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Managing Mission - Critical Domains and DNS
book

Managing Mission - Critical Domains and DNS

by Mark E.Jeftovic
June 2018
Intermediate to advanced content levelIntermediate to advanced
368 pages
11h 1m
English
Packt Publishing
Content preview from Managing Mission - Critical Domains and DNS

NAPTR

NAPTR stands for Naming Authority Pointer.

NAPTRs are primarily used in IP telephony applications in conjunction with SRV RR records within the context of ENUM.

ENUM provides a mechanism for mapping e164-format telephone numbers into the DNS. The full mechanism is described in RFC6116, but it is basically any telephone number in the form of +A.BBBBBBBBBBB, where + is a literal "+" character, A is the NPA Country Code, and BBBBBBBBBBBB is the telephone number with all non-numerals and any leading zeros stripped out.

The process works by reversing the digits of the phone number and then putting a "." between each digit, finally (in the case of public ENUM) appending the special domain, e164.arpa.

For example, the phone number 1-(416)-535-8672 ...

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Publisher Resources

ISBN: 9781789135077Other