What is authoritative and Nonauthoritative DNS?
An authoritative answer comes from a nameserver that is considered authoritative for the domain which it’s returning a record for (one of the nameservers in the list for the domain you did a lookup on), and a non-authoritative answer comes from anywhere else (a nameserver not in the list for the domain you did a lookup
How do I know if my DNS is authoritative?
To find out who is responsible for DNS hosting of a domain, you need to find the authoritative DNS servers (or Name Servers) for that domain. A list of DNS servers authoritative for the domain is shown in the Name Server (NS) record. To find this record, you can use the NSLOOKUP tool.
What is authoritative DNS answer?
The term authoritative refers to any DNS servers that has a complete copy of the domain’s information, whether it was entered by an administrator or transferred from a primary server. Thus, a secondary server can and should be authoritative for any domain for which it performs secondary authoritative resolution.
What are authoritative name servers?
An authoritative name server is a name server that gives answers in response to questions asked about names in a zone. An authoritative-only name server returns answers only to queries about domain names that have been specifically configured by the administrator.
How many types of DNS are there?
3 types of DNS servers—DNS Resolver, DNS Root Server and Authoritative Name Server. 10 types of common DNS records—including A, AAAA, CNAME, MX and NS.
What is the importance of using DNS?
DNS stands for Domain Name System. This system is arguably one of the most important aspects of the Internet. DNS ensures the Internet is not only user-friendly but also works smoothly, loading the content users ask for quickly and efficiently.