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The most popular blog posts about networking & internet on Hacker News. 3,019 posts.
What is 5G? Why do we care? How much faster does the pipe get? What can we do with a fatter pipe? How does this relate to VR? Cars? Broadband? What’s the killer app? Really, unless you work in a few very narrow niches, you shouldn’t spend much time thinking about it.
The Matrix Conference 2025 was a huge success, and the energy and enthusiasm was just incredible!
Part of my series countering misconceptions in space journalism. Now available in audio form. Starlink, SpaceX’s plan to serve internet via tens of thousands of satellites, is a staple in the…
Internet Protocol Version 8 (IPv8) is a managed network protocol suite that transforms how networks of every scale -- from home networks to the global internet -- are operated, secured, and monitored. Every manageable element in an IPv8 network is authorised via OAuth2 JWT tokens served from a local cache. Every…
As part of our efforts to help expand connectivity around the world, Facebook Connectivity has been prototyping SuperCell, a wide-area coverage solution for increasing mobile connectivity in rural …
Published: 15-04-2023 22:30 | Author: Remy van Elst | Text only version of this article
A public and free DNS service for a better security and privacy
DAVIS, California – November 18, 2025 – The Connectivity Standards Alliance (Alliance) announced today the release of Zigbee 4.0 and Suzi, the new brand for Zigbee’s Sub-GHz feature…
Google’s private Equiano subsea cable will improve connectivity, resilience and latency for the people who live and work in Africa.
One of the hot topics of NAB, IBC, and Demuxed last year was “low latency” live video streaming. In this post we’ll examine the spectrum of different latencies that users experience, discuss the use ca...
Cache strategies that don't trade-off correctness for speed
After more than two years of discussion, over 200 design issues, 17 drafts, and 30 implementations, the HTTP/2 and HPACK specifications have now been approved by the IETF’s steering group for publication as standards-track RFCs.
Despite being designed and operated as a decentralized network-of-networks, the Internet is continuously subjected to forces that encourage centralization. This document offers a definition of centralization, explains why it is undesirable, identifies different types of it, catalogues limitations of common approaches…
When I built my Instant Webcam App, I was searching for solutions to stream live video from the iPhone's Camera to browsers. There were none.
Estimating the size of the world’s communications.
Ever tried to send a push notification to your phone? How hard can it be? I was surprised when I tried to push a simple push notification without involving a third party. It's not just hard they have made it near impossible to send a simple push notification without subscribing to their service. Moreover it doesn't…
The Global Positioning System (GPS) relies on its primary L1 frequency to broadcast precise timing and orbital data, allowing receivers on Earth to calculate their exact location. Because the L1 C/A signal transmits at just fifty bits per second, every bit of this navigation data must earn its place. Yet, within this…
Some people change their SSH port on their servers so that it is slightly harder to find for bots or other nasties and while that is generally viewed as an action of security through obscurity it does work very well at killing a lot of the automated logins you always see in /var/log/auth.log .
On a flight back to New York I read Level 3’s assessment of the latest round of the Netflix vs Internet Provider debacle. The summarized version is that basically Netflix is slow because Verizon refuses to add capacity to peer with Level 3. Fixing the situation would cost Verizon
This page describes a TCP performance problem resulting from a little-known interaction between Nagle’s Algorithm and Delayed ACK. At least, I believe it’s not well known: I haven’t seen it documented elsewhere, yet in the course of my career at Apple I have run into the performance problem it causes over and over…
