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The most popular blog posts about networking & internet on Hacker News. 198 posts.
In my previous post Encapsulation of PDUs On Trunk Ports , I showed what happens to PDUs when you change the configuration of a trunk. You may have noticed that there are typically three different types of Ethernet encapsulations that we see:
The direct result of bulletproof infrastructure / cloud providers which are "too big to fail" is the balkanized internet . I don't think this has fully come to pass, but it might be starting to happen or might come to pass soon.
How we rolled out zstandard and other improvements across our gateway cluster to reduce the amount of bandwidth that’s used by our clients.
Getting a fiber Internet connection to your home is a big deal! It’s probably the last physical connection you’ll ever need, due to the virtually unlimited bandwidth, stability, performance, and attainable speeds.
Bartek Wydrowski, Google Research; Robert Kleinberg, Google Research and Cornell; Stephen M. Rumble, Google (YouTube); Aaron Archer, Google Research
With strong initial reviews, the HiFive Premier P550 Development Boards with pre-installed Ubuntu are in stock and available for purchase. We’re excited to announce the general availability of the Premier P550 in both 16GB & 32GB configurations.
This week's Internet cable cuts in the Baltic Sea have been widely reported, even as attempts to understand their cause and impact continue. We turn to RIPE Atlas to provide a preliminary analysis of these events and ask to what extent the Internet in the region has been resilient to them.
Userspace wireguard is fun!
Cloudflare's customers can now take advantage of Zstandard (zstd) compression, offering 42% faster compression than Brotli and 11.3% more efficiency than GZIP. We're further optimizing performance for our customers with HTTP/3 prioritization and BBR congestion control, and enhancing privacy through Encrypted Client…
Learn how WSPR (weak signal propagation reporter) technology is a fascinating facet of the Ham radio hobby in this easy-to-follow article.
We’re Matt deWet, gameplay tech lead on VALORANT , and David Straily, project tech lead on VALORANT - and we're beyond excited to be here with you all to share some of the technical details behind how we’re addressing som…
Jetstream is a streaming service that consumes an AT Proto Sync Firehose and converts it into lightweight, filterable, friendly JSON, allowing us to live tail all posts on Bluesky for as little as ~850 MB/day
We’re building an open source alternative to AWS. For IPv4 assignment and firewall rules, we use Linux’s Netfilter / Nftables. This subsystem provides a powerful way to handle packets addressed to the host. We recently came across flowtables - a network acceleration feature in the Linux kernel that works like a…
Digital audio processing is a complex yet fascinating subject. Getting a deeper understanding requires knowledge in multiple technical disciplines, including physics, electrical/electronical engineering, and some software engineering when it comes to parts of the Linux ecosystem. This article aims to demystify the…
Domien Schepers and Aanjhan Ranganathan, Northeastern University; Mathy Vanhoef, imec-DistriNet, KU Leuven
Around last year this blog, a simple static site, was running on GitHub pages, together with Cloudflare in front of it due to (perceived) unreliability with GitHub’s SSL provisioning for custom domains. In order to simplify my stack, I tried running it on Cloudflare Pages .
Two recent cable cuts that occurred in the Baltic Sea resulted in little-to-no observable impact to the affected countries, in large part because of the significant redundancy and resilience of Internet infrastructure in Europe.
This blog post provides details about nine vulnerabilities affecting the IPv6 network protocol stack of EDK II, TianoCore's open source reference implementation of UEFI.
What is QUIC protocol and how does it work ?
If someone was making a list of the most important American companies today, it’s unlikely AT&T would be anywhere near the top.
The ANPC transponder landing system at McMurdo station allows aircraft to land on the moving ice runway in poor weather or low visibility.
Revision 4 is the new version of the Starlink user terminal. As of February 2024, the new version is only available in the US. I decided to test the new hardware and compare it to the well-known REV3 (a.k.a. Gen2/V2 or “Standard Actuated”).
The amazingly scary xz sshd backdoor, Author: Bojan Zdrnja
The Internet is built on the mutual understanding of network protocols and practices, and most of those protocols are defined using Request For Comments (RFC) or Best Common Practices (BCP) documents.
For over a year, I’ve been investigating a strange issue with the internet in my apartment. I’m posting the details here in case someone more knowledgeable than me can solve the mystery. I live in graduate student housing with internet provided by the university campus. Usually things work reasonably well, with one…
