Why port numbers below 1024 still shape the internet after four decades
A home network reconfiguration exposes the deep history of reserved ports and why DNS may be the last service that can never escape port 53.
Cloudflare trims 100 TB of memory from 1.1.1.1 by redesigning its DNS cache internals
Cloudflare shrunk the data structures behind 1.1.1.1's DNS cache, saving about 100 TB of RAM without slowing down lookups.
At IETF 126, the Internet's Foundations Get an AI Makeover: IPv6 and DNS Lead the Way
Record attendance at IETF 126 saw growing consensus that IPv6 and DNS will be crucial for the AI era. Proposals on agent discovery and IPv6-only networks hint at a new four-layer Internet architecture.
Seven Years of Development: External Audit Gives Routinator a Clean Bill of Health
An external audit by X41 D-Sec confirms Routinator is on a good security level, while reporting several vulnerabilities that have been fixed in v0.15.2.
NLnet Labs Dedicates Engineering Time to Improve Rust Compiler for Safer DNS Software
The open-source DNS software maker is paying an engineer to work on the Rust compiler one day a week, strengthening the foundations of DNSSEC and resolver tools.
Cloudflare's Workers Battle Spectre: How Serverless Code is Shielded from CPU Side-Channel Attacks
Cloudflare explains how its Workers platform neutralizes earlier threats like Spectre, using Date restrictions, single-thread execution, and dynamic process isolation to keep serverless code safe from side-channel attack…
NSD 4.14 cuts DNS server memory use with new RDATA storage and optional compile-time switches
The latest NSD releases reduce memory footprint by storing resource record data as opaque blobs, with extra savings from two build-time options, and deliver faster zone loading and writing.
Rogue TLS Certificates for 1.1.1.1: Cloudflare Details Unauthorized Issuance by Fina CA
Cloudflare's public DNS resolver at 1.1.1.1 was hit by unauthorized TLS certificate issuance from Fina CA. The case shows why certificate transparency and validation matter for encrypted DNS.
Cloudflare Radar rolls out Top-Level Domain insights for every domain ending
Cloudflare Radar now offers Top-Level Domain (TLD) insights, letting researchers, website owners and everyday users explore data across all domain endings from .com to newer generic and country-code TLDs.