Randall

An authoritative name server is a server that is responsible for providing the correct IP address for a domain name. The authoritative name server is the only server that can provide the correct IP address for a domain name.

An authoritative name server is also responsible for informing clients about changes to the domain name. When a domain name is changed, the authoritative name server is responsible for notifying all of the clients that are registered with the domain name.

An authoritative name server is also responsible for reserving IP addresses for the domain name. When a domain name is registered, the authoritative name server is responsible for reserving an IP address for the domain name.

The authoritative name server is also responsible for releasing the IP address that has been reserved for the domain name.