Secure64 DNS Authority is a DNS authoritative server
that provides the highest levels of security, availability and resiliency under attack without the cost and complexity of conventional solutions.
to at least two (2) of their DNS servers, and would be listed as the authoritative server
In this paper we model the query resolution service in cache server and authoritative server as a dual queuing process.
The cache servers which are analyzed as servers with an equivalent service rate shared with other cache servers from the authoritative server.
This process typically proceeds until the final answer is returned by the authoritative server.
The authoritative server answers the query with multiple name servers.
Over 1,700 copies of the authoritative server have been downloaded since the first release of code in April of this year.
Additionally, ISC plans work on performance tuning for the authoritative server, work on a DHCP implementation and initial development of the command language.
To continue with the securitymanagement.com example, a query is sent by a DNS server on behalf of the requesting device to an Internet root authority server, which responds to the request with the address of an authoritative server
for all ".com" addresses to ask about this address.
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.
These service providers operate with recursive DNS servers, and if a query is unaddressed, it is further forwarded to authoritative servers
. Service providers alternatively choose to transform subscribers' resolving configuration either to their in-house recursive DNS servers or OpenDNS servers.
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