An “IPv4 nameserver” means a DNS server that you’re specifying by its IPv4 address (as opposed to IPv6 address). (Note that any nameserver can answer any kind of query – the ‘IPv4’ only describes how the nameserver itself is reached, but not what it does.)
Does DNS use IPv4 or IPv6?
DNS itself can run over either IPv4 or IPv6. A DNS server (authoritative nameserver or just resolver) using only IPv4 can answer IPv6 AAAA-record queries, and a DNS server using only IPv6 can answer IPv4 A-record queries.
How does IPv4 work with DNS?
The DNS server contains a database of public IP addresses and their corresponding domain names. Every device connected to the internet has a unique IP address that helps to identify it, according to the IPv4 or IPV6 protocols. The same goes for web servers that host websites.
What type of address is IPv4?
IPv4 addresses are 32-bit numbers that are typically displayed in dotted decimal notation. A 32-bit address contains two primary parts: the network prefix and the host number. All hosts within a single network share the same network address. Each host also has an address that uniquely identifies it.
Is IPv6 different from DNS?
DNS Records IPv4 uses ‘A’ records to store IP addresses where IPv6 uses ‘AAAA’ records to store IPv6 addresses. ‘AAAA’ records, or quad-A records as they’re sometimes called, are functionally equivalent to ‘A’ records and are written in the same basic way.
