The latest blog posts to take off on Hacker News. 3,021 posts.
In October, my Dad and I got to go behind the scenes at two St. Louis Blues (NHL hockey) games, and observe the massive team effort involved in putting together a modern digital sports broadcast. I wanted to explore the timing and digital side of a modern SMPTE 2110 mobile unit, and my Dad has been involved in studio…
How I obtained my own AS number and IPv6 prefix, set up a FreeBSD BGP router with FRR, and built a tunnel overlay to bring globally routable addresses to servers that already have provider-assigned...
Learn how DNS works: hierarchy, records, TTL caching, and the full resolution process with diagrams.
In iOS 26.3, Apple introduced a new privacy feature which limits “precise location” data made available to cellular networks via cell towers. The feature is only available to devices with Apple’s in-house modem introduced in 2025. The announcement1 says https://support.apple.com/en-us/126101 ↩
TLDR: I made a CLI tool that can resolve an IP address to a country, US state and even a city. https://github.com/jimaek/geolocation-tool It works well and confirms ipinfo's findings. Recently, I read how ipinfo finally proved what most technical people assumed: VPN providers don't actually maintain
IPIDEA’s proxy infrastructure is a component of the digital ecosystem leveraged by a wide array of bad actors.
This, if it is still visible: Via: Next up, age verification for ADSB?
A confusing letter from HSBC informed me that I've not been receiving their emails, and I have to change the email address they use to contact me. Except I've been receiving all of their emails just fine! The problem, it turns out, is that surveillance capitalism is now so-widespread that the bank cannot conceive that…
Solving the conflicting subnet problem with overlay addressing, WireGuard, and 1:1 NAT.
I found this tiny fanless Thunderbolt 25G Ethernet adapter. With a little tinkering, it actually works.
Aperture is an AI gateway that doesn't get in the way of developers, and works with most AI tools.
Note: this post has been revised to be split into two sections: a description of what happened, and my analysis. I hope to make it clear that, while I do not like ATProto in general, I am trying to make good-faith critcisms of specific design decisions and outcomes, and in fact, this post getting updoots on HackerNews…
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.
Disclaimer: None of this is written by AI, I’m still a real person writing my own blog like its 1999 I finally figured out how to do Gigabit Ethernet over my existing phone wires. Powerline adapter…
An automated routing policy configuration error caused us to leak some Border Gateway Protocol prefixes unintentionally from a router at our Miami data center. We discuss the impact and the changes we are implementing as a result.
TL;DR: Since at least February 2020, Microsoft's Autodiscover service has incorrectly routed the IANA-reserved example.com to Sumitomo Electric Industries' mail servers at sei.co.jp , potentially sending test credentials there.
I made my next game twice as fast by forking go's crypto library
Iran is in the midst of one of the world’s most severe communications blackouts. This post uses Kentik data to detail how this historic event unfolded, where this event lies in the context of previous Iranian shutdowns, and finally discusses what might be in store next for Iran.
Blue Origin today announced TeraWave, a satellite communications network designed to deliver symmetrical data speeds of up to 6 Tbps anywhere on Earth.
Today is a big day for us, and for everyone who cares about transparency, privacy, and having full control over their own traffic. We’re finally open-sourcing the protocol that powers AdGuard VPN. And it now has a name: TrustTunnel.
This post is intended to dispell the mistaken belief that IPv4 is more secure than IPv6 because it includes a NAT which must be configured to allow inbound traffic.
It's time for another annual roundup from the world of IP addresses. Let’s see what has changed in the past 12 months in addressing the Internet and look at how IP address allocation information can inform us of the changing nature of the network itself.
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.
I had a wierd experience which made me realize that the internet is probably dead.
The following is a summary of an internal research project conducted by Hudson H. and Andrew G.
Dotted around London, there are a number of private hotels that aren’t the sort of hotel you might expect – they’re needed to make mobile phones work on the London Underground.
Thanks HN folks for all the comments. To clarify a bit, the cables are pulled through PVC conduits under the flooring before being buried in cement. Currently the hypothesis for why the cable disintegrated so quickly is hydrolysis. Singapore is extremely humid after all. A second possibility is that I keep the…
For the past several months, I’ve been receiving and then ignoring a steady stream of concerning emails from Sendgrid, the popular email delivery service owned by Twilio that I use for sendin…
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.
