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Topics /
Networking & Internet
The most popular blog posts about networking & internet on Hacker News. 3,019 posts.
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We improved the performance of a userspace TCP stack in Go
Learn how we enhanced TCP performance in Coder to achieve 5X faster throughput by optimizing buffer sizes, implementing the HyStart algorithm, and minimizing packet loss, significantly improving remote development experiences.
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1.1.1.1 lookup failures on October 4th, 2023
On 4 October 2023, Cloudflare experienced DNS resolution problems. Some users may have received SERVFAIL DNS responses to valid queries. In this blog, we’re going to talk about what the failure was, why it occurred, and what we’re doing to make sure this doesn’t happen again
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Own Your Identity
This paragraph in Marshall Kirkpatrick’s Why I’ll Never Redirect my Personal Blog to Google Plus scared me a bit:
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A new generation of Tailscale access controls
Grants are Tailscale’s next generation of access controls that combine network and application capabilities into a single syntax.
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WebVM: WASM virtual machine in browser with networking via Tailscale
WebVM, our virtual Linux environment running fully client-side in the browser, now supports networking via Tailscale.
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Not all TLDs are Created Equal
In light of the recent cancellation of the queer.af domain registration by the Taliban , the fragile and difficult nature of country-code top-level domains (ccTLDs) has once again been comprehensively demonstrated. Since many people may not be aware of the risks, I thought I’d give a solid explainer of the whole…
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FIDO Alliance publishes new spec to let users move passkeys across providers
The FIDO Alliance has published a working draft of a new set of specifications for secure credential exchange that, when standardized and implemented by
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Wi-Fi Alliance Brings Wi-Fi 6 into 6 GHz
Wi-Fi 6E will rapidly deliver benefits in 6 GHz once available
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Google Meet premium video meetings–free for everyone
To help businesses, schools, and others navigate remote work and life, we're making our premium video conferencing solution free for all.
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Was the Internet created to survive a nuclear strike? (2022)
Was the Internet Created for Nuclear War?
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Timeliness without datagrams using QUIC
Media over QUIC: Rethink your approach. *Unless you're doing something dope.
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Analysis of the GFW's Unconditional Port 443 Block on August 20, 2025
The Great Firewall of China (GFW) conducted a large-scale, unconditional block targeting TCP port 443 on August 20, 2025. This report documents the measurements and analysis we conducted of that event.
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Modern messaging: Running your own XMPP server
Since a years we know, or might suspect, our chats are listend on, our uploaded files are sold for advertising or what purpose ever and the chance our social messengers leak our private data is incredibly high. It is about time to work against this.
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No-IP's Formal Statement on Microsoft Takedown
Microsoft served a federal court order and seized 22 of our most commonly used domains because they claimed that some of the subdomains have been abused.
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ETS Isn't TLS and You Shouldn't Use It
The good news: TLS 1.3 is available, and the protocol, which powers HTTPS and many other encrypted communications, is better and more secure than its predecessors (including SSL). The bad news: Thanks to a financial industry group called BITS, there’s a look-alike protocol brewing called ETS (or...
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Making RSS More Fun
I wrote a browser extension to try and make finding random, independent websites more fun.
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Network Neutrality
Follow the Stripe blog to learn about new product features, the latest in technology, payment solutions, and business initiatives.
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Ghost in the ethernet optic
A few months ago I stumbled on a tweet pointing out a kind of SFP optic that claimed to be smart, made by a Russian company Plumspace . After going through their Smart SFP product listings I was on-board and decided I needed to have some of them.
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Extremely Low Frequencies
The submarine is a surprisingly ancient technology—at least in its early, primitive forms. The idea is quite simple, that a well-enough-sealed boat ought to be able to submerge and resurface. It's the practicalities that make the whole thing difficult. It is generally considered that the US Civil War was the first use…
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Stupid certificate tricks
Sometimes I do things for no real reasons other than “because I can” and/or “it amuses me”. For example, embedding a snarky message into my HTTPS certificate.
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RIAA to .ORG Registry: Take down ThePirateBay
We were forwarded a letter from the RIAA via our lawyers on Friday whom in turn received it from Public Interest Registry (PIR), who is the registry operator of the .ORG top level domain. The letter was sent from the Recording Industry Association of America (RIAA) asking PIR "to reconsider whether it…
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Mozilla Fights for Net Neutrality This May (and Always)
Mozilla is continuing to fight for net neutrality — in the courts, alongside Americans, on Twitter and, today, by joining the Red Alert protest. The Red
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No NAT November: My month without IPv4
Near the beginning of November, nixCraft posted this challenge on Mastodon, daring people to take the No NAT November challenge and disable IPv4 for the month, relying only on IPv6:
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Cross-Platform P2P Wi-Fi: How the EU Killed AWDL
This post investigates how we got from Wi-Fi Direct to AWDL to Wi-Fi Aware, what makes Wi-Fi Aware technically superior, and why this shift unlocks true cross-platform peer-to-peer connectivity for developers.
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Is Your Cat 6 Cable a Dog? (2013)
Category 6 cables -- and to a lesser extent, Category 6a cables -- are widely available from a variety of vendors, including variety stores, office supply stores, consumer electronics stores, and online shops. While a great many people are content to run wireless networks in their homes, the fact is that if you need…
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