The Domain Name System (DNS) is essential for the Internet to work. Network administrators deal daily with DNS records. But DNS and its records can be hard to digest for new people in this business.
If you want to understand the functionality of the most common DNS records, here you have!
A or AAAA records
These two DNS records are in charge of linking a domain name with its corresponding IP address.
Both records have the same purpose. The difference is that A works with Internet Protocol version 4 (IPv4), while AAAA works with Internet Protocol version 6 (IPv6).