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SSH Handshake Explained
Secure Shell (SSH) is a widely used Transport Layer Protocol to secure connections between clients and servers. In this post we explain how SSH handshake works.
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The latest blog posts to take off on Hacker News. 4,838 posts.
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AirPods Pro Page Performance
foobartel Ltd. - Web Design & Development
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Shared Cache Is Going Away
Browsers historically have had a single HTTP Cache. This meant that if www.a.example and www.b.example both used cdn.example/jquery-1.2.1.js then JQuery would only be downloaded once. Since it's the same resource regardless of which site initiates the download, a single shared cache is more efficient. [1]…
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Why to use ‘python -m pip’
Fellow core developer and Canadian, Mariatta, asked on Twitter about python -m pip and who told her about that idiom along with asking for a reference explaining it: I learned sometime ago that we should be doing `python -m pip install ...` instead of simply `pip install ...` but now I can'
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Living skin can be 3D-printed, with blood vessels
TROY, N.Y. — Researchers at Rensselaer Polytechnic Institute have developed a way to 3D print living skin, complete with blood vessels. The advancement, published online today in Tissue Engineering Part A, is a significant step toward creating grafts that are more like the skin our bodies produce naturally.
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They Might Never Tell You It’s Broken
They Might Never Tell You It's Broken
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Chrome 0-day exploit used in Operation WizardOpium
Recently, we caught a new unknown exploit for Chrome browser. After reviewing of the PoC we provided, Google confirmed there was a zero-day vulnerability and assigned it CVE-2019-13720.
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Homebrew Cray-1A
As part two ( see previous attempt ) of my ongoing series in ‘computational necromancy,’ I’ve spent the last year and a half or so constructing my own 1/10-scale, binary-compatible, cycle-accurate Cray-1. This project falls purely into the “because I can!” category – I was poking around the internet one day looking…
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Setting up a home VPN server with WireGuard
Motivation For a moderately security conscious geek like myself, there can be a number of reasons to want to set up a home VPN server: Accessing your home computer via screen sharing without exposing it to the Internet (and thereby to potential evil-doers). Accessing servers with IP white lists (common case for…
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DKIM Demystified
DKIM is a way to secure your email, increasing deliverability and avoiding fraud. A 20i Senior Systems Administrator explains DKIM in depth.
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Firefox to Discontinue Sideloaded Extensions
To give users more control over their extensions, support for sideloaded extensions will be phased out starting with Firefox 73.
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Remember QR Codes? They’re More Powerful Than You Think
China’s mobile payment ecosystem, the largest in the world, is built upon QR codes. But that technology extends far beyond shopping to ease friction throughout daily life. On a recent trip to China, I personally interacted with QR codes 42 times in a single day—to ride the train, to book a workout, to charge my...
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Htop Explained
Explanation of everything you can see in htop/top on Linux
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Typestates in Rust (2018)
A long time ago, the Rust language was a language with typestate. Officially, typestates were dropped long before Rust 1.0. In this entry, I’ll get you in on the worst kept secret of the Rust community: Rust still has typestates.
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Building columnar compression in a row-oriented database
Read how we built a flexible, high-performance columnar compression mechanism for PostgreSQL to add scalability to our favorite database.
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The FBI Is Tracking Our Faces in Secret, and We’re Suing
There can be no accountability if there is no transparency.
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We need new data books, so we started one: Cloud Data Management
Introducing Chartio and Data School’s new book Cloud Data Management (4 Stages for Informed Companies).
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The Machine Learning Software Engineering Interview
Iterations on revealing recurring patterns of thought, feeling, and behavior
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Destroying x86_64 instruction decoders with differential fuzzing
TL;DR: x86_64 decoding is hard, and the number and variety of implementations available for it makes it uniquely suited to differential fuzzing. We’re open sourcing mishegos, a differential fuzzer for instruction decoders. You can use it to discover discrepancies in your own decoders and analysis tools! In the…
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Piper Announces First GA Aircraft with Autoland Capability
VERO BEACH, FL., October 30, 2019 –Piper Aircraft announced today, the next generation M Series aircraft – the M600/SLS, standard equipped with the new
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FastSpark: A New Fast Native Implementation of Spark from Scratch
TLDR: Here is the code to explore.
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Grandmaster level in StarCraft II using multi-agent reinforcement learning
AlphaStar is the first AI to reach the top league of a widely popular esport without any game restrictions. This January, a preliminary version of AlphaStar challenged two of the world's top players in StarCraft II, one of the most enduring and popular real-time strategy video games of all time. Since then, we have…
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Getting Started with Security Keys
How to stay safe online and prevent phishing with FIDO2, WebAuthn and security keys. A look into YubiKeys, TOTP authenticator apps, passwordless and more.