TCP/IP Configuration and Management Manual

Configuration Reference
TCP/IP Configuration and Management Manual—427132-004
A-2
Other NonStop TCP/IP Services

DNSREV (Reverse Address-to-Name Mapping) on page A-14

Standard Resource Record Format on page A-14
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$INCLUDE on page A-15
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$ORIGIN on page A-16
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SOA—Start Of Authority on page A-16

NS—Name Server on page A-17
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A—Address on page A-17
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WKS—Well-Known Services on page A-18

CNAME—Canonical Name on page A-18

HINFO—Host Information on page A-17

MB—Mailbox on page A-18

MR—Mail Rename Name on page A-19

MINFO—Mailbox Information on page A-19

PTR—Domain Name Pointer on page A-18

MX—Mail Exchanger on page A-20

MG—Mail Group Member on page A-19
Other NonStop TCP/IP Services
Many components make up the NonStop TCP/IP subsystem. This subsection
describes additional NonStop TCP/IP services that are included as part of the NonStop
TCP/IP software library. The descriptions that follow specifically point out any
nonconformance to the protocols and standards that is required by the NonStop
operating system.
The programmatic interface provided by the socket library is described in detail in the
TCP/IP Programming Manual.
Domain Name Server (DNS)
The Domain Name Server (DNS) serves as the yellow pages and white pages of an
internet community. It provides the translation and mapping of human-readable
machine names into IP addresses. Host table lookup routines (such as the Domain
Name Resolver, described below) work well for small networks that include only a few
machines where the organizations in the network cooperate in maintaining the tables:
a master file for the entire network can be maintained at a central location by a few
people. However, a single centralized clearinghouse for host-name resolution does not
work well for large networks which include machines that cross organizational