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Topics /
Networking & Internet
The most popular blog posts about networking & internet on Hacker News. 86 posts.
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Quad9 to exit France
A public and free DNS service for a better security and privacy
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There were BGP anomalies during the Venezuela blackout
The Low Orbit Security Radar is a weekly security newsletter from an offensive practitioner's perspective. One idea, curated news, and links worth your time. News: There Were BGP Anomalies During The Venezuela Blackout When watching the situation in Venezuela unfold, the phrase "It was dark, the lights of Caracas
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We’re making Bunny DNS free
Your DNS bill shouldn't scale with your traffic. So we removed query fees from Bunny DNS entirely. No per-request billing and no query limits.
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Saving 100 terabytes of memory by optimizing 1.1.1.1's DNS cache
Five Rust-level memory optimizations to the DNS cache layout of Big Pineapple cut per-entry memory by 56%, freeing approximately 100 TB of memory across Cloudflare's fleet.
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BirdyChat becomes first European chat app that is interoperable with WhatsApp
We are excited to share that Balsio is the first chat app in Europe that can exchange messages with WhatsApp under the Digital Markets Act. This is a big step forward for anyone using Balsio for work.
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We need a federation of forges
Git is decentralized, but what of the rest?
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Web Search API
Search the web from your AI agents and applications through AI Gateway with Ceramic.ai, Exa, and Linkup.
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Outlook.com is rejecting email from domains without DMARC
Since November 5, Outlook.com and Hotmail have been bouncing mail from domains with no DMARC record, small senders included. What changed, and the one-record fix.
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An Introduction to Meshtastic
Discover Meshtastic: a community-driven, open-source project using LoRa radios for long-range, off-grid communication.
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OpenAI’s WebRTC problem
Media over QUIC: There are ways to do voice AI without being traumatized by WebRTC.
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The Day the Telnet Died
On January 14, 2026, global telnet traffic observed by GreyNoise sensors fell off a cliff. A 59% sustained reduction, eighteen ASNs going completely silent, five countries vanishing from our data entirely. Six days later, CVE-2026-24061 dropped. Coincidence is one explanation.
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Cloudflare crawl endpoint
Browser Rendering's new /crawl endpoint lets you submit a starting URL and automatically discover, render, and return content from an entire website as HTML, Markdown, or structured JSON.
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Shutting down our public encrypted DNS
Mullvad has operated public encrypted DNS (DoH) servers since 2022. They are unnecessary when using Mullvad VPN — traffic is already encrypted and Mullvad VPN's internal DNS handles all queries.
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Rocketlab acquires Iridium
Unites Rocket Lab's leading launch and satellite manufacturing capabilities with Iridium's global network, spectrum, and experience to unlock critical space applications. Adds material revenue scale and is significantly accretive to Rocket Lab's cash flow generation and profitability.
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Tailscale Peer Relays is now generally available
Work around hard NATs and tricky networks with production-grade connectivity nodes you control
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What came first: the CNAME or the A record?
A recent change to 1.1.1.1 accidentally altered the order of CNAME records in DNS responses, breaking resolution for some clients. This post explores the technical root cause, examines the source code of affected resolvers, and dives into the inherent ambiguities of the DNS RFCs.
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Google Hits 50% IPv6
IPv6 has reached a major milestone, with around half of Google’s users now accessing its services over IPv6.
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A closer look at a BGP anomaly in Venezuela
There has been speculation about the cause of a BGP anomaly observed in Venezuela on January 2. We take a look at BGP route leaks, and dive into what the data suggests caused the anomaly in question.
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Tailscale SSH: Investigation and remediation update
Securely connect to anything on the internet with Tailscale. Built on WireGuard®️, Tailscale enables you to make finely configurable connections, secured end-to-end according to zero trust principles, between any resources on any infrastructure.
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Among European Companies That Use a CDN, Nearly 9 in 10 Use Cloudflare
Across 44,143 European companies with a detected CDN, 89.6% use Cloudflare. We publish the per-country counts and what the 2025-26 outages showed.
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Quack: The DuckDB Client-Server Protocol
DuckDB instances can now talk to each other using the Quack remote protocol. This lets you run DuckDB in a client-server setup with multiple concurrent writers. In DuckDB's spirit, Quack is simple to set up and builds on proven technologies such as HTTP. It's also fast, which allows it to support workloads ranging…
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We have a 99% email reputation, but Gmail disagrees
Oooooh boy. Let’s get this out of the way first. Email sucks. Now to the how and the why. We’re builders. We love making tools to help designers and developers live a little bit easier. We’re pretty good at it. Marketing, though? We do our best, but the truth is, we don’t like to bother […]
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Mesh LLM: distributed AI computing on iroh
How Mesh LLM pools existing GPU resources across machines into a single OpenAI-compatible API, built on iroh.
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RustDesk now supports true unattended remote access on Wayland
Try the RustDesk Wayland preview for x86_64 Debian/Ubuntu-based systems: unattended access across multiple monitors and at the login screen after reboot.
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YouTube, your RSS feeds are broken
We'd love to keep using your feeds in our feed readers, but we're gonna need them to work.
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The federated code forge
For most of the past two decades, the code forge has been where projects live: where code is hosted, where changes are reviewed, and where contributors find each other. Forges offered convenience in exchange for centralisation.
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If IPv4 were land
An interactive world map where every country is resized by how many IPv4 addresses it holds instead of its land area. Flip between real land and IPv4 land, zoom in, and compare countries.
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Accenture to acquire Ookla
Accenture has entered into an agreement to acquire Ookla, a global leader in network intelligence, competitive benchmarking and customer experience analytics.