Packt+ | Advance your knowledge in tech

0

All Products

Best Sellers

New Releases

Books

Videos

Audiobooks

Free Learning

Managing Mission - Critical Domains and DNS

You're reading from Managing Mission - Critical Domains and DNS Demystifying nameservers, DNS, and domain names

Product type Paperback

Published in Jun 2018

Publisher Packt

ISBN-13 9781789135077

Length 368 pages

Edition 1st Edition

Concepts

Networking

Author (1):

Mark E.Jeftovic

View More author details

Table of Contents (23) Chapters

Title Page

Copyright and Credits

Dedication

Packt Upsell

Contributors

Preface

1. The Domain Name Ecosystem FREE CHAPTER

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

1. Other Books You May Enjoy

Leave a review - let other readers know what you think

Index

Debugging under anycast

Debugging under anycast can be tricky ,since there are multiple nodes that could potentially reply to given queries. If what you are debugging is an out-of-sync node, you have to find it.

You can use the existing convention of querying for bind.hostname, which can be configured explicitly to any arbitrary string (it defaults to the result of a call to gethostname() otherwise):

(toronto shell)$ dig @f.root-servers.net CH TXT hostname.bind +short "YYZ.cf.f.root-servers.org"
(tokyo shell)$ dig @f.root-servers.net CH TXT hostname.bind +short "ICN.cf.f.root-servers.org"

The non-BIND specific ID.SERVER label was later specified, which accomplishes the same thing:

(toronto)$ dig @f.root-servers.net CH TXT id.server +short "YYZ.cf.f.root-servers.org"
(tokyo)$ dig @f.root-servers.net CH TXT id.server +short "ICN.cf.f.root-servers.org"

This enables you to figure out which specific member of an anycast constellation you are talking to.

Anycast DNS and DDoS mitigation

Anycast is often...

The rest of the chapter is locked

Register for a free Packt account to unlock a world of extra content!

A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.

Unlock this book and the full library FREE for 7 days

Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of

Start free trial

Renews at £13.99/month. Cancel anytime

Authors (1)

Mark E.Jeftovic

Mark E.Jeftovic

Mark E. Jeftovic is the cofounder and CEO of easyDNS Technologies Inc, the managed DNS provider and domain name registrar. He was formerly a director to the Canadian Internet Registration Authority (CIRA) and is currently a director to the Internet Society Canada Chapter. Mark entered the internet space in the early '90s as a computer programmer and Unix sysadmin, working for the early dial-up ISPs in Toronto before cofounding a web development firm in 1995 that later morphed into easyDNS. A lifelong guitarist and avid bookworm, Mark lives in Toronto with wife Angela and daughter Emily.

See other products by Mark E.Jeftovic

Other recommended products

Related to this chapter

Hands-On Cybersecurity with Blockchain

Hands-On Cybersecurity with Blockchain

Despite the growing investment in cybersecurity, modern attackers manage to bypass advanced security systems. Blockchain and Hyperledger architecture provide a safer way of avoiding such attacks. This book will help you build blockchain-based apps for DDoS protection, PKI-based identity platform, Two-factor authentication and DNS Security platform.

Jun 2018 7h 52m

Personalised recommendations for you

Based on your interests and search pattern

Mastering Palo Alto Networks

Mastering Palo Alto Networks

Mastering Palo Alto Networks is a hands-on guide that helps you progress from a beginner to an expert in configuring Palo Alto firewalls. It covers setup, management, and optimization with real-world examples for both on-prem and cloud environments.

May 2025 21h 32m

Cloud Native Anti-Patterns

Cloud Native Anti-Patterns

Uncover and fix cloud native anti-patterns across strategy, culture, security, and operations. This book guides you through the practical steps to avoid common traps and shift your organization toward cloud-native best practices that drive lasting success.

Mar 2025 14h 44m

AWS for System Administrators

AWS for System Administrators

Master the art of designing, deploying, and managing AWS infrastructure with industry best practices. You'll learn to automate workflows, optimize costs, and implement robust disaster recovery strategies for scalable cloud success.

May 2025 14h 12m

Kubernetes for Generative AI Solutions

Kubernetes for Generative AI Solutions

Learn step by step how to design, optimize, and deploy Generative AI projects on Kubernetes. Covering networking, observability, security, scaling, and cost optimization strategies, this guide takes you from first deployment to production excellence.

Jun 2025 11h 8m

Azure Cloud Projects

Azure Cloud Projects

Azure Cloud Projects offers a hands-on introduction to Microsoft Azure, designed to help you build real-world cloud solutions, develop job-ready skills, and apply best practices that are widely used across the cloud computing industry.

May 2025 8h 28m

Sustainable Cloud Development

Sustainable Cloud Development

This book introduces best practices for developing and deploying high-performing, eco-friendly cloud applications, helping you meet sustainability goals while delivering efficient cloud solutions.

Mar 2025 9h 12m

SLIs and SLOs Demystified

SLIs and SLOs Demystified

This comprehensive guide to reliability engineering dives deep into SLIs, SLOs, observability, and incident management. It shows you how to optimize system reliability and make data-driven decisions to balance performance and business goals.

Apr 2025 10h 0m