authoritative server

authoritative server

A server that contains a master set of data. When there is a change in the data, the authoritative server is updated. Contrast with "non-authoritative server," which is typically a cache server that retains copies of data that were retrieved as a result of normal user queries. Non-authoritative servers may or may not have the latest version of the data.


Authoritative DNS Server
The authoritative server in the DNS system is the one that knows the actual IP address of a website. See DNS.
References in periodicals archive ?
to at least two (2) of their DNS servers, and would be listed as the authoritative server for this
This creates a secure link between each recursive and authoritative server, preventing malicious DNS responses from poisoning the recursive server's cache and protecting all of the participating ISP's customers.
Customers enjoy the full DNSSEC solution, including both real-time DNSSEC signing for authoritative server responses and high performance DNSSEC client validation for end-to-end protection.
For example, should a DNS response be unavailable from the recursive server's cache, DNS Advantage can rapidly secure a response from the locally trusted UltraDNS authoritative server on the same physical and secure network.
This would be both a change in the authoritative server and a change in the maintenance routine - who does the additions and deletions - which is obviously a powerful position and one currently coveted by NSI.
When a DNS client requests a DNS record, it can verify that the record received is identical to the record on the authoritative server.
When a user enters a URL from those domains into a web browser or email client, it is looked up in a DNS hierarchy that ends at VeriSign's authoritative servers.
Root servers are a critical part of the Internet's Domain Name System (DNS), providing information about authoritative servers for all Top Level Domains (TLDs) (such as ".
Nominum's DNS servers have been enhanced to optimise the upstream traffic to authoritative servers around the Internet.
The UltraDNS authoritative servers deployed within each partner network are functionally identical to those of the public UltraDNS network currently distributed across four continents.
Root servers make available information for finding authoritative servers for top-level domains; there are several hundred such domains, including "DE," "COM," "ORG," "UK," etc.