The original DNS was based on Request for Comment (RFC) 882 (“Domain Names: Concepts and Facilities”) and RFC 883 (Domain Names–Implementation and Specification), which were superseded by RFC 1034 (“Domain Names–Concepts and Facilities”), and RFC 1035 (“Domain Names–Implementation and Specification”).Additional RFCs that describe DNS security, implementation, and administrative issues later augmented the original design specifications.As each DNS record comes with a Time To Live value which will oblige each DNS server in the resolution chain to do caching during the amount of seconds mentioned by this value.
Domain Name System (DNS) is the default name resolution service used in a Microsoft Windows Server 2003 network.
DNS is part of the Windows Server 2003 TCP/IP protocol suite and all TCP/IP network connections are, by default, configured with the IP address of at least one DNS server in order to perform name resolution on the network.
Windows Server 2003 DNS is also commonly deployed as a non-Active Directory, or standard, Domain Name System solution, for the purposes of hosting the Internet presence of an organization, for example.
DNS originated in the early days of the Internet when the Internet was a small network established by the United States Department of Defense for research purposes.
As the number of hosts on the Internet grew, the traffic generated by the update process increased, as well as the size of the HOSTS file.
The need for a new system, which would offer features such as scalability, decentralized administration, support for various data types, became more and more obvious.The Windows NT 4.0 DNS server, like most DNS implementations, has its roots in RFCs 10.The RFCs used in Microsoft Windows 2000 and Windows Server 2003 operating systems are 1034, 1035, 1886, 1996, 1995, 2136, 2308, and 2052.In this environment, DNS namespaces mirror the Active Directory forests and domains used by an organization.Network hosts and services are configured with DNS names so that they can be located in the network, and they are also configured with DNS servers that resolve the names of Active Directory domain controllers.In conclusion, even without any DNS caching solution in place, there will still be a delay between the moment you change the DNS records and the change is seen on a PC.