Book Image

Managing Mission - Critical Domains and DNS

By : Mark E.Jeftovic
Book Image

Managing Mission - Critical Domains and DNS

By: Mark E.Jeftovic

Overview of this book

Managing your organization's naming architecture and mitigating risks within complex naming environments is very important. This book will go beyond looking at “how to run a name server” or “how to DNSSEC sign a domain”, Managing Mission Critical Domains & DNS looks across the entire spectrum of naming; from external factors that exert influence on your domains to all the internal factors to consider when operating your DNS. The readers are taken on a comprehensive guided tour through the world of naming: from understanding the role of registrars and how they interact with registries, to what exactly is it that ICANN does anyway? Once the prerequisite knowledge of the domain name ecosystem is acquired, the readers are taken through all aspects of DNS operations. Whether your organization operates its own nameservers or utilizes an outsourced vendor, or both, we examine the complex web of interlocking factors that must be taken into account but are too frequently overlooked. By the end of this book, our readers will have an end to end to understanding of all the aspects covered in DNS name servers.
Table of Contents (17 chapters)
7
Types and Uses of Common Resource Records

Adding IPv6 to your zones

Adding IPv6-enabled hostnames to your zones is simply a matter of adding AAAA (also known as quad-A) RRs, which we looked at in Chapter 6, DNS Queries in Action, in the Types and uses of common resource records section.

As we observed, A6 records were also defined as another method of specifying IPv6 hosts that have since been deprecated.

Reverse DNS for IPv6

Setting up reverse DNS for IPv6 blocks works in the same fashion as under IPv4. The reverse mappings under IPv6 occur under the special ip6.arpa namespace (in contrast with IPv4's in-addr.arpa):

$ host dns4.example.info dns4.example.info has address 194.0.2.19
dns4.example.info has IPv6 address 2001:678:5::13

$ host 2001:678:5::13
3.1.0...