3 years ago

Category: Database, Data

At its most basic level, Domain Name System (DNS) is a directory of translations between human-readable domain names (such as google.com or amazon.com), and IP Addresses. An Internet Protocol address (IP Address) is a numerical label assigned to each device connected to a computer network, that uses the Internet Protocol for communication.

There are two versions of IP Addresses available and in everyday use; IPv4 and IPv6.

The main difference is the recursive resolver is at the beginning of the DNS query, and the authoritative nameserver is at the end of the query.

For an iterative DNS query, the DNS client will allow the DNS server to return the best answer it can.