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Tag: DNS

System administration

doh – DNS-over-HTTPS command-line client

October 10, 2026 Steve Emms Internet

doh is a command-line DNS-over-HTTPS client that queries multiple resolvers concurrently and streams results as JSON.

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System administration

23 Useful Free and Open Source DNS Tools

October 10, 2026 Steve Emms Internet, Roundup

This roundup selects a motley collection of useful DNS tools.

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System administration

ch4 – command-line DNS client compatible with dig

October 9, 2026 Steve Emms Internet

ch4 is a command-line DNS client built with Rust that offers a concise interface and broad compatibility with dig syntax.

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Web Browsers

GateSentry – filtering proxy and DNS server

October 8, 2026 Steve Emms Utilities, Web Apps

GateSentry is a network content filter combining DNS blocking, per-device policies, safe search, proxy filtering and HTTPS inspection.

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DNSDiag – DNS measurement, troubleshooting and security auditing tools

October 7, 2026 Steve Emms CLI, Internet

DNSDiag provides command-line tools for DNS latency measurement, route tracing, resolver comparison, DNSSEC checks and security auditing.

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ExternalDNS – synchronize Kubernetes resources with DNS providers

October 4, 2026 Steve Emms Internet

ExternalDNS synchronizes Kubernetes resources with external DNS providers, automating record creation, updates and cleanup.

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dns-lexicon – manage DNS records across multiple providers

October 4, 2026 Steve Emms CLI, Internet

dns-lexicon provides a consistent CLI and Python API for creating, updating and deleting records across many DNS providers.

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DNSViz – analyse and visualise DNS and DNSSEC behaviour

October 3, 2026 Steve Emms CLI, Internet

DNSViz analyses DNS and DNSSEC behaviour, captures query data, assesses problems, and generates textual or graphical reports.

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Zonemaster-CLI – command-line DNS zone testing utility

October 3, 2026 Steve Emms CLI, Internet

Zonemaster-CLI runs comprehensive DNS configuration tests from the command line with graded findings and structured output.

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DNS-collector – DNS telemetry collection and processing tool

October 2, 2026 Steve Emms CLI, Internet

DNS-collector captures, filters, enriches and routes DNS telemetry to monitoring, analytics and security platforms on Linux.

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Flamethrower – DNS performance and functional testing utility

October 2, 2026 Steve Emms CLI, Internet

Flamethrower is a fast DNS testing utility for benchmarking and stress testing servers over UDP, TCP, DoT and DoH on Linux.

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System administration

23 Best Free and Open Source DNS Servers

September 28, 2026 Erik Karlsson Internet, Roundup, System Software

Domain Name System (DNS) is the internet’s directory service. We recommend the best free and open source DNS servers.

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System administration

9 Best Free and Open Source Recursive DNS Resolvers

September 9, 2026 Steve Emms Internet, Roundup, System Software

Discover the best free and open source recursive DNS resolvers for secure, private and reliable domain name lookups.

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System administration

dnsglobe – global DNS propagation checker

July 16, 2026 Steve Emms Internet, TUI

dnsglobe is a terminal DNS propagation checker with global resolvers, ECS testing, map and globe views, watch mode and cache diagnostics.

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System administration

16 Useful Free and Open Source DNS Clients

May 16, 2026 Steve Emms Internet, Roundup

DNS is one of these things many take for granted that is critical to using the internet. Without DNS, the internet breaks.

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ZDNS – high-speed DNS resolver and command line utility

May 1, 2026 Steve Emms CLI, Internet

ZDNS is a high-speed DNS resolver and command line utility designed for large-scale DNS measurements.

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Network

dnsx – fast and multi-purpose DNS toolkit

April 6, 2026 Steve Emms Internet

dnsx is a fast and multi-purpose DNS toolkit designed for running various probes through the retryabledns library.

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System administration

dnspyre – command-line DNS benchmark tool

December 13, 2025 Steve Emms CLI, Internet

dnspyre is a command-line DNS benchmark tool built to stress test and measure the performance of DNS servers.

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System administration

dnst – DNS administration toolbox for zone operators

December 4, 2025 Steve Emms CLI, Internet

dnst is a Rust DNS administration toolbox for zone operators, providing DNSSEC, NOTIFY and dynamic update utilities with ldns emulation.

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System administration

dyndnsc – dynamic dns update client

October 17, 2025 Steve Emms CLI, Internet

dyndnsc is a command line client for sending updates to dynamic dns (ddns, dyndns) services.

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