The Domain Name System
For example, the older format of IP addresses, IPv4, looks
like this: 123.45.67.89. The new version, IPv6, looks even more compli-
cated: 2001:db8::ff00:42:8329.
This is where the Domain Name System (DNS) comes in. A DNS server func-
tions as the phone book for the internet, translating domain names into
IP addresses (Figure 3-2).
... See moreKnowing the IP address(es) of your organization is the first step toward finding what is currently listed, but if you’re not sure there are several options. You can use the IP addresses of the resolver that we utilized earlier in this chapter or you can look at arin.net (Figure 18-16). Using the resolver (or shodan) may return results of server IP
... See moreLee Brotherston, Amanda Berlin • Defensive Security Handbook
Domain Naming
ambient.institute
Most people don't realize that "the internet" at its core is a bunch of cables laid under the sea and across the world that transport data as light.
There are 500-600 nondescript buildings which are airports for light (IXPs) and 13 DNS root servers that are air traffic control. https://t.co/3YLs7jrDj1