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

Email forwarders

Email delivery and email forwarding are outside the actual DNS protocol once the MTAs have used DNS to determine where to attempt delivery on a given message.

We mention email forwarders here because, when working with DNS and domain names, this often ends up being your problem. Many registrars, web-hosting providers, and DNS operators provide email forwarding and backup spooling as part of the overall service.

Generic email forwarding

This means you are providing a mechanism for your users to map or forward messages at their own domain names to addresses at other domains. From a DNS standpoint, when somebody enables this on a domain you manage, you need to set that domain's MX handler to a mail server...