog: https://toonk.io/aws-and-their-billions-in-ipv4-addresses/

just for fun, let's put a value number on that

Total value at, $20 per IP: => $2,015,003,360

Total value at, $25 per IP: => $2,518,754,200

n0531m

#!/bin/bash 

# https://cloud.google.com/compute/docs/faq#find_ip_range
# nslookup -q=TXT _cloud-netblocks.googleusercontent.com  8.8.8.8

myarray=()
for LINE in `dig txt _cloud-netblocks.googleusercontent.com +short | tr " " "\n" | grep include | cut -f 2 -d :`
do
	myarray+=($LINE)
	for LINE2 in `dig txt $LINE +short | tr " " "\n" | grep include | cut -f 2 -d :`