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HTTP/3: from root to tip
Explore HTTP/3 from root to tip and discover the backstory of this new HTTP syntax that works on top of the IETF QUIC transport.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 3,021 posts.
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Uses for cURL
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IRC is the only viable chat protocol (2022)
An article on why IRC is still the only chat protocol worth using, and a positive look at the surprisingly autistic-friendly Microsoft Comic Chat IRC client.
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Still Love Telnet
How to use the telnet command on the bash command line to debug network problems.
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ICANN Allows .COM Price Increases, Gets More Money
ICANN has announced significant changes to the contract it has with Verisign, Inc. to operate the top-level domain .COM, including .COM price increases.
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Taildrop was kind of easy
Learn about Taildrop, the first test of an experimental p2p app discovery layer in Tailscale. Understand why it was so easy to build, and how it works for large files.
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Matrix 2.0 Is Here
Matrix, the open protocol for secure decentralised communications
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Firefox appears to be flagged as suspicious by Cloudflare
Update: Cloudflare’s response indicates that this is a customer-specific rule and not a global policy. They did not mention what kind of rule is triggering this behavior though.
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Say Cheese: a snapshot of the massive DDoS attacks coming from IoT cameras
Over the last few weeks we've seen DDoS attacks hitting our systems that show that attackers have switched to new, large methods of bringing down web applications.
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BGP handling bug causes widespread internet routing instability
At 7AM (UTC) on Tuesday May 20th 2025 a BGP message was propagated that triggered surprising (to many) behaviours with two major BGP implementations that are often used for carrying internet traffic.
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Email is not broken: It’s a framework, not an application
I've been seeing a lot of posts on the webz lately about how we can fix email. I have to say, I think it's a bit short-sighted.People are saying it has outgr...
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Quake 3 Source Code Review: Network Model (2012)
The network model of Quake3 is with no doubt the most elegant part of the engine. At the lower level Quake III still abstract communications with the NetChannel module that first appeared in Quake World . The most important thing to understand is: In a fast paced environment any information that is not received on…
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NIST was 5 μs off UTC after last week's power cut
If you were 5 microseconds late today, blame it on NIST. Their facility in Boulder Colorado just had its power cut for multiple days. After a backup generator failed, their main ensemble clock lost track of UTC, or Universal Time Coordinated. But even if you used the NTP timing servers they run, they were never off by…
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There isn't much point to HTTP/2 past the load balancer
I want to write a post about Pitchfork, explaining where it comes from, why it is like it is, and how I see its future. But before I can get to that, I think I need to share my mental model on a few things, in this case, HTTP/2.
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I made 50k calls to explore the telephone network
Post describing my research wardialing Finnish freephones.
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ISPs Removing Their Customers' Email Encryption
Recently, Verizon was caught tampering with its customer's web requests to inject a tracking super-cookie. Another network-tampering threat to user safety has come to light from other providers: email encryption downgrade attacks. In recent months, researchers have reported ISPs in the US and...
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Disclosing E2EE vulnerability in multiple Matrix clients
Matrix, the open protocol for secure decentralised communications
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The federated code forge
For most of the past two decades, the code forge has been where projects live: where code is hosted, where changes are reviewed, and where contributors find each other. Forges offered convenience in exchange for centralisation.
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Matrix 1.0 – Are We Ready Yet?
Matrix, the open protocol for secure decentralised communications
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Splitting the Web
Splitting the Web par Ploum - Lionel Dricot.
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Should you use www or not in your domain? (2017)
For 20 years or so, there has been the debate over whether you should use www or not in your web site’s canonical hostname. So should you use www or not?
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Tangled, a Git collaboration platform built on atproto
A Git collaboration platform, built on AT Protocol
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Welcoming Mozilla to Matrix
Matrix, the open protocol for secure decentralised communications
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What went wrong with wireless USB
(Hat tip to the late Bill Strauss and The Capitol Steps' Lirty Dies.) A few moons ago I was thinking of ways to take my Palm OS Fossil Wr...
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Threeuk is blocking Tutanota
ISPs must not have the power to decide which online services users can or can not access.