DNS
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This RFC is an introduction to the Domain Name System (DNS), and omits
many details which can be found in a companion RFC, "Domain Names -
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A subset of DNS functions and data types constitute an official
protocol. The official protocol includes standard queries and their
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... " or "domain name" are used in many contexts beyond the
DNS described here. Very often, the term domain name is used to refer
to a name with structure indicated by dots, but no relation to the DNS ...
... DNS described here. Very often, the term domain name is used to refer
to a name with structure indicated by dots, but no relation to the DNS.
This is particularly true in mail addressing [Quarterman 86 ...
... DNS design goals ...
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The design goals of the DNS influence its structure. They are:
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... protocols, though all protocols have the notion of address.
The DNS tags all data with a class as well as the type, so
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The DNS has three major components:
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As a matter of policy, the DNS technical specifications do not mandate a
particular tree structure ...
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Before the DNS can be used to hold naming information for some kind of
object, two needs must be met:
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... compatibility with old usage, interactions
between different object definitions, and the inevitable urge to add new
features when defining the rules. The way the DNS is used to support
some object is often more crucial than the restrictions inherent in the
DNS.
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... features when defining the rules. The way the DNS is used to support
some object is often more crucial than the restrictions inherent in the
DNS.
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The DNS specifications attempt to be as general as possible in the rules
for constructing domain names. The idea is that the name of any
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... RRs). The order of RRs in a set is not significant, and need
not be preserved by name servers, resolvers, or other parts of the DNS.
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RRs are represented in binary form in the packets of the DNS protocol,
and are usually represented in highly encoded form when stored in a name
server or resolver. In this memo, we adopt a style similar to that used
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CNAME RRs cause special action in DNS software. When a name server
fails to find a desired RR ...
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DNS queries and responses are carried in a standard message format. The
message format has a ...
... RRs which match. This
type of query makes up such a vast majority of DNS queries that we use
the term "query" to mean standard query ...
... dedicated to individual departments or schools. [RFC-1033] catalogs
available DNS software an discusses administration procedures.
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... physical facilities controlled
by the same organization that manages the zone. For example, in the
current DNS, one of the name servers for the United Kingdom, or UK
domain, is found in the US. This allows US hosts to get UK data without
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The DNS provides an optional service which allows name servers to
distribute, and resolvers to cache ...
... one or more 32 bit IP addresses. Under the DNS, it
translates into a request for type A RRs. Since the DNS ...
... DNS, it
translates into a request for type A RRs. Since the DNS does
not preserve the order of RRs, this function may choose to
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This function retrieves arbitrary information from the DNS,
and has no counterpart in previous systems. The caller
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... supplies a QNAME, QTYPE, and QCLASS, and wants all of the
matching RRs. This function will often use the DNS format
for all RR data instead of the local host ...
... It is essential that this sort of condition should not be signalled as a
name or data not present error to applications. This sort of behavior
is annoying to humans, and can wreak havoc when mail systems use the
DNS.
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... K. Harrenstien, M. Stahl, E. Feinler, "HOSTNAME Server", RFC-953hist, SRI, October 1985.
This RFC contains the official specification of the hostname server protocol, which is obsoleted by the DNS. This TCP based protocol accesses information stored in the RFC-952 format, and is used to obtain copies of the host ...
This RFC contains the official specification of the hostname server protocol, which is obsoleted by the DNS. This TCP based protocol accesses information stored in the RFC-952 format, and is used to obtain copies of the host ...
... W. Lazear, "MILNET Name Domain Transition", RFC-1031, November 1987. Describes a plan for converting the MILNET to the DNS. ...
... Networks, vol 6, nr 3, July 1982.
Describes a name service for CSNET which is independent from the DNS and DNS use in the CSNET. ...
Describes a name service for CSNET which is independent from the DNS and DNS use in the CSNET. ...
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Describes a name service for CSNET which is independent from the DNS and DNS use in the CSNET. ...
Describes a name service for CSNET which is independent from the DNS and DNS use in the CSNET. ...