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The most popular blog posts about networking & internet on Hacker News. 3,019 posts.
At Signal, we’ve been thinking about the difficulty of private contact discovery for a long time. We’ve been working on strategies to improve our current design, and today we’ve published a new private contact discovery service. Using this service, Signal clients will be able to efficiently and s...
Building a state machine for travel - tracking Schengen days, the 183-day rule for tax residency across countries, and visa thresholds when governments won't expose state.
Work around hard NATs and tricky networks with production-grade connectivity nodes you control
The personal website and blog of Daniel Long Sockwell, a lawyer-turned-programmer with an interest in web development, open source, and making things as simple as possible.
Last updated: 2017/07/21 12:00 UTC . This page will be updated when new information becomes available. See the list of updates .
Engineers prove their technique is effective even with the lowest-cost WiFi devices
Early this year, the Internet Archive put out a call for a distributed web . We heard them loud and clear.
This morning, the Federal Communications Commission officially published its order overturning net neutrality rules in the Federal Register. We had origina
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.
Personal blog of Stephen Diehl - Software engineer writing about technology, programming, and the future
People report that self-hosted emails always end up in Gmail spam. Is there anything Google can do about it?
A very long article about commercial VPNs, their marketing strategies, and the truth behind their privacy and security claims.
The big news in crypto today is the KRACK attack on WPA2 protected WiFi networks. Discovered by Mathy Vanhoef and Frank Piessens at KU Leuven, KRACK (Key Reinstallation Attack) leverages a vulnerab…
Since Tailscale was founded in 2019, customers have been forced to choose between either Tailscale or Mullvad without the ability for them to co-exist.
November has sucked so far. One upside of the terrible nonsense is that more people are fleeing X. Many are choosing Bluesky. I’ve seen a bunch of takes about this recently, but I keep seeing things I disagree with. I figure that’s a good enough excuse to write more about this weird-assed social network.
Critical zero-click vulnerability chain in macOS (patched)
Cloudflare is protected from attacks by the Gatebot DDoS mitigation pipeline. Gatebot performs hundreds of mitigations a day, shielding our infrastructure and our customers from L3 and L7 attacks.
Guest Post: Learn about the significant recent changes being made to the core Internet protocols.
Today the Federal Communications Commission repealed net neutrality — a terrible step for the future of a free and open internet and for…
A classically trained sysadmin shouting into the void.
Introducing super-fast and secure AI-powered calls, and a nifty setting for video compression quality.
Programming note: the subscribe link was broken for a while because I am bad at computers (yet another case of "forgot to enable the systemd unit"). It's fixed now. The unsubscribe link was also broken and is now fixed but, you know, maybe that was a feature. Did wonders for reader retention.
HTTP headers are an important way of controlling how caches and browsers process your web content. But many are used incorrectly or pointlessly, which adds overhead at a critical time in the loading of your page, and may not work as you intended.
Explore A2A, Google's new open protocol empowering developers to build interoperable AI solutions.
Oh you like SSH? Name every flag.
