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Why Zoom Chose Oracle
This post analyzes why Zoom chose Oracle as its new cloud infrastructure provider.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 1,615 posts.
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How to use FIDO2 USB keys with SSH
I recently installed Ubuntu Wacky Whatever, the latest version, and I’m very excited about it shipping with SSH 8.2, which means that I can finally use hardware USB keys for secure, easy to use authentication. If securing your devices has been something you’ve wanted to easily do yourself, read on, because it’s…
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455 Tb of live streaming were transferred during the Olympic Games Rio 2016
TL;DR Motivated by a friend, we’ll share bits of our experience during the Olympic Games Rio 2016. Before starting, I would like to clarify that Globo.com only had rights for streaming the content …
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Gemini, Gophers, and Fingers. Oh My Alternative Internets Beyond HTTPS
Finger from 1971, Gopher from 1991, and Gemini from 2019. These protocols offer decentralized, terminal-based alternatives to the modern web. The small web…
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VP8 and H.264 to both become mandatory for WebRTC
WebRTC is one of the most exciting things to happen to the Web in years: it has the potential to bring instant voice and video calling to anyone with a browser, finally unshackling us from propriet…
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SirTunnel, a personal ngrok alternative
From time to time I need to expose a development web site or web service to the world. In the past, I’ve used ngrok for that, and of course long ago I built ReverseHTTP which is somewhere in the same ballpark, but I recently got fed up with the state of affairs and decided to see whether there was something simple I…
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Tianwen-1 attitude in Mars orbit
It has been a while since the last time I wrote an update about Tianwen-1’s attitude . In that post I showed that Tianwen-1 had changed to a sun angle of 0 degrees with respect to the spacecraft’s X axis on 2020-10-22. Since then, nothing changed, even after the spacecraft arrived to Mars orbit on February 2021, so I…
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Starlink terminal revision 4: overview and tests
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”).
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The shady world of IP leasing
The IPv4 "exhaustion" is not real. The addresses got hoarded and the market devolved into a wild sub-leasing economy where anyone can choose where their IPs appear from, who owns them on paper, and scrub them clean of any history.
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Acme, a brief history of one of the protocols which has changed the Internet
ACME, a brief history of one of the protocols which has changed the Internet Security Changelog 03 December 2025: article announced on Mastodon, LinkedIn and X. 03 December 2025: J.C. Jones published his reflections about 10 years of Let’s Encrypt. A must read! 03 December 2025: J.C. has also been kind enough to…
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How Verizon's Advertising Header Works
Over the past couple of days, there’s been an outpouring of concern about Verizon’s advertising practices. Verizon Wireless is injecting a unique identifier into web requests, as data transits the network. On my phone, for example, here’s the extra HTTP header. 1
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The Social Smolnet
The Social Smolnet par Ploum - Lionel Dricot.
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Sufficient Decentralization for Social Networks
A design pattern to reduce centralized control and change incentives in social networks.
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ANSI escape codes (2019)
My team writes a lot of command line tools, and we like to assume that people aren’t using a literal VT100 (meaning: we liberally use colours, italics, and basically every other terminal feature available to us). This tends to result in strings in our code that look a little like this:
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Using Gmail with Mutt
A tutorial on using gmail with mutt, a console-based email client, along with some advanced concepts such as encrypting your account password and sending emails from a different <code>From</code> address.
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Review: A Dive into Mikrotik's Weird SmartNIC (2022)
an addendum has been posted, read it here 2023/12/02 - Hello, Hacker News! Check out these pictures of my cat: https://emma.pet Back in February, Mikrotik announced the CCR2004-1G-2XS-PCIe, a peculiar 25gbps NIC. They’ve thrown an entire router into a PCIe NIC. But why? Wait, why? Mikrotik’s product listing has…
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Wi-Wi is wireless time sync at 1 nanosecond
At NAB, I found a demo of Wi-Wi STAMP, a wireless time synchronization protocol that came out of Japan's NICT. Wi-Wi stands for Wireless 2Way interferometry, and it uses the 900 MHz band for picosecond-level time sync, and mm-level distance accuracy, in a tiny box, currently the size of a smartphone. The system is…
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Hacking Ethernet out of Fibre Channel cards
This story, like another in the past , started as an eBay purchase that I would soon regret. I was scrolling through my favorite eBay supplier when I found a listing titled Job Lot Of Roughly 350 Various Network Cards . This of course piqued my interest. Some close photo inspection identified a whole load of cards in…
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What I learned from making a DNS client in Rust
A lot about sockets, syscalls and bits
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Extracting TLS keys from an unwilling application (2020)
I want to be able to inspect the traffic of programs running on my computer. I don’t really trust those programs and ideally I’d like to put nearly all of them into a high security jail. One of those programs is Oculus software. There are a few reasons why I want to be cautious about Oculus software.
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The German Problem with Tor
EAs of the 5th July 2020, there are 1357 Tor bridges available for users in countries who censor the Tor network to use. Having just over 1,000 IP addresses is not a lot for such a big privacy network as Tor is, especially considering that the number of Tor Bridges peaked at 4,227 on the 4th January 2015. That means…
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Xfinity Stream on Linux: A Tale of Widevine, ChromeOS, and a patched Glibc
If your household uses Xfinity for cable, you have almost definitely heard of Xfinity Stream at some point. If you haven’t, Xfinity Stream is a service that allows you to access Xfinity’s on-demand TV over the internet. This can be useful if you want to watch something on Xfinity’s on-demand TV but do not want to go…
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The communications systems at the US Central Command headquarters
A weblog about Signals Intelligence, Communications Security and top level telecommunications equipment