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Managing Mission - Critical Domains and DNS

You're reading from  Managing Mission - Critical Domains and DNS

Product type Book
Published in Jun 2018
Publisher Packt
ISBN-13 9781789135077
Pages 368 pages
Edition 1st Edition
Languages
Concepts
Author (1):
Mark E.Jeftovic Mark E.Jeftovic
Profile icon Mark E.Jeftovic
Toc

Table of Contents (17) Chapters close

Preface 1. The Domain Name Ecosystem 2. Registries, Registrars, and Whois 3. Intellectual Property Issues 4. Communication Breakdowns 5. A Tale of Two Nameservers 6. DNS Queries in Action 7. Types and Uses of Common Resource Records 8. Quasi-Record Types 9. Common Nameserver Software 10. Debugging Without Tears – DNS Diagnostic Tools 11. DNS Operations and Use Cases 12. Nameserver Considerations 13. Securing Your Domains and DNS 14. DNS and DDoS Attacks 15. IPv6 Considerations 16. Other Books You May Enjoy

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...

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