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DNS History

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DNS Documentation

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    DNS Encyclopedia

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    DNSSEC Guide : Chapter 1. Introduction

    DNSSEC Guide : Who May Not Want to Read this Guide?

    DNSSEC Guide : What is DNSSEC?

    DNSSEC Guide : What does DNSSEC Add to DNS?

    DNSSEC Guide : How Does DNSSEC Change DNS Lookup?

    DNSSEC Guide : Why is DNSSEC Important? (Why Should I Care?)

    DNSSEC Guide : How does DNSSEC Change My Job as a DNS Administrator?

    DNSSEC Guide : Chapter 2. Getting Started

    DNSSEC Guide : Hardware Requirement

    DNSSEC Guide : Network Requirements

    DNSSEC Guide : Operational Requirements

    DNSSEC Guide : Chapter 3. Validation

    DNSSEC Guide : How To Test Recursive Server (So You Think You Are Validating)

    DNSSEC Guide : Validation Easy Start Explained

    DNSSEC Guide : Trust Anchors

    DNSSEC Guide : What's EDNS All About (And Why Should I Care)?

    DNSSEC Guide : Chapter 4. Signing

    DNSSEC Guide : How To Test Authoritative Zones (So You Think You Are Signed)

    DNSSEC Guide : Signing Easy Start Explained

    DNSSEC Guide : Working with Parent Zone

    DNSSEC Guide : Using NSEC3

    DNSSEC Guide : Maintenance Tasks

    DNSSEC Guide : Chapter 5. Basic Troubleshooting

    DNSSEC Guide : Visible Symptoms

    DNSSEC Guide : Logging

    DNSSEC Guide : Common Problems

    DNSSEC Guide : Negative Trust Anchors

    DNSSEC Guide : NSEC3 Troubleshooting

    DNSSEC Guide : Troubleshooting Example

    DNSSEC Guide : Chapter 6. Advanced Discussions

    DNSSEC Guide : Proof of Non-Existence (NSEC and NSEC3)

    DNSSEC Guide : Key Storage

    DNSSEC Guide : Key Management

    DNSSEC Guide : Other Topics

    DNSSEC Guide : Disadvantages of DNSSEC

    DNSSEC Guide : Chapter 7. Recipes

    DNSSEC Guide : Rollover Recipes

    DNSSEC Guide : NSEC and NSEC3 Recipes

    DNSSEC Guide : Reverting to Unsigned Recipe

    DNSSEC Guide : Self-signed Certificate Recipe

    DNSSEC Guide : Chapter 8. Commonly Asked Questions

    DNSSEC Guide

    DNSSEC Guide : Preface

    DNSSEC Guide : Acknowledgement

    DNSSEC Guide : License

DNS Software Implementations (others)

Looking for DNS Hostmasters (security issues and DNS errors)

Customer Portal

DNS Research

    DNSSEC Report 2020-10 for Top 100 Banking Institutions

    DNS Mistakes (Part 1): Missing or Added Trailing Dots

    DNS Mistakes (Part 2): Lots of Typos

    DNS over IPv6 Research 2020-11 for Fortune 500 Companies

    DNS over IPv6 for India Domains Sample (2020-12)

    TLD Delegation and Nameserver Failures (2020-09)

    DNS Nameserver Counts for Top Million Websites (2020-08)


    Responsible Vulnerability Disclosures

    Analyzing Reverse Lookup Nameservers within AFRINIC (2021-01)

    Running ancient 1990 BIND 4 on modern Internet

    Russia Government Domains Analysis (2021-07)

    ASN and Network Prefixes for TLD Nameservers (2021-10)

    Summary of Audit of Top Ten Domains for Top TLDs (2021-10)

    Summary of Analysis for Single Top Ranked Domain for Each TLD

    DNSSEC Research for Largest 100 Banks (2022-12)

    Analyzing OpenNIC DNS (2022-01)

    SPF Record Problems (2022-05)

    Top Ten Most Frequent Test Failures (2022-04)

    DNS over IPv6 for Czech Republic Domains (2024-02)

    Finding out-of-sync TLD nameservers (2024-05)

    DNSSEC Report 2019-09 for Top 100 Banking Institutions

    Query Times Report 2019-08 for Top 100 Banking Institutions


    Potential Email Compromise via Dangling DNS MX

    Unregistered Dangling DNS Targets under Provider Domains

    Dangling MX Unregistered/NXDOMAIN

    Dangling MX available for Resell

    SPF Dangling DNS targets

    DNS over IPv6 Report 2019-10 for Fortune 500 (US) Companies

    IPv6 Report 2020-06 for US Government and Military Domains

    DNS Lame Delegations Report 2019-11


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