URI record

In the Domain Name System, a Uniform Resource Identifier (URI) record (RFC 7553) is a means for publishing mappings from hostnames to URIs.

Record format

The URI record is expressed in a master file in the following format:

_service._proto.name. TTL class URI priority weight target.

where:

service

the symbolic name of the desired service.

proto

the transport protocol of the desired service; this is usually either TCP or UDP.

name

the domain name for which this record is valid, ending in a dot.

TTL

standard DNS time to live field.

class

standard DNS class field (this is always IN).

priority

the priority of the target host, lower value means more preferred.

weight

A relative weight for records with the same priority, higher value means more preferred.

target

This field holds the URI of the target, enclosed in double-quote characters ('"'), where the URI is as specified in RFC 3986

An example DNS URI resource record

_ftp._tcp.example.com.   3600 IN URI 10 1 "ftp://ftp1.example.com/public"

See also

• List of DNS record types

References

• RFC 7553 – The Uniform Resource Identifier (URI) DNS Resource Record
• RFC 3986 – Uniform Resource Identifier (URI): Generic Syntax

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